Volume 12, Issue 1 (2023)
JCP 2023, 12(1): 65-77 |
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Mousavi A, Kheradmand K, Mosallanejad H, Fathipour Y, Havasi M R. Effect of low lethal concentrations of Eforia on biological parameters of the predatory mite Amblyseius swirskii. JCP 2023; 12 (1) :65-77
URL: http://jcp.modares.ac.ir/article-3-65573-en.html
URL: http://jcp.modares.ac.ir/article-3-65573-en.html
Ahmad Mousavi1 
, Katayoon Kheradmand 2, Hadi Mosallanejad3 , Yaghoub Fathipour4 , Mohammad Reza Havasi1
, Katayoon Kheradmand 2, Hadi Mosallanejad3 , Yaghoub Fathipour4 , Mohammad Reza Havasi1
1- Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Iran.
2- Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Iran. ,kkheradmand@ut.ac.ir
3- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.
4- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
2- Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Iran. ,
3- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.
4- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Abstract: (633 Views)
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 (24.7 SC, Syngenta Co.) at LC5, LC15, and LC25 were investigated on biological parameters of Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae) under laboratory condition at 25 ± 1 °C, 70 ± 5% RH and 16:8 (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: 37.17; LC25: 23.04 eggs/female) and total life span (Control: 42.67 days; LC25: 24.65 days). The net reproductive rate (R0) was 22.31, 20.12, 15.14, and 14.98 eggs/individual, respectively, at control, LC5, LC15, and LC25. The maximum and minimum values for the intrinsic rate of increase (r) were recorded to be 0.17 (Control, LC5, and LC25) and 0.15 (LC15) day-1 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.
Keywords: Amblysseius swirskii, Life table, Sublethal concentration, Eforia, Two-spotted spider mite
Article Type: Original Research |
Subject:
Insect Physiology
Received: 2022/11/21 | Accepted: 2023/06/7 | Published: 2023/07/16
Received: 2022/11/21 | Accepted: 2023/06/7 | Published: 2023/07/16
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