Growers have plenty of insecticides to choose from for controlling the key apple pests codling moth and leafrollers. Including two new pesticides that will be registered next year, there are nine alternatives to organophosphates for controlling codling moth and eight for controlling leafrollers. Five of those products control both pests, reports Dr. Jay Brunner, director of Washington State University’s Tree Fruit Research and Extension Center in Wenatchee. The new pesticides that will be registered for use in 2008 are Altacor (rynaxypyr) and Delegate (spinetoram). Rynaxypyr is from a new chemical class that affects the muscles of the pest. It is […]