Re: What to consider and when to act against SHB?
From what I have read, unless you live in the deep south where the shb is nearly a year round threat, treating the ground is too late.
From what I have personally experienced, traps, traps, and more traps. Even strong hives will have problems with beetles, if they have no place to which the bees can chase the beetles, and the beetles then die. For cost and ease of use, I decided against the hive bottom traps. I use the beetle jails or AJ's or variations thereof. Usually I start with two traps. If the hive is weak, or the beetles seem to be increasing for some reason, I'll add more. I ended up with 6 traps in one hive until the bees got the situation under control. Generally I run 3 to 4 traps in a hive.
For me the key is: The bees have to have a place to chase the beetles, and when the beetles get in there thinking they're safe, heh heh heh they drown in oil! If the bees do not have a place to chase the beetles to the demise of the shb, the bees will never win.
Also, keep your hive tool handy every time you open the hive. Usually a good opportunity to smash some. In a pinch, a thumb or finger works too. Very gratifying.
"If all you have is a hammer, the whole world is a nail." - A.H. Maslow