The gypsy moth is a quarantine pest capable of causing significant damage to forest plantations. It prefers deciduous trees, especially birch and aspen. Its spread is facilitated by warm winters and transportation through logs and timber materials.

      Its life cycle consists of four main stages: egg, larva (caterpillar), pupa, and imago (adult moth). Females lay eggs in clusters on tree bark and other surfaces, which helps their survival in unfavorable conditions. Caterpillars are the primary pests, actively feeding on tree leaves for 6-8 weeks while passing through 5-6 developmental stages.

     Pupation and the emergence of adult moths start in early July and finish by late July – early August. Full development requires 900-1000°C (effective temperature above +5°C) or 600-700°C (effective temperature above +10°C).

     After the adult moths emerge (July–August), a new life cycle begins. The species overwinters in the egg stage. It is resistant to cold temperatures and harsh conditions. In northern regions of Kazakhstan, one generation per year develops.

Denisovsky district branch Republican State Institution «Republican Methodological Center for Phytosanitary Diagnostics and Forecasts» Committee of State Inspection in the agro-industrial complex of the Ministry of Agriculture of the Republic of Kazakhstan

Source : https://www.gov.kz/memleket/entities/kostanai-denisov-audany-akimat/press/news/details/970455?lang=kk