Türkiye Entomoloji Bülteni

Yazarlar: Aslıhan YOĞURTÇU, Gülay KAÇAR

Konular:Fen

DOI:10.16969/entoteb.564898

Anahtar Kelimeler:Bartın,Asian walnut moth,Damage rate,Distribution areas,Morphological characters

Özet: Garella (Erschoviella) musculana (Erschov) (Lepidoptera: Nolidae) is an important pest that damages the walnut's shoots, and fallen the fruits. G. musculana was the new species in Turkey, found in Bartın for the past few years. Morphological characteristics, distribution areas and damage rate of G. musculana were determined in the walnut orchards between 2017 and 2018. The studies had been conducted at least 0.01% of the walnut trees in cities and villages of Bartın, Amasra, Ulus, and Kurucaşile cities. For this aim, the damage rate of G. musculana was determined at 50 cm shoots at four different directions of each tree, selected from each orchard for the total 100 shoots and fruits. All samples from doubtful and fallen fruits were collected and brought to the laboratory for rearing the adults. The damage rate of G. musculana was found the 42% in for the orchards and 15% for the shoots in Bartın. It was determined the damage and distribution in all the cities and villages of Bartın. The eggs of G. musculana are somewhat convexly, flattened, sides with, striped, greenish yellow. There are two bands on the dorsal part of the first thorax segment of the larvae. The length of first period larvae are approximately 5 mm, and the mature larva is around 10 mm. The larva with numerous claret red spots is light green. The brown pupa is length about 10 mm in white cocoon. There are scattered brown white spots on the base of the front wings of adults. The hind wings of the adults are covered with yellowish, bright golden color and mean 18.2 mm wingspan.

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