Strain Bacillus thuringiensis Isolated During Larch Fly (Hylemyia laricicola Karl) Epizootic in the Kamchatka District
O. F. VYATCHINA
Abstract
The present article describes the results of investigations of Bacillus thurungiensis. They circulate in natural epizootic Lasiomma laricicola Karl. which was discovered in the Kamchatka region. Ten strains of crystal-forming bacteria were isolated and identified. Different subspecies circulate in the population of Lasiomma laricicola Karl.: ssp. thuringiensis, ssp. kurstaki, ssp. alesti, ssp. dendrolimus. The investigated cultures except the strain of ssp. dendrolimus differ by motley antidenic structure. Itraspecific antagonism of strains was discovered.
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