Acaricidal activity of the fungus fomitopsis officionalis in varroatosis of the honey bees

UT Research Journal. Natural Resource Use and Ecology


Release:

Bulletin of Tyumen State University. Medico-Biological Sciences (№6). 2013

Title: 
Acaricidal activity of the fungus fomitopsis officionalis in varroatosis of the honey bees


About the author:

Fania H. Betlyaeva, Сand. Sci. (Biol.), Associate Professor, Department of Zoology and Evolutional Ecology, Tyumen State University; fania.betlyaeva@mail.ru

Abstract:

Evaluation of the acaricidal activity of the fungus Fomitopsis officionalis was carried out on bees of Central Russian breed. In the laboratory, the effect of four doses of the fungus Fomitopsis officionalis on the mite Varroa destructor and worker bees was studied. Each dose was studied in triplicate. The control groups of bees were infested with Varroa destructor, though not exposed to the tested acaricide. We established a relatively rapid effect of the aerosols of the fungus Fomitopsis officionalis on the population of the mite Varroa destructor, parasitizing on adult bees. Within four hours after the application of the acaricide a significant reduction in the number of ectoparasites on the bees was noted at doses of 3 grams/ per application, 4 grams/per application (P ≤ 0,05). An increased dose of 5 grams of acaricide/ per application has significantly reduced the number of mites on the bees within one hour after the application (Р ≤ 0,01). When using the fungus Fomitopsis officionalis in the bee families it is necessary to keep the bees in the beehives with removable bottoms and under-frame mite-nets.

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