Despite being sub tropical my hives are located in a spot that gets light frosts in the winter which I think assists with their control but they really get going in the summer. They are also doing well in my worm farms.
Good luck with your SHB control.
I wonder if the snows and below freezing weather we've had here in the south this year will have any effect on out SHB populations this coming year? I sure hope so...
Freezing weather will not kill all beetles in Norhern Vermont.
BEE HAPPY Jim 134