[Michael Bush]

What I DO know is that in a normal year (which this does not look like it will be) I don't see any until mid summer and then they multiply quickly. I assume the migrate from somewhere south or there are just a few that make it through the winter and it takes until them for them to get the population back up.

 

[Michael Bush]

The "climate" inside a beehive is not that cold.

 

[Michael Bush]

I don't have exact figures but a hard freeze usually kills them. If it hits 0 F or so overnight they seem to all die. If it's not that cold most of them still seem to die if it stays below freezing for a day or two.

 

[Michael Bush]

In my observation, wax moths can fly at temps where the bees are still clustered. In other words they can fly at colder temperatures than the bees. I don't know exactly how cold but I've seen them flying at 40 F or so when the bees weren't.

 

[Michael Bush]

I never see them THIS time of year, but I do see them in the fall during chilly weather flying when the bees won't.