of honeybees is the most common brood disease found in most areas.
Caused by the fungus Ascosphaera apis. Chalkbrood is most common in
colonies which are stressed by factors such as humid weather, low
colony population, American foulbrood, or mite infestation, poor
nutrition, and poor hive management.
very limited, there are no medications. Best treatment consists of
dealing with stress factors that the colony is dealing with.
behavior of the workers is maybe only second or third to good
ventilation and hive population, to resist chalkbrood.
extremes (cold clustering and heat fanning), the brood may be left
unattended, especially when nurse bee numbers become insufficient to
attend to duties. Most often the first larvae affected are those
that may be unattended regularly around the edges of the brood where
the brood temperature may not be consistent.
Destroy chalkbrood and
American foulbrood contaminated
Add bees to
Provide extra good
ventilation to remove humidity and minimize temperature extremes,
this to will strengthen hives.