Biological control of gypsy moth ( Lymantria dispar ) was carried out in 2021 the field protective forest belts at territory State Hunting Enterprise Balchik by introducing entomopathogenic fungus Entomophaga maimaiga (Entomophthorales: Entomophthoraceae). In same year a mortality rate 26.1% pest population registered. 2022 E. and multiple nuclear polyhedrosis virus L Ld MNPV) caused collapse r...