Posted 10/1/2006 09:16 (#48005 - in reply to #47489) Subject: RE: Fly free date for winter wheat in Nebraska
Central Missouri
The fly free date is the average date of the first killing frost in your area. In my understanding it doesn't really have much to do with the presence or absence of the fly. If it hasn't frozen hard by your fly-free date you still have the possibility of fly problems.