Ideas for dealing with Rose Chafers
Possibly due to the mild spring this year, we have had a bumper crop of Rose Chafers this year. They are attacking every flower, vegetable, and fruit plants we have. They are skeletonizing leaves as well as feeding on unripe fruit such as blueberries, strawberries etc. I have been trying to control using organic methods such as insecticidal soap, neem, and row cover but these methods aren't even putting a dent in them as there are so many this year. I have sunny, sandy conditions which are preferred by them, and they have always been here, but not like this year. They do not appear to have any predators, and birds find them poisonous.
In Ontario where I live, chemical pesticides are banned and are not an option.
Does anyone have any suggestions? I've seen advertisements for lures in white traps for Japanese beatles. Has anyone tried these or have any better ideas?