The oak lace bug Corythucha arcuata was first discovered in Russia in Krasnodar in 2015.The first severe oak trees damage was revealed in the Krasnodar Krai in 2016.Since then, the spread of the C. arcuata has led to the fact that its population outbreaks have been observed in forests and landscaping with the participation of oak throughout from the Black coast to the coast of the Caspian Sea. Annually, the total area of damaged forests in Russia is about 1 million hectares. Chestnut-leaved oak Q. castaneifolia and pedunculate oak Q. robur are most severely damaged by C. arcuata, but the level of influence of such damage on the state of forests remains unknown.