Effects of spore introduction and ratio of adult bees to brood on chalkbrood disease in honeybee colonies

publication date: Jun 21, 2011
Send a summary of this page to someone via email.
Journal of Apicultural Research
Vol. 26 (3) pp. 191-195
Date
September 1987
Article Title

Effects of spore introduction and ratio of adult bees to brood on chalkbrood disease in honeybee colonies 

Author(s)

J P. Koenig, G. Mallory Boush And E. H. Erickson, Jr.

Abstract

Three groups of honeybee (Apis mellifera) colonies established on comb foundation were subjected to one of the following: (a) inoculation of the broodnest with a suspension of chalkbrood spores, (b) removal of some of the workers to decrease the ratio of adults to brood, (c) a combination of the two, while a fourth group served as untreated controls. All groups of treated colonies had significantly higher levels of chalkbrood than control colonies. The results indicated that at least two factors contribute to the development of chalkbrood disease in honeybee colonies: increased availability of the pathogen Asrosphaera apis, and a decrease in the ratio of adult bees to brood.

Keywords

chalkbrood, Ascosphaera apis, Bee diseases, Colony size

Full text
pdf
Free to Subcribers button     Buy Now for £5 button