EPA Registers the Wolbachia ZAP Strain in Live Male Asian Tiger Mosquitoes

On November 3, 2017, the Environmental Protection Agency registered a new mosquito biopesticide – ZAP Males® – that can reduce local populations of the type of mosquito (Aedes albopictus, or Asian Tiger Mosquitoes) that can spread numerous diseases of significant human health concern, including the Zika virus.

ZAP Males® are live male mosquitoes that are infected with the ZAP strain, a particular strain of the Wolbachia bacterium. Infected males mate with females, which then produce offspring that do not survive. (Male mosquitoes do not bite people.) With continued releases of the ZAP Males®, local Aedes albopictus populations decrease. Wolbachia are naturally occurring bacteria commonly found in most insect species.

This time-limited registration allows MosquitoMate, Inc. to sell the Wolbachia-infected male mosquitoes for five years in the District of Columbia and the following states: California, Connecticut, Delaware, Illinois, Indiana, Kentucky, Massachusetts, Maine, Maryland, Missouri, New Hampshire, New Jersey, Nevada, New York, Ohio, Pennsylvania, Rhode Island, Tennessee, Vermont, and West Virginia. Before the ZAP Males® can be used in each of those jurisdictions, it must be registered in the state or district.

When the five-year time limit ends, the registration will expire unless the registrant requests further action from EPA.

EPA’s risk assessments, along with the pesticide labeling, EPA’s response to public comments on the Notice of Receipt, and the proposed registration decision, can be found on www.regulations.gov under docket number EPA-HQ-OPP-2016-0205.

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