was at a friend's place yesterday and his red raspberries are being devastated by what I assume to be the SWD.....they really love the red raspberries.
I have some GF 120 NF fruit fly bait......if any of you live in the Seattle area or within 30 miles north and want to try some, email me email@example.com
and I can probably accomodate....
Is it 100% effective on the raspberries? No. For complete protection for a backyard, think about netting. Traps are somewhat effective. Spinosad and GF 120 are somewhat effective, though, for a good percentage control for the backyard grower. (Only use in evening after bees inactive).
But commercial berry growers are basically consigned to using synthetic pesticides at the present time.....the commercial guys have to have 100% protection against this pest and the SWD seems to be out in numbers again this year.
Backyard blueberry growers need to be prepared, imo, for what lies ahead.