FORT COLLINS — Researchers at Colorado State University will conduct federally sponsored tests of a Swiss company’s citrus-based insecticide to see if it’s effective against mosquitoes carrying the Zika virus.
The research is being sponsored by the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health. CSU researchers, working under NIAID’s preclinical services program, will test the repellency and insecticidal properties of nootkatone, an insecticide produced by Evolva (SIX: EVE), a company based in Reinach, Switzerland. Data from the studies will supplement Evolva’s research to fulfill Environmental Protection Agency requirements for the commercial launch of nootkatone in the United States.
Zika is one of a number of mosquito-borne viruses, which include both dengue and chikungunya, that are transmitted by two species of mosquito. The World Health Organization and the federal Centers for Disease Control and Prevention have declared the virus a public health emergency because it is associated with potentially severe neuropathogenic and neurodevelopmental conditions in humans.
CDC research already has shown that nootkatone repels and kills a mosquito that can transmit Zika and yellow fever, as well as the black-legged tick that transmits Lyme disease.
Evolva also produces the sweetener known as stevia. Nootkatone can be extracted in minute quantities from the skin of grapefruit or the bark of the Alaska yellow cedar, or produced on an industrial scale from brewing via yeast fermentation.