Effect of low lethal concentrations of Eforia on biological parameters of the predatory mite Amblyseius swirskii
Publish place: Journal of Crop Protection، Vol: 12، Issue: 1
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JCP-12-1_006
تاریخ نمایه سازی: 13 آبان 1402
Abstract:
The two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) is one of the most important pests of many crops worldwide. Combined tactics for pest management have a significant special effect on reducing pesticide use and maintaining the activity of natural enemies, which is the main objective of IPM programs. The effect of low-lethal concentrations of Eforia (۲۴.۷ SC, Syngenta Co.) at LC۵, LC۱۵, and LC۲۵ were investigated on biological parameters of Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae) under laboratory condition at ۲۵ ± ۱ °C, ۷۰ ± ۵% RH and ۱۶:۸ (L: D) h. The data were analyzed based on a two-sex life table procedure. The results showed that Eforia caused a significant reduction in fecundity (Control: ۳۷.۱۷; LC۲۵: ۲۳.۰۴ eggs/female) and total life span (Control: ۴۲.۶۷ days; LC۲۵: ۲۴.۶۵ days). The net reproductive rate (R۰) was ۲۲.۳۱, ۲۰.۱۲, ۱۵.۱۴, and ۱۴.۹۸ eggs/individual, respectively, at control, LC۵, LC۱۵, and LC۲۵. The maximum and minimum values for the intrinsic rate of increase (r) were recorded to be ۰.۱۷ (Control, LC۵, and LC۲۵) and ۰.۱۵ (LC۱۵) day-۱ for the treated mites. Based on the results, the application of low lethal concentrations of Eforia harms some biological parameters of this predatory mite, and the results of this study showed that Eforia may not be applied for the control of T. urticae pest together with A. swirskii.
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Authors
Ahmad Mousavi
Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Iran.
Katayoon Kheradmand
Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Iran.
Hadi Mosallanejad
Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.
Yaghoub Fathipour
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Mohammad Reza Havasi
Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Iran.
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