Oak processionary moth
months. From the 5th instar on, the larvae start building silken nests at the base of lower branches, on the trunks or at the base of the trunks, which [...] and also in parts of the Middle East. Damage symptoms The nests of caterpillars on infested trees are clearly visible. The larvae of the oak processionary [...] reducing the viability of oak trees. However, this is usually less of a problem as the trees normally recover from this. More important is the health risk