Re: Northern Expanding Range of the SHB??
I first noticed SHB about six years ago. To date they have only been a minor nuisance, I have as yet to see any damage form them. Their populations stay very low, doing a little research on them I think the climate has much to do with the populations staying low. The pupa need to leave the hive and burrow into the ground to finish the gestation cycle. Below 70 degrees soil temperature their mortality rate jumps to 50% below 50 degrees itís near 100%. That covers about six to seven months in my area. This factor alone will limit how many reproductive cycles they have in a season. The bees keep the smaller numbers corralled enough to manage them. So far I havenít seen any damage even in weak colonies. Unlike beekeepers in southern areas they can keep reproducing virtually year round.
The Busy Bee teaches two lessons: One is not to be idle and the other is not to get stung.