Yalova (Türkiye) 'da Kestane gal arısı, Dryo cosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae)'un doğal düşman faunası hakkında ilk kayıtlar

Abstract

Abstract: In this study, conducted from May to June, 2014, the natural enemy fauna ofthe Chesnut G all- wasp, Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae) inYalova, Turkey was investigated. In total, 1, 154 galls of Chesnut Gall- wasp were obtainedfrom Güneyköy, Kurtköy. Gacık and Çukurköy villages of Yalova. On fifteen of the galls taken from the Gacık samples, the exit holes of parasitoids were counted and the galls were dissected, and the level of parasitism w as obtained. In two of the gall complexes, more thanone larva (two or three larvae) were observed in some galls, of which only one of hadpupated and the other was consumed super parasitism. The other galls were kept in plasticand fine cheesecloth bags under room conditions (25- 300 C and 50- 60% relative humidity),and the adults that emerged from the galls were counted and preserved in 96% ethanol foridentification. From the galls of Chestnut Gall- wasp, Mesopolobus dubius (Walker), M.tibialis (Westwood), Cecidostiba fungosa (Geoffroy) (Hymenoptera: Pteromalidae); Ormyrus pomaceus (Geoffroy) (Hymenoptera: Ormyridae), Torymus flavipes (Walker),Torymus ramicola Ruschka, Bootanomyia mehmeti Doğanlar (Hymenoptera: Torymidae);Eupelmus uruzonus Dalman (Hymenoptera: Eupelmidae);and Pediobius sp. and Pinigalio sp. (Hymenoptera: Eulophidae), were recorded for the first time in Yalova,Turkey asparasitoids or associates of the Chesnut Gall- wasp. The ratios of parasitoids in the totalnumber of the parasitoid adults reared from the galls (218) were: 61% M. dubius; 12.84%O. pomaceus; 11.92% E. urozonus (hyperparas itoid); 4.60% M. tibialis and C. fungosa;2.30% E. adleria; and the ratios of the other parasitoids were about 1%. O f the total numberof the adults reared from the galls (5,328), 95.9% were Chestnut Gall- wasp, D. kuriphilus,2.50% were M. dubius, and the ratios of the other parasitoids were less than 1.00%.