YorkshireNewbee · Yorkshire, UK · Pests & Disease · Jun 2, 2026
Found chalkbrood mummies on the landing board — what now?
Five or six little white mummies on the landing board this morning, looks like classic chalkbrood. Hive is otherwise active, bringing in pollen, queen laying.
Do I just monitor or is there something to actually do?
#chalkbrood#disease
▲ 17 votes
💬 3 replies
✅ Solved
ImkerinLena · Jun 2, 2026 · ✅ Accepted answer
Chalkbrood is opportunistic — usually shows up in damp / cold / stressed colonies. Strong colonies clear it themselves. Things you can do: improve ventilation, requeen with hygienic stock at next opportunity, avoid moving sealed brood between hives.
VTBeeHannah · Jun 2, 2026
Mine had chalkbrood last spring, by midsummer it was gone with no treatment. Just stayed on top of inspections and made sure they had room.
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