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Infestation and distribution of the mite Varroa destructor in colonies of africanized bees

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Author(s): Moretto G. | Leonidas J. de M.

Journal: Brazilian Journal of Biology
ISSN 1519-6984

Volume: 63;
Issue: 1;
Start page: 83;
Date: 2003;
Original page

Keywords: Varroa destructor | Africanized bees | tolerance | infestation | distribution

ABSTRACT
Whereas in several parts of the world varroa is the major pest affecting apiculture, in others the parasite is unknown to many beekeepers because its damage to bees is minor. The impact of the mite Varroa destructor is related to the climatic conditions and the races of Apis mellifera bees in each region where the pest exists. In the present study, the current level of infestation by the mite was assessed to determine the evolution of the pest in Africanized bee colonies in Southern Brazil. This level of infestation was considered low: approximately two mites per one hundred adult bees. This result is similar to that obtained for the same apiary almost five years ago and for others distributed in various regions of Brazil. In the present study, we also estimated the total varroa population and its distribution among brood and adults in each bee colony.
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