Cydalima perspectalis

Native to Japan, China, Taiwan, Korea, far-east Russia and India,[1] it has invaded Europe; first recorded in Germany in 2006, then Switzerland and the Netherlands in 2007, Great Britain in 2008, France and Austria in 2009,[2][3][4][5] Hungary in 2011,[6] then Romania,[7] and Spain.

[10] It was during preparations for the 2014 Winter Olympics in 2012, that it was introduced from Italy to Sochi, European Russia, with the planting stock of Buxus sempervirens.

There is some shrinkage at the beginning of the nymphosis, pupae are 25–30 mm long, first green with browning longitudinal lines, then more and more brownish.

In the area of origin (Asia) natural regulation occurs, as witnessed by the non-destructive behavior of C. perspectalis.

However, in European areas where the Asian hornet (Vespa velutina) is present prior to the introduction of C. perspectalis, some degree of predation by the wasp is observed (not confirmed by scientific and clear results).

kurstaki is a bacterium which produces an insect-specific endotoxin which perforates the caterpillars' gut lining, leading to paralysis and death.

[16] Insecticide, Bacillus and nematode treatments must be repeated three times at an interval of about ten days, because they mostly affect young larvae.

The species has become widespread in London and surrounding areas and has been ranked as a top garden pest in Great Britain.

Larval feeding damage - only the contour of the leaves and frass is left.
Vespa velutina ( Asian predatory wasp ) in active search of Cydalima perspectalis larvae on an infested box-tree bush.