Oak processionary moth
during the day leaving at night in a characteristic procession to feed in the canopy of the trees. If the leaves on a tree become scarce, the larvae move [...] General The oak processionary moth ( Thaumetopoea processionea ), is a major pest of oak in many European countries. The common and scientific names of [...] defoliation, 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