Permectrin II is Elanco's 10% permethrin emulsifiable insecticide for farm premises and for use on beef and dairy cattle, horses, swine, sheep, poultry and dogs (not cats). EPA Reg. No. 11556-166. Premise spray mix is typically 1⅓ fl oz per gallon of water. Available here in 8 oz and quart concentrate sizes.
| Product | Permectrin® II Emulsifiable Animal and Premises Spray |
|---|---|
| Manufacturer | Elanco US Inc., Greenfield, Indiana |
| EPA Reg. No. | 11556-166 |
| Active ingredient | Permethrin 10.0% (Group 3A insecticide); contains petroleum distillates; 0.75 lb permethrin per gallon |
| Signal word | WARNING |
| Do not use on | Cats. Do not use on dogs under 12 weeks old. |
| Premise spray dilution | 1⅓ fl oz (40 mL) per gallon of water; or 8 fl oz in 6.25 gal; or 1 qt in 25 gal. Spray surfaces to runoff at about 1 gal per 750 sq ft. |
| Sizes on this page | 8 fl oz and 1 quart concentrate |
Permectrin II is a concentrate you mix with water (or, for some uses, oil) and spray on farm buildings and on labeled livestock and dogs. The EPA-accepted label describes up to 30-day residual effects when used as directed. Target pests on premises include house flies, stable flies, lesser house flies and other manure-breeding flies, fleas, lice, mites and ticks including deer ticks. The label also says it aids in control of cockroaches, mosquitoes and spiders.
For fly control around barns, many operations combine premise sprays with baits such as QuikStrike Fly Bait, space sprays such as FlyRID Plus, or metered aerosols such as Country Vet Metered Mosquito & Fly Spray. Use each product only as its own label directs.
| Mix | Water | How to apply |
|---|---|---|
| 1⅓ fl oz (40 mL) | 1 gallon | Spray surfaces to runoff; about 1 gal spray per 750 sq ft |
| 8 fl oz | 6.25 gallons | Same |
| 1 quart | 25 gallons | Same |
Mist blower: undiluted at 4 fl oz per 1,000 sq ft. Power fogger: same 1 qt/25 gal (or 1⅓ oz/gal) dilution at 4 fl oz per 1,000 sq ft. Footnote on the label: 1 fl oz = 2 tablespoons = 30 mL.
| Use | Dilution | Notes |
|---|---|---|
| Mange mites | 1 fl oz in 3 gal water (or 8 oz/25 gal; 1 qt/100 gal) | Spray or dip; retreat after 14 days; clean premises; do not reapply for 2 weeks |
| Blow flies, mosquitoes, hog lice, fleas, ticks (incl. deer ticks) | Same 1 oz/3 gal rate | Spray, paint or dip about 1 pint per dog, pig or sheep, especially around ears; do not reapply for 2 weeks |
| Poultry mites | 2 fl oz in 3 gal (or 8 oz/12.5 gal; 1 qt/50 gal) | ½ fl oz spray per bird or 1 gal per 100 birds toward vent; spray cages |
Cattle and horse rates (backrubber, high-pressure spray, hand spray, spot treatment) are on the full label; follow the chart for the method you use.
Permethrin 10.0%. The label also notes petroleum distillates and 0.75 lb permethrin per gallon.
No. The label says DO NOT USE ON CATS.
Yes, for dogs on the swine/sheep/poultry/dogs chart, but not on dogs under 12 weeks old. Follow the dilution and the 2-week reapplication interval.
For premises spray: 1⅓ fl oz (40 mL) per gallon of water (or 8 oz in 6.25 gal; 1 qt in 25 gal). Spray surfaces to runoff using about 1 gallon of spray per 750 sq ft.
Yes. Premise and animal charts list ticks, including deer ticks (carriers of Lyme disease), among the target pests when used as directed.
Yes. Premise targets include house flies, stable flies, lesser house flies and other manure-breeding flies. Sanitation and manure management should accompany sprays.
The label requires coveralls over a short-sleeved shirt and short pants, chemical-resistant footwear plus socks, chemical-resistant gloves, and additional gear for mixers/loaders, dips and certain fog/mist uses, including a NIOSH-approved particulate respirator. Read the full PPE list before mixing.
For the dog uses on the label, do not reapply the product for 2 weeks.
Do not ship swine for slaughter within 5 days of last treatment.
This page offers 8 fl oz and quart concentrate options.
The label allows certain commercial animal-premise automatic misting systems with strict conditions, and says it is not for use in outdoor residential misting systems. Read that section carefully before any misting use.
WARNING. Causes skin irritation; harmful if inhaled; contains petroleum distillates.
This page summarizes the manufacturer's EPA-accepted label and published product information. It is a violation of federal law to use a pesticide in a manner inconsistent with its labeling. Always read and follow the label on the product you receive.
| Directions | Directions (EPA label summary)Premise spray: Mix 1⅓ fl oz (40 mL) Permectrin II per gallon of water. Spray surfaces to runoff at about 1 gal per 750 sq ft. Mist blower: undiluted at 4 fl oz per 1,000 sq ft. Dogs / swine / sheep (fleas, ticks, lice, etc.): Mix 1 fl oz in 3 gallons of water. Spray, paint or dip about 1 pint per animal, especially around ears. Do not reapply for 2 weeks. Do not use on dogs under 12 weeks. Do not use on cats. Mange mites: Same dilution; spray or dip; retreat after 14 days; clean walls/floors and replace bedding. Read the full EPA-accepted label for cattle, horse, poultry and misting-system directions, PPE and environmental hazards. It is a violation of federal law to use this product inconsistently with its labeling. |
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