Obliquebanded leafroller larva Ontario Ministry of Agriculture Tart cherry growers need to use a modern, effective insecticide to control obliquebanded leafroller about two weeks before ­harvest—or risk delivering a contaminated crop that may be rejected by the processor. That’s the advice of Dr. Nikki Rothwell, the entomologist who coordinates activities at the Northwest Michigan Horticultural Research Station northwest of Traverse City, Michigan, the heart of the nation’s tart cherry production region. Obliquebanded leafrollers don’t feed on cherry fruit, as they do on apples, nor do larvae develop inside the fruit, as do cherry fruit flies, she said. They do some […]