Abstract
This work summarizes all known data on the distributive history of Cameraria ohridella in Europe and in Russia with special reference to current process of invasion to different regions of Russia and prognosis on its future spread through Russian territories. The invasion of the pest started in 1980s and to the present time Cameraria ohridella had occupied the most part of Europe. During last ten years from 2010 to 2020, Cameraria ohridella occupied 11 oblasts of the European Russia and was discovered in Kyrgyzstan and Kazakhstan. The main host trees of the pest are trees from the genus Aesculus. However, in the focus locations of invasion, the pest damages other trees growing near chestnuts. The data on biology of Cameraria ohridella showing that its larvae as a rule perish within the first two instars in case of development for example on Acer pseudoplatanus trees, give us confidence that the distributive range of the pest is restricted to the area of chestnut and locations of its decorative use.
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