Document Type : Original Article
Authors
1
Assistant Professor, Department of Plant Pathology, Faculty of Agriculture, Ilam University, Ilam, Iran
2
Associate Professor, Department of Horticultural Sciences, Faculty of Agriculture, University of Ilam, Ilam, Iran
3
MS.C. Student, Department of Plant Pathology, Faculty of Agriculture, Razi University, Kermanshah, Iran
Abstract
In the present study, different species of thrips (Insecta: Thysanoptera) were collected and identified from vegetables belonging to eight plant families from vegetable gardens in Hamadan province during 2016-2017. For this purpose, various herbaceous parts and flowers of narrow-leafed and broad-leafed vegetables were shaken in a white enamel tray and the existing thrips were transferred to containers containing 75% alcohol. In the laboratory, the samples were clarified in 10% KOH solution and after dewatering, microscopic slides were prepared using Hoyer glue. In total, 19 species of thrips from 10 genera belonging to three families were identified from different vegetables, of which three species Aeolothrips intermedius, A. versicolor and Scolothrips longicornis were predators and the rest were vegetarians. All available plants were infected with one or more species of thrips, and thrips had a relatively high population on the flower area. The herbivorous species Thrips tabaci, Aptinothrips rufus, Thrips major and Chirothrips manicatus had very high populations on vegetables, among which onion thrips (Thrips tabaci) were collected from almost all vegetables. The highest damage of onion thrips was observed on onions and garlic of Alliaceae family and also on cucumbers of Cucurbitaceae family. Onion plants of the Fabaceae family, especially beans, are also harmful species, but in addition, Frankliniella species are also highly populated and harmful. Among predatory species, Aeolothrips intermedius had a relatively high population in vegetable fields.
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