Re: Small Hive Beetle Nematodes
Vigilance is the key. Don't let your guard down. They are stealthy little buggers. Nematodes are another tool to keep the population from getting out of control.
The eggs hatch and the larval stage takes place inside the hive. The damage is being done by excrement left behind by the larvae. They crawl towards light to leave the hive in order to pupate. When it reaches adulthood it flies into the nearest hive. If they can be killed before reaching adulthood, that has to help. It's easy to see how abandoned hives can cause the problem to get worse. Managed or wild.
Anything we can do from smashing them with a hive tool to nematodes in the ground seems like a good idea to me.
I don't think anyone knows exactly when or how they got here, only from where they originated. They could have gotten here by way of some rotten fruit but, I bet there wasn't very many of them.
Ten years of Beekeeping before varroa. Started again spring of 2014.