One of my hives is showing evidence of wax moth caterpillars on their bottom board insert. This is a strong hive with plenty of stores. Our winter has been very mild here so far and the temps are going to be highs in the 50's for the foreseeable future. Are the waxworms a big enough issue that I should open the hive on a nice day and take out any unoccupied frames, or, since this hive is pretty strong, should I just let it go until spring?
Wax moth will always raise on the insert when the weather allows it. Remove the insert and only have it in when the weather is too cold for moths.
ID, question, would removing a bottom insert allow to much air flow? I realize your area is much warmer than mine, so this time of year, I?m still thinking cold which is not so applicable to your area.
Blessings
Van, I don't use screen bottoms, but I have read beeks in Michigan using open screens all year. They say heat rises and cold falls. Just keep the wind blocked out. I can't answer further than that.
Sorry, I wasn't really clear enough on what I am seeing. I don't have wax moth caterpillars themselves on the BB insert, just evidence that they are up in the hive (feces, bits of comb, bits of silk, etc.). The cluster in this hive is at least partially in the top box (I'm overwintering in 2 mediums), and I suspect that the waxworms are hanging out in the bottom box under/away from the cluster.
About all you can do for that is spray all the frames with BT on a warmer day.
I'll probably just leave it go then. This hive is strong, so I'm not super concerned about it. Thanks for the replies everyone.