Historic, archived document

Do not assume content reflects current
scientific knowledge, policies, or practices.

VOL. 24 NO. 34

US. I ■ ' r

Mil A

August 23, 1974

Insect

rt

Issued by

PLANT PROTECTION AND QUARANTINE PROGRAMS
ANIMAL AND PLANT HEALTH INSPECTION SERVICE
U S DEPARTMENT OF AGRICULTURE

ANIMAL AND PLANT HEALTH INSPECTION SERVICE
PLANT PROTECTION AND QUARANTINE PROGRAMS
PEST SURVEY AND TECHNICAL SUPPORT STAFF

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 Service serves as
a clearing house and does notassume responsibility for ac-
curacy of the material.

All reports and inquiries pertaining to this release,
including the mailing list, should be sent to:

CEIR

Pest Survey and Technical Support Staff
Plant Protection and Quarantine Programs
Animal and Plant Health Inspection Service
United States Department of Agriculture
Federal Center Building
Hyattsville, Maryland 20782

Volume 24

August 23, 1974

Number 34

COOPERATIVE ECONOMIC INSECT REPORT

HIGHLIGHTS

Current Conditions

CORN LEAF APHID may be problem on corn in northern Illinois,
continued heavy on corn in central and west-central Wisconsin.
Some buildups of GREENBUG at economic levels on sorghum in
north-central and northeast Kansas, near economic levels in
southwest Nebraska. POTATO LEAFHOPPER at economic levels in
Ohio and Indiana alfalfa, (pp. 668-669).

EUROPEAN CORN BORER moth flights increased in New York, Wisconsin,
and Kansas, declined significantly in Maryland. BANKS GRASS MITE
continued to increase on corn in Arkansas Valley of Colorado,
(pp. 669-671, 677).

BOLL WEEVIL infestations increased in cotton in some areas,
BOLLWORMS increased in cotton in scattered cotton-growing areas,
infestations below normal in Arkansas, (pp. 673-676).

BLACK PECAN APHID and YELLOW PECAN APHIDS increased on pecans in
south-central Texas, (pp. 678, 679).

Detect ion

New State records include CALIFORNIA PEARSLUG in Idaho (p. 678),
a TENEBRIONID BEETLE in Maryland (p. 682), and 7 APHIDS in
Vermont (p. 683).

For new county records see page 682.

Reports in this issue are for week ending August 16 unless
otherwise indicated.

- 665 -

CONTENTS

Special Insects of Regional Significance.
Insects Affecting

,667

Corn, Sorghum, Sugarcane ... 669
Turf, Pastures, Rangeland . . 671

Forage Legumes 672

Soybeans 672

Peanuts 673

Cotton 673

Tobacco 676

Miscellaneous Field Crops.. 677

General Vegetables 677

Deciduous Fruits and Nuts... 678

Small Fruits 679

Ornamentals 679

Forest and Shade Trees 679

Man and Animals 680

Households and Structures ... 681

Hawaii Insect Report 677

Federal and State Plant Protection Programs 681

Detection 683

Corrections 683

Light Trap Collections 684

WEATHER OF THE WEEK ENDING AUGUST 19

Reprinted from Weekly Weather and Crop Bulletin supplied by
Environmental Data Service, NOAA.

PRECIPITATION : Showers were reported throughout the Midwest and
Northeastern United States, with locally heavy amounts. Rains
averaging over 2 inches were recorded in the Oklahoma and Lincoln,
Nebraska, area; Milwaukee, Wisconsin; New York, New York' and
Allentown, Pennsylvania. In the South, widespread good rains of
over 2 inches fell across Louisiana, Mississippi, and Alabama,
while most of Texas remained dry; Del Rio got 2.44 inches causing
flooding. Monday, heavy rains fell as thunderstorms moved through
the Mississippi and Tennessee Valleys. Over 2 inches of rain fell
in less than one hour near St. Louis, Missouri, while over 1 inch
was measured at Memphis, Tennessee. Scattered thunderstorms were
active again Tuesday in the Great Plains, the Mississippi Valley,
and from the Great Lakes to the gulf coast. Hail up to 2.50 inches
pounded parts of southeast Nebraska while 2 inches of rain fell
in 45 minutes south of Glenville, Nebraska. Wednesday, a surge of
unseasonably cool air from Canada, combined with rain, spread
across the northern Plains. Ahead of the front, winds up to 50
m.p.h. lashed Chadron, Nebraska. Early Thursday, heavy thunder-
storms occurred in the Dakotas. At least eight farm graineries
were destroyed and several farm buildings damaged by tornadoes
near Jamestown, North Dakota. Scattered thunderstorms persisted
from New Mexico and western Texas northeastward into the upper
Great Lakes. Friday, thunderstorms occurred from the Mississippi
Valley to the central and south Atlantic coast and in the western
Plains. Locally heavy storms dumped 3.81 inches of rain on
Jacksonville, Florida. Nearly 3 inches were also reported at
Daytona Beach, Florida, and 1.75 inches at Charleston, South
Carolina. Many reports of damaging winds gusting up to 80 m.p.h.
and golf ball-size hail were received from southeast Nebraska and
northeast Kansas on Saturday. Over 2.25 inches of rain fell in
20 minutes at Seward, Nebraska, when thunderstorms passed through
that area.

Weather of the week continued on page 686.

- 666 -

SPECIAL INSECTS OF REGIONAL SIGNIFICANCE

ARMYWORM (Pseudaletia unipuncta) - CALIFORNIA - Larvae damaged
Sudan grass at Han ford , Kings County. (Cal. Coop. Rpt . ) .
NEBRASKA - Scattered larval populations noted in 38 cornfields
in Hall, Buffalo, Adams, and Kearney Counties. Heaviest infestation
noted in one field of late-planted Kearney County corn, averaged
2 larvae per 10 plants. (Raun) . ALABAMA - Damaged field of forage
sorghum in Winston County. (Murphy). SOUTH CAROLINA - Larvae
collected from Bermuda grass and millet in Darlington County
August 12, 1974, by J. Loudermilk. Determined by C.A. Thomas. This
is a new county record. Occurrence of larvae this late in season
unusual. (McCaskill) .

BEET LEAFHOPPER (Circulif er tenellus) - CALIFORNIA - About 25 per-
cent of all sugar beet fields in San Joaquin, Sacramento, Sutter,
Butte, Glenn, Colusa, Yolo, and Solano Counties surveyed. All
pepper fields seen and one of every two tomato fields checked. No
curly top found in tomatoes or peppers. For most part, sugar beets
showed no curly top; less than one percent noted in few fields. In
Grimes area, Colusa County, one field 8.5 percent infected and
with 34 leaf hoppers per 100 sweeps. More recently planted beets
in same area may be infected. Leafhoppers averaged 6 adults and 9
nymphs per sweep on Russian thistle checked in Belridge and Black-
wells Corner area of Kern County. More thistle acreage appearing as
plants too small to detect in June have grown above dry annuals.
Bean field checked in Shandon area, San Luis Obispo County, showed
no curly top. Five of 800 tomato plants (24 inches tall) checked
were infected; younger field of 6 to 12-inch plants had one
infected of 600 plants checked. Curly top ranged 1-4 percent in 4
sugar beet fields checked in area. (Cal. Coop. Rpt.).

CORN EARWORM (Heliothis zea) - MARYLAND - Moth catches in black-
light traps decreased to relatively low levels during period
August 8-11 due to cool nights. Egg counts on sweet corn silks
also light. (U. Md., Ent. Dept.). VIRGINIA - No infestations
detected in soybeans to date. Most larvae have left corn to
pupate or have emerged. (Allen). GEORGIA - Ranged light to moderate
across peanut belt. (French). Adults in Spalding County blacklight
trap increased. (Tippins) . ALABAMA - This pest and Nezara viridula
(southern green stink bug) heavy and damaged corn in many Mobi le
County fields. (Vickery) . H. zea larvae light to medium and fed on
soybean pods throughout several thousand acres in Crenshaw County.
Controls not yet justified. (Smith).

ARKANSAS - H. zea larvae appeared in small percentage of fields of
early and medium planted soybeans. In general, scouting of soybeans
will increase next 7 days. Concentrated scouting will continue into
September in order to keep abreast of situation. (Boyer).
OKLAHOMA - Averaged 10 per row foot in peanuts checked in Marshall
County; light to moderate in Hughes, Washita, and Caddo Counties.
Averaged less than one per 10 row feet in soybeans in McCurtain
County. (Okla. Coop. Sur . ) . NEW MEXICO - First and second instars
recovered from whorls in milo near Artesia, Eddy County; up to 2
larvae per 5 plants observed. (N.M. Coop. Rpt.). UTAH - None
observed to date in small cornfield at Logan, Cache County. Corn
harvested for three weeks. (Burtenshaw) . WASHINGTON - Infestation
noted at 11 percent on experimental corn trials near Othello,
Adams County. (Antonelli) .

- 667 -

CORN LEAF APHID (Rhopalosiphum ma id is) - KANSAS - Generally light
in sorghum over most of State except for moderate in few fields
in western area. (Bell). MISSOURI - Light to moderate on sorghum
throughout southwest, west-central, north-central, and northeast
areas. In west-central area colonies found on 5-39 percent of
plants. (Munson). ILLINOIS - May be problem on late corn in
northern two-thirds of State. About 10 percent of fields not
tasseled and populations ranged 0-500+ (average 200+) per plant.
Severe aphid problems encountered under similar circumstances in
1973. (111. Ins. Rpt.). IOWA - Light to moderate in 4 Cherokee
County cornfields. (Iowa Ins. Sur . ) . WISCONSIN - Continued heavy
on corn in central counties and some west-central counties.
Winged forms developed and aphids moved from infested cornfields;
often found in heavy numbers in about every crop. Counts
increased greatly in some late sweet corn. Predators abundant in
corn where R. maidis heavy. (Wis. Ins. Sur.). NORTH DAKOTA -
Ranged up to 300 per plant on Sudan grass in Oliver County.
(Brandvik) .

GREENBUG (Schizaphis graminum) - TEXAS - Heavy parasitism of
greenbug noted in Pecos and Reeves Counties. Populations on
sorghum and corn declining in San Angelo area. Light in
Wilbarger County. Heavy parasitism also noted over most of High
Plains area. Greenbug heavy in some fields in Panhandle area.
(Neeb et al.). OKLAHOMA - Heavy in sorghum checked in Coal County;
bottom 2-4 leaves dead on most plants. Ranged light to moderate
in Washita and Caddo Counties with few fields ranging up to 500
per leaf. Heavy parasitism continued. (Okla . Coop. Sur.).

KANSAS - Some economic buildups of greenbug occurred in north-
central district from Smith to Washington County and in most
counties of northeast district. Though no economic infestations
noted, some significant buildups noted in counties surveyed in
east-central district including Shawnee, Csage, Morris, and
Geary Counties. Some threatening infestations remained in sorghum
in counties involved in pest management program including Meade,
Stevens, and Haskell in southwest district where parasitism
generally light. Greenbug generally declined in west-central and
northwest districts principally as result of parasitism by
Lysiphlebus testaceipes (a braconid wasp) and to lesser degree due
to predation by lady beetles. Parasites always present but
generally not greatly slowing greenbug buildups in fields
surveyed in northeast and east-central districts, except one case
noted in southern Geary County where moderate infestation
eliminated by wasps. Greenbug infestations in sorghum in northeast
and east-central districts usually very spotty in fields; some
plants or groups of plants heavily infested whereas others nearby
in same field with only light to trace infestations. (Bell).

MISSOURI - Greenbug light to moderate on sorghum in west-central
area. Ranged 5-9,000 aphids per plant. (Emerson). NEBRASKA - Ranged
0-8,500 in 250 Clay County sorghum fields. Parasitism by
Lysiphlebus sp . (a braconid wasp) increased but still light;
increased to 8.1 percent from average of 3 percent previous
period. (Gary, Keith) . _S. graminum ranged 0-6,000 (average 1,100)
per plant in 3 Antelope- County sorghum fields. (Koinzan) . All 3
fields checked in Adams County clean but some or all may have had
previous treatment. (Rami) . Populations at or near economic levels
in most untreated sorghum in Lincoln County. (Campbell).
CALIFORNIA - Infestations on milo required treatment in
Sacramento and Yolo Counties. (Cal. Coop. Rpt.).

- 668 -

SPOTTED ALFALFA APHID (Therioaphis maculata) - UTAH - Seriously
infested and generally damaged 10,000 acres of alfalfa in general
Delta Deseret, and Sutherland area and nearby areas of Millard
County. (Chapman). COLORADO - Found in all alfalfa checked in
Pueblo Crowley, and other counties; ranged 100-600 per 100
sweeps. (Schweissing) . NEW MEXICO - Light populations appeared
in alfalfa near Tucumcari, Quay County. Counts of 10-20 per 25
sweeps common in area. (N.M. Coop. Rpt.). OKLAHOMA - Averaged 165
per 10 sweeps in alfalfa in Logan County and 80 per 10 sweeps in
Oklahoma County. (Okla. Coop. Sur . ) . KANSAS - Averaged 50 per 10
sweeps in blooming alfalfa in Osage County. (Bell).

POTATO LEAFHOPPER (Empoasca fabae) - NEW YORK - Stunted plants
and yellow foliage apparent in most alfalfa fields throughout
Cattaraugus and Chautauqua Counties. (Sliwa). OHIO - Adults and
immatures found economically significant in 8 northwest area
alfalfa fields. Heaviest infestations found in third-cutting
alfalfa in 3 counties as follows (counts per sweep) : Putnam
4-5.5, Henry 3-4, and Allen 2-3.5. (Fox). INDIANA - Economic,
ranged up to 12 per sweep, in 12 of 28 alfalfa fields checked in
northern districts. In southern districts, no counts above one
per sweep encounted in 29 alfalfa fields checked. (Edwards).
WISCONSIN - Continued light, 1-2 per sweep, on commercial beans
and potatoes in central and west-central districts. Averaged
about 3 per sweep generally in forage crops, but exceeded 25
per sweep in few fields. Ranged 1-2 per sweep in soybeans checked
over State; nymphs present in most fields. (Wis. Ins. Sur.).
MISSOURI - Light in 2 soybean fields in west-central area.
Ranged 0-6 per sweep. (Munson) .

TOBACCO BUDWORM (Heliothis virescens) - MARYLAND - Second -brood
larval populations much ITghter on tobacco than in 1973. (U. Md . ,
Ent. Dept.). KENTUCKY - Very light on tobacco in central areas,
averaged less than one per 100 plants. (Barnett) .

TOBACCO HORNWORMS (Manduca spp.) - KENTUCKY - In central areas,
larval populations light on tobacco, averaged 2.1 per 100 plants.
(Barnett) .

CORN, SORGHUM, SUGARCANE

EUROPEAN CORN BORER (Ostrinia nubilalis) - VERMONT - Second-brood
moth flight underway. Late corn should be treated if larvae
problem during whorl stage. (MacCollom) . NEW YORK - Moth flights
increased in Geneva area, Ontario County; egg laying observed on
younger stands of corn. Sweet corn will be susceptible to attack
next few weeks. (Davis). DELAWARE - Moths averaged 10 per night
during period August 7-13 in blacklight trap collections in wester
Sussex County; numbers reduced in most areas. (Burbutis) .
MARYLAND - Moth catches declined significantly during period
August 8-11, but most sweet corn fields still need controls for
young borers in silks. (U. Md . , Ent. Dept.). KENTUCKY - Continued
to damage corn. About 45 percent of corn in dough stage, with 15-2
percent dented or beyond. (Barnett).

- 669 -

MICHIGAN - European corn borer populations increased; growers of
susceptible crops should continue control programs and regular
schedule. (Cress). INDIANA - Occasional pupae observed in corn in
southwest district. (Meyer). WISCONSIN - Moths increased greatly
in blacklight traps; 148 taken in one trap at Hancock, Waushara
County, August 12. Egg masses evident in corn as far north as
Portage County but not abundant in any field checked. Situation
expected to change next 7 days. Pupae more evident; comprise about
50 percent of population in western counties as far north as St.
Croix and Dunn Counties. Abundant in central counties in few
potato fields as well as corn. Many pupae and pupal cases noted
in small corn in northern Columbia County. In Green County, small
larvae fed in 10-30 percent of plants in field of late sweet
corn. In commercial sweet corn areas, much egg laying will occur
on late fields; up to 25-60 percent of ears infested with small
larvae not uncommon late in season. Very few late fields of sweet
corn available in central area for egg laying, but bean and
potato fields abundant. (Wis. Ins. Sur . ) .

NEBRASKA - Second-brood European corn borer populations mostly
light and scattered with heaviest populations in late-planted
fields. Ranged 2-4 first-instar larvae and one egg mass per 10
plants in one late-planted Kearney County cornfield. (Raun) .
KANSAS - First-generation moth flights continued light at most
stations; however, recent heavy flight indicated at Rossville,
Shawnee County. (Bell).

FALL ARMYWORM (Spodoptera f rugiperda) - MARYLAND - Larval
infestations ranged 5-40 percent on late corn in Montgomery and -
Frederick Counties. (U. Md . , Ent . Dept.). KANSAS - Few light
infestations reported in whorls of late sorghum in southeast and
southwest districts. (Bell). MISSISSIPPI - Infestation still 100
percent on 25 acres of corn in Pearl River County. Corn meant for
silage, expected to be low grade. (Robinson).

SORGHUM WEBWORM (Celama sorghiella) - OKLAHOMA - Ranged up to 4
per head in sorghum checked in Coal County. This is first report
of season. (Okla. Coop. Sur.).

CORN ROOTWORMS (Diabrotica spp . ) - KANSAS - Instances of serious
root damage related to insecticide failures in corn still
reported from northwest district. Adult infestations generally
declined over most of State. Most corn past stage where beetles
could cause damage. (Bell). WISCONSIN - Adult emergence about
complete in southern and western counties; few pupae and new
adults still in soil. Adult counts variable among fields in
southern half of State. (Wis. Ins. Sur.).

WESTERN CORN ROOTWORM (Diabrotica virgifera) - OHIO - Intensive
adult survey conducted in Mercer, Allen , Lucas, Putnam, Hancock,
Wood, Williams, Henry, and Paulding Counties, in northwest area.
Adults collected in Williams County August 12, 1974, by Gevas and
Reinheimer; Henry County August 13, 1974, by Reinheimer and
Gevas; and in Paulding County August 14, 1974, by P.R. Fox. These
are new county records. This pest now known to occur in 5 counties
in State. (Fox). NEBRASKA - Declining in all areas of State.
Averaged 0.67 per plant in 272 Clay County cornfields. Ranged 0-6
per plant in 38 fields surveyed in Hall, Buffalo, Adams, Kearney
Counties. Averaged less than one per plant in 7 cornfields on sandy

- 670 -

soil in Antelope County and 3 per plant in 8 fields on heavier
soils in same county. (Koinzan) . UTAH - Conspicuous populations
of Diabrotica virgif era noted on silking corn in Cache, Weber,
Box Elder, and Salt Lake Counties. (Knowlton, Roberts). Most
Cache County corn treated. (Burtenshaw, Roberts).

NORTHERN CORN ROOTWORM (Diabrotica longicornis) - OHIO - Adult
migration from corn to soybeans, forage legumes, and roadside
grasses increased as corn silks dried. Adults averaged 0.4, 0.7,
and 1.1 per ear in Licking, Paulding, and Putnam Counties,
respectively. (Fox). Heaviest infestation to date noted in
Mercer County field with 10-15 adults per ear. (Goleman, Lyon).
Beetles averaged 5 per ear in 20-acre Delaware County cornfield.
(Irvin). MARYLAND - Adults collected in blacklight trap at
Cambridge, Dorchester County, July 22, 1974, by R.L. Davis.
Determined by R.E. White. This is a new county record. (U. Md . ,
Ent . Dept . ) .

SOUTHERN CORN ROOTWORM (Diabrotica undecimpunctata howardi) -
ALABAMA - Larvae destroyed 100 acres of 4 to 8-inch grain sorghum
for silage on Perry County dairy farm. Area to be treated and
replanted. (Hairston, Brady).

SORGHUM MIDGE (Contarinia sorghicola) - ARKANSAS - Survey
negative in late blooming heads of sorghum near Fayetteville ,
Washington County. Treatments recommended in some fields of
blooming sorghum in Clay County. (Boyer) . MISSISSIPPI - Averaged
2 per blooming sorghum head in Noxubee and Lowndes Counties.
(Robinson ) .

BANKS GRASS MITE (Oligonychus pratensis) - COLORADO - Continued
to increase on corn in Arkansas Valley with untreated fields
showing leaf loss and up to twelth and fourteenth leaves severely
damaged. Light in many sorghum fields in same area with light
damage. ( Schweissing ) . TEXAS - Decreased activity reported on
grain sorghum in San Angelo and Trans-Pecos areas. Heavy infesta-
tions reported in irrigated grain sorghum fields in Knox County.
Populations reported controlled throughout Panhandle area by
cool, damp weather. (Neeb et al.) . NEW MEXICO - Killed corn in
San Juan County. Substantial populations on few remaining corn
plants in Eddy and Chaves Counties not moved to adjoining milo
to date. (N.M. Coop. Rpt.).

TURF, PASTURES, RANGE LAND

RANGE CATERPILLAR (Hemileuca oliviae) - NEW MEXICO - Larvae
ranged 8-36 per square yard on about 10,000 acres of range in
northeastern Lincoln County, 16 miles west of U.S. Highway 285
and 0.6 mile north of State Highway 42. Grass in excellent
condition in area, little damage expected. (N.M. Coop. Rpt.).

TWOLINED SPITTLEBUG (Prosapia bicincta) - FLORIDA - Adults
abundant and causing concern to owner of Pangola grass pasture
at Ruskin, Hillsborough County. (Fla. Coop. Sur.). ALABAMA -
Infestations lighter than usual this season. Adults light in
grass lawns in Dale and Lee Counties. (Stephenson et al.).

GRASSHOPPERS - KENTUCKY - Adults and nymphs of various species
averaged 130 per 100 sweeps in roadside grasses, mostly fescue,
in Woodford County. (Barnett).

- 671 -

FORAGE LEGUMES

GUAR MIDGE (Cecidomyia texana) - TEXAS - Heavy larval infestations
reported from guar fields in Hardeman, Haskell, and Knox Counties.
Midge populations generally reduced by moisture either from rain
or sprinkler irrigation. (Boring).

ALFALFA CATERPILLAR (Colias eurytheme) - COLORADO - Increased in
alfalfa in Arkansas Valley ; larvae ranged up to 600 per 100
sweeps in some fields. ( Schweissing ) .

GARDEN WEBWORM (Loxostege rantalis) - NEW MEXICO - One terminal
per 10 plants tied off in alfalfa near Hagerman, Chaves County.
Recent rains may retard further cutting of alfalfa and substantial
damage may result. (N.M. Coop. Rpt.).

GREEN CLOVERWORM (Plathypena scabra) - OKLAHOMA - Ranged 4-6 per
10 sweeps in alfalfa checked in Logan and Oklahoma Counties.
(Okla. Coop. Sur.).

BLACK BLISTER BEETLE (Epicauta pennsy lvanica ) - NORTH DAKOTA -
Ranged up to 200 per 100 sweeps on alfalfa in Oliver County.
Averaged 500 per 100 sweeps of roadside kochia in Golden Valley
County. (Brandvik) .

ALFALFA WEEVIL (Hypera postica) - KENTUCKY - Eggs averaged 10.3
per square foot at one location in Fayette County. Visual damage
by third and fourth instars evident. (Barnett, Parr).

THREECORNERED ALFALFA HOPPER (Spissistilus festinus) - OKLAHOMA -
Ranged 6-10 per 10 sweeps in alfalfa checke3 in Logan and
Oklahoma Counties. (Okla. Coop. Sur.).

GRASSHOPPERS - OHIO - Statewide populations of longhorn and
shorthorn species increased rapidly in clovers and in second and
third-cutting alfalfa. In northwest area, counts ranged 5-14 per
50 sweeps. Counts heavier in Muskingum (1-2 per sweep) and
Fairfield (1 per 2 sweeps) Counties. Most not full grown. (Fox,
Dowell) .

SOYBEANS

MEXICAN BEAN BEETLE (Epilachna varivestis) - MARYLAND - Egg laying
on Eastern Shore expected to increase during mid to late August;
larval populations should peak first 14 days of September. (U. Md . ,
Ent. Dept.). VIRGINIA - Populations and damage remained spotty,
only early planted soybeans showed most damage. New generation
of adults appeared in Virginia Beach and Northumberland County;
populations may soon "mushroom." Farmers advised to check fields
weekly . (Allen ) .

GREEN CLOVERWORM (Plathypena scabra) - ILLINOIS - Populations
still noneconomic throughout State, although increased slightly
over last week. Heaviest area in north-central region. Heaviest
county and individual field averaged 45 and 100 larvae per 100
sweeps, respectively, in La Salle County. (111. Ins. Rpt.).
MISSISSIPPI - Larvae light in all soybean fields surveyed.
Field averages ranged 2-8 per 25 sweeps in Noxubee, Lowndes,
Clay, Monroe, and Chickasaw Counties. (Robinson).

- 672 -

VELVETBEAN CATERPILLAR (Anticarsia gemmata 1 is ) - FLORIDA - Larvae
averaged 8 per row foot and caused economic defoliation in 100-
acre soybean field at Alachua, Alachua County. (Fla. Coop. Sur . ) .

BEET ARMYWORM (Spodoptera exigua) - GEORGIA - Heavy in 600-acre
soybean field in Macon County. Treatments required. (Hewberry) .

CABBAGE LOOPER (Tr ichoplusia ni) - OKLAHOMA - Moderate in soybeans
in Muskogee and McCurtain Counties. (Okla. Coop. Sur.).

THREECORNERED ALFALFA HOPPER ( Spissist ilus f estinus) - OKLAHOMA -
Continued heavy in soybeans in Muskogee and McCurtain Counties.
(Okla. Coop. Sur.).

PEANUTS

LESSER CORNSTALK BORER ( Elasmopalpus lignosellus) - ALABAMA -
Infestation as heavy or heavier than ever known in 20,000 acres
of peanuts grown in Barbour County. Critical damage period is
from now until harvest. Larvae heavy and damaged limbs, pegs, and
roots in several fields checked in Houston County. (Roney) .
OKLAHOMA - Infestations declined in Marshall County peanuts due
to recent rains but still ranged 25-50 percent of plants infested
in untreated fields. Light infestations noted in McCurtain
County. (Okla. Coop. Sur.).

GRANULATE CUTWORM (Feltia subterranea) - OKLAHOMA - Light to
moderate in peanuts in Hughes, Marshall, and McCurtain Counties.
(Okla. Coop. Sur.). GEORGIA - Heavy in Dooly County peanuts;
ranged light to heavy across peanut belt. (French, Morgan).

BEET ARMYWORM (Spodoptera exigua) - GEOGIA - Ranged very light
to heavy across peanut belt-! (French ) . OKLAHOMA - Light on
peanuts in Marshall County. (Okla. Coop. Sur.).

SOUTHERN CORN ROOTWORM (Diabrotica undec impuncta ta howardi) -
GEORGIA - Heavy in Terrell County peanuts ; ranged light to heavy
across peanut belt. (French, Jennings).

COTTON

BOLL WEEVIL (Anthonomus grandis) - TENNESSEE - Punctured squares
ranged 1-38 percent in fields surveyed in Fayette and Hardeman
Counties, average 13 percent for all fields. Of fields surveyed
in these counties, 76 percent at or above control levels. (Locke).
Counts in Henderson and McNairy Counties ranged 30-50 percent
in fields where treatment applied. Conditions ideal for further
increases in western area. Frequent rains made control very
difficult. Above counts made in fields where treatments applied
regularly. Second -generation "hatchout" began in these counties;
overlapping of first and second-generation adults occurring in
these fields. In some fields, cotton "cutting out" and second-
generation adults migrating to rank fruiting cotton in area.
(Patrick, Locke). Punctured squares ranged 4-25 percent in central
area. Overall, population lighter than previous week. Second-
generation "hatchout" just began. Some fields began "cutting out."
Migration expected to begin in next few days. Rank fruiting
cotton should be checked closely for increase in weevil damage
during next 14 days. (Cagle) .

- 673 -

GEORGIA - Boll weevil infestations light to heavy in cotton
throughout State. Treatment needed in one percent of acreage in
southern area. (Boone, Womack) . ALABAMA - Square infestations by
third and later overlapping weevil generations ranged 2-30 percent
throughout State where controls effectively applied to 60-80 per-
cent of 600,000 acres of cotton. Infestation heavier in northern
area where controls only recently started. Infestation 30-80 per-
cent in fields where control poor. (Smith et al.). MISSISSIPPI -
Average infestation less than one percent in 272 fields in Bolivar,
Sunflower, and Washington Counties. Punctured squares 30+ percent
with average of 8 percent noted in some spots in Pontotoc, De Soto,
Tippah, and Noxubee Counties. (Robinson).

LOUISIANA - Boll weevils continued to emerge from squares on
ground during week ending August 12 and damaged square counts
increased. All fields checked showed some damage, but only 9 per-
cent of these fields had 25 percent or more damaged squares.
Weevil counts heavier than for past several years; movement to
previously uninfested fields should occur next several weeks.
(Tynes) . Percent damaged squares by parish (number of fields in
parentheses) as follows: Bossier 2-19 (17), St. Landry 11-60 (13),
St. Martin 1-80 (36), Rapides 1-52 (47), Catahoula 3-79 (25).
Treatments applied. (St. Cloud, Coburn) . ARKANSAS - Infestations
increased but continued below normal for this time of year. Many
fields not treated to date which in most years are on regular
schedule by this time. (Boyer). OKLAHOMA - Punctured square counts
ranged up to 53 percent in Tillman County, up to 27 in Jackson
and Greer Counties, up to 6 in Harmon County, up to 4 percent in
Kiowa County; ranged 40-50 percent in Caddo and Washita Counties,
4-30 in Grady County, 0-28 in Muskogee County, 0-2 percent in
Wagoner County, 1-10 percent in McCurtain County, and averaged
40 percent in Coal County. (Okla. Coop. Sur.).

TEXAS - Dissections of boll weevil specimens collected in fields
in south-central area showed 12-20 percent in diapause. Some
growers in southern part of this area reported cotton defoliating.
Many included treatments to control this pest. These growers
planning to continue treatment at 7-10 day intervals until stalks
removed from fields. Populations present in most fields where no
treatments applied in north-central area. Infestations continued
heavy in Knox and Wilbarger Counties. A. grandis caused 35-50
percent square damage in more heavily infested fields; damaged
bolls in older fields. Damaged 4 percent of bolls in Wilbarger
County field. Square damage ranged 15-25 percent in some fields in
Fisher, Foard, and Wichita Counties. Activity light in Baylor,
Clay, Cottle, Stonewall, and Young Counties. Populations variable
in San Angelo area with 5-10 percent square damage common. Square
damage 50 percent in one Tom Green County field. Populations down
from 1973. (Cole et al.).

BOLLWORMS (Heliothis spp . ) - ARIZONA - Eggs of H. zea (bollworm)
and H. virescens (tobacco budworm) ranged 16-40 per 100 plants at
Salt- River Valley, Maricopa County. Infestations of 10-15 percent
common around dairies where fields not being treated. (Ariz. Coop.
Sur.). NEW MEXICO - H. zea damaged bolls averaged 17 and damaged
squares 31 per 100 plants with up to 10 larvae recovered in Dona
Ana County. Five damaged squares and 2 damaged bolls per 10 plants
observed in Eddy and Chaves Counties. (N.M. Coop. Rpt.).

- 674 -

TEXAS - Heliothis zea and H. virescens populations increased in
south-central and Trans-Pecos areas. Counties in south-central
area including Brazos, Burleson, and Robertson reported heavy
activity during past week. Egg counts ranged up to 10 per plant
in some fields. About 95 percent of larvae H. virescens . H. zea
and H. virescens problem in many fields in r7al las and ForT Worth
area_where treatments applied for Anthonomus grand is (boll weevil).
Bollworms reported heavy in some fields in Wilbarger and Childress
Counties. Bollworms caused 5-15 percent square damage in Knox,
Wichita, Stonewall, and Fisher Counties. Beneficial insects kept
bollworm populations well below damaging numbers in most fields
throughout Rolling Plains. In Pecos and Reeves Counties bollworm
eggs ranged 20-80 per 100 terminals with some isolated fields
having 150-200 eggs per 100 terminals. Larvae ranged 2-14 per 100
terminals. Damaged square counts ranged 6-30 percent in surveyed
fields. Bollworm activity light in Martin County. Egg hatch
increased in Midland and Glasscock Counties. H. virescens moths
readily detected in cotton fields in Pecos and" Reeves Counties. In
some fields, 50 percent of bollworm and budworm complex were
H. virescens. Heliothis spp . caused 10-15 percent square damage
Tn Tom Green , Runnels , and Blanco Counties. (Cole et al.).

OKLAHOMA - In Jackson, Tillman, Harmon, Greer, and Kiowa Counties,
Heliothis spp. eggs ranged 5-22 and larvae 3-34 per 100 terminals,
damaged squares ranged 2-28 percent. Damage ranged up to 80 per-
cent in Washita and Caddo Counties and averaged 20 percent in Grady
County. Eggs ranged 0-6 and larvae 0-5 per 100 terminals in
Muskogee and Wagoner Counties. Eggs ranged 0-20 and larvae 0-12
per 100 terminals in McCurtain County. Eggs light in Bryan County.
Damage ranged 2-12 percent in Muskogee County, 20-24 percent in
Wagoner County, and 2-15 percent in McCurtain County. Larval
determinations indicate H. virescens (tobacco budworm) heavy in
some areas; comprised 90~ percent of population in some fields in
Tillman, Caddo, and Washita Counties, 30 percent in some fields in
Jackson County, and 50 percent in Grady County. Of 9 large larvae
collected in treated McCurtain County field, all were H. virescens .
(Okla. Coop. Sur.).

ARKANSAS - Infestations of H. zea and H. virescens below normal in
most areas. Many fields not treated to date which in most years are
on regular treatment schedule by this time. (Boyer) . LOUISIANA -
Heliothis spp. egg counts per 100 terminals by parish ranged as
follows Cnumber of fields in parentheses): Bossier 17-94 (17),
St. Martin 0-55 (36), St. Landry 2-57 (13), Rapides 2-350 (54),
Catahoula 0-8 (25). Treatments applied. (St. Cloud, Coburn) .
Heliothis spp. eggs still light in fields; difficult to find but
counts heavy enough to create problems if control applications
not made on regular schedule. Growers advised to stay on 5-day
schedule in fields already under treatment. Egg laying by H. zea
(bollworm) and H. virescens (tobacco budworm) moths increased by
August 16 and should be obvious by August 20. (Tynes) .

MISSISSIPPI - Oviposition by Heliothis spp. moths in cotton
increased throughout State. Some areas experienced locally
troublesome populations of H. virescens (tobacco budworm). Larvae
collected in 6 fields checked in Grenada and Yallobusha Counties,
90 percent were H. virescens. In 600 acres in Winston County where
control inadequate, ratio of larvae was 3 H. virescens to one H.
zea . (Robinson) . ALABAMA - H. zea and H. virescens moth flights

- 675 -

much heavier and more widespread with species about equal in
number. Eggs ranged 5-60 per 100 terminals, larvae 10-100 per
100 stalks in several fields. Controls difficult. Fields with
high counts related to recognizable poor control efforts past
14-21 days, increase in H. virescens larval counts, and plant
size. (McQueen) .

GEORGIA - Helicthis zea oviposition heavy, up to 106 eggs and 68
larvae per 100 terminals noted in Burke County. (Boone).
Moderate in 60-acre Pulaski County field. (Dinkins) . TENNESSEE -
In fields found infested in western area, Heliothis spp. counts
ranged 1-2 larvae or eggs per 100 terminals and 1-4 percent
damaged squares in western area. Terminal and square counts
continued well below control levels over area. (Locke, Patrick).
Counts ranged 0-5 larvae or eggs per 100 terminals and 0-6 percent
damaged squares in central area. Overall population and damage
remained very light. (Cagle) .

BEET ARMYWORM (Spodoptera exigua) - GEORGIA - Light in cotton
across southern area. (Womack , Boone). OKLAHOMA - Light on
cotton in Greer, Jackson, Harmon, and Tillman Counties. Heaviest
infestation 8 percent in Greer County. (Okla. Coop. Sur . ) .
TEXAS - Infested cotton in Rolling and High Plains areas. Light
to moderate damage noted in some Dickens County fields. Reduced
activity reported from counties surrounding Lubbock. (Boring,
Mclntyre) .

COTTON LEAFPERF0RAT0R (Bucculatrix thurber iella ) - TEXAS -
Increased infestations noted in Robertson County cotton. Popula-
tions continued to increase around field margins in Reeves,
Pecos, and Glasscock Counties. Larvae in isolated Pecos County
fields ranged 1-4 per leaf and 1-6 in "open horseshoe stage
on plants around field margins. (Cole, Neeb) .

PLANT BUGS - TEXAS - Lygus spp. (lygus bugs) ranged moderate to
heavy in isolated cotton fields in Coyanosa area of Pecos County.
Treatment applied to one field to prevent loss of small squares
and bolls. (Neeb). ARKANSAS - L. lineolaris (tarnished plant bug)
and Neurocolpus nubilis (clouded plant bug) increased in east-
cent r^ri—airea—as" result of increase in newly hatched nymphs.
Situation probably more pronounced than in most years due to
fewer fields than normal treated to date for Anthonomus grandis
(boll weevil) and /or Heliothis spp. (bollworms) . (Boyer )~

BANDEDWING WHITEFLY (Trialeurodes abutilonea) - MISSISSIPPI -
Locally heavy populations occurring in cotton throughout State.
Some treatments applied. (Robinson). ALABAMA - Infestations
increased Statewide. (McQueen) .

TOBACCO

TOBACCO FLEA BEETLE (Epitrix hirtipennis) - MARYLAND - Adults
averaged 10+ per leaf on late tobacco at Croom, Prince Georges
County. (U. Md . , Ent . Dept.). KENTUCKY - Ranged 20-25 adults per
plant in Fayette County. (Barnett) .

GREEN PEACH APHID (Myzus persicae) - KENTUCKY - Averaged 300 per
plant or about 31 per leal in Fayette County. About 35 percent
of burley has been topped. (Barnett).

- 676 -

MISCELLANEOUS FIELD CROPS

SUNFLOWER BLOSSOM MIDGE (Contarinia schulzi) - MINNESOTA -
Sunflower fields still infested but mostly in edge rows. Infesta-
tion noted at 50 percent in 20 outermost rows of field in Norman
County. Some immature heads completely destroyed; incidence less
than one percent. This infestation noted in less than 5 percent
of fields. (Minn. Pest Rpt . ) .

SUNFLOWER MOTH (Homoeosoma electellum) - SOUTH DAKOTA - Numerous
fields of sunflowers reported damage in northeast area; larvae
ranged up to 50 per plant. (Walgenbach, Kantack) .

GENERAL VEGETABLES

EUROPEAN CORN BORER (Ostrinia nubilalis) - WISCONSIN - Blacklight
trap catches indicated heavy increase in moth flights. Many times
heavier in central area than previous period. Moth flight heavy
enough to be important to vegetable growers. Eggs found on
volunteer corn plants in Portage County bean field and in
Waushara County potato field. (Wis. Ins. Sur . ) .

HAWAII INSECT REPORT

General Vegetables - CARMINE SPIDER MITE (Tetranychus
cinnabar inus) heavy on about one acre of sweet corn at Waianae,
Oahu; averaged about 30 forms per square inch of leaf surface.
Most leaves infested. (Mau) .

Fruits and Ornamentals - Heavy infestations of a CERAMBYCID
BEETLE (Sybra alternans) found in 6 possion fruit plants in 100-
acre planting at Kahului, Maui. Oviposition punctures too
numerous to count. Although not normal pest of passion fruit,
S. alternans reported damaging passion fruit at Hilo, Hawaii
Island, in August 1956. (Ah Sam, Funasaki) . Extensive survey for
ORANGE SPINY WHITEFLY (A leurocanthus spiniferus) on Oahu initiated
August 13. Survey of plants at minimum of 600 map-grid points
throughout populated areas of island expected to be complete by
early September. Rearing of A. spiniferus began in preparation
for mass rearing and release of parasites. (Mau).

Man and Animals - Mosquito collections from 73 light traps
operated on Oahu during June totaled 290 females of Aedes vexans
nocturnus and 3,593 females of Culex pipiens quinquef asciatus .
Aedes catches averaged 4 females per trap and Culex catches
averaged 49 females per trap. (Vector Control Br., State Dept.
Health) .

Beneficial Insects - Recovery data indicate that a BRACONID WASP
(Apanteles er ionotae ) , a larval parasite of Er ionota thrax
(banana skipper) , Is effective against this pest in certain areas
of Oahu. During June, A. er ionotae parasitized about 47 percent
of E. thrax larvae collected from site at Waianae. During July,
recovery data indicate this braconid wasp parasitized 100 percent,
zero percent, and 40 percent of E_^ thrax larvae collected from
individual sites at^ Waianae, Lualualei, and Ewa, respectively.
(Mau) .

- 677 -

DECIDUOUS FRUITS AND NUTS

CODLING MOTH (Laspeyresia pomonella) - MICHIGAN - Pheromone trap
catches at Fennville, Allegan County, indicated second-generation
moth flight increased. (Howitt, Olsen) . ARIZONA - Heavy in
previously untreated apples and pears at Safford, Graham County.
(Ariz. Coop. Sur.). IDAHO - Pheromone trap catches at Moscow,
Latah County, as follows: One August 9, 2 August 10, 5 August 11,
one August 12, none August 13 and 14, and 3 August 15.
(Portman) .

ORIENTAL FRUIT MOTH (Grapholitha molesta) - WASHINGTON - Peak
third-brood flight noted late July and early August. Nine-fold
reduction in third-brood moths noted in Parker and West Wapato
areas, Yakima County, compared to 1973. (Eves).

APPLE MAGGOT (Rhagoletis pomonella) - VERMONT - Adult emergence
continued at low level. (MacCollom) . MICHIGAN - Emergence peaking
from Grand Rapids, Kent County, southward, increasing northward.
(Olsen) .

CALIFORNIA PEARSLUG (Pristiphora abbreviata) - IDAHO - Collected
in pear orchard at Nampa, Canyon County, May 14, 1974, by H.W.
Homan. Determined by D.R. Smith. This is a new State record.
(Homan) .

FALL WEBWORM (Hyphantria cunea) - TEXAS - Populations increased
in south-central area pecans. Some commercial producers applied
treatments. Light activity noted in Brewster, Jeff Davis, Foard,
and Midland Counties, while light to moderate infestations noted
damaging pecan trees in Young County. (Cole et al.). OKLAHOMA -
Small second-generation larvae active on pecan trees in McCurtain
County and one egg mass reported hatching in Payne County.
(Okla. Coop. Sur.).

PECAN NUT CASEBEARER (Acrobasis caryae) - TEXAS - Continued to
damage pecans in Young, Wichita, Wilbarger, and Knox Counties.
Light in Ward and Ector Counties. (Boring, Neeb) . OKLAHOMA -
Moderate to heavy damage by second-generation larvae occurred on
untreated native pecans in Payne, Lincoln, and Seminole Counties.
Larvae ranged from about second instar to full grown.
(Okla. Coop. Sur . ) .

PECAN WEEVIL (Curculio caryae) - GEORGIA - Emergence continued
in Pike and Spalding Counties. (Dupree, Tippins) . Emergence
increased, with up to 64-88 adults in 400 emergence traps. First
pecan nut drop noticed in Peach County. (Payne). ALABAMA - Adults
fed on pecan nuts in Bullock County. Treatments applied in some
orchards. (Stone).

BLACK PECAN APHID (Tinocallis caryaef oliae ) - TEXAS - Infestations
in pecans increased in south-central area; some leaf drop observed
in area. Moderate to heavy infestations reported from Mason
County. Moderate to heavy populations on pecan foliage reported
in Pecos and Midland Counties. Light infestations reported in
Ward, Jeff Davis, and Brewster Counties. (Cole et al.).

- 678 -

YELLOW PECAN APHIDS (Monellia spp.) - TEXAS - Heavy infestations
on pecans reported from south-central counties. Large amounts of
honeydew reported covering foliage of trees in Brazos County
indicating heavy infestations. Heavy infestations also reported
from Jones County, while light to moderate infestations reported
from Young County. Aphids ranged 0-70 per compound leaf in Pecos
County. Recent rains helped reduce populations on pecan foliage.
In Midland County, 1-15 aphids per compound leaf reported.
Infestations light in Ward, Brewster, Jeff Davis, and Upton
Counties. (Green et al . ) .

BLACKMARGINED APHID (Monellia costalis) - OKLAHOMA - Ranged up to
25 per leaflet on Lincoln County pecans. Ranged light to moderate
in Seminole County. (Okla. Coop. Sur . ) .

SMALL FRUITS

CURRANT SPANWORM ( Itame ribearia) - WEST VIRGINIA - Larval damage
to currants light at Elkins, Randolph County. Collected by B.
Baker August 13. Determined by J.D. Hacker. This is a new county
record. (Hacker) .

IMPORTED CURRANTWORM (Nematus ribesii) - WEST VIRGINIA - Larvae
rolled leaves of currant bushes and caused light damage at Elkins,
Randolph County. Collected by B. Baker August 13. Determined by
J.B. Hacker. This is a new county record. (Hacker).

ORNAMENTALS

MIMOSA WEBWORM (Homadaula anisocentra) - WEST VIRGINIA - Larvae
caused 80 percent damage to most mimosa and honeylocust trees
at Spencer, Roane County. (Atkins). OKLAHOMA - Second-generation
pupation nearly complete on mimosa trees in Stillwater area, Payne
County. (Okla. Coop. Sur.).

TWOSPOTTED SPIDER MITE (Tetranychus urticae) - OHIO - Heavy on
greenhouse chrysanthemums in Cuyahoga County. Heavy feeding
pressure produced flower discoloration and webbing over buds.
Heavy infestations on chrysanthemums not common. (Lindquist).

FOREST AND SHADE TREES

ELM LEAF BEETLE (Pyrrhalta luteola) - MISSISSIPPI - Heavy infesta-
tions noted on elms in Lee, Monroe, and Clay Counties. (Robinson).
KANSAS - Significant third generation expected at Manhattan,
Riley County, this year; unlike 1973 when second-generation beetles
laid few eggs. Eggs and some early instar larvae of third
generation present on Siberian elms at Manhattan, egg laying
continued. (Bell). CALIFORNIA - Very damaging to elms -,in San
Joaquin Valley and northern counties. Unseasonable rains had
adverse effect on treatments. Heavy leaf drop on street trees
as bad as fall drop. Many 100-foot tall elms completely defoliated.
(Cal. Coop. Rpt.).

- 679 -

MAN AND ANIMALS

HORN FLY (Haematobia irritans) - ALABAMA - Heavy on livestock in
Morgan County. (Rutledge, Bass). MISSISSIPPI - Averaged 200+ per
head on beef cattle in Monroe and Noxubee Counties. (Robinson).
TENNESSEE - Counts per head by county ranged as follows :
Washington 40-100, Cocke 25-60, Madison 0-50. (Walker, Turpen ) .
INDIANA - Very light on cattle on experimental farm in Grant
County. (Dobson) . ILLINOIS - Average counts per head on untreated
pastured beef cattle by county as follows: Grundy 7.6, Peoria 56.
(111. Ins. Rpt.). WISCONSIN - Annoyance moderate to severe in some
Trempealeau County herds. About 150 • per side noted on some herds,
only about 45 per side on nearby herds. Averaged 25 per side on
Dane County herd. Cattle throughout State observed crowding to
avoid annoyance. (Wis. Ins. Sur . ) . IOWA - Ranged 25-200 (average
75) per head on untreated Story County cattle. (Iowa Ins. Sur.).
NEBRASKA - Averaged 100 per animal on untreated range cattle in
Keith, Arthur, McPherson, and Lincoln Counties. (Campbell).
OKLAHOMA - Averaged 350 per head on cows and 1,000 per head on
bulls in Payne County. (Okla. Coop. Sur.). TEXAS - Active in
north-central, San Angelo, Trans-Pecos , and Rolling Plains areas.
Moderate activity reported in Young County. Many growers in
Panhandle area noted increased activity. (Turney et al.). UTAH -
Generally heavy on untreated beef and dairy herds in Millard
County. (Chapman).

FACE FLY (Musca autumnalis) - MISSISSIPPI - Averaged 8 per face
in Noxubee County and 35 per face on cattle in Chickasaw, Monroe,
and Lee Counties. (Robinson) TENNESSEE - Counts per head on
cattle by county ranged as follows: Washington 10-20, Cocke
15-20, Madison 0. (Walker, Turpen). KENTUCKY - Collected by
D.E. Barnett and P.H. Freytag in Bourbon County July 2-9, 1974.
Determined by D.E. Barnett. Confirmed by F. Knapp . This is a new
county record. (Barnett). INDIANA - Ranged 5-10 per face on
several lots of cattle on experimental Grant County farm. (Dobson) .
ILLINOIS - Average counts per head on untreated pastured beef
cattle by county as follows: Grundy 18, Peoria 59.5. (111. Ins.
Rpt.). IOWA - Ranged 5-55 (average 19) per head on untreated
Story County cattle. (Iowa Ins. Sur.). WISCONSIN - Variable among
cattle herds. Averaged 6 per face on Dane County herd; populations
heavy on some herds in other areas. (Wis. Ins. Sur.). NEBRASKA -
Ranged 15-20 per face on cattle in canyon and river bottom
pastures in Keith, Arthur, McPherson, and Lincoln Counties.
(Campbell). UTAH - Annoyed horses at North Ogden , Weber County.
(Knowlton) .

STABLE FLY (Stomoxys calcitrans) - ILLINOIS - Average counts per
head on untreated pastured beef cattle by county as follows :
Grundy 9.8, Peoria 1.2. (111. Ins. Rpt.). WISCONSIN - Annoyance
to cattle severe in Calumet, Kewaunee, and Rock Counties. (Wis.
Ins. Sur.). NEBRASKA - Increased with recent rains, ranged 10-15
per leg on cattle in feedlots in Keith, Arthur, McPherson, and
Lincoln Counties. (Campbell). OKLAHOMA - Averaged 4 per head on
dairy cattle in Payne County. (Okla. Coop. Sur.).

- 680-

TABANID FLIES (Tabanus spp.) - OKLAHOMA - Populations somewhat
variable on cattle in Payne County. Counts taken in favorable
locations and weather conditions averaged 3.5 T. lineolar is ,
1 T. atratus , 1 T. sulcif rons , and less than 1 T. abactor per
head. (Ok la. Coop. Sur . ) .

A LOUSE FLY (Hippobosca longipennis) - CALIFORNIA - Treatment
program initiated due to death of prized cheetah at San Pasqual
Wild Animal Park, San Diego County; 6 of 11 cheetahs bathed.
Heavy flea population prompted tranquilizing and bathing of
cheetahs. H. longipennis ranged 5-45 per animal on six animals
bathed. Treatment will relieve situation temporarily, but flies
from pupae on grounds and fleas from squirrel population will
soon re-infest cheetahs. (Cal. Coop. Rpt . ) .

MOSQUITOES - FLORIDA - Adults annoying and biting dairy cattle
near Stuart, Martin County. Grower planning treatment. (Fla. Coop.
Sur.). ALABAMA - Culex pipiens quinquef asciatus and other species
extremely heavy throughout State"! (McQueen) . KENTUCKY - Mosquito
populations declined along Kentucky Reservoir bordering Lyon,
Trigg, Marshall, and Calloway Counties. (Barnett , Christopher).
OHIO - In Lake County, 20 light traps operated August 13 and 15
captured 2,837 adult mosquitoes, mostly Culex spp., Coquillett idea
spp. , and Aedes cantator . Some Aedes canadens is , A. tr ivittatus ,
A. vexans , _A. tr iser iatus , and Anopheles spp. taken. (Ohio Dept.
Health). WISCONSIN - Mosquitoes heavy only in Iron and Bayfield
Counties. Generally not their usual problem in most areas. (Wis.
Ins. Sur.). OKLAHOMA - Mainly Psorophora spp. increased rapidly
during past 14 days of rainy weather in Payne County area.
(Okla. Coop. Sur.). UTAH - Mosquito populations below normal
in Delta and Deseret areas of Millard County. Populations worse
in Hinckley and Sutherland areas. (Chapman).

LONE STAR TICK (Amblyomma americanum) - TEXAS - Moderate to heavy
in bushy areas along creeks throughout most counties in San Angelo
area. (McWhorter) .

HOUSEHOLDS AND STRUCTURES

AN ANT (Camponotus caryae discolor) - SOUTH CAROLINA - Heavy
infestation found around Oconee County residence July 11, 1974.
Collected and determined by D.K. Pollet. Treatments applied. This
is a new county record. (McCaskill) .

FEDERAL AND STATE PLANT PROTECTION PROGRAMS

GRASSHOPPERS - MINNESOTA - Adult survey underway. In four districts
surveyed only in southeast district was an economic field infesta-
tion found. Counts ranged 9-18 per square yard in one Dodge
County alfalfa field. Predominant species were Melanoplus
bivittatus and M. f emurrubrum. Very little migration into fields
from roadsides noted ; no significant damage reported. Development
varied with M. f emurrubrum ranging from third to fifth instar.
M. bivittatus , M. dif f erentialis , and "slant-face" species mainly
in adult stage . Occasional fourth and fifth instars found. (Minn.
Pest Rpt . ) .

- 681 -

NORTH DAKOTA - Cropland survey showed widespread economic adult
grasshopper infestations in south-central, southwest, and west-
central counties. Counts ranged up to 50 per square yard in some
alfalfa fields and field margins. Most small grains in these
counties escaped major damage as development late this year. How-
ever, row crops such as corn and winter wheat may be damaged later
in fall. Grasshoppers ranged from third instar through adults.
Melanoplus bivittatus , M. dif ferentialis , M. packardii , M.
sanguinipes , and M. f emurrubrum dominant species. (Brandvik) .
MONTANA - Grasshoppers, mostly Melanoplus spp., in third and
fourth instars on rangeland north of Sidney, Richland County,
and southwest of Plevna, Fallon County. Ranged 15-20 per square
yard on 5,000 acres of cropland, mostly alfalfa and hay, and 10-
20 per square yard on 8,000 acres of range. Averaged 50 per square
yard on farm, fed only on rhubarb. (Knopp) . UTAH - Grasshoppers
noted at 50 per square yard on roadside crested wheatgrass at
North Logan and 4 per square yard in alfalfa field at Hyde Park,
Cache County. (Knowlton) . Rangeland species migrating into nearby
crops along foothills of Cache County mountains. (Burtenshaw) .
Locally heavy populations noted in Cache and Weber Counties;
moderate in Morgan County. (Stephens). NEVADA - Camnula pelluc ida
(90 percent) and Melanoplus f emurrubrum and M. sanguinipes (10
pervent) ranged 2-35 (average 5) per square yard on 100 acres of
native hay at Soldier Meadows, Humboldt County. Conozoa wallula
(90 percent) and M. sanguinipes (10 percent) ranged 4-5 per square
yard on 640 acres of alfalfa hay in Hualapae Valley, Washoe County.
(Barclay, Bechtel) . WASHINGTON - Oviposition bed about one acre in
size noted in grassfield in foothills area near Spokane, Spokane
County; oviposition heavy. Grassfield nearby noted with population
of about 20 per square yard. (Harwood et al.).

JAPANESE BEETLE (Popillia japonica) - MARYLAND - Adults decreased
in most areas. First small larvae of season observed August 13
in St. Marys County. (U. Md. , Ent . Dept.).

PINK BOLLWORM (Pectinophora gossypiella) - TEXAS - Activity still
light in most Trans-Pecos area cotton. Isolated fields with 2-5
percent boll infestations noted in Hutchinson and Reeves Counties.
(Neeb) . NEW MEXICO - Four damaged bolls recovered from cotton and
27 moths taken in sex lure traps in Dona Ana County. (N.M. Coop.
Rpt.). ARIZONA - Negative bloom and boll counts at Bowie and San
Simon, Cochise County. Third generation underway at Marana, Pima
County, few fields treated but cotton making excellent progress.
Scheduled treatment continued in majority of fields at Maricopa
and Yuma Counties. (Ariz. Coop. Sur.).

WHITEFRINGED BEETLES (Graphognathus spp.) - ALABAMA - Adults
heavy and widespread in areas of Cottonwood, Ashford, and Taylor
Communities in Houston County; fed on soybean and peanut foliage.
(Roney) .

- 682 -

DETECTION

New State Records

A TENEBRIONID BEETLE (Blaps lethifera) - MARYLAND - Found near
horse stables under roof on bare ground littered with wood
chips, horse hair, feathers, horse and chicken manure, straw,
hay, and loose dirt at Randallstown , Baltimore County, May 21,
1974, by E.J. Todd. Determined by T.J. Spilman. During past 70
years this species has been rarely collected in New Jersey, New
York, Ohio, and Virginia. (Ford).

CALIFORNIA PEARSLUG (Pristiphora abbreviata) - IDAHO - Canyon
County, (p. 678).

New County Records - AN ANT (Camponotus caryae discolor) SOUTH
CAROLINA - Oconee (p. 681). ARMYWORM (PseudlTTetia unTpuncta)
SOUTH CAROLINA - Darlington (p. 677). CURRANT SPANWORM (I tame
ribearia) WEST VIRGINIA - Randolph (p. 679). FACE FLY (Muse a
autumnalis) KENTUCKY - Bourbon (p. 680). IMPORTED CURRANTWORM
(NematusTibesii) WEST VIRGINIA - Randolph (p. 679). NORTHERN
CORN R00TW0RM (Diabrotica longicornis) MARYLAND - Dorchester
(p. 671). WESTERN CORN ROOTWORM (Diabrotica virgifera) OHIO -
Williams, Henry, Paulding (p. 6707"]

CORRECTIONS

CEIR 24(32) :626 - BEET ARMYWORM (Spodoptera exiqua) should read
(Spodoptera exigua).

CEIR 24(32): 636 - DETECTION - New State Records - Line 4:
Subcoccinella vigintiquaturopunctata should read vigintiquatuor-
punctata. New County and Island Records - Second paragraph, line
4: Spodoptera exiqua should read ... exigua.

- 683 -

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- 684 -

- 685 -

Sunday, thunderstorms produced scattered severe weather. Winds
damaged numerous trailers, cars, powerlines, and trees near
Alexandria, Louisiana. Golf ball-size hail pelted northwest Iowa
and southwest Minnesota.

TEMPERATURE: Mild weather and near-normal temperatures prevailed
across most of the Nation last week with only a few exceptions.
Temperatures averaging from 3 to 8 degrees below normal were
reported in the Dakotas, Montana, Wyoming, Idaho, Nevada,
California, Oregon, and Washington. Other States recording
temperatures 3 to 4 degrees below normal included Texas,
Nebraska, Arkansas, and Oklahoma. Only the northeastern corner
of California recorded temperatures as much as 6 degrees above
normal. Monday, cloudy weather prevailed along most of the
Pacific and southern Atlantic coasts. Afternoon temperatures
ranged from 59 degrees at Cutbank, Montana, and Everette,
Washington, to 99 degrees at Yuma, Arizona. Fair weather and
below-normal temperatures were welcomed over the Pacific Coast
States and the upper Plateau on Tuesday. Most afternoon readings
were in the 70 's and 80 ' s . Wednesday, Alamosa, Colorado, set a
new record low for this date with 36 degrees. Reno, Nevada,
recorded the lowest temperature on record for this date with 33
degrees. Many stations in the Desert Southwest climbed above the
century mark on Thursday. Outside the Desert Southwest, the
warmest section of the Nation was the lower Plains with afternoon
readings in the 90 's over nearly all of Texas, New Mexico, and
Oklahoma. Friday, warm, humid air off the Gulf of Mexico kept
the thermometer above 70 degrees during early predawn hours as
far north as southern Wisconsin. However, the forties were
reported in northern New England and from the extreme northern
Plains to the Pacific Northwest and the Great Basin. Saturday,
east of the Mississippi River partly cloudy skies with afternoon
readings in the 70 's and 80 ' s prevailed. However, in the southern
Plains 90-degree readings were the rule with Garden City,
Kansas, crossing the century mark by early afternoon. The
northern Pacific coast continued to be the Nation's cool spot
with highs only in the 60 's on Sunday.

- 686 -