Durvet Screw Worm Aerosol

Durvet Screw Worm Aerosol

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Product Overview

Durvet Screw Worm Aerosol is a screw worm and ear tick spray that can control pests for as long as four weeks. It also controls horse flies, stable flies, face flies, deer flies, house flies, horn flies, gnats, and mosquitoes. It can be used on wounds to kill maggots and flies, or as a premise spray in animal quarter, poultry houses, and milk rooms.

Features and Specs

Active Ingredient Permethrin - 0.5%
Target pests Stable flies, horse flies, deer flies, face flies, house flies, horn flies, mosquitoes, ticks, and gnats. For use on wounds to kill flies and maggots.
For use in Beef and dairy cattle, sheep, goats, swine and horses; as well as in animal quarters and milk rooms, and poultry houses.
Application Spray about 3 seconds on each side being careful to spray back, withers and forelegs thoroughly. Do not spray into eyes. Repeat treatment when flies are troublesome. For ear ticks, spray directly into the ear.
Pet safe Yes, if used as directed on the label.
Formulation Liquid Formula.
Dimensions 2.60 x 2.60 x 8.00 inches.
Sprayer Type Aerosol
Special Features Controls pests for up to four weeks.
Shipping Weight 1.00 lbs
Manufacturer Durvet Inc (Mfg. Number: 13840184)
UPC 745801334007
EPA Registration 47000-100-12281



This product is extremely toxic to aquatic organisms, including fish and invertebrates. To protect the environment, do not allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters. Applying this product in calm weather when rain is not predicted for the next 24 hours will help ensure that wind or rain does not blow wash pesticide off the treatment area. Rinsing application equipment over the treated area will help avoid run off to water bodies or drainage systems.

This product is highly toxic to bees exposed to direct treatment on blooming crops or weeds. Do not apply this product or allow it to drift to blooming crops or weeds while bees are actively visiting the treatment area.


It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

READ THIS LABEL: Read this entire label and follow all use directions, use restrictions and precautions.


  • Do not breathe dust, vapors or spray mist.
  • Do not apply when food is present.
  • When used in dairy barns and facilities: Close milk bulk tank lids to prevent contamination from spray and from dead or fallen insects. Remove or cover milking utensils before application. Wash teats of animals before milking.
  • When applying as a space spray, remove people and pets from the area before spraying. Except when applying to pets or livestock, do not enter or allow others to enter until sprays have dried.


Remove protective cap, hold container upright and spray from a distance of 12 to 15 inches.

IN ANIMAL QUARTERS AND MILK ROOMS: For rapid control of House Flies, Mosquitoes, Gnats, Wasps, Bees, and Small Flying Moths. Remove animals prior to treatment, close windows and doors and spray at the rate of 2 seconds per 1000 cubic feet of space. For best results, keep area closed for 10 minutes after spraying. Do not remain in treated area and ventilate after treatment is completed.

TO TREAT LIVESTOCK: To protect beef cattle, dairy cattle, goats, sheep, hogs and horses from attacks of Stable Flies, Horse Flies, Deer Flies, Face Flies, House Flies, Horn Flies, Mosquitoes, Tick and Gnats: Spray about 3 seconds on each side being careful to spray back, withers and forelegs thoroughly. To protect from Face Flies, spray the face and head, but do not spray into eyes. Repeat treatment when flies are troublesome. For ear ticks spray directly into ear.

WOUND SPRAY AND TO KILL SCREW WORMS, FLIES, AND MAGGOTS INFESTING BEEF CATTLE, HORSES AND SHEEP: Hold can about 4 to 8 inches from the area to be treated with muzzled pointed at wound. Spray the area until it is completely wet (3 to 10 seconds are usually enough). The area surrounding the wound should also be sprayed. This product is not recommended for use in deep wounds.

Note on Resistance: Some strains of screw worm may develop resistance to pyrethroids. This will be observed by lack of response to treatment. Where pyrethroid resistance is known or suspected, this product should not be used.

FOR SWINE: Do not ship animals for slaughter within 5 days of last treatment.

TO CONTROL BLOOD SUCKING LICE: Apply to the infested areas of the animals, using a stiff brush to get the spray to the base of the hair. Repeat every three weeks if required.

TO CONTROL POULTRY LICE: Spray roosts, walls and nests or the cages thoroughly. This should be followed by spraying over the birds with a fine mist.

FOR CONTROL OF BEDBUGS AND MITES IN POULTRY HOUSES: Spray crevices of roost poles, cracks in walls and cracks in nests where the bedbugs and mites hide.

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