Hey Walter:


Both statements are correct.

For AFB and milk test, please check http://www.ars.usda.gov/is/np/honeybeediseases/honeybeediseases.pdf
Page 10 or 12

Holst milk test. The Holst milk test (Holst 1946) is a simple test based on
the high level of proteolytic enzymes produced by sporulating P. larvae.
The test is conducted by suspending a suspect scale or a smear of a
diseased larva in a tube containing 3 to 4 ml of 1-percent powdered skim
milk in water. The tube is then incubated at 37o C. If AFB is present, the
suspension should clear in 10 to 20 minutes. It should be noted that this
test is not always reliable.




Stress and EFB:

This one is somehow correct; stress means weak, no good queen and EF spores are around. Mostly EFB happens when bees placed in blueberry fields for  pollination. It could be due to scare sources of pollen. However we don’t know cause and effect.

Medhat


Dr. Medhat Nasr
Alberta Provincial Apiculturist
Pest Surveillance Branch
Crop Research and Extension
Agriculture and Rural Development
17507 Fort Road NW
Edmonton, AB T5Y 6H3 Canada
Tel: 780-415-2314<tel:780-415-2314>             Fax: 780-422- 6096
E-mail:  [log in to unmask]<mailto:[log in to unmask]>

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