Natural enemies of the currant lettuce aphid, Nasonovia ribisnigri (Mosely) (Hemiptera: Aphididae) and their population fluctuations in Ahvaz, Iran
محل انتشار: Journal of Crop Protection، دوره: 3، شماره: 4
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 154
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شناسه ملی سند علمی:
JR_JCP-3-4_008
تاریخ نمایه سازی: 13 آبان 1402
چکیده مقاله:
Nasonovia ribisnigri (Mosely) is one of the most important pests of the lettuce plant and it was reported for the first time in Ahvaz in ۲۰۰۸. In order to investigate the dominant species of its natural enemies and their population fluctuations, sample were taken arbitrarily from fifty plants twice a week during the growing season in ۲۰۱۰-۲۰۱۲. In this study, ten species of predators, three species of parasitoids and two species of hyperparasitoids were collected and identified. Hoverflies with a relative frequency of ۵۵% were the dominant predators. Peaks of lacewings and subsequently ladybird beetles were more coincident with peaks of aphid population in mid-March in the first year of studies. But their densities in the second year were very low. Also, hoverflies and parasitoids were mainly observed in the high densities in late March-early April, in both years. Regression analysis indicated that populations of aphids were mainly affected by ladybird beetles and lacewings in the first year of study, as well as by ladybird beetles, hoverflies and parasitoids in the second year. Therefore, additional studies are required for further evaluation on the potential abilities of these natural enemies being a good candidates for the future biological control programs.
کلیدواژه ها:
نویسندگان
Afrooz Farsi
Department of plant protection, faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Farhan Kocheili
Department of plant protection, faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Mohammad Saeed Mossadegh
Department of plant protection, faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Arash Rasekh
Department of plant protection, faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran. University of Ahvaz
Mehrzad Tavoosi
Agriculture and Natural Resources Research Center of Khuzestan-Ahvaz.
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