Digitized by the Internet Archive in 2011 with funding from University of Illinois Urbana-Champaign UNIVERSITY OF ILLIN 'RARY AT URBAi -.AMPAIGN AGRICULTURE http://www.archive.org/details/1979insectpestma01979univ CIF 3C0PY__ iARY 1979 Insect Pest Management Guide HOME, YARD, and GARDEN Much has been said about the effects of pesticides, par- ticularly insecticides, on the health and well-being of the American people. However, you are also aware that you are constantly faced with a horde of insects, intent upon destroying your property or making your life uncomfort- able. Destruction of crop residues, varietal selection, hand- picking, fertilization, tree pruning, irrigation, screening, and other practices may reduce the numbers of insects with which you must contend. Occasionally you can even avoid or at least reduce the destruction by some pests without using an insecticide, but for most insects you must rely on an insecticide to provide the satisfactory management that you want. By careful use of insecticides and other pest manage- ment tools, you can enjoy reasonable freedom from insects without endangering either yourself, your family, or your pets. You must recognize, however, that insecticides are designed to destroy one group of animals — insects — and can be harmful to other animals, including man him- self, if used with disregard of normal safety precautions. It is up to each insecticide user to handle, apply, and store insecticides safely to reap their benefits without suffering from their dangers. This publication lists certain insecticides to control insect pests of food, fabrics, structures, man and animals, lawns, shrubs, trees, flowers, and vegetables. We have tried to suggest only the safest materials. Many people prefer to employ the services of a professional extermi- nator or custom applicator rather than to become involved with selection and application of an insecticide. The names used in these tables are the common coined chemical names, not the trade names, and as such may not be familiar to you. For instance, the common name for Cygon is dimethoate. If there is no coined chemical name, the trade name is used but is capitalized. Requested label clearances for a few uses of some in- secticides, carriers, and solvents are uncertain for 1979, since many requests have not yet been officially cleared. Consequently, labels may be cancelled and the product re- moved from the market at any time. Anticipating this, we took a conservative attitude a few years ago and began modifying these suggested uses. We have attempted to anticipate any further label changes in 1979, but there still may be an occasional use cancelled. Be sure to check with your local county Extension adviser if you are not sure about the insecticide you plan to use. We will make an- nouncements of label changes through the news media in an attempt to keep you up to date. Insecticides are being classified for general use or re- stricted use by the U.S. Environmental Protection Agency. Only a few insecticides have been classified for restricted use at this time. There are no insecticides listed in this cir- cular that have a restricted use classification. A person wishing to use an insecticide classified for restricted use must be certified as a private or commercial pesticide ap- plicator by the State of Illinois. Contact your county Ex- tension adviser in agriculture for details on this program. Suggestions for use of insecticides, effective from a practical standpoint, are based on available data. Many factors affect efficiency of control. Report details of con- trol failures to us. In using these tables, always read the footnotes before using the insecticides. They list precautions and other pertinent information. These suggestions are subject to change without notifi- cation during the year. Leaflets describing the life history, habits, and damage of specific insects and nonchemical methods of control can be obtained from offices of county Extension advisers or by writing to Entomology Extension, 172 Natural Resources Building, Urbana, Illinois 61801. These are indicated by an XHE number in the tables. This circular was prepared by entomologists of the University of Illinois College of Agriculture and the Illinois Natural History Survey. UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN COLLEGE OF AGRICULTURE COOPERATIVE EXTENSION SERVICE In cooperation with ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 900 (revised annually) November, 1978 VEGETABLE INSECTS Insects Crop Insecticide Suggestions Aphids (NHE-47) Mites (NHE-58) Thrips Most garden crops malathion or Apply on foliage to control the insects. Aphids and leafhoppers diazinon transmit plant diseases; early control is important. Mites web on the underside of leaves; apply insecticide to underside of leaves early before extensive webbing occurs. Blister beetles (NHE-72) Cutworms (NHE-77) Flea beetles (NHE-36) Grasshoppers (NHE-74) Leafhoppers (NHE-22) Picnic beetles (NHE-40) Most garden crops carbaryl For cutworms, attach collars of paper, aluminum foil, or metal at planting for small numbers of plants, or apply insecticide to base of plants at first sign of cutting. Control grasshoppers in garden borders when hoppers are small. For picnic beetles, pick and destroy overripe or damaged vegetables. All cabbage worms (NHE-45) Cabbage and related crops, salad crops, and leafy vegetables Bacillus thuringiensis1 Presence of white butterflies signals start of infestation. Con- trol worms when small. It is almost impossible to raise cole crops in Illinois without controlling these pests. Hornworms (NHE-130) Fruitworms Tomatoes carbaryl Bacillus thuringiensis1 Handpicking usually provides satisfactory control. Earworms (NHE-33) Tomatoes and sweet corn carbaryl Apply to late-maturing tomatoes 3 to 4 times at 5- to 10-day intervals from small-fruit stage. Apply at fresh-silk stage to early and late corn every 2 days 4 to 5 times. Colorado potato beetles Eggplant, potatoes, tomatoes carbaryl Apply as needed. Insects usually present only in late May and June. Potato leafhoppers (NHE-22) Potatoes, beans carbaryl or malathion Apply 3 to 4 times at weekly intervals starting in late May or early June. Late potatoes and beans require additional treat- ments. Most serious pest of potatoes and beans in Illinois. Bean leaf beetles (NHE-67) Beans carbaryl Leaves are riddled in early plantings. Apply once or twice as needed. Mexican bean beetle Beans carbaryl Except for southern Illinois, only a pest of late beans. Apply insecticide to underside of leaves. Cucumber beetles (NHE-46) Vine crops carbaryl Apply as soon as beetles appear in spring. When blossoming begins, apply insecticide late in the day so as not to interfere with pollination by bees. Squash vine borers Squash carbaryl Make weekly applications to crowns and runners when plants begin to vine. Apply late in day. Corn borer Sweet corn carbaryl Apply 4 times every 3 days to whorl and ear zone of early corn when feeding appears on whorl leaves. Soil insects (including grubs, wireworms, root maggots) All crops diazinon Mix 6 fluid ounces of 25% diazinon emulsion in enough water to cover 1,000 sq. ft., usually 2 to 3 gallons. Rake into soil. Days to Wait Between Application and Harvest Collards, Cabbage kale, and and other leafy related crops Beans Lettuce crops Sweet Vine corn Onions crops2 Tomatoes Pumpkin Eggplant Peas Potatoes carbaryl 14 0 diazinon . . 7 malathion 7 1 14 14 3 0 0 0 7 2 .. 7 3 7 5 3 11 0 3 0 3 0 0 0 3 0 Amount of Insecticide for Volume of Spray 1 gal. 6 gal. 100 gal. Commercial dust carbaryl (Sevin) 50% W.P. diazinon 25% E.C. malathion 50-57% E.C. 2 tbl. M cup 2 tsp. 4 tbl. 2 tsp. 4 tbl. 2 1b. lqt. lqt. 5% 4% 4% E.C. = emulsion concentrate; W.P. = wettable powder. An emulsion concentrate is a chemical pesticide dissolved in a solvent to which an emulsifier has been added. It can then be mixed with water to the desired strength before being used. 1 No time limitations. * Only apply insecticide late in the day after blossoms have closed to avoid bee kill. 0,630-1 K&X FLOWER INSECTS Insect Insecticide1 Dosage Suggestions Ants, soil-nesting wasps, and sowbugs (NHE-17, 79, 93, 111) White grubs diazinon 25% E.C. 1 cup per 1,000 sq. ft. Drench into soil. Aphids, mealybugs, spittlebugs, lacebugs, scales (NHE-7, 114) malathion 50-57% E.C. 2 tsp. per gal. water Spray foliage thoroughly. Repeat treatments may be needed. Blister beetles (NHE-72) carbaryl 50% W.P. 2 tbl. per gal. water Spray foliage. Repeat treatments may be needed. Cutworms (NHE-77) diazinon 25% E.C. diazinon 2% granules 6 oz. per 2-3 gal. water 5 lb. per 1,000 sq. ft. Spray 1,000 sq. ft. soil at base of plants. Do not spray on plant foliage. Small numbers of plants can be protected with collars of paper, alumi- num foil, or metal. Grasshoppers (NHE-74) carbaryl 50% W.P. malathion 50-57% E.C. 2 tbl. per gal. water 2 tsp. per gal. water Spray foliage and also adjacent grassy or weedy areas. Iris borer dimethoate (Cygon, DeFend) 23.4% E.C. or 25% W.P. 4 tsp. per gal. water Apply when irises are in bloom, but not on blooms and make only one application. Add a small amount of liquid detergent to spray mix to im- prove coverage on leaves. Leaf-feeding beetles carbaryl 50% W.P. 2 tbl. per gal. water Spray foliage. Repeat treatments if needed. Leaf -feeding caterpillars Same as for leaf-feeding beetles Plant bugs and leafhoppers Same as for leaf-feeding beetles Slugs (NHE-84) metaldehyde bait Mesurol 2% bait Apply as a bait to soil. Remove old leaves, stalks, poles, boards, and other debris where slugs like to hide and lay eggs. Spider mites (NHE-58) dicofol 18.5% E.C. 2 tsp. per gal. water Pay particular attention to underside of leaves when spraying. Apply 2 or 3 times at weekly intervals. Springtails (NHE-70) malathion 50-57% E.C. malathion 4% dust 2 tsp. per gal. water Spray foliage and soil. Apply to soil at base of plants. Stalk borers (NHE-24) Same as for leaf-feeding beetles Spray foliage thoroughly and frequently. Thrips Same as for leaf-feeding beetles Spray foliage carefully. White flies (NHE-136) pyrethrin 0.1% resmethrin aerosol spray Spray foliage thoroughly. Repeat in 5 days. 1 Use only one insecticide from those listed. Do not use oil-base sprays on plants. Do not use malathion on African violets. Do not use carbaryl on Boston ivy. Do not use diazinon on ferns. Repeated use of carbaryl foliage sprays may cause mite or aphid infestations to in- crease and become damaging. Do not use insecticides during full bloom. Do not use dimethoate on chrysanthemums. E.C. = emulsion concentrate; W.P. = wettable powder. FOR YOUR PROTECTION 1. Store insecticides out of reach of children, irre- sponsible persons, or animals ; store preferably in a locked cabinet. 2. If you use a bait around or in the home, place it after the children have retired and pick it up in the morn- ing before they get up. Furthermore, place it out of their reach. At present we do not encourage use of baits for insect control. 3. Avoid breathing insecticide sprays and dusts over an extended period. This is particularly true in enclosed areas such as crawl spaces, closets, basements, and attics. 4. Wash with soap and water exposed parts of body and clothes contaminated with insecticide. 5. Wear rubber gloves when handling insecticide con- centrates. 6. Do not smoke while handling or using insecticides. 7. Leave unused insecticides in their original contain- ers with the labels on them and in locked cabinets. 8. Triple-rinse empty pesticide containers and wrap in several layers of paper and dispose of one at a time through the municipal solid waste disposal system. 9. Do not leave puddles of spray on impervious sur- faces. Do not apply insecticides to fish ponds. Do not apply insecticides near dug wells or cis- 10. 11. terns. 12. Observe all precautions listed on the label. TREE AND SHRUB INSECTS Insects Insecticide1 Suggestions2 Aphids (NHE-7) diazinon malathion Spray foliage thoroughly with force. Repeat as needed. Bagworms (NHE-6) carbaryl malathion Bacillus thuringiensis Spray foliage thoroughly. Apply June 15. Later sprays are less effective. For late spraying, use Bacillus thuringiensis. Borers (NHE-8) Bronze birch dimethoate Spray trunk and limbs thoroughly in late May and early June. Repeat in 3 weeks. See leaf miner recommendations on insecticide label. Ash Lilac Peach tree chlorpyrifos Spray trunk and limbs in mid-June and repeat 4 weeks later. Cankerworms (NHE-95) acephate carbaryl malathion Bacillus thuringiensis Spray foliage when feeding or worms are first noticed in spring. Eastern tent caterpillars Same as for cankerworms Spray when nests are first noticed. Elm leaf beetle (NHE-82) carbaryl Spray as soon as damage is noticed. European pine shoot moths dimethoate and Nantucket pine moth (NHE-83) Spray ends of branches thoroughly in late June for European species and in mid-May for Nantucket species. Fall webworms acephate carbaryl diazinon malathion Bacillus thuringiensis Spray when first webs appear; clip off and destroy infested branches or burn out webs. Galls (NHE-80, 81) Elm cockscomb Hickory Maple bladder diazinon malathion Spray foliage thoroughly when buds are unfolding. Sprays after galls form on leaves are ineffective. Hackberry blister diazinon malathion Spray foliage thoroughly in late May. Kills psyllids in galls. Sprays after galls form on leaves are ineffective. Cooley spruce Eastern spruce diazinon malathion Apply in late September or October or early spring just before buds swell. Green-striped mapleworms Same as for cankerworms Spray as soon as damage is noticed. Leaf miners Boxwood Hawthorn Oak diazinon malathion Spray foliage thoroughly when miners first appear. Repeat treatment in 10 to 12 days. Birch Holly dimethoate Repeat treatment in 3 weeks. Mealybugs malathion Spray foliage thoroughly and with force. Repeat in two weeks. Mimosa webworms (NHE-109) acephate carbaryl malathion Bacillus thuringiensis Spray foliage thoroughly when first nests appear (June, July). A repeat treat- ment may be needed. Mites (NHE-58) dicofol Pay particular attention to underside of leaves. Apply 2 or 3 times at weekly intervals. Oak kermes malathion Spray foliage thoroughly about July 1 to kill the crawlers. Periodical cicadas (NHE-113) Sawflies carbaryl Spray all branches thoroughly when adults appear. Repeat in 7 to 10 days. Same as for fall webworms Spray as soon as worms or damage is evident. Scale (NHE- 100, 114) diazinon malathion Spray foliage thoroughly in early April for Fletcher and European elm scale; in late May for pine needle and sweet gum scale; in early June for scurfy, oystershell, and euonymous scale; in early July for cottony maple, Juniper, and dogwood scales; in mid-July for spruce bud scale; and again in early August for oystershell scale. Cottony maple Putnam San Jose Tulip tree dormant oil diluted according to label Apply when plants are still dormant in late winter. Do not use on evergreens. For tulip tree scale, a malathion spray in late September or in early spring is also effective. 1 Use only one insecticide from those listed. 1 Treatment dates are listed for central Illinois. In southern Illinois apply 2 weeks earlier and in northern Illinois 2 weeks later. TREE AND SHRUB INSECTS (continued) Insects Insecticide1 Suggestions2 Sycamore lace bugs acephate carbaryl malathion Spray when nymphs appear, usually in late May. Thrips Same as for aphids Mainly on privet. Spray foliage thoroughly. Yellow-necked caterpillars acephate carbaryl malathion Spray foliage when worms are small. Zimmerman pine moths chlorpyriphos dimethoate Spray in mid-April or mid-August. * Use only one insecticide from those listed. * Treatment dates are listed for central Illinois. In southern Illinois apply 2 weeks earlier and in northern Illinois 2 weeks later. Amount of Insecticide Needed for Volume of Spray 1 gal. 6 gal. 100 gal. Igal. 6 gal. 100 gal. acephate (Orthene) 15.6% E.C.6 4 tsp. 1 cup 2 qt. carbaryl (Sevin) 50% W.P.1 2 tbl. Hcup 2 1b. chlorpyrifos (Dursban) 2E. 2 tsp. 4 tbl. lqt. diazinon 25% E.C.2 2 tsp. 4 tbl. lqt. dicofol (Kelthane) 18.5% E.C. 2 tsp. 4 tbl. 1 qt. dimethoate (Cygon, DeFend) 2 tsp. 4 tbl. 1 qt. 23.4%E.C, 25%W.P.3 malathion 50-57% E.C.4 2 tsp. 4 tbl. 1 qt. 1 Do not use on Boston ivy. ' Do not use on ferns or hibiscus. * Do not use on chrysanthemums. * Do not use on canaert red cedar. Do not use on flowering crab, sugar maple, redbud, American elm, Lombardy poplar, or cottonwood. E.C. = emulsion concentrate; W.P. = wettable powder. LAWN INSECTS Insects Insecticide1 Dosage per 1,000 sq.ft.2 Suggestions White grubs (NHE-104) Ants(NHE-lll) diazinon 25% E.C. 1 cup 5%G. 2^1b. Apply as spray or granules to small area and then water in thoroughly before treating another small area. Grub damage will usually occur in late August and in September. Ants(NHE-lll) Cicada killer and other soiling-nesting wasps (NHE-57, 79) diazinon 25% E.C. % cup 5% G. 2 lb. Apply as spray or granules and water in thoroughly. For individual nests pour 1% diazinon in nest and cover with soil. Sod webworms (NHE-115) carbaryl 50% W.P. 5%G. diazinon 25% E.C. .5%G. chlorpyrifos 2 E.C. 0.5% G. Aspon 13% E.C. y2\b. 41b. %cup 2 1b. l^fl-oz. 51b. 1 Yz cups As sprays, use at least 2.5 gal. of water per 1,000 sq. ft. Do not water for 72 hours after treatment. As granules, apply from fertilizer spreader. Webworms usually damage lawns in late July and in August. Millipedes and sowbugs (NHE-93) carbaryl 50% W.P. diazinon 25% E.C. ^lb. %cup Spray around home where millipedes or sowbugs are crawl- ing. If numerous, treat entire lawn. Armyworms Cutworms carbaryl 50% W.P. .5%G. chlorpyrifos 2 E.C. 0.5% G. 2 oz. lib. 1 H A- oz. 51b. Apply as sprays or granules. Use 5 to 10 gal. of water per 1,000 sq. ft. Chinch bugs chloropvrifos 2 E.C. Aspon 13% E.C. l^fl. oz. 2Yz cups Spray infested areas where chinch bugs are present. Aphids malathion 50-57% E.C. 1 tbl. Spray grass thoroughly. Chiggers diazinon 1 tbl. Spray grass thoroughly. Slugs (NHE-84) Mesurol 2% bait Apply where slugs are numerous. Scatter in grass. For use only in flower gardens and shrubbery beds. 1 Use only one insecticide from those listed. ' To determine lawn size in square feet, multiply length times width of lawn and subtract nonlawn areas including house, driveway, garden, etc. Do not allow people or pets on lawn until the spray has dried. E.C. = emulsion concentrate; W.P. = wettable powder; G. = granules. HOUSEHOLD INSECTS Insects Insecticide1 Dosage Suggestions Ants(NHE-lll) Crickets (NHE-137) Spiders (NHE- 17, 116) diazinon 25% E.C. chlorpyrifos diazinon propoxur Dilute to 0.5% with water 0.5% R.T.U. 0.5% R.T.U. 0.5% R.T.U. Use diazinon E.C. to spray completely around out- side foundation and the adjacent 5 ft. of soil. Apply an R.T.U. spray to baseboards, cracks, and door thresholds. Bed bugs malathion 50-57% E.C. malathion 1% dust Dilute to 1% with water R.T.U. Thoroughly spray slats, springs, and bed frame. Apply a light dust to seams, tufts, and folds of mat- tresses. Use clean bedding. Boxelder bugs (NHE-9) diazinon 25% E.C. carbaryl 50% W.P. Dilute to 0.5% with water Dilute to 0.25% with water Spray boxelder bugs on tree trunks, foundation walls (diazinon only), under eaves, and other areas where they gather. Indoors: Remove with vacuum. Carpenter ants (NHE-10) diazinon 25% E.C. diazinon propoxur Dilute to 0.5% with water 0.5% R.T.U. 0.5% R.T.U. Spray nest entrances and runways. Use outside foundation spray as recommended for ants. Treat nests directly for best results. Do not use diazinon E.C. inside. Carpet beetles, clothes moths (NHE-87) chlorpyrifos diazinon 0.5% R.T.U. 0.5% R.T.U. Spray storage areas, edges of carpeting, baseboards, etc. Prevent lint and dust from accumulating. Dry cleaning kills these pests. Store cleaned or washed woolens in insect-free chests and plastic bags. Centipedes, millipedes, diazinon 25% E.C. sowbugs (NHE-93) chlorpyrifos diazinon propoxur Dilute to 0.5% with water 0.5% R.T.U. 0.5% R.T.U. 0.5% R.T.U. Apply diazinon E.C. as an outside foundation spray. If millipedes are abundant, treat entire lawn accord- ing to label. Remove debris from around foundation. Indoors: Collect insects with vacuum or use R.T.U. spray according to label. Chiggers (NHE-127) diazinon 25% E.C. Dilute to 0.5% with water Treat lawns, roadsides, and areas not mowed. For personal protection, a repellent such as DEET will prevent attack. Take a warm, soapy shower or bath immediately after returning from an infested area. Clover mites (NHE-2) dicofol 18.5% E.C. pyrethrin Dilute to 0.03% with water 0.1% R.T.U. Spray outside of house from ground up to windows and adjacent 10 ft. of lawn. Repeat spray in 7-10 days if necessary'. Eliminate grass and weeds from 18-inch strip next to foundation. Indoors: Remove with vacuum, or spray with pyrethrin. Cluster flies (NHE-1) dichlorvos 20% resin strip2 pyrethrin 1 stripper 1,000 cu. ft. 0.1% R.T.U. Place resin strips in attic or other rooms. Fog lightly in rooms with pyrethrin. Repeat spray as needed. Seal cracks around windows, eaves, and siding to prevent entry. Cockroaches: German (NHE-3) Brown-banded (NHE-4) American, Oriental (NHE-5) chlorpyrifos diazinon propoxur 0.5% R.T.U. 0.5% R.T.U. 0.5% R.T.U. Spray roach runways and hiding places. Treat under sink, refrigerator, cabinets, on baseboards, etc. Treat- ment throughout home may be needed to control brown-banded roaches. Drain flies (NHE-91) dichlorvos 20% resin strip2 pyrethrin 1 strip per 1,000 cu. ft. 0.1% R.T.U. Use chemicals only after solving sanitation problems. Clean out overflow drains, drain traps, and cellar drains. Pour boiling water or rubbing alcohol into overflow drain to eliminate maggots. Earwigs diazinon 25% E.C. propoxur Dilute to 0.5% with water 0.5% R.T.U. Spray completely with diazinon E.C. around the out- side foundation wall and the adjacent strip of soil. Indoors: Apply R.T.U. spray to baseboards, cracks, and door thresholds. Elm leaf beetles (NHE-82) carbaryl 50% W.P. pyrethrin Dilute to 0.25% with water 0.1% R.T.U. Outdoors: Spray with carbaryl on nearby Chinese elm trees to control elm leaf beetle larvae and adults. Seal cracks around windows to prevent entry. Indoors: Remove with vacuum, or spray with pyre- thrin. Fleas (NHE-107) dichlorvos or naled flea collars Replace flea collars on pets about every 3 months. Some pets are allergic. carbaryl malathion 5% dust 4% dust Dust pets directly as needed. Dust areas inside and outside the home where pets rest. pyrethrin ronnel 0.1% R.T.U. 1% spray For infestations in the home spray baseboards, rugs, and floors where fleas are observed according to label directions. Vacuum rugs and upholstered furniture thoroughly. E.C. = emulsion concentrate ; W.P. == wettable powder ; R.T.U. = ready to use ; G. = granules. (SEE THE PESTICIDE DILUTION TABLE ON PAGE 8) HOUSEHOLD INSECTS (continued) Insects Insecticide1 Dosage Suggestions Houseflies (NHE-16) Gnats Midges Mosquitoes (NHE-94, 132) Punkies Outdoors: malathion 50-57% E.C. Dilute to 1% with water Spray tall grass and around doorways, refuse con- tainers, and other resting sites. Dispose of refuse twice each week. Eliminate standing water in eave troughs, tires, toys, tin cans, children's swimming pools, etc. Use a repellent like DEET when entering mosquito-infested areas. Indoors: pyrethrin dichlorvos 20% resin strips2 0.1% R.T.U. 1 stripper 1,000 cu. ft. Apply fine mist or fog of pyrethrin. Use screening and keep repaired. Dichlorvos resin strips give good control in tight, enclosed areas for about 3 months. Fly swatters are also effective. Lice, human (NHE-105) malathion 1% dust carbaryl 5% dust 1 oz. per adult person Dust lightly over body hair, and wash clothing and bedding. Repeat in 2 weeks if needed. Do not get in eyes. Mites, human Human scabies (NHE-135) Kwell 1% lotion available only by a doctor's prescription See your physician. Pantry and cereal insects diazinon (NHE-11) propoxur Saw-toothed grain pyrethrin beetles, cigarette beetles, etc. 0.5% R.T.U. 0.5% R.T.U. 0.1% R.T.U. Discard infested packages. Scrub or vacuum food cabinets and shelves. Force spray into cracks and crevices; allow to dry; cover shelves with clean, fresh paper. Do not contaminate food or utensils with insecticide. Powder-post beetles (NHE-85) Pentachlorophenol 5% oil Paint, spray, or dip to saturate infested unfinished wood. Pentachlorophenol has a strong, persistent odor. Follow label directions. Silverfish (NHE-86) diazinon propoxur 0.5% R.T.U. 0.5% R.T.U. Spray runways, baseboards, closets, and places where pipes go through the walls. Repeat treatments in 2 weeks if needed. Keep books and papers in dry places. Springtails (NHE-70) diazinon 25% E.C. Dilute to 0.5% with water Outdoors: Spray soil next to the house, especially- grassy moist areas. Eliminate low moist spots around the house. Indoors: Use vacuum. Allow soil to dry in potted plants or planter boxes. Swimming pool insects (NHE-103) Do not add insecticides to pool water Remove insects from the pool with dip nets. Clean the pool regularly. Termites (NHE-57) chlordane 45 or 72% E.C. Dilute to 1% with water or oil For soil injection along the building foundation and under footings, use 1 gal. per 2 cu. ft. of soil. Remove termite mud tubes connecting wood to the soil. Eliminate wood-to-soil contacts. Ventilate to keep un- excavated areas dry. Ticks (NHE-56) Brown dog tick, wood tick stirofos 50% W.P. malathion 50-57% E.C. Dilute to 0.5% with water Dilute to 2.5% with water Apply spray to lawns, fence rows, roadsides, and areas not regularly mowed. carbaryl malathion 5% dust 4% dust Dust pets directly as needed, according to label in- structions. Wasps (NHE-79) Hornets (NHE-17) Bees carbaryl diazinon dichlorvos dichlorvos 20% resin strip2 5% dust 5%G. 5% R.T.U. 1 strip per 1,000 cu. ft. Hang dichlorvos resin strips in attic to prevent in- festations. For nests below ground, apply diazinon according to label and seal the opening with soil. Spray above-ground wasp and hornet nests with dichlorvos. For bees, treat nests in partitions with carbaryl. Drill holes through the siding to inject in- secticide, if necessary. Remove nests and honey and destroy them. Treat nests at dusk or dawn. 1 Whenever possible purchase specially prepared ready-to-use forms of insecticides for indoor use. Use only one insecticide from those listed. When preparing a quantity of 1 gallon or more of a spray of a desired percentage, use the dilution table on page 8. You need to know only the formulation of the insecticide when using the dilution table. 2 Do not use in pet shops or if tropical fish are present. Do not use in kitchens, restaurants, or areas where food is present. Do not use in nurseries or rooms where infants, ill, or aged persons are confined. Do not use in hospitals or medical clinics. E.C. = emulsion concentrate; W.P. = wettable powder; R.T.U. = ready to use; G. = granules. (SEE THE PESTICIDE DILUTION TABLE ON PAGE 8) PESTICIDE DILUTION TABLE HOW TO USE: When preparing a spray of a desired percentage you need to know only the for- mulation of the particular product (examples: Kel- thane 18.5% wettable powder; Kelthane 18.5% emulsion concentrate). For instance, if you were preparing a 0.5% diazinon solution for spraying the foundation of the home, you would mix 5 tablespoons of diazinon 25% E.C. into each gal- lon of water. The formulations of insecticides in the table may be purchased from hardware stores, pest control establishments, lawn and garden centers, and other sources. For some jobs, such as spraying outdoors to control flies or mosquitoes, a gallon or more of properly diluted spray is re- quired. To obtain the percent concentration sug- gested for controlling a particular insect, add the amount of pesticide suggested in the table to one gallon of water. For control of household insects. Do not use this table for vegetable, flower, tree, shrub, or lawn insects. Amt. insecticide needed per gal. spray Pesticide formulation Desired concentration 0.03% 0.25% 0.5% 1.0% 2.5% carbaryl (Sevin) 50% W.P. chlordane45% E.C. chlordane 72% E.C. diazinon (Spectracide) 25% E.C. dicofol (Kelthane) 18.5% E.C. malathion 50-57% E.C. stirofos50%W.P. 2 tbsp. 4 tbsp. 8 tsp. 4 tsp. 8 tbsp. 5 tbsp. 8 tsp. 5 tbsp. 10 tbsp. lHtsp. 7 tsp. 4 tbsp. 4^ tbsp. 10 tbsp. (tbsp. = tablespoon; tsp. = teaspoon) Conversion Table for Small Quantities 1 level tablespoon = 3 level teaspoons 1 fluid ounce = 2 tablespoons 1 cup = 8 fluid ounces or 16 tablespoons 1 pint = 2 cups 1 quart = 2 pints or 32 fluid ounces 1 gallon = 4 quarts or 128 fluid ounces NAMES OF INSECTICIDES Below is a list of the common names of insecticides used in the preceding tables, followed by the commercial trade name and the chemical name. Some products may be available under a variety of trade names not listed below. Be sure to read the label. The label on the container always lists these products by the common name or chemical name. Chemical Name O, S-dimethyl acetylphosphoramidothioate 1-naphthyl methylcarbamate O, O-diethyl 0-(3,5,6-trichloro-2-pyridl) phosphorothioate N, N-diethyl-m-toluamide O, O-diethyl 0-(2-isopropyl-4-methyl-6-pyrimidyl) phosphorothioate 2,2-dichlorovinyl dimethyl phosphate 4,4'-dichloro-a-(tri = chloromethyl) benzhydrol O, O-dimethyl S-(N-Methyl carbamoyl methyl) phosphorodithioate 2-ethyl-l, 3-hexanediol diethyl mercaptosuccinate, S-ester with O, O-dimethyl phosphorothioate O-isopropoxyphenyl methyl carbamate 0,0,0,0-tetrapropyl dithiopyrophosphate principally from plant species Chrysanthemum cinariae folium (5-benzyl-3-furyl) methyl 2,2 dimethyl-3-(2-methylprophenyl) •yclopropanecarboxylate 0,0-dimethyl 0-2,4,5-trichlorophenyl phosphorothioate 2-chloro-l-(2,4,5,-trichlorophenyl) vinyl dimethyl phosphate Issued in furtheronce of Cooperative Extension Work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. JOHN B. CLAAR, Director, Cooperative Extension Service, University of Illinois at Urbcna-Champaign. The Illinois Cooperative Extension Service provides equal oppor- tunities in programs and employment. 30M— 11-78 — 42485— RES Common Name Trade Name acephate Orthene carbaryl Sevin rhlorpyrifos Dursban DEET Off, Kik diazinon Spectracide dichlorvos Vapona, DDVP dicofol Kelthane dimethoate DeFend, Cygon ethyl hexanediol 6-12, Rutgers 612 malathion Cythion propoxur Baygon propyl thiopyrophosphate Aspon pyrethrin resmethrin Chryson, SBP-13 ronnel Korlan stirofos Rabon UNIVERSITY OF ILLINOIS-URBANA Q 630.7IL6C C005 CIRCULAR URBANA, ILL 900 REV 1979 3 0112 019541264