Egg parasitoids of Lobesia botrana (Den. & Schiff.) (Lepidoptera: Tortricidae) in the vineyards of Izmir and Manisa Provinces in Turkey

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39th World Congress of Vine and Wine, Bento Goncalves, Brezilya, 24 - 28 Ekim 2016, cilt.7 identifier


The study was carried out to determine egg parasitoids of Lobesia botrana (Den. & Schiff.) on Sultani Cekirdeksiz grape in Izmir and Manisa between 2009-2011. Both eggs found on grape berries in vineyards and the eggs reared in the lab and mounted onto bunches were used to determine egg parasitoids. Minimum 50 lab-reared eggs were mounted at the level of bunches in each vineyard. These eggs were recollected after 2-4 days and maintained in the climate room for checking daily if parasitized. Parasitism rate by Trichogramma euproctidis Girault (Hymenoptera: Trichogrammatidae) on mounted L. botrana eggs was determined as 8% in conventional vineyard of Sarigol in 2009, whereas it was found 10.91% in conventional vineyard of Salihli, 5% in organic vineyard of Alasehir and 1.33% in integrated vineyard of Menemen in 2010. Natural parasitism of L. botrana eggs on berries by T. euproctidis was determined as 10% and 16% in integrated vineyard of Alasehir in 2009 and 2010, respectively. T. euproctidis parasitized 38.6% of eggs whereas T. brassicae (Bezdenko) parasitised 1.44% of eggs on the berries in 2011. T. euproctidis and T. brassicae have been determined on the eggs of L. botrana in the Aegean Region, Turkey for the first time.