Research and answer the following questions:
  • Describe the pest/disease/problem.
  • What is the cause?
  • What are the symptoms?
  • What damage will occur to the hive? (What should we look for?)
  • What can we do to control / fix this problem?
  • What can be done to prevent this problem from occuring?

What Is It?
American Foulbrood is a small bacterium that is only visibale under a high powered microscope. It gets in the bee larvae system and takes their nutrition and the bees die of lack of food.
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The Cause
The Foulbrood gets into the larvae by them ingesting small spores of the bacterium. The spores germanate( spread) in the bees gut.
The Symtoms
  • 'Pepper Pot' brood pattern
  • Darkened Cell Cappings
  • Ropeing/Sticky larvae remains
  • Dark scales that are hard to remove from the cells
  • external image AFB.gif

What Will Happen To the Hive

The hive will start to break down due lack of resources then robber bees will steal there remaining resouces and the bees will die off.

How to Stop It

You cant really stop it if this happens to your hive you have to burn the frames wih AFB or the whole hive.
Also if your hive has AFB you should bury your hive.
In addition if your hive has AFB you should contact the state apiarist
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Michael G. Hansen
State Apiarist
MI Dept. of Agriculture
Pesticide & Platn Pest Mgmt. Div.
4032 M-130
Building 116
St. Joseph, MI 49085
(269) 428-2575
(269) 429-1007

How to Find It
If you shine a black light over your hive the foulbrood will glow a greenish blue color.
Ropy slimy larvae remains are in the cells and you pull it out with a tooth pick or end of a match.
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external image AFB-under-Blacklight.png
How to Prevent AFB
By changing old honeycombs and replacing it with a new foundation every 2 or 3 years. Keep your hive clean. Check for ropey/slimy larvae remains in the honeycombs.

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