It's been a soggy, soggy, spring, and it looks like my one hive has chalkbrood. Dead black and white mummies on the veranda and on the bottom board. Is there anything I can do to help? (It is supposed to rain for the next 7 days... Argh!)
Sounds more like chill brood, where they clustered too tight to cover all the brood, so some died. Once cleared out, there shouldn't be any more problem. That is, if you have no more cold nights.
I think the old advice was to change out the queen. my current thinking in that some of these maladies are a combination of environmental factors, nutrition and genetics.
Thanks! I wish I could get in there to check the brood pattern. They say it might clear up this afternoon (fingers crossed.)