Specialists of the Institute of Taxonomy and Ecology of Animals (Siberian Branch, Russian Academy of Sciences) investigate peculiarities of struggle against Asian populations of Gipsy moth – one of the most widespread and economically significant forest pests. The methods applied in the North America and Europe do not work with Asian populations of the vermin. In Siberia, the climate is different, other tree species grow in the region and Gipsy moth is slightly different.
In recent years, outbursts of mass gipsy moth propagation have taken place more frequently and the vermin persistently expand their area. The reasons of this phenomenon are not clear but are probably connected to climate fluctuation. However that may be, the researchers have to fight back. Biological war is one of the most efficient and ecologically safe methods for Gipsy moth quantity control. Hotbeds of vermin propagation are sprayed by suspension of virus, but Asian Gipsy moths are very mobile, and females are capable of active flying. Therefore, the insects simply escape from the lesion focus.
The researchers worked in the territory of West-Siberian plain: in the Novosibirsk and Tumen Regions, Altai Territory and Eastern Kazakhstan. In these areas, Gipsy moths primarily feed on birch-tree leaves. Scarce birch-tree forests cover no more than 15 percent of the territory, the rest of the land is occupied by tillage, meadows and lakes. The Gipsy moth grain layings were processed by Virin-NSh viral preparation produced by the Institute of Taxonomy and Ecology of Animals (Siberian Branch, Russian Academy of Sciences).
Sergey Komarov | alfa
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