Cherry Tree Fruit Fly
Cherry fruit fly usually emerges around Memorial Day, so that is when to start your sprays and continue until harvest is complete.
How often would I need to spray?
The first few years we didn't have trouble with fruitflys, I was wondering if we spray this year that they might not return next year.
Cherry fruit flies emerge every year, and need to be sprayed for from around Memorial Day until harvest at 7 day intervals.