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Dioryctria sylvestrella is a pest that causes significant damage on the brutian pine forests of the Lake’s District, plantation sites. The morphology of this insect, the damage it caused under the field conditions in the forests of the Lake’s District, and its biology were explored while its natural enemies that were effective on the population were determined. They were found mainly on the lower parts of the tree trunks and led to the intensive release of resin. It was observed to have one generation in a year. The larval development of the insects took about eleven months and thus they overwintered as larvae. Starting from the mid-May, the pupae develop inside the resin released and the pupal development took three weeks, the adults flew throughout June depending on the elevation and the climatic conditions. The young larvae emerged from the eggs in late June. The larvae were observed to start feeding first on the barks of the trunk. Throughout this study. Forficula auricularia (Dermaptera: Forficulidae) and Raphidia ophiopsis (Raphidioptera: Raphidiidae) fed with the larvae of D. sylvestrella were observed as the predatory species. As larval and pupal parasitoid, Brachymeria tibialis (Hymenoptera: Chalcididae) and Venturia robusta (Hymenoptera: Ichneumonidae) were determined. All of these predatory species and parasitoids were recorded for the first time in Turkey as the natural enemy of D. sylvestrella.

Reçine kelebeği Dioryctria sylvestrella (Ratzeburg) (Lepidoptera: Pyralidae)’nın Göller Bölgesi ormanlarında zararı, biyolojisi ve doğal düşmanları