chalkbrood

noun chalk·brood \ ˈchȯk-ˌbrüd \

Definition of chalkbrood

:a disease of honeybees that is fatal to developing larvae and is caused by a fungus (Ascophaera apis)
Note: Larva affected with chalkbrood become covered by a white, woolly growth and then harden to a chalky white to grayish-black mass.

First Known Use of chalkbrood

1974


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