The U.S. Environmental Protection Agency is phasing out use of the organophosphate pesticide Guthion (azinphos-methyl) over a number of years to give growers time to learn how to use other, safer pesticides or alternative control methods and gain confidence in them. Bayer CropScience has voluntarily cancelled registrations of Guthion on all but ten crops. Use on nursery stock and Brusselsprouts will end on September 30 this year. Use on almonds, pistachios, and walnuts will end on October 30, 2009, and use on the remaining crops—apples, blueberries, cherries, pears, and parsley—will end on September 30, 2012. The EPA considers Guthion a […]