walnut husk maggot
WHAT KIND OF SPRAY DO I NEED TO CONTROL THE FLY. WHEN ?
Linn County Oregon
Putting up yellow sticky boards, the more the better is a good deterrent. The catching of the adults also tells when to spray for the WHF.
Sprays - neem oil, permethrin and spinosads work.
Info on the walnut husk fly (WHF)