Egg parasitoids of Thaumetopoea pityocampa (Den & Schiff.) (Lepidoptera: Thaumetopoeidae) and natural effectiveness in Terzioğlu Campus (Çanakkale)

The study was conducted in the natural forest area in Terzioğlu campus of Çanakkale OnsekizMart University in 2018. The purpose of the study was to determine the natural effectiveness of the eggparasitoids of Thaumetopoea pityocampa (Den & Schiff.) on red pines. Eggs collected in September andOctober were transferred into glass tubes, then they were placed in a climate chamber with 24±1Cºtemperature and 60-70% r.h. Eggs were checked daily and emerged adults were transferred to new glasstubes to examine adult longevity. Total number of egg batches was 72 with a mean number of 250.27 eggson each batch, and parasitism rate of eggs was 18.16% (1.13%-97.32%) from a total of 18018 eggs. Ratioof the species were 26% Anastatus bifasciatus Geoffroy, 32% Baryscapus servadeii Geoffroy and 42%Ooencrytus pityocampae Mercet. In 24±1Cº tempreature and 60-70% r.h., adult longevities of O.pityocampae, B. servadeii and A. bifasciatus were determined as 18.77, 8.46 and 8.85 days, respectively.