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Contemporary Problems of Ecology

2010 year, number 5

Dominant Species of Entomogenous Anamorphic Ascomycetes in West Siberia, the Primorye Territory and Kyrgyzstan

G. P. Polovinko, O. N. Yaroslavtseva, Z. A. Teshebaeva, V. Y. Kryukov
Keywords: anаmorphic ascomycetes, host insects, Beauveria bassianа, pathogenicity
Pages: 709-716

Abstract

The microbiota of dead insects was studied in West Siberia, the Primorye Territory, and Kyrgyzstan. The anаmorphic ascomycetes of 13 genera were revealed. The fungus Beauveria bassianа (Bals.-Criv.) Vuill. was dominating in all the regions: it accounted for 68 % of all investigated isolates as an average. Insects of 7 orders and 32 families with the domination of Coleoptera, Lepidoptera and Hemiptera were found among the fungus hosts. Tolypocladium inflatum Gams (mainly on Lepidoptera), Metarhizium anisopliae (Metschn.) Sorokin (at Coleoptera) were found as the rare entomopathogenic fungi. The insect mortality from micromycetes was mostly observed on an enzootic level. The investigation of the pathogenic properties of dominаnt species B. bassianа demonstrated the absence of the specificity of B. bassiana natural isolates against a number of the representatives of Orthoptera, Lepidoptera, Coleoptera and Diptera.