Resmethrin/Scourge
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  New York City Department of Health



West Nile Virus
Pyrethroids: Resmethrin (Scourge)


Scourge is pyrethroid-based pesticide registered for use in mosquito control by the Environmental Protection Agency and New York State Department of Environmental Conservation. It is effective against adult mosquitoes, including the Culex species, which transmitted West Nile virus last year. It may be used to control mosquitoes in recreational and residential areas, including athletic fields, parks, golf courses and outside of apartment buildings.

Scourge is effective in controlling mosquitoes, and it is relatively nontoxic to humans, dogs, cats, and other mammals. Exposure to Scourge for some people may include skin irritations, headache, stuffy or runny nose, scratchy throat, or dizziness. These symptoms are unlikely at the low doses used. Scourge is similar to materials applied directly on dogs and cats for the control of fleas and ticks, without adversely affecting their health.

The active ingredient in Scourge is Resmethrin, a synthetic pesticide similar to a natural pesticide produced by chrysanthemum flowers. Resmethrin decomposes quickly in sunlight or when exposed to air. Scourge has low toxicity to humans.

Children or adults who have asthma or a respiratory condition should stay inside if spraying occurs. In addition, windows and doors should be closed and air conditioners should be shut off.

For more information about West Nile virus, call the New York City Department of Health West Nile Information Line, 24 hours a day, seven days a week, at (877) WNV-4NYC or (877) 968-4692.

April 2000

Every effort has been made to provide correct, complete and up-to-date pest management information for New York State in this publication. Changes in pesticide regulations thus occur constantly, and human errors are still possible. These recommendations are not a substitute for pesticide labeling. Before using any product, chemical, or pesticide, read carefully, understand, and follow strictly any instructions on the product label. The above information has been obtained from sources believed to be reliable. Neither the Fair Harbor Community Association nor any employee of FairHarbor.com has verified the correctness of any information contained herein.

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