Düzce ili karayaprak lahanası bahçelerinde belirlenen yararlı, zararlı böcek türleri ve biyo-ekolojileri

Abstract

Collard (Brassica oleracea L. var. acephala) is among the most important winter vegetables commonly planted in the Black Sea Region of Turkey, where climatic conditions are more favorable to grow these crops. Surveys were carried out between 2016 and 2017 to determine the harmful and beneficial insect species in the collard gardens of Duzce province, located in the West Black Sea Region of Turkey. As a result of this research, 18 harmful species from 7 families belonging to 4 orders and 5 beneficial species from 4 families belonging to 4 orders were found out in the collard gardens. Cabbage whitefly, Aleyrodes proletella (L.) (Hemiptera: Aleyrodidae), was found as the main pest of collard and specified that this pest constitutes populations at potentially significant levels. Additionally, aphids Brevicoryne brassicae L. and Aphis craccivora Koch (Hemiptera: Aphididae) damage were determined in the collards. In some collard gardens, the following important harmful species that emerged occasionally were identified: Phyllotreta cruciferae Goeze, P. atra Fabricius, P. variipennis Boieldieu, P. striolata Fabricius, and P. undulata Kutschera (Coleoptera: Chrysomelidae) as flea beetles; Pieris brassicae (L.) and P. rapae (L.) (Lepidoptera: Pieridae) as cabbage moths. Encarsia tricolor Foerster (Hymenoptera: Aphelinidae) and Clitostethus arcuatus Rossi (Coleoptera: Coccinellidae) were determined as the most common beneficial species in collard gardens.