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Journal of Agricultural Science and Technology، جلد ۲۷، شماره ۲، صفحات ۴۲۱-۴۳۳
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عنوان انگلیسی Effect of Entomopathogenic Nematode and Fungi on Mortality and Development of Spodoptera frugiperda (J. E. Smith) Larvae
چکیده انگلیسی مقاله The present study was conducted to evaluate the efficacy of entomopathogenic nematode, Steinernema carpocapsae Weiser and three entomopathogenic fungi (Metarhizium anisopliae (Metschn.) Sorokin, Trichoderma harzianum Rifai, and T. viride Pers.) against the second and fourth larval instars of Spodoptera frugiperda (J. E. Smith). The results showed that S. carpocapsae caused a pronounced mortality to second and fourth larval instars of S. frugiperda using a leaf dipping method at 4 days post inoculation (dpi) with LC50 values of 52.03 and 4.11 Infective Juveniles (IJs) mL-1, respectively. On the other hand, the three tested entomopathogenic fungi caused a strong toxicity on larval instars of S. frugiperda. The fungus, T. harzianum, displayed the highest insecticidal activity on the second larval instar (LC50= 1.1×107 spores mL-1) and M. anisopliae on the fourth larval instar (LC50= 1.5×107 spores mL-1) after 10 dpi. Our results showed that S. carpocapsae completely inhibited pupation and adult emergence from treated larvae at 250 IJs mL-1. The lethal effect of entomopathogenic nematode and fungi against S. frugiperda larval instars indicates that these biological control agents could be useful candidates in integrated pest management programs for this invasive insect.
کلیدواژه‌های انگلیسی مقاله fall armyworm,Metarhizium anisopliae,Steinernema carpocapsae,Trichoderma harzianum
نویسندگان مقاله Adel Ahmed Al-Ayat |
Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt.

Ahmed Mohiy Gharib |
Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt.

Mahmoud Mohamed Hassuba |
Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt.

Ayman Abdelwahab Atta |
Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt.

Hassan Abdullah Mesbah |
Department of Agricultural Botany (Genetics), Faculty of Agriculture, Al-Azhar University, Cairo, Egypt.

Hassan Abdelrahim Gad |
Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt.

نشانی اینترنتی https://jast.modares.ac.ir/article_17025_0219530a8ac1899e08d9bb3bd84485ba.pdf
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