The Wax Moth and Bees
I often wondered why the bees would let the wax moth into their hive, so I did my homework. It turns out that the wax moth gives off a pheromone that clocks it, the scent is similar to that of the bee. Thus, they are able to just waltz into the hive unsuspected!
The weaker the hive, the more susceptible it is to being invaded by the moth. However, once you take note that the hive is weak, regular inspections are in order. If bees are lost, the best thing is to place them in a smaller space they can fully occupy. In this way, the bees can better survive!
One way to tell that the wax moth has invaded is by taking a good look at your bees' honeycomb. If you notice criss-crossing tunnel-like features on the comb it is the wax moth. The moth larva (worm) eats through the comb. Also, look for these worms and kill them on sight.
If you are trying to save the frame, take it out of the hive and shake off the bees. Afterwards, place the damaged frame/s in your freezer for 24 to 48 hours; the wax moth larva and eggs will be killed, along with the bee larva and eggs. After the allotted time, the frame/s can be placed back into the hive or, in a stronger hive. Have no fear, the stronger hive will clean up the dead out of each cell and quickly work on it.
The best way to protect your hives is to have stronger hives. For instance, keep your hives in such a way that they are flooded with bees. If there are not enough bees to cover all frames, take some frames out for the rainy season. Leave just enough frames in your hives so that they may be completely covered with bees. That is a strong hive, and the stronger the hive, the lesser the threat of invasion. And, last but not least, a smaller entrance can be better protected.
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