Entomopathogenic Microorganisms in the Foci of Gypsy Moth (Lymantria dispar L.) in Nut-Fruit Forests of the Southern Kyrgyzstan
V. P. Khodyrev, Z. A. Teshebaeva, B. A. Toktoraliev, S. A. Bakhvalov
Keywords: Lymаntria dispar, nuclear polyhedrosis virus, Bacillus thuringiensis, аbundance, virulence
Pages: 701-707
Abstract
Under the conditions of nut-fruit forests of the Southern Kyrgyzstan, an essential agent of the biological control of gypsy moth caterpillars (Lymantria dispar L.) is the nucleopolyhedrovirus. During the years 2005-2007, a half of all the deaths of caterpillars was of virus aetiology. At the same time, the death rate due to Bacillus thuringiensis infection was 31,2 % as an average, due to fungi and mixed bacteria-virus infections - equal to approximately 20 %. It was revealed that the virulence of Central Asian strains of nucleopolyhedrovirus is higher than that of west Siberian strains.
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