Suitable alternatives to organophosphates are available for Western cherry fruit fly, says a U.S. Department of Agriculture scientist. But achieving complete control with the new chemistries is difficult. Western cherry fruit fly (Rhagoletis indifferens) is a quarantine pest for many sweet cherry growers. Certain markets, like California, have a zero tolerance for the pest in cherries shipped there. Though the pest is traditionally controlled with organophosphate and carbamate pesticides and preventative sprays, the industry is looking for reduced-risk alternatives. Dr. Wee Yee, entomologist at USDA’s Agricultural Research Service laboratory near Wapato, Washington, is testing bait sprays that will attract and […]