David Owens, Extension Entomologist, owensd@udel.edu
Congratulations to Leah Fronk for correctly identifying certain fungicides as the culprit for the apple russeting. Leah will be entered for an end-of-year drawing for a jar of local honey and a scouting kit.
This from Dr. Gordon Johnson:
On apples, copper applied between half-inch green and bloom usually causes fruit russeting. This is variety and copper formulation dependent. Avoid copper fungicides during bloom and choose varieties that are less prone to russeting when possible.
