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AGRICULTURAL RESEARCH SERVICE

PLANT PEST CONTROL DIVISION

SURVEY AND DETECTION OPERATIONS

The Cooperative Economic Insect Report is issued
weekly as a service to American Agriculture. Its contents
are compiled from information supplied by cooperating State,
Federal, and industrial entomologists and other agricultural
workers. In releasing this material the Division serves as
a clearing house and doesroi assume responsibility for ac-
curacy of the material.

Reports and inquiries pertaining to this release
should be mailed to:

Survey and Detection Operations
Plant Pest Control Division
Agricultural Research Service
United States Department of Agriculture
Federal Center Building
Hyattsville, Maryland 20781

Volume 14 August 28, 1964 Number 35
COOPERATIVE ECONOMIC INSECT REPORT
HIGHLIGHTS

Considerable movement of GRASSHOPPERS into crops observed in Wisconsin, with loss
to late oats and damage to cabbage reported; movement into corn and soybeans
increased in Minnesota; extremely numerous in some agricultural areas of Utah.
(p. 989). EUROPEAN CORN BORER infestations in stalks and tassels of maturing
corn increasing in all sections of Maryland, and light trap catches high and
about a week earlier than in 1963 in Wisconsin. (pp. 989-990). CORN EARWORM |
larval feeding moderate to heavy on soybeans in areas of Georgia; moth flights
and egg laying heavy over most of Illinois. (p. 990). FALL ARMYWORM whorl
infestations continue to be a problem in late corn in all sections of Maryland
and considerable whorl feeding noted in areas of Wisconsin, CORN LEAF APHID
numbers declining in many areas where previously high. (p. 991). SPIDER MITES
spotty but potentially damaging on soybeans in several areas on Eastern Shore of
Maryland, SPOTTED ALFALFA APHID increasing on alfalfa in Colorado, South Dakota
and Wisconsin. (p. 992). BLISTER BEETLES (Epicauta spp.) causing some concern
by feeding on silks of corn in Wisconsin and North Dakota. , (p. 994).

GREEN CLOVERWORM populations greatly reduced in thumb area of Michigan, but out-
break reported on beans over extensive acreage in western New York (p. 997);
also reported damaging soybeans in Ohio. (p. 993).

BOLL WEEVIL increasing on cotton in southern Tennessee and conditions are favyor-
able for buildup. (p. 1000). PINK BOLLWORM larvae and exit holes becoming more
numerous in most cotton fields between Solomon and Safford, Arizona. (p. 1001).

DETECTION

New State records reported were WESTERN FLOWER THRIPS (Frankliniella occidentalis)
in Maryland, which is also apparently a new record for the Eastern United States
(p. 1004), and a WALNUT HUSK FLY (Rhagoletis suavis) from Delaware (p. 1004).

New county records include WESTERN CORN ROOTWORM (Diabrotica-virgifera) from
Putnam, Schuyler, Sullivan, Cass and Jackson Counties, Missouri (p. 991); a
BERMUDA-GRASS MITE (Aceria neocynodonis) from Merced and Yolo Counties, Califor-
nia (p. 992); and SMALLER EUROPEAN ELM BARK BEETLE (Scolytus multistriatus) from
Buffalo County, Nebraska (p. 1003).

CORRECTIONS

See page 1007.

SPECIAL REPORTS

Status of the Screw-worm in the Southwest. (p. 1010).

Reports in this issue are for week ending August 21, unless otherwise indicated.

= BE =

WEATHER OF THE WEEK ENDING AUGUST 24

Abnormally cool weather continued for the third consecutive week over the Great
Lakes region and the Northeast and for the second week over other central and
eastern portions of the Nation. Beneficial rains came to most of the Corn Belt.

TEMPERATURE: Hot weather continued over Texas and the Far Southwest. Unseasonal
coolness continued over the Great Lakes region, the Northeast, and the Midwest.
Unusually cool air from the Pacific Ocean spread over the Northwest and moved
into the upper Mississippi River Valley. The cool air pushed into the northern
Great Plains, the Great Lakes region, and the Ohio River Valley. Midday readings
on Thursday were in the 70's over the Dakotas in contrast to Wednesday's after-
noon temperatures which were in the 90's or, in some cases, exceeded 100°. The
cool weather continued over most of the eastern half of the Nation. Temperatures
over the Southeast increased to near normal during the latter part of the week.
Temperatures averaged above normal along the Pacific coast, the Mexican border,
southern Florida, and in the Washington-Baltimore vicinity, and below normal over
the rest of the Nation. Some areas in California averaged 2° to 5° above normal.
Wyoming, Nebraska, areas near the northern Great Lakes, and parts of northern
New England averaged more than 6° below normal.

PRECIPITATION: As the cold front moved across the Great Plains, thunderstorms
dropped much needed rain over the Corn Belt. Kirksville, Missouri, received
over 3 inches of rain Thursday night and early Friday morning. Locally heavy
amounts - up to 3 inches or more - fell in Nebraska, Kansas, Minnesota, Wisconsin,
Iowa, and Missouri. Heavy rains at Spring Valley, Minnesota, flooded highways
and halted traffic. Gusty winds up to about 70 m.p.h. damaged trees in Prairie
Village, a suburb of Kansas City, Kansas. The cold front triggered general
shower activity from the northern high plains of Texas southeastward across the
State. Amounts ranged widely. San Saba, on the Edwards Plateau, received 8.41
inches Saturday night. Rains of 1 to 5 inches fell over much of the drought
area from Oklahoma to the Great Lakes on Friday and Saturday. Although some
areas over the Eastern United States received rain almost daily, the weekly
totals ranged widely. Some areas received from 0.25 to 1.00 inch; others from
1 to 5 inches, Light snow accumulated on some of the higher mountains of
Wyoming and Colorado. (Summary supplied by U.S. Weather Bureau).

- 989 -

CEREAL AND FORAGE INSECTS

GRASSHOPPERS - WISCONSIN - Considerable migration into crops observed; treatment
reported in Dodge and northern Trempealeau Counties; some loss to late oats
reported in Door County; treatment of soybeans contemplated at a location in
Walworth County. Migration into and feeding on cabbage reported in Outagamie
County. Corn severely damaged in many areas, particularly fields adjacent to

cut alfalfa. Melanoplus femurrubrum (red-legged grasshopper) and M. differentialis
(differential grasshopper) approximately equal in numbers in field of corn where
latter species dominant previous week. Noticeable feeding on needles of red and
white pine noted in area. Approximately 20 percent of M. femurrubrum females
contained eggs August 19; none found in M. differentialis females same date.

Some grasshopper migration may be temporary; some will probably be permanent
unless alfalfa becomes more palatable in some areas. (Wis. Ins. Sur.).

MINNESOTA —- Annual adult survey underway in western edge of State. Counts in
area generally lower in alfalfa than few weeks ago, probably because of increased
movement into corn and soybeans. Flights noted dropping into Minneapolis on
August 16 and could be found in downtown area following day. Averaged 8 per
square yard; mostly M. femurrubrum. In southwest districts, counts ranged from
less than 1 to 36 per square yard (average 7); averaged 3 per square yard in
northwest and 9 in west central districts. M. femurrubrum predominated in all
fields surveyed. (Minn. Ins. Rpt.). NORTH DAKOTA - Adults generally noneconomic
in Mountrail, Burke, Divide, Williams and Barnes Counties, except for few
scattered light populations. M. femurrubrum, M. bivittatus (two-striped grass-
hopper) and M. sanguinipes (migratory grasshopper) dominant in northwest area;

M. femurrubrum, M. bivittatus and Chorthippus longicornis dominant in Barnes
County. (Brandvik). Mostly noneconomic in Eddy, Foster, Wells, Kidder, Sheridan,
Stutsman and Cass Counties; light infestations found in Kidder County and in
small areas of Eddy, Sheridan and Cass Counties; M. sanguinipes, M. bivittatus,
M. femurrubrum, M. packardii and Camnula pellucida (clear-winged grasshopper)
dominant species. C. longicornis found in Cass County. (Scholl). OHIO -

M. differentialis building up throughout southwest; some feeding damage to field
crops noted along grassy fence rows. (Lyon).

MISSOURI - Averaged 8-10 per square )yard along highway right-of-way in northern
Boone County; two-thirds M. sanguinipes and one-third M. differentialis. Averaged
0-2 per square yard in Chariton, Linn, Sullivan, Putnam, Schuyler, Adair and

Macon Counties; dominant species being M. differentialis or M. sanguinipes in
about equal number of fields. (Houser, Thomas, Wood). OKLAHOMA - Adult survey
completed in 45 counties, of which 13 were in west central and northwest areas.
Results show 38,000 acres of rangeland infested in Roger Mills, Ellis, Woods and
Woodward Counties. Dominant species included Ageneotettix deorum, M. bivittatus,
Mermiria maculipennis and Amphitornus coloradus. Populations light in other 9
counties surveyed. (Okla. Coop. Sur.). UTAH -— More numerous than for past 12
years in Summit County, but not serious. (Moore). Extremely numerous in portions
of Nephi-Levan area of Juab County, about some farms in Heber area of Wasatch
County and in lower Provo Canyon in Utah County; Melanoplus sanguinipes dominant in
these areas. Damaging in few small areas of Kane County. (Hatch, Knowlton).
NEVADA - Heavy mixed population of M. sanguinipes, M. bivittatus and Camnula
pellucida averaged 50 per square yard at Red House, Lander County. (Maloney).
Populations of M. sanguinipes, M. packardii (Packard grasshopper), M.. femurrubrum
and Trimerotropis sp. in Douglas, Lyon, Pershing and Washoe Counties equal to or
below populations present in 1963. (Cooney). ARIZONA - Heavy populations of
several species present on 250,000 acres in areas of Santa Cruz, Cochise and

Pima Counties. (Ariz. Coop. Sur.). CALIFORNIA - Trimerotropis pallidipennis
adults medium in grassland in Burnt Ranch, Trinity County. tcait oop. Rpt.).
EUROPEAN CORN BORER (Ostrinia nubilalis) - MAINE - Moderately damaged sweet

corn in York and Cumberland Counties. (Boulanger, Aug. 15). NEW YORK - Second-
brood larvae mostly small in Hudson Valley; ranged to fourth stage by mid-August.

About 10 percent of early whorl corn shows etching; larvae scarce in silk and ear
tips. Moths still present in traps and fields. (N.Y. Wkly. Rpt., Aug. 17).

| MARYLAND - Stalk and tassel infestations continue to increase in maturing corn

in all sections. (U. Md., Ent. Dept.). MICHIGAN - Adults, eggs, larvae and pupae

- 990 -

generally distributed. (Newman). WISCONSIN - Emergence about complete in
southern counties. Blacklight trap catches indicated high counts for August 15-16
and probably marked peak flight. Counts high in most traps; numbers about double
and week ahead of last season. Egg mass counts generally low, although 30 fresh
masses per 100 plants noted in field near Arlington August 17; substantial hatch
in area expected August 20. Observation of 50 plants in field near Spring Green
(area more advanced than most other areas) on August 19 revealed the following:

4 fresh egg masses, 5 first stage, 16 second stage, 2 third stage and 2 fourth-
stage larvae. Few fresh eggs and second-stage larvae noted on late sweet corn in
western Dane County. (Wis. Ins. Sur.). SOUTH DAKOTA - Adult activity at peak

in east central region; first and second-stage larvae readily found in southeast.
(Hintz). MISSOURI - Infested 15-70 percent of corn plants in north central area;
larvae ranged 1-3 per plant with 80 percent in stalks. In west central area,
20-80 percent of plants infested with 1-4 larvae per plant; 100 percent of larvae
in stalks. (Houser, Thomas, Wood).

SOUTHWESTERN CORN BORER (Zeadiatraea grandiosella) - ARKANSAS - Larvae girdling
stalks in southeast; also noted below ground level. Few larvae now spotless.
(Ark. Ins. Sur.).

CORN EARWORM (Heliothis zea) - NEW YORK - Eggs hatched during warmer weather
earlier in month in Hudson Valley; larvae appearing at harvest most important
concern to growers, Light, but comparably serious at present. All stages
present; buildup to end of season expected to be medium to heavy, depending on
temperature. Apparently serious in Livingston County. (N.Y. Wkly. Rpt., Aug. 17).
DELAWARE - Adults increasing in blacklight trap collections in Sussex County.
(Burbutis, Crossan). GEORGIA - Moderate to heavy feeding on pods of soybeans
noted in Tattnall and Houston Counties. (Vanderford). Heavy damage to pods

noted in Dodge County. (Bennett). ARKANSAS - No larvae noted in 10 fields of
soybeans checked in Desha and Lincoln Counties; moths noted in these fields.

Eggs noted on soybeans in Desha County; larvae observed in 5 of 16 fields checked
in Lonoke County, but highest count was 3 per 30 feet of row. (Ark. Ins. Sur.).
INDIANA - Third to fifth-stage larvae infesting corn ears in southern quarter of
State; 24 percent of ears infested in southwest, 10 percent in south central and

5 percent in southeast section. (Saugstad). ILLINOIS - Moth flights and egg
laying continue ‘heavy over most of State. In central section, eggs present on
15-50 percent of ears in recently pollinated corn. In area south of State Route 6,
40-60 percent of ears of late maturing corn infested. (111. Ins. Sur.).

WISCONSIN - Pupation underway. Blacklight trap counts indicate emergence underway
in few areas. Indications are that populations will be heavier than normal this
season, Some early harvested corn showed number of ears previously infested.
(Wis. Ins. Sur.). NEBRASKA - Very light in field corn in southwest and southern
areas. (Bergman). COLORADO - This and Layphygma frugiperda (fall armyworm)
infesting corn ears in Prowers County. (Schweissing). UTAH - Caused moderately
severe damage to sweet and field corn throughout Kane County. (Hatch, Knowlton).
Infestation ranged 75-95 percent in sweet corn in Utah County home gardens,
(Knowlton). MAINE - Light numbers caused light damage to sweet corn during mid-
August in Auburn, Androscoggin County. (Boulanger).

ARMYWORM (Pseudaletia unipuncta) - MAINE - Problem was generally severe throughout
State in late July. Summary by county as follows: York - populations and damage
heavy to pasture grasses and corn in Berwick, Springvale, Sanford, Alfred, Saco,
Kennebunk and Lebanon, Cumberland - infestation and damage heavy in hayfields at
Fort Hill Road, Gorham and other locations; parasites and wilt disease attacked
population at Fort Hill. Knox and Lincoln - heavy and severely damaged forage
throughout both counties, Waldo - heavy numbers heavily damaged hayfields in )
Lincolnville, Northport and Waldo. Androscoggin and Sagadohoc - heavy populations
heavily damaged grasses and other field crops in Auburn, Lisbon, Minot and

Sabattus. Franklin - light to heavy infestations and damage reported primarily

on corn in Farmington and vicinity; infestation varied greatly; in one area

near New Sharon, sizable flocks of birds fed on larvae. Washington - numbers and
damage light on grasses and corn in Jonesboro area; moderate to heavy populations
caused moderate damage to grasses in Meddybemps area. (Boulanger, Aug. 15).

- 991 -

DELAWARE — Adult numbers continue to increase in blacklight trap collections in
Sussex County; average over 15 per night. (Burbutis, Crossan). CALIFORNIA -
Medium on Sudan grass in Laton, Fresno County. (Cal. Coop. Rpt.).

FALL ARMYWORM (Laphygma frugiperda) - NEW YORK - Trap catches relatively high in
Hudson Valley; 15 moths taken August 13 at Poughkeepsie; such numbers not usually
taken until September. All stages present; larvae and leaf etching continue to
appear in small percentage of pretassel plants. (N.Y. Wkly. Rpt., Aug. 17).
MARYLAND - Whorl infestations continue a problem in late corn in all sections;
infestation over 55 percent in one Queen Annes County field. (U. Md., Ent. Dept.).
GEORGIA - Heavy on hay crop in Lowndes County. (Kessler). OHIO - Larvae infest-
ing corn near Batavia, Clermont County. (Hamilton, Holdsworth). WISCONSIN -
Considerable feeding within whorls of late corn noted in Arlington, Theresa and
Cedar Grove areas. (Wis. Ins. Sur.). COLORADO - Infested up to 50 percent of
emerging tassels in some corn in eastern Prowers County. This and Heliothis zea
(corn earworm) infesting ears in all areas of county. (Schweissing). —s

LESSER CORNSTALK BORER (Elasmopalpus lignosellus) - OKLAHOMA —- Averaged 1 per 10
peanut plants in Ft. Cobb area, Caddo County. Populatios down due to pupation.
(Okla. Coop. Sur.).

NORTHERN CORN ROOTWORM (Diabrotica longicornis) - OHIO - Heavy adult populations
observed feeding on corn silks in field continuously in corn for 7 years in Wayne
County. (Barry). INDIANA - Adult populations very low in southern quarter of
State; averaged less than 5 percent of plants infested. (Saugstad). Adults
feeding on silks and tips of corn ears in Franklin and Decatur Counties; ranged
1-35 per ear and averaged 9 per ear in more heavily infested fields; ranged 0-10
(average 4) per ear in Decatur County. (Matthew). MISSOURI - Light to heavy in
north central area; adults feeding within ear in early planted corn causing some
kernel damage; silk feeding heavy on late planted corn. (Houser, Thomas, Wood).

WESTERN CORN ROOTWORM (Diabrotica virgifera) - MISSOURI - Adult survey completed;
new county records for week ending August 22 include Putnam, Schuyler and Sullivan
Counties. Infestations extremely light in all counties surveyed. (Houser, Thomas,
Wood), Cass and Jackson Counties, reported in CEIR 14(34):963, also new county
records. (PPC). WYOMING - Spotty infestation in Goshen County corn decreasing;
adults averaged 2-3 per plant in infested fields. (Marks).

A FLEA BEETLE (Systena taeniata) - CALIFORNIA - Heavy on corn in Perris, Riverside
County. (Cal. Coop. Rpt.).

CORN LEAF APHID (Rhopalosiphum maidis) - NEW YORK - Number apparently receding in
Poughkeepsie area; no black tassels noted, although some dingy. (N.Y. Wkly. Rpt.,
Aug. 17). MARYLAND - Continues a problem on corn in all sections but damage to
ears about over. (U. Md., Ent. Dept.). INDIANA - Adults and nymphs of little
consequence on corn in southern quarter of State. Light infestations noted on 25
percent of plants in southwest, 28 percent of plants in south central and 62 per-
cent of plants in southeast sections. (Saugstad). MICHIGAN - Populations gener-
ally declining. (Dowdy). WISCONSIN - Collapse of populations noted in most
fields, although apparent increase also noted in some sweet corn where parasites
and predators destroyed. Some sweet corn in Dodge County treated, and field corn
in county showing serious injury. (Wis. Ins. Sur.). OKLAHOMA - Populations mod-
erate in sorghum in Beaver, Texas and Cimarron Counties in panhandle area,

(Okla. Coop. Sur.). COLORADO - Appearing in whorls of sorghum in all areas of
Arkansas Valley. (Schweissing). WYOMING - Number of colonies in sorghum and
corn in Goshen County decreasing. Lady beetle adults and larvae present in large
numbers. (Marks). IDAHO - Populations drastically reduced in corn in southwest
area during past 2 weeks. High populations of lady beetles and lacewings noted
in all fields of corn. (Scott).

GREENBUG (Schizaphis graminum) — TEXAS - Found on western wheat grass during
June, July and August in panhandle area; however, populations significant in only
Deaf Smith and Hansford Counties. Det. by M. A. Palmer. (Daniels).

- 992 -

CHINCH BUG (Blissus leucopterus) - ARKANSAS - Noted inside sheaths of corn in
southeast; numbers higher than for past few years. .Surveyed area very dry.
(Ark. Ins. Sur.). OHIO - Second-generation adults noted as heavy along grassy
roadside of pasture in Highland County. (Lyon).

FALSE CHINCH BUGS (Nysius spp.) - NEW MEXICO - Spotted, light to moderate pop-
ulations causing minor damage to grain sorghum in Luna County. (N.M. Coop. Rpt.).

RICE STINK BUG (Oebalus pugnax pugnax) - ARKANSAS - Averaged 4 adults and 1.2
nymphs per 100 rice heads in 16 fields surveyed in Lonoke County. This is
slightly lower than previous week. (Little).

CONCHUELA (Chlorochroa ligata) - NEW MEXICO - Damage to heads of grain sorghum
very noticeable in many fields in Deming-Columbus area, Luna County. (N.M..Coop.
Rpt.).

CORN BLOTCH LEAF MINER (Agromyza parvicornis) - CALIFORNIA - Larvae medium in corn
leaves at Lemoore, Kings County. (Cal. Coop. Rpt.).

SPIDER MITES (Tetranychus spp.) - COLORADO - Increasing on untreated corn in
Otero, Crowley, Pueblo, Prowers and Bent Counties. Present on tenth leaf in
Otero, Pueblo and Crowley Counties; well established on lower leaves in Prowers
and Bent Counties. Light on lower leaves of sorghum in many Arkansas Valley
fields. (Schweissing). No change in situation on corn in Weld County as reported
previous week. (Urano). WYOMING - Continue feeding on corn in Goshen County
fields; damage very light to moderate with mites found on highest leaves. Pop-
ulations small. (Marks). MARYLAND - Spotty but potentially damaging populations
on soybeans in several areas of Eastern Shore, (U. Md., Ent. Dept.). DELAWARE -
Mostly T. atlanticus (strawberry spider mite), continuedto increase on soybeans

in many areas. (Burbutis, Crossan).-

A BERMUDA-GRASS SCALE (Odonaspis ruthae) - FLORIDA - Severe on stem of Bermuda
grass at Ft. Pierce, St. Lucie County. (Campbell, Aug. 4).

A BERMUDA-GRASS MITE (Aceria neocynodonis) - CALIFORNIA - Heavy on Bermuda grass
in Merced, Merced County, and in Davis, Yolo County. Species causes short,
stunted shoot clusters along runners. Mowing of grass does not eliminate this
pest as it does some other species. Merced and Yolo Counties are new county
records. (Cal. Coop. Rpt.).

WHEAT CURL MITE (Aceria tulipae) - CALIFORNIA - This species and Aculus mckenziei
(a rust mite) infesting western wheat grass in Morongo Valley, San Bernardino
County. (Cals Coop. Rpt.) .

SPOTTED ALFALFA APHID (Therioaphis maculata) - WISCONSIN - Marked increase noted
in Several fields of regrowth alfalfa over past few weeks. Winged forms
approaching 40 percent in some fields; remain below 10 percent in fields where
parasitism evident, Averaged 23 per sweep in field of new seeding alfalfa in
Brodhead area. (Wis. Ins. Sur.). SOUTH DAKOTA - Increasing in southeast region
of State; nymphs and adults ranged 350-500 per 100 sweeps in Lincoln County.
(Hintz). NEBRASKA - Averaged 114 and 242 per 10 sweeps in 2 fields, respectively,
in Dundy County. (Kindler, Stevens). Averaged 84 per 10 sweeps in Hayes County
and 330 per 10 sweeps in Furnas County. (Bergman). OKLAHOMA - Very light

(1-10 per 10 sweeps) in alfalfa checked in Beaver, Harper, Blaine and Kingfisher
Counties. (Okla. Coop. Sur.). COLORADO - Increasing on alfalfa in all areas of
Arkansas Valley; counts varied generally 100-600 per 100 sweeps; high populations
found in some Crowley County fields with 5,000-6,000 per 100 sweeps.
(Schweissing). None reported on alfalfa in Weld County. (Urano). CALIFORNIA -
Medium on 2,000 acres of alfalfa in Lancaster, Los Angeles County. (D. May,

Ext. Serv.).

3
,

= $3) =

PEA APHID (Acyrthosiphon pisum) - MARYLAND - Ranged 20-150 per sweep on alfalfa
in Frederick and Queen Annes Counties. (U. Md., Ent. Dept.). OHIO - Counts
remain low in forage fields throughout State. (Lyon). INDIANA - Adults and
nymphs generally low on alfalfa throughout southern quarter of State; averaged

4 per sweep. Maximum population observed, 25 per sweep in Gibson County.
(Saugstad). MISSOURI - Ranged 5-10 per sweep on alfalfa in northwest area.
Populations increasing due to cooler weather. (Houser, Thomas, Wood). WISCONSIN -
Populations increasing in some fields of regrowth alfalfa; populations average
100 per sweep in few fields. (Wis. Ins. Sur.). NEBRASKA - Ranged 15-60 per 10
sweeps on legumes in southwest and southern areas. (Bergman). WYOMING - Large
populations present earlier in Goshen County alfalfa tapering off. Averaged

785 adults and nymphs per 100 sweeps in third hay crop. (Marks). COLORADO -
Populations on alfalfa declining in Arkansas Valley; predator numbers increasing.
(Schweissing). UTAH - Moderately damaged several fields of alfalfa in Wasatch
and Summit Counties. (Knowlton).

POTATO LEAFHOPPER (Empoasca fabae) - MARYLAND - Light to moderate on alfalfa in
Frederick and Queen Annes Counties and on soybeans in Queen Annes and Worcester
Counties. (U. Md., Ent. Dept.). OHIO - Increasing in alfalfa in Darke County;
averaged 1.3 per sweep. (Lyon). INDIANA - Adults and nymphs averaged 4 per sweep
on alfalfa in southern quarter of State. (Saugstad). MICHIGAN - Adults ranged
4-8 per sweep in 5 fields of alfalfa in Oakland, Washtenaw and Livingston
Counties. (Newman). MISSOURI - Averaged 2 per sweep in northwest area alfalfa.
(Houser, Thomas, Wood). NEBRASKA - Averaged 22 per 10 sweeps in Chase County
alfalfa. (Bergman).

TARNISHED PLANT BUG (Lygus lineolaris) - OHIO - Averaged 29 per 25 sweeps in
Highland County alfalfa; this most abundant plant bug species on alfalfa in area.
(Lyon).

ALFALFA PLANT BUG (Adelphocoris lineolatus) - OHIO - Averaged 10 per 25 sweeps
of alfalfa in Auglaize County; predominant plant bug in west central area. (Lyon).

LYGUS BUGS (Lygus spp.) - WYOMING - Adults and nymphs averaged 87 per 100 sweeps
in Goshen County alfalfa. (Marks). NORTH DAKOTA - Some buildup in alfalfa in
southwest observed; 2-3 per sweep counted near Lidgerwood. (Frye, Gage).

MEADOW SPITTLEBUG (Philaenus spumarius) - MARYLAND - Adults generally below 1 per
sweep on alfalfa in Frederick and Queen Annes Counties. (U. Md., Ent. Dept.).
INDIANA - Adult counts per 10 sweeps on alfalfa averaged 4 in south central and
18 in south eastern sections. (Saugstad).

GREEN CLOV ERWORM (Plathypena scabra) - OHIO - Seriously damaged soybeans in Seneca
County. (Gamble). Light to moderate damage noted on soybean foliage throughout
most fields in northwest and west central sections; little or no feeding occurred
on pods, indicating treatment is questionable. (Lyon). MARYLAND - Light on
alfalfa in Frederick and Queen Annes Counties and on soybeans in Worcester County.
(U. Md., Ent. Dept.). NEW JERSEY - Survey of soybeans in Cranbury area, Middlesex
County, showed low numbers in every field examined. (Ins.-Dis. Newsltr.).

ALFALFA CATERPILLAR (Colias eurytheme) - ARIZONA - Increasing on alfalfa through-
out State; larvae ranged 125-150 per 100 sweeps. (Ariz. Coop. Sur.). MISSOURI -
Averaged 0.5-1 larva per sweep on southwest area alfalfa. (Houser, Thomas, Wood).

VARIEGATED CUTWORM (Peridroma saucia) - ARIZONA - Increased in alfalfa following

recent rains; heavy damage noted in fields in Graham and Gila Counties. (Ariz.
Coop. Sur.).

GARDEN WEBWORM (Loxostege Similalis) - ARIZONA - Infestations in alfalfa
apparently spreading on Yuma Mesa and in Yuma Valley of Yuma County; ranged

Sa to moderate. Light populations occurring in Graham County. (Ariz. Coop.
ur.).

- 994 -

VELVETBEAN CATERPILLAR (Anticarsia gemmatalis) - GEORGIA - Defoliation moderate
on soybeans in Gordon County Johnson) and moderate to heavy on same crop in
Tattnall and Houston Counties (Vanderford).

YELLOW-STRIPED ARMYWORM (Prodenia ornithogalli) - DELAWARE - Larvae infesting
alfalfa in Kent and Sussex Counties; adults very numerous in blacklight trap
collections in Sussex County. (Burbutis, Crossan). ARKANSAS - Small numbers con-
tinue to be noted in soybeans; numbers have been fewer this late in season during
past years than now present. (Ark. Ins. Sur.).

A LOOPER (Trichoplusia sp.) - GEORGIA - Caused light to moderate defoliation of
soybeans in Gordon County (Johnson), and moderate to heavy defoliation in Effing-
ham and Chatham Counties (Vanderford).

ALFALFA WEEVIL (Hypera postica) - UTAH - Larvae caused moderate damage to alfalfa
in several Wasatch and Summit County second-crop fields. (Knowlton). WYOMING -
Second-generation larvae averaged 325 per 100 sweeps’ in Goshen County alfalfa.
(Marks). MARYLAND - Adults and larvae light on alfalfa in Frederick and Queen
Annes Counties. (U. Md., Ent. Dept.).

LESSER CLOVER LEAF WEEVIL (Hypera nigrirostris) - IDAHO — New adults averaged 1 per
2 sweeps in many fields of red clover in Canyon County. (Waters).

MEXICAN BEAN BEETLE (Epilachna varivestis) - GEORGIA - Caused moderate to heavy
defoliation of soybeans in Tattnall and Houston Counties. (Vanderford).

BEAN LEAF BEETLE (Cerotoma trifurcata) - MARYLAND - Adults increasing on soybeans
on lower Eastern Shore. (U. Md., Ent. Dept.).

BLISTER BEETLES - MARYLAND - Adults of Epicauta spp. light on soybeans in Worcester
County and on alfalfa in Queen Annes County. (U. Md., Ent. Dept.). WISCONSIN -
E. pennsylvanica (black blister beetle)* populations high in many alfalfa fields
in southern area; ranged 1-12 per sweep; Feeding on corn silks common in some
fields. Cows in Fond du Lac County reported to refuse chopped feed containing
this pest. (Wis. Ins. Sur.). NORTH DAKOTA - Heavy feeding by E. pennsylvanica
on corn silks noted near Havana and Lidgerwood. (Frye, Gage). MISSOURI -
Adults averaged 1-3 per sweep in alfalfa in northwest; E. pennsylvanica
comprised two-thirds of population and Epicauta sp. one-third. (Houser, Thomas,
Wood). OKLAHOMA - Unspecified species moderate in alfalfa in Mayes County.
(Okla. Coop. Sur.).

THRIPS (Frankliniella spp.) - OKLAHOMA —- Abundant on peanuts in Caddo County.
(Okla. Coop. Sur.).

SUNFLOWER MOTH (Homoeosoma electellum) - NORTH DAKOTA - Larvae feeding on sunflower
seed in Galchutt area, Richland County. (Frye, Gage).

FRUIT INSECTS

CODLING MOTH (Carpocapsa pomonella) - MINNESOTA - Second-generation larvae noted
entering fruit in Minnetonka area, Hennepin County. (Minn. Ins. Rpt.). WISCONSIN -
Second-brood moths active in Door County; 5 taken in light trap August 14-17.
Blacklight trap catches in Dane County indicate greater activity. (Wis. Ins.
Sur.). MICHIGAN - Few adults still present in southwest area. (Dowdy). INDIANA -
Adults continue to appear in bait traps in Vincennes area; flight remains heavy.
(Cleveland). NEW YORK - Summer-brood flight heavy since August 3 in eastern area
with apparent peak August 10; fresh larval entries common on unsprayed apples.
Emergence continues slow in Niagara County. (N.Y. Wkly. Rpt., Aug. 17).

- 995 -

FALL WEBWORM (Hyphantria cunea) — PENNSYLVANIA - Obvious on cherry and other
trees in southern Chester County. (Cole, Aug. 7). Very heavy on cherry near
Susquehanna River in northern York County. (Sleesman).

RED-BANDED LEAF ROLLER (Argyrotaenia velutinana) - MAINE - Appreciable damage by
first and second broods reported in several southwestern area orchards. (Boulanger,
Aug. 15). WISCONSIN - Noticeable feeding by second-brood larvae reported in
Sheboygan area. (Wis. Ins. Sur.).

PEACH TREE BORERS - MICHIGAN- Sanninoidea exitiosa (peach tree borer) and
Synanthedon pictipes (lesser peach tree borer) larvae caused major injury to
peaches near ground level in southwest area generally; similarly damaged sweet
cherries, tart cherries and plums to lesser degree. This is perennial problem
in area. (Carpenter, Conrad).

PEACH TWIG BORER (Anarsia lineatella) - CALIFORNIA - Larvae medium in peach fruit
locally in Bakersfield, Kern County. (Cal. Coop. Rpt.).

APPLE APHID (Aphis pomi) - MAINE - Still troublesome with strong population
increases in several areas. Increased rapidly during early August on untreated
McIntosh and Red Delicious foliage in Monmouth area, Kennebec County. (Boulanger,
Aug. 15).

SAN JOSE SCALE (Aspidiotus perniciosus) - FLORIDA - All stages severe on stem and
bark of peach at Glen St. Mary, Baker County. (Collins, Aug. 5).

WHITE PEACH SCALE (Pseudaulacaspis pentagona) - FLORIDA - All stages severe on
stem and bark of persimmon at Glen St. Mary, Baker County. (Collins, Aug. 5).

APPLE MAGGOT (Rhoagoletis pomonella) - MAINE - Peak emergence occurred July 17;
adult emergence in cages declined steadily after late July. (Boulanger, Aug. 15).
MASSACHUSETTS - Adults more abundant than usual on early apple varieties in
Bristol, Middlesex, Worcester and other eastern counties. (Wave). NEW YORK -
Fly emergence continues at low level in eastern area; emergence moderate in one

of two traps in Niagara County with female numbers still high; infested McIntosh
apples found August 13 in semicommercial orchard in Clinton County. (N.Y. Wkly.
Rpt., Aug. 17). MICHIGAN - Low adult populations generally distributed through-
out fruit areas; 20 flies taken on 2 sticky-board traps in Oakland County during
week ending August 17. (Carpenter, Siefert). WISCONSIN - Adults active in un-
sprayed early apple varieties in Door County, but activity in cages in area
indicates emergence from soil has dropped to nearly Zero. Catches in ammonia bait
traps in Dane County very low. (Wis. Ins. Sur.). MINNESOTA - Adult activity
decreasing. (Minn. Ins. Rpt.).

VINEGAR FLIES (Drosophila spp.) - MICHIGAN - Numbers of adults increasing about
some fruit establishments in Berrien County. (Belter).

EUROPEAN RED MITE (Panonychus ulmi) - MICHIGAN - All stages present and populations
still high in some southwest area apple and plum orchards; miticides and cool
weather generally reduced high populations present in many orchards 2-3 weeks ago.
Egg hatch reduced and recently deposited eggs located on twigs, calyx end of
apples and on foliage. (Carpenter, Conrad). INDIANA - Active on peach; ranged
up to 50 mites per leaf in scattered orchards in southwest. (Cleveland).

NEW YORK - Declined from previous high levels in some commercial orchards in
Clinton County due to tremendous amounts of acaricides and probably aided by
subnormal temperatures. Continues chief problem in many Niagara County orchards,
especially prune, which show considerable bronzing; population appears on down
ecadee » (N.Y. Wkly. Rpt., Aug. 17). MASSACHUSETTS - Bronzing foliage in some
eastern area apple orchards. (Wave). MAINE - Activity variable in scattered
locations; numbers increased in some orchards but decreased in others. Cool, wet
period in early August should begin population reductions. (Boulanger, Aug. 15).

- 996 -

TWO-SPOTTED SPIDER MITE (Tetranychus telarius) - MICHIGAN - Populations on apples
generally reduced in southwest area by miticidal sprays against Panonychus ulmi
(European red mite). Infestations on peaches and tart cherries more common

than usual. (Carpenter).

A SPIDER MITE (Tetranychus mcdanieli) - UTAH - Damaging in some apple and cherry
orchards in Weber County. (Knowlton).

PEACH SILVER MITE (Aculus cornutus) - MICHIGAN - Caused leaf bronzing on tart
cherries in southwest area orchards. Controls not recommended because of sporadic
nature of infestations and delayed season injury. (Carpenter).

WALNUT CATERPILLAR (Datana integerrima) - MICHIGAN - Young larvae and webbing
noted on black walnut near Frankenmuth, Saginaw County. (Berlein).

NAVEL ORANGEWORM (Paramyelois transitella) - CALIFORNIA - Causing light to medium
damage to almond fruit in Arbuckle, Colusa County. (Cal. Coop. Rpt.).

BLACK PECAN APHID (Melanocallis caryaefoliae) - CALIFORNIA - Adults and nymphs on
pecan medium in Little Rock, Los Angeles County; light in Visalia, Tulare County;
and medium in Carmichael, Sacramento County. (Cal. Coop. Rpt.).

COTTONY-CUSHION SCALE (Icerya purchasi) - FLORIDA - Severe on stem of Citrus sp.
at Apopka, Orange County. Musgrove, Aug. 10).

Citrus Insect Situation in Florida - Mid-August - CITRUS RUST MITE (Phyllocoptruta
Oleivora) infested 48 percent of groves (norm 64 percent); 32 percent economic
(morm 49 percent). Summer peak occurred at mid-August and was below normal level.
A decreasing trend will prevail until late September and will be more evident

from the leaf infestation. Some infestations on fruit will increase. Highest
districts are west and south. CITRUS RED MITE (Panonychus citri) infested 57
percent of groves (norm 51 percent); 37 percent economic (norm 29 percent). TEXAS
CITRUS MITE (Eutetranychus banksi) infested 59 percent of groves (norm 38 percent);
33 percent economic (norm 19 percent). These spider mites are slightly above
normal abundance but will continue to decrease to low level. Scattered moderate
to heavy infestations may be expected in north and east districts. Abundance of
PURPLE SCALE (Lepidosaphes beckii) , GLOVER SCALE (L. gloverii) , CHAFF SCALE
(Parlatoria pergandii) , YELLOW SCALE (Aonidiella citrina), and BLACK SCALE
(Saissetia oleae) slightly lower than reported at end of July. (See CEIR 14(34):
967-970). East district has populations of Glover, chaff and black scales in

high range. Black scale also high in south district. A SNOW SCALE (Unaspis
citri) and a LESSER SNOW SCALE (Pinnaspis strachani) are above normal abundance
but infestations are spotty and are important only in limited areas. WHITEFILES
infested 65 percent of groves (norm 53 percent); 31 percent economic (norm 15
percent). Population will continue to be above normal. Adults will become
numerous in late August. Increase in transparent larval form on undersides of:
leaves, which is honeydew excreting stage, expected in mid-September. MEALYBUGS
will show marked decrease in all districts. Population will be above normal

low level for September. APHIDS will appear briefly on new growth but are not
expected to be of much importance. (W. A. Simanton (Citrus Expt. Sta., Lake
Alfred).

GRAPE BERRY MOTH (Paralobesia viteana) - MICHIGAN - Few adults present. New adult
brood expected in late August or early September. (Carpenter).

LEAFHOPPERS - NEVADA - Populations heavy on grape and apple in Reno area of
Washoe County. (Bechtel).

- 997 -

TRUCK CROP INSECTS

GREEN CLOVERWORM (Plathypena scabra) - MICHIGAN - Larvae on navy beans in thumb
area of Lower Peninsula greatly reduced in numbers. Survey in Saginaw County

on August 18 revealed only few larvae where large populations present earlier;
adults and pupae present in fields on same date but varied greatly among fields
checked. Counts highest on late maturing bean varieties with sycculent foliage.
(Wells, Vasold, Baker, Bortel). NEW YORK - Extensive area of bean acreage
infested in western part of State. Infestation has not been as heavy nor outbreak
so general in many years; red and white kidney beans apparently most affected.
Larvae eating holes in leaves, snipping off newly set buds and eating holes in
more nature buds. Damage difficult to dtermine, but severely infested fields
probably should be treated. Most concentrated feeding on foliage and pods of

red and white kidney beans in Orleans County; only leaf injury noted on pea and
black turtle beans. Several fields treated show good control. Larvae found in
every field of beans inspected in Livingston County; damage appears most severe
on red and white kidney beans; some of difference apparently due to more advanced
maturity of other varieties. Damage somewhat less in fields sprayed 2-4 weeks
ago. (N.Y. Wkly. Rpt., Aug. 17). NEW JERSEY - Infested lima beans in Cape May
County earlier in month, but infestations not sufficient to justify controls.
(Ins.-Dis. Newsltr.).

MEXICAN BEAN BEETLE (Epilachna varivestis) - MAINE - Infestation and damage

light on kidney bean planting in Woolwich, Sagadohoc County. (Boulanger, Aug. 15).
NEW YORK — More numerous than in 1963 in Livingston County, but relatively few
bean fields justify controls. (N.Y. Wkly. Rpt., Aug. 17). RHODE ISLAND - Adults
appearing in gardens in Pawtucket, Providence County. (Sorensen, Mathewson).
MICHIGAN — Pupae and newly emerged adults numerous in spots in some fields of

navy beans in Saginaw County; some recently laid egg masses noted but larvae rare
in area. (Wells, Vasold). COLORADO - Larvae noted on bean plants in Otero and
Pueblo Counties; damage not serious in fields observed. (Schweissing). UTAH -
Damage well below normal in Heber Valley area, Wasatch County. (Knowlton).

d
A THRIPS (Sericothrips variabilis) - DELAWARE - Common to very abundant on some
lima beans in areas of Sussex County. (Burbutis, Crossan).

SEED-CORN MAGGOT (Hylemya platura) - MAINE - Caused heavy damage to snap beans
at Canton, Oxford County. Injury occurred earlier in season and not reported
until mid-August. (Boulanger).

TOMATO FRUITWORM (Heliothis zea) -— UTAH - Causing some damage to tomatoes in
canning-crop area of central and northern parts of State. Peak egg deposition
occurred August 15; counts decreased recently. (Dorst, Knowlton).

BLACK CUTWORM (Agrotis ipsilon) - COLORADO - Damaging potato tubers in Gilcrest
area, Weld County. (Felton).

HORNWORMS (Protoparce spp.) - NEW MEXICO - Continue a problem on tomato plantings
in home gardens in Las Cruces area, Dona Ana County. (N.M. Coop. Rpt.).
MINNESOTA - Observed feeding on foliage of fruit of tomato in St. Paul area.
(Minn. Ins. Rpt.).

COLORADO POTATO BEETLE (Leptinotarsa decemlineata) - MAINE - Infestation rather
heavy during late July in New Sharon area, Franklin County, but no damage estimate
made. Infestation and damage light in Portland area, Cumberland County.
(Boulanger, Aug. 15). MARYLAND - Light to moderate numbers of larvae noted on

15 acres of tomatoes in Salisbury area, Wicomico County. (U. Md., Ent. Dept.).
WISCONSIN - Few noted on potatoes in Waushara County after systemics apparently
became ineffective. (Wis. Ins. Sur.).

TOBACCO FLEA BEETLE (Epitrix hirtipennis) - CALIFORNIA - Heavy on eggplant in
El Cajon, San Diego County. Calemicoops Rpt.)!-

- 998 -

POTATO APHID (Macrosiphum euphorbiae) - OHIO - Heavy infestations building up on
potatoes in central section. Severe infestation noted in Licking County.

(Wagner).

GREEN PEACH APHID (Myzus persicae) - COLORADO - Increasing slightly in late
potato-growing area of Weld County. Controls appear very effective. (Urano,
Berry). DELAWARE - Common on pepper in Kent and Sussex County. (Burbutis,
Crossan). MARYLAND - Light to moderate on commercial peppers in Worcester
Gounty. «(U. Md.7 Ent. Dept-p):

Aphids on Potatoes in Maine - Although still very small, total aphid numbers
increased somewhat during week ending August 22 on foliage of untreated potatoes
at Presque Isle and vicinity in Aroostook County. There area bout 4 Macrosiphum
euphorbiae (potato aphid) and 4 Myzus persicae (green peach aphid) on 3 leaves
per plant (top, middle, bottom), with trace numbers of Aphis nasturtii (buck-
thorn aphid) and Acyrthosiphon solani (foxglove aphid). By the 3-leaf method,

80 percent of plants infested with Macrosiphum euphorbiae, 45 percent with

Myzus persicae, and 91 percent by all species combined. Activity of entomogenous
fungi - light during early part of period - increased substantially during past
few days. (Shands et al.).

A MEALYBUG (Phenacoccus solani) - CALIFORNIA - Nymphs and adults medium on tomato
planting in Tustin, Orange County. (Cal. Coop. Rpt.).

POTATO PSYLLID (Paratrioza cockerelli) - COLORADO - Increased from 0-2 per 100
sweeps to 2-4 per 100 sweeps on borders of potato fields in Rio Grande County.
Controls applied to most fields. (Jenkins). WYOMING - Numbers decreasing on
Goshen County potatoes; averaged less than one adult per 100 sweeps. (Marks).

STRIPED CUCUMBER BEETLE (Acalymma vittata) - MAINE - Numbers and damage on
cucumbers were light during mid-July in Sanford and Portland areas of York and
Cumberland Counties, respectively, and to gourds in Orono area, Penobscot
County. Populations and damage to cucumbers were light in Portland area in
early July. (Boulanger). MARYLAND - Adults evident on late cucumbers in
Worcester County. (U. Md., Ent. Dept.).

MELON APHID (Aphis gossypii) - MARYLAND - Continues serious on cantaloups and
late cucumbers on Eastern Shore. (U. Md., Ent. Dept.).

SQUASH BUG (Anasa tristis) - MARYLAND - Heavy on garden squash at Sudlersville,
Queen Annes County. (U. Md., Ent. Dept.).

IMPORTED CABBAGEWORM (Pieris rapae) - MAINE - Light populations caused light
damage to cabbage in late July in Monmouth, Kennebec County. (Boulanger).

CABBAGE APHID (Brevicoryne brassicae) - DELAWARE - Appearing on young cabbage
in eastern Kent County. Burbutis, Crossan).

A FLEA BEETLE (Systena taeniata) - CALIFORNIA - Heavy on sugar beet in Perris,
Riverside County. CaleiCoopemh pices

ONION THRIPS (Thrips tabaci) - COLORADO - Increasing on onions in Prowers

and Bent Counties; populations ranged 50-60 per plant. (Schweissing). UTAH -
Caused moderate to normal damage in northern area. (Knowlton). IDAHO - Probably
this species damaging onion fields in southwest area. (Scott).

SIX-SPOTTED LEAFHOPPER (Macrosteles fascifrons) - MAINE - Populations and injury
on lettuce moderate during mid-July in Portland area, Cumberland County.
(Boulanger).

SWEETPOTATO WEEVIL (Cylas formicarius elegantulus) - FLORIDA - Larvae and pupae
found in 12 of 15 sweetpotato plants inspected August 12 at Goulds, Dade County.
(Brown).

- 999 -

CARROT RUST FLY (Psila rosae) - MAINE - Infestation and damage heavy on carrots
in mid-July in Isleboro, Waldo County. (Boulanger).

CUTWORMS - IDAHO - Serious in several hopyards near Wilder, Canyon County. Few
third-stage larvae present, but majority in first and second stages; eggs still
hatching. Populations quite general throughout any one yard; average about

30 per plant. (Scott).

STRAWBERRY LEAF ROLLER (Ancylis comptana fragariae) - NEBRASKA - Infesting straw-
berries in Thayer County. Bar CaERNG

RED-NECKED CANE BORER (Agrilus ruficollis) - MAINE - Moderate populations caused
moderate to heavy damage to raspberries in Farmington and-vicinity of Franklin
County. (Boulanger, Aug. 15).

A GROUND BEETLE (Harpalus pennsylvanicus) - CALIFORNIA - Causing light damage to
strawberry at Chicago Park, Nevada County. (Cal. Coop. Rpt.).

GRASSHOPPERS - UTAH - Damaged raspberries in Heber-Midway area of Wasatch County.
(Knowlton).

CYCLAMEN MITE (Steneotarsonemus pallidus) - MAINE - Infested strawberries in home
plantings in Franklin County; no degree of infestation or damage given.
(Boulanger, Aug. 15). MINNESOTA - Damage to everbearing strawberry varieties

in Excelsior and Hopkins areas severe. (Minn. Ins. Rpt.).

CABBAGE LOOPER (Trichoplusia ni) - DELAWARE - Scarce on lima beans and pumpkin-
squash in Sussex County and on cabbage in Kent County. (Burbutis, Crossan).
MARYLAND - Generally increasing on tomatoes and crucifers on lower Eastern Shore.
(U. Md., Ent. Dept.).

BEET LEAFHOPPER (Circulifer tenellus) - COLORADO —- Ranged 10-50 per 100 sweeps
on sugar beets and tomatoes in all areas of Arkansas Valley. (Schweissing)

POTATO LEAFHOPPER (Empoasca fabae) - DELAWARE - Adults and nymphs very numerous
on some lima beans in Sussex County. (Burbutis, Crossan). MARYLAND - Light to
moderate on-beans, tomatoes and squash on Eastern Shore. (U. Md., Ent. Dept.).

VINEGAR FLIES (Drosphila spp.) - MICHIGAN - Adult numbers building up and causing
annoyance around some vegetable establishments in Berrien County. (Belter).

TWO-SPOTTED SPIDER MITE (Tetranychus telarius) - MAINE - Reported on strawberries
in home plantings in Franklin County; degree of infestation and damage not
reported. (Boulanger, Aug. 15). OHIO - Infesting pole and bunch beans in Adams
County. (Mowbray, Holdsworth). FLORIDA - Infested 25,000 strawberry plants
August 3 and 8,000 of 10,000 plants August 17 at Plymouth, Orange County.
(VanPelt).

SPIDER MITES (Tetranychus spp.) - COLORADO - Heavy populations damaging goose-
berry plants in Loveland area, Larimer County. (Hantsbarger). MARYLAND -
Infestations noticeable on tomatoes in Anne Arundel County. (U. Md., Ent. Dept.).

TOBACCO INSECTS

GREEN PEACH APHID (Myzus persicae) - MARYLAND - Light to heavy infestations
continue on tobacco in all sections. Winged forms numerous. (U. Md., Ent. Dept.).

TOBACCO BUDWORM (Heliothis virescens) - MARYLAND - Few scattered, light infes-
tations noted on tobacco in St. Marys County. (U. Md., Ent. Dept.).

HORNWORMS (Protoparce spp.) - MARYLAND - Second brood light to date on tobacco
in all sections. (U. Md., Ent. Dept.).

- 1000 -

TOBACCO FLEA BEETLE (Epitrix hirtipennis) - MARYLAND - Adults continue to
increase on late tobacco in southern areas. (U. Md., Ent. Dept.).

COTTON INSECTS

BOLL WEEVIL (Anthonomus grandis) — OKLAHOMA - Infestation light to moderate in
Jackson, Greer, Tillman and Choctaw Counties; ranged 6-13 percent. (Okla. Coop.
Sur.). MISSOURI - Found in only one field in Dunklin County; 25 percent of
squares punctured. (Harrendorf, Jones). MISSISSIPPI - Infestations up in many
fields in delta counties; some localized migration occurring; where control
programs underway, population remains low or nonexistant. (Pfrimmer et al.).
TENNESSEE - Continues to increase in southern counties and conditions very
favorable for buildup. Migration occurring from fields "cutting out" into

those fields where squares and young bolls plentiful. Some fields not infested
all season now have infestations ranging 1-32 percent punctured squares. Counts
in infested fields averaged 21 percent punctured squares compared with 12 percent
previous week. Control underway in many fields for first time this season.
(Locke). GEORGIA - Punctured squares ranged 8-88 percent (average 44 percent)
in 18 fields checked in northwest, north and northeast sections. (Johnson).

In 1,436 fields checked in 21 counties, percent punctured squares ranged 1-10

in 22 percent of fields, 11-25 in 32 percent of fields, 26-50 in 12 percent of
fields and over 50 in 8 percent of fields. (Jordan).. SOUTH CAROLINA - Continues
to build up in most fields due to emergence of second-generation weevils and
shortage of squares in older cotton. Percent punctured squares in well treated
fields continues extremely low, even in areaS where untreated fields average 50-
100 percent damage. (Cott. Lett., Aug. 17). In Florence area, peak emergence
of second generation now past, although large number of adults now in field;
untreated fields practically 100 percent infested. Controls should be continued
through August. (Taft et al., Aug. 20). NORTH CAROLINA - Under control in
areas where good insecticidal program followed. (Cott. News Lett., Aug. 17).

A WEEVIL (Anthonomus sp.) - ARIZONA - Populations increasing in Aztec and Hyder
areas of Yuma County and in Stanfield and Quartz areas of Pinal County. (Ariz.
Coop. Sur.).

BOLLWORMS (Heliothis spp.) - CALIFORNIA - Populations evident throughout cotton-
growing area; larvae ranged 1-12 per 100 terminals. (Leigh, Aug. 14). Economic
levels common throughout Kern County; problems serious in Rosedale area; con-
ventaional terminal counts not adequate as many eggs laid on lateral terminals,
hence complete inspection of plants necessary to adequately evalutate population
during week ending August 6. Populations continued higher in Rosedale area
during week ending August 13; larval counts of 15-18 per 100 terminals common,
but average probably 4-6. (Black). ARIZONA - Damage continues heavy in Pima,
Pinal and Maricopa Counties. Lighter but economic infestations present in
Cochise, Greenlee, Graham and Yuma Counties. (Ariz. Coop. Sur.). NEW MEXICO -
Number of eggs on cotton plants in southern Dona Ana County increased; larval
damage spotted, with only few growers applying controls. (N.M. Coop. Rpt.).
OKLAHOMA - Infestations light (3-9 percent) in Jackson, Tillman, Greer and

Osage Counties; reported as heavy in Choctaw County. (Okla. Coop. Sur.).
MISSOURI - Eggs range 0=23 and larvae 0-22 per 100 terminals in 72 percent of
fields scouted. Controls applied to 220 fields. (Harrendorf, Jones). ARKANSAS -
Moth flight continues heavy at Kelso in southeast area and at Morrilton

in central area. Number of moths taken in light trap at.Kelso slightly higher
than previous week; number collected at Morrilton approximately twice number
collected previous week. (Ark. Ins. Sur.). MISSISSIPPI - Light trap catches

in delta counties decreasing after peak of August 15-16. Egg deposition
continued; many eggs laid down in plant. Small larvae in blooms and under dried
blooms on boll, as well as in terminals and squares. (Pfrimmer et al.).
TENNESSEE - All stages continue a problem in rank cotton in western area. Larvae
and eggs ranged 1-18 per 100 terminals in infested fields, compared wj{th 1-11
previous week, (Locke). GEORGIA - Eggs ranged 6-27 (average 16) and larvae
ranged 3-12 (average 6) per 100 terminals. (Johnson). In 1,436 fields checked

- 1001 -

in 21 counties, eggs per 100 terminals ranged 1-10 in 39 percent of fields,

11-25 in 39 percent of fields, 25-50 in 14 percent of fields and over 50 in 8
percent of fields. (Jordan). SOUTH CAROLINA - Larvae appearing in many fields;
should be easily controlled in fields where 5-day schedule still being maintained.
(Cott. News Lett., Aug. 17). Larval infestations in Florence area ranged 0.1-2
percent in treated plots and 9-26 percent in untreated fields. (Taft et al.,

Aug. 20). NORTH CAROLINA - Increasing in some areas. (Cott. News Lett., Aug. 17).

PINK BOLLWORM (Pectinophora gossypiella) - ARIZONA - Larvae and exit holes
becoming numerous in most cotton fields between Solomon and Safford in Graham
County. )(Ariz .. Coop. 'Sur...)..

CABBAGE LOOPER (Trichoplusia ni) - MISSISSIPPI - Disease destroyed populations
in many fields in delta counties; some larvae still present in many fields but
populations not economic in most instances. (Pfrimmer et al.). GEORGIA -
Light in 18 fields checked in northwest, north and northeast areas. (Johnson).
SOUTH yaad - Presently not a problem in most of State. (Cott. Lett.,

Aug. 17).

BEET ARMYWORM (Spodoptera exigua) - CALIFORNIA - Severe, widespread infestation
developed in Tulare Lake area of Kings County. Only occasional larvae found in
ether areas. (Leigh, Aug. 14).

YELLOW-STRIPED ARMYWORM (Prodenia ornithogalli) - ARKANSAS - Small numbers con-
tinue to be taken in cotton. In past years, fewer specimens have been seen this
late in season than now present. (Ark. Ins. Sur.).

COTTON LEAF PERFORATOR (Bucculatrix thurberiella) - ARIZONA - General in Yuma
County; some infestations heavy. Very light in Graham County. (Ariz. Coop.
Sure

SALT-MARSH CATERPILLAR (Estigmene acrea) - ARIZONA - Light infestations observed
in areas of Pinal and Graham Counties.) (Ariz. Coop. Sur.).

A LEAF ROLLER MOTH (Platynota stultana) - CALIFORNIA - Larvae common in some
fields in Shafter area, Kern County; feeding in terminals, squares and small
bolls. (Leigh, Aug. 14).

APHIDS - CALIFORNIA - Present in practically all fields in Kern County; not of
major concern, although slight amount of honeydew observed in few fields.
(Black, Aug. 13). MISSISSIPPI - Light in fields throughout delta counties.
(Pfrimmer et al.). TENNESSEE - Present in most rank cotton in western area.
(Locke). SOUTH CAROLINA - Occasional infestation noted in Florence area.
(Taft et al., Aug. 20).

LYGUS BUGS (Lygus spp.) - CALIFORNIA - Increasing in some Kern and Tulare
County fields; ranged 2-15 per 50 sweeps. (Leigh, Aug. 14). Economic levels
found in scattered fields throughout Kern County week ending August 6; serious
nymphal populations developing in some fields that did not show substantial
adult populations earlier. Populations generally same during week ending
August 13; approaching economic level in many fields but extremely high counts
not encountered. (Black). ARIZONA - Populations remain heavy in most cotton-
growing areas; some decrease noted in Pinal, Maricopa and Graham Counties.
(Ariz. Coop. Sur.).

STINK BUGS (Chlorochroa spp.) - NEW MEXICO - Mostly C. ligata (conchuela), with
few C. sayi (Say stink bug), damaging cotton in Columbus area, Luna County;
occasional adults also noted in cotton in southern Dona Ana County, (N.M. Coop.
Rpt.).

- 1002 -

PLANT BUGS - ARIZONA - Nymphs of Adelphocoris superbus (superb plant bug)
appearing in damaging numbers in Solomon area of Graham County; averaged 35 per
100 sweeps. (Ariz. Coop. Sur.). MISSOURI - Several species ranged 0-34 per 100
terminals in southeast area cotton. (Harrendorf, Jones).

SPIDER MITES - CALIFORNIA - Abundant in many Kern County fields during week
ending August 8. Tetranychus telarius (two-spotted spider mite) readily found
in tops of plants in many fields. Few fields still have T. atlanticus (straw-
berry spider mite) as evidenced by bottom defoliation. Spider mite populations
increased in many fields during week ending August 13 and infestations in upper
portions of plant evident throughout county. (Black). MISSOURI - Tetranychus
spp. found in only 10 percent of fields scouted; infestations noneconomic.
(Harrendorf, Jones). MISSISSIPPI - Infestations scattered over delta counties,
with heavy populations developing in many spots. Recommended controls continue
satisfactory. (Pfrimmer et al.). TENNESSEE - Continue major problem over
western area; further increase expected where controls not applied. Some
infestations severe and considerable damage occurring. (Locke). SOUTH CAROLINA -
Present in many counties but suppressed or controlled in most instances.

(Cott. Lett., Aug. 17). Occasional infestation noted in Florence area. (Taft
et al., Aug. 20).

- 1003 -

FOREST, ORNAMENTAL AND SHADE TREE INSECTS

DOUGLAS-FIR TUSSOCK MOTH (Hemerocampa pseudotsugata) - OREGON - Three centers of
epidemic defoliation occurred near Antelope Mountain, King Mountain and Gold Hill
on the Malheur National Forest, Defoliation of true firs and Douglas-fir ranged
from light to severe, Surveys underway to determine need for control in 1965,
(Lund) .

PINE TUSSOCK MOTH (Dasychira plagiata) - WISCONSIN - About 75 percent of eggs in
Douglas County on August 12 had hatched. Egg parasitism appears less than in
1963, Browning of tops due to feeding of recently hatched larvae in untreated
trees in Gordon area, (Wis. Ins. Sur.).,

PANDORA MOTH (Coloradia pandora) - OREGON - Adults in flight attracted to lights
in large numbers at Chemult, August 1-7. Eggs laid on shingles, lighted signs
and other places, This flight is 5 miles against the prevailing wind from known
infestation center, (Lund),

AN OLETHREUTID MOTH (Eucosma gloriola) - NEW YORK - Damage to Scotch pine light
at Little Genesee, Allegany County; restricted to lateral shoots on most trees.
(N.Y, Wkly. Rpt., Aug. 17).

RED-HEADED PINE SAWFLY (Neodiprion lecontei) - VERMONT - Abundant and defoliating
pines in plantations in areas of Chittenden and Franklin Counties, (MacCollom,
Aug. 17). MICHIGAN - Larval numbers and damage light to moderate on 5 to 15-
year-old pines near Channing, Dickinson County. (Mattson). WISCONSIN -
Occasional colonies of nearly full-grown larvae on jack pine in Burnett,

Washburn and Douglas Counties, week of August 10, (Wis. Ins, Sur.). MINNESOTA -
Seventy percent of infested trees in east central and northeast show feeding
completed. (Minn. Ins. Rpt.).

PINE TORTOISE SCALE (Toumeyella numismaticum) - NEW YORK - Serious on some red
and Scotch pines in Christmas tree plantings at Little Genesee, Allegany County.
Sooty mold heavy on infested trees, (N.Y. Wkly. Rpt., Aug. 17). WISCONSIN -
Many areas previously infested appear to have been controlled by various
coccinellids this summer, (Minn. Ins. Rpt.).

ELM LEAF BEETLE (Galerucella xanthomelaena) - VERMONT - Severely damaged elm
foliage in many areas of State, (MacCollom, Aug. 17). OHIO - Severe feeding on
elms in Miami County, All stages present. (Lyon). OKLAHOMA - Heavy in Cherokee,
Haskell, Mayes, Dewey and Kingfisher Counties, Light in Beaver County. (Okla,
Coop. Sur.). ARIZONA - Very numerous and damaging trees in Globe area of Gila
County. (Ariz. Coop, Sur.). COLORADO - Damaging elms in Pueblo and Fremont
Counties, (Haines, Svedman). UTAH - Injury continues serious in parts of Kane
County. (Hatch, Knowlton).

SMALLER EUROPEAN ELM BARK BEETLE (Scolytus multistriatus) - NEBRASKA - Collected
from elms in Buffalo County, This_is a new county record, (Bergman) .

BLACK VINE WEEVIL (Brachyrhinus sulcatus) - PENNSYLVANIA - Feeding on landscape
size hosts in King of Prussia, Chester County, August 6. (Cole). Heavy damage
on a block of yew in Luzerne County, August 4, Several dead and dying plants,
(Andreychik) ,

CARPENTERWORM (Prionoxystus robiniae) - COLORADO - Attacking elms in Washington
County, (Travis).

ORANGE-STRIPED OAKWORM (Anisota senatoria) - RHODE ISLAND - No evidence of larvae
in areas of Washington County where found previous several years. (Mathewson).

- 1004 -

GYPSY MOTH (Porthetria dispar) - MICHIGAN - No males found. (Lindy). PENNSYL-
VANIA - Collections as follows: 2 males from 1 trap at Lackawaxen, Pike County,
July 27; 1 male in trap and 3 egg masses at Kresgeville, Monroe County, August 3;
and 1 male in trap in Pike County, August 17. (Campbell). MASSACHUSETTS - Moths
still taken at Sagamore and Wareham. (Tomlinson).

A GALL WASP (Neuroterus saltatorius) - CALIFORNIA - Heavy on oak in several
locations in Sacramento, Sacramento County, and in Sanger, Fresno County.
Unusually heavy in yards. (Cal. Coop. Rpt.).

WALKINGSTICK (Diapheromera femorata) - WISCONSIN - Reported plentiful in Wiscon-
sin Rapids area. Few specimens noted received from widely scattered areas from
Rock to Douglas Counties. (Wis. Ins. Sur.).

WESTERN FLOWER THRIPS (Frankliniella occidentalis) - MARYLAND - Collected from
chrysanthemums at La Vale, Allegany County, August 11, 1964, by C. W. McComb,

This is a new State record and apparently a new record for eastern United States,
Det, by K> O'Neill. WU. Md. vent. Dept.)

A WALNUT HUSK FLY (Rhagoletis suavis) - DELAWARE - Adults very abundant on English
walnut trees, Freshly laid eggs observed in husks, Aug, 19, 1964, Collected by
P, P, Burbutis and L. P. Kelsey in Felton, Kent County. This is a new State
record, (Burbutis, Crossan).

BAGWORM (Thyridopteryx ephemeraeformis) - MARYLAND —- Heavy on arborvitae at
Corsica Neck, Queen Annes County. (U. Md., Ent. Dept.). OHIO - Several shrubs
infested in Columbus, Franklin County. (Jones). NEBRASKA - Moderate to heavy
and quite widespread on southern and eastern evergreens, (Bergman). OKLAHOMA -
Moderate to heavy on evergreens in.Mayes and Cherokee Counties. Light in Texas
County. (Okla. Coop. Sur.).

TOBACCO BUDWORM (Heliothis virescens) - CALIFORNIA - Medium larval populations
on geraniums in Chico, Butte County. (Cal. Coop. Rpt.).

MIMOSA WEBWORM (Homadaula albizziae) - MARYLAND - Moderate to heavy on honey-
locust and mimosa in all sections, (U. Md., Ent. Dept.). OHIO - Populations
quite conspicuous on honeylocusts in southwest. Few small trees had total leaf
browning. (Lyon).

LILAC BORER (Podosesia syringae syringae) - NORTH DAKOTA - Moderate infestation
in nursery at Valley City. (Frye, Gage).

A LEAF ROLLER (Anchylopera spireaefolina) - NORTH DAKOTA - Heavy leaf rolling on
spirea in most southeastern areas, Frye, Gage).

FALL WEBWORM (Hyphantria cunea) - MARYLAND - Conspicuous webs on several hosts
in central areas. (U. Md., Ent. Dept.). NORTH DAKOTA - Larvae abundant on
walnut, apple and crabapple in Hankinson area, (Bergman).

CATALPA SPHINX (Ceratomia catalpae) - OHIO - Severe feeding on catalpa trees at
several locations throughout southwest, Larvae ready to pupate. (Lyon).

GARDEN WEBWORM (Loxostege similalis) - GEORGIA - Heavy damage to amaranth on
Capitol grounds. Johnson) . 2

COCCIDS - PENNSYLVANIA - Fiorinia externa infesting all hemlocks in a nursery in
King of Prussia, Chester County, August 6. (Cole). MARYLAND - Toumeyella
liriodendri (tuliptree scale) heavy on tuliptrees on properties in Frederick and
Prince Georges Counties. (U. Md., Ent, Dept.). GEORGIA - Icerya purchasi

light to moderate on several plants in a nursery in Berrien County. (Ratcliffe).
FLORIDA - In Hillsborough County: Icerya purchasi (cottony-cushion scale)
moderate on stem of Pittosporum tobira at Limona, August 12 (Simmons); Coccus -
viridis (green scale) severe on Ixora coccinea, and Pinnaspis strachani severe

- 1005 -

on hibiscus at Plant City (Custead, Aug. 13). Pseudaonidia clavigera light on
Camellia sp. at Tampa, Hillsborough County. This is new locality in county.
(Hale, Miller, Aug. 14). INDIANA - Infestations of Fiorinia theae (tea scale)
on rhododendron in La Porte and Elkhart Counties, Favinger, Clark).
CALIFORNIA - Pseudococcus aurilanatus at locally on araucaria trees in park

in Encinitas, San Diego. (Cal. Coop. Rpt.)

APHIDS - DELAWARE - Macrosiphoniella sanborni (chrysanthemum aphid) present to
fairly common on chrysanthemums in most areas of State, (Burbutis, Crossan).
RHODE ISLAND - Undetermined species on many willows in Middletown, Newport
County. (Sorensen, Mathewson).

LACE BUGS - NEW YORK - Heavy on azaleas in Nassau County and damaging andromeda
in Suffolk County. (N.Y. Wkly. Rpt., Aug. 17). NEW JERSEY - Heavy on many
ornamental plants, shrubs and shade trees, (Ins.-Dis. Newsltr.). OHIO - Heavy
populations feeding on underside of hackberry leaves in Fairfield, Butler County.
(Schenck, Aug. 10).

INSECTS AFFECTING MAN AND ANIMALS

FACE FLY (Musca autumnalis) - MARYLAND - Generally light, 0-12 per head, on
dairy cattle in Frederick County. (U. Md., Ent. Dept.). OHIO - Population
incr’ ‘ses on beef and dairy animals in Highland County. Counts of 15 flies
per dairy animal and 25 per beef animal in several herds, Pinkeye common.
(Wolfer), INDIANA - Averaged 3 per face in southwest, 4 in south central and
2.5 in southeast. (Saugstad). ILLINOIS - In western area, 5-10 adults per
animal on pastured cattle, (Ill. Ins. Rpt.). WISCONSIN - Continues a problem
in Ashland County and less of a problem in Bayfield County than previous week.
Affecting cattle in Langlade County, (Wis. Ins. Sur.). NORTH DAKOTA - Averaged
less than 10 per cow and less than 5 per calf in sandhill area of southeast,
(Noetzel).

HOUSE FLY (Musca domestica) - NORTH DAKOTA - Populations from farm to farm quite
variable, Highest counts less than 10 per square yard. A considerable number

on range cattle in sandhill area of southeast. (Notezel). COLORADO - Consider-
able irritation to livestock in Fremont, Teller, Park, Custer and Pueblo Counties,
(Gilmore, Jenkins).

A FLY (Musca sp.) - NEW MEXICO - Very annoying in and around homes at Albuquerque,
Bernalillo County, and in Las Cruces, Dona Ana County, (N.M. Coop. Rpt.).

HORN FLY (Haematobia irritans) - WYOMING - Continues to annoy livestock in Goshen
County. Estimated 100-150 adults per animal. (Marks). UTAH - Moderately
humerous on Wasatch and Summit County herds. (Knowlton). COLORADO - Consider-
able irritation to livestock in Fremont, Teller, Park, Custer and Pueblo
Counties, (Gilmore, Jenkins). OKLAHOMA - Populations moderate in Osage, Payne,
Mayes and Haskell Counties, (Okla. Coop. Sur.). NEBRASKA - Counts of 50-750

per animal in Furnas, Chase, Hayes, Hitchcock and Red Willow Counties. (Bergman).
NORTH DAKOTA - Counts of less than 100 per cow in untreated herds and less than

5 in treated herds in sandhill area of southeast. (Noetzel). GEORGIA - Counts
of 100-1,000 (average of 600 per cow) in a herd in Chatham County. (Vanderford) .
MARYLAND - Ranged 8-44 per head on dairy cattle in Frederick County, (U. Md.,
Ent, Dept.). INDIANA - Counts of 75 per head on cattle in southwest, 50 in

south central and southeast. (Saugstad). ILLINOIS - In western area, 0-20

flies per animal on pastured cattle, (I11. Ins. Rpt.).

TABANIDS - NORTH DAKOTA - Counts of less than 1 per animal of Tabanus lineola

in Sandhill area of southeast, High counts in 1965 appear remote at this time.
(Noetzel). OKLAHOMA - Tabanus spp. heavy on livestock in Choctaw County, (Okla.
Coop. Sur.). COLORADO - Tabanus sp. and Chrysops sp. caused considerable irri-
tation to livestock in Fremont, Teller, Park, Custer and Pueblo Counties.
(Gilmore, Jenkins). UTAH - Undetermined species annoying horses and cattle in
areas of Utah, Wasatch and Summit Counties. (Knowlton).

- 1006 -

STABLE FLY (Stomoxys calcitrans) - ILLINOIS - In western area, counts of 0-4 per
animal on pastured cattle. (Ill. Ins. Rpt.). NORTH DAKOTA - Counts of 10-30 in
sandhill area of southeast. Highest counts from dairy animals and stock kept
near buildings, (Noetzel). COLORADO - Considerable irritation to livestock in
Fremont, Teller, Park, Custer and Pueblo Counties, (Gilmore, Jenkins).

MARYLAND - Counts of 3-50 per head on dairy cattle in Frederick County. (U. Md.,
Ent, Dept.). WISCONSIN - Reported as number one fly problem, (Wis. Ins. Sur.).

MOSQUITOES - COLORADO - Considerable irritation to livestock caused by Culex sp.,
Aedes sp. and Anopheles sp. in Fremont, Teller, Park, Custer and Pueblo Counties,
(Gilmore, Jenkins), UTAH - Undetermined species annoying in areas of Millard,
Summit and Wasatch Counties. (Knowlton). MINNESOTA - Metropolitan Mosquito
Control District's collections as follows: 541 larval samples of which Aedes
vexans found in 329 and Culex tarsalis in 43; 701 females taken in light traps
of which 298 were A. vexans and 127 C, tarsalis; in evening and daytime biting
collections, A. vexans waS dominant. (Minn. Ins. Rpt.).

SHEEP KED (Melophagus ovinus) - UTAH - Moderately numerous in farm flocks at
Heber, Wasatch County. (Knowlton).

LONE STAR TICK (Amblyomma americanum) - OKLAHOMA - Heavy on cattle in Haskell,
Cherokee and Choctaw Counties. Okla. Coop. Sur.).

BLACK WIDOW SPIDER (Latrodectus mactans) - UTAH — Reports from homes in Weber
and Salt Lake Counties. (Knowlton) .

WASPS - MARYLAND - Annoying to several homeowners in Montgomery and Prince
Georges Counties. (U. Md., Ent. Dept.). NEW JERSEY - Of concern to homeowners.
(Ins.-Dis. Newsltr.).

HOUSEHOLD AND STRUCTURAL INSECTS

EUROPEAN EARWIG (Forficula auricularia) - MAINE - Continued troublesome to
homeowners in Portland area and generally throughout coastal region of Cumberland
County. Light around homes in Rockland area, Knox County; annoyance level low,
(Boulanger, Aug. 15). RHODE ISLAND - Still common statewide, but numbers
decreasing. (Sorensen, Mathewson). UTAH - Abundant and generally annoying in
Heber area of Wasatch County, (Knowlton).

LARDER BEETLE (Dermestes lardarius) - MICHIGAN - Household infestations in
Gratiot and Ingham Counties, (Berlien).

STRAWBERRY ROOT WEEVIL (Brachyrhinus ovatus) - NORTH DAKOTA —- Adults abundant
in homes in eastern areas. (Frye, Gage).

A SOLPUGID (Eremobates tuberculatus) - CALIFORNIA - Heavy adult populations in

a residence in Sacramento, Sacramento County. These have been more prevalent
this season than for several years, (Cal, Coop. Rpt.) <

STORED-PRODUCT INSECTS

CONFUSED FLOUR BEETLE (Tribolium confusum) - RHODE ISLAND - Infestation in grain

in box car in Woonsocket, Providence County. Purchaser refused to accept.
(Mathewson) ,

BENEFICIAL INSECTS

CICADA KILLER (Sphecius speciosus) - OKLAHOMA - Numerous in Cimarron and Texas
Counties, (Okla. Coop. Sur.).

— lOO —

A PELECINID PARASITE (Pelecinus polyturator) - WISCONSIN - Eight adults of this
hymenopterous parasite of scarabaeid beetles collected along a 300 foot stretch
of pine windbreak near Merrill, Lincoln County, August 13. All beetles were
within 4 feet of ground, (Wis. Ins. Sur.).

LADY BEETLES -— OKLAHOMA - Hippodamia convergens (convergent lady beetle) numerous
in sorghum in panhandle counties. Light in alfalfa in Beaver, Harper, Blaine and
Kingfisher Counties. (Okla. Coop. Sur.). WYOMING - Adults and larvae of several
species averaged 78 per 100 sweeps in alfalfa, 63 in sugar beets, 46 in beans and
5-8 per plant in corn fields of Goshen County. (Marks).

DAMSEL BUGS (Nabis spp.) - WYOMING - Adults averaged 56 per 100 sweeps in alfalfa,
62 in sugar beets and 50 in bean fields of Goshen County. (Marks).

MISCELLANEOUS INSECTS

EUROPEAN CHAFER (Amphimallon majalis) - PENNSYLVANIA - Survey in Philadelphia,
Harrisburg and Pittsburgh negative. In Erie County, 76 chafers collected by
nets and traps at numerous sites over 4,500 acres. This extension of last
year's infestation is 10 miles east of Erie in a band, 1-3 miles wide, along the
New York Central Railroad. (Campbell).

CORRECTIONS

CEIR 14(16) :346 - CATALPA SPHINX (Ceratoma catalpae) should read (Ceratomia
catalpae). i

CEIR 14(34):963 - SOUTHWESTERN CORN BORER (Zeadiatraea grandiosella) - MISSOURI -
Should read: '"Second-generation moth population increasing in southeastern area.
(Harrendorf, Jones) ."'

CEIR 14(34) :974 - BOLL WEEVIL (Anthonomus grandis) - MISSOURI - Should read:
"First adults of season taken in 12 fields in Dunklin County. (Harrendorf,
Jones) ."

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- 1010 -

STATUS OF THE SCREW-WORM (Cochliomyia hominivorax) IN THE SOUTHWEST

During the period August 16-22, no screw-worm infestations were reported in the
Southwestern Screw-worm Eradication Area. Six cases were reported in ARIZONA
counties: Cochise (3), Santa Cruz (2) and Graham (1). The Republic of Mexico
reported 61 cases from following States: Sonora (20), Chihuahua (22), Durango
(9), Tamaulipas (8), San Luis Potosi (1) and Puebla (1). A total of 103,328,650
sterile screw-worm flies was released: 22,235,450 in Texas; 1,000,000 in New
Mexico; 7,720,000 in Arizona; and 72,373,200 in Mexico. The following is a
comparison of specimens reported during corresponding weeks in 1962 and 1963.

Ratio of Cases

Positive Cases Negative Cases* Positive to Negative**
Year Current Cumulative Current Cumulative Current Cuculative
1962 740 33,188 30 2,227 2,466.6:100 1,490,2:100
1963 58 2,447 81 4,637 (Al O21 52.7:100
1964 (0) 107 66 4,279 0.0:100 2,5:100

* The number of cases not screw-worm is an index of the efficiency of the
reporting system,

** A comparison of the ratios of screw-worm cases with cases that are not screw-
worm is an index of the change in number of screw-worm cases,

(Anim. Dis. Erad,. Div.).

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Figures - Number of cases reported
in infested counties for

period 8/16/64 to 8/22/64

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National Agricultural Library
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11-27-63 Plant Industry Statio
IPS Beltsville, Md. 20705/