Here in the north, are there any chances that SHB in the ground, will hatch out in spring? Or do they always pupate and then enter the hives for winter? Coming out of winter, are all the SHB you see the only ones to make it?
If you were to go frame by frame, and kill as many SHB as possible first thing in the spring, would any future SHB come from missed SHB that over wintered and propagated, or would new beetles be hatching out from the ground and re-infesting the hives?
Thank you.