Detecting American Foulbrood with a Blacklight: UPDATE

by Katie Lee
American Foulbrood scale
The view of this picture where someone is holding the top of the frame and looking down into the bottom of the cells. You can see AFB scales all over in this picture - they are the dark, flat shapes on the bottom of the cells.

For clarification, using a blacklight is supposed to help you see if there are AFB scales in the bottom of a cell. The blacklight will make other things made of protien glow as well, so always double check that what you are seeing is a scale and not shaped like something else. An AFB scale should only be on the bottom of a cell (see picture). Be sure to look at the comb under a normal light as well, and if you are still not sure then ask or you can even send in a picture!

American Foulbrood scale
The view of this picture where someone is holding the top of the frame and looking down into the bottom of the cells. You can see AFB scales all over in this picture – they are the dark, flat shapes on the bottom of the cells.
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