I know one thing that works to kill ants is get 20 mule team borax, and some jam. mix 1 scoop of borax to 10 of jam and mix it really good and let it sit out, or put smaller globs in different places. borax I believe also kills hive beetles too so yay I guess..... I used to mix piles of this in AZ to get rid of ants there. not sure how it effects bees though honestly, or if bees will be around your shed.