Hi all, unfortunately, I’ve found a bunch of SHB larvae in the tray under my Flow Hive 2 when I checked the tray a few days ago. As a first-year beekeeper who is already battling mites and recently had to replace a dead queen, this is freaking me out a bit!
I already have some diatomaceous earth, so I was thinking of using that in the tray as @Rodderick suggested above, but I’m wondering exactly how to go about it. Is it dangerous to just sprinkle a layer into the tray, as it might blow around on a windy day and kill my bees? I could get some construction paper and put a layer of glue and then spread the diatomaceous earth on it and shake off the excess, which is similar to this technique described here.
Has anyone here tried using diatomaceous earth to control SHB in the hive, and can suggest a good technique?
Any thoughts on whether diatomaceous earth would be more effective than putting oil in the tray (the Flow Hive 2 tray seems well designed for this, with pretty high walls on the tray).
If oil is a better approach, how deep a layer of oil should I use? Or should I get some of the SHB oil traps and just set them into the tray?