Yesterday, I went to my outyard to check on the bees. One of my hives, which was transplanted from a nuc about 3 weeks ago and booming last Monday (the 15th) had a couple thousand chalkbrood mummies at the entrance, around the hive, and on the hive floor.
There weren't too many mummies in the combs.
Here's the scoop: The nuc was pretty ancient, and I'm guessing the comb was a few years old. Last week was really hot and perhaps a bit muggy--Monday's inspection was on a recordbreaking day of heat for the area (96).
That hive was the only of my three with a migratory cover. Luckily, I'd bought it a tele cover and Luan inner cover, so I put that on it yesterday after discovering the mess. I also pulled the tray out of the screened bottom board. This hive had had a solid reversible board (large side up) up until last Monday's inspection, don't know if that had anything to do with it.
We're expecting a bit of rain but temps in the 70s all week, no severe night temps.
So here we go:
1. Think the girls will be okay for about a week? (I won't see them until I get back from a trip...)
2. Do I really have to requeen? The bees seem to be doing a great job of cleaning up, and as it is, it's a brand new "hygenic" Carniolan queen whose progeny is only beginning to replace the Italians (nuc built third week in April).
3. Could spraying the new Piercos with sugar water/lemongrass oil have really upped the moisture level enough to set off the chalkbrood, or is this a non-issue?
4. Next week, even if there's improvement, should I cull the old comb from the original nuc?
Thanks in advance. I'm hoping this doesn't pop up in the other hive built from a nuc (same source).
[size="1"][ May 21, 2006, 06:41 PM: Message edited by: Lupine ][/size]