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International journal of Advanced Biological and Biomedical Research، جلد ۱۰، شماره ۴، صفحات ۲۷۷-۲۸۷
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Resistance of Egyptian Field Populations of Spodoptera littoralis (Lepidoptera: Noctuidae) to Emamectin Benzoate and Role of Detoxification Enzymes |
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| چکیده انگلیسی مقاله |
Background: One of the most significant pests that harm numerous agricultural crops is the cotton leafworm Spodoptera littoralis (Boisduval) and it has evolved resistance to various insecticides across most chemical classes, including the novel insecticide emamectin benzoate.
Methods: The sensitivity of emamectin benzoate was evaluated in Egyptian cotton leafworm field populations.
Results: According to bioassays performed using the leaf-dipping method, emamectin benzoate sensitivity varied among 5 field populations, with LC50 values ranging from 2.78 to 6.86 ppm. Two S. littoralis populations demonstrated the low levels of resistance at resistance ratios (RR) between 17.9- and 22.3-fold and three populations showed moderate resistance at 33.5 to 42.8-fold compared with a susceptible population. The findings demonstrated that diethyl maleate (DEM) and piperonyl butoxide (PBO) have considerable synergistic effects on the toxicity of emamectin benzoate.
Conclusion: The results suggest that emamectin benzoate resistance in the S. littoralis populations studied may be caused by the enzyme systems monooxygenase (MO) and glutathione S-transferase (GST).
Highlights
Emamectin benzoate efficacy is decreasing in populations of Spodoptera littoralis.
Emamectin benzoate resistance in littoralis field populations ranges from low to moderate.
The field populations' monooxygenase and glutathione S-transferase activity were higher than those of the susceptible population. |
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| کلیدواژه‌های انگلیسی مقاله |
Carboxylesterase,
Emamectin benzoate resistance,
Glutathione S-transferases,
Monooxygenase,
Synergism |
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| نویسندگان مقاله |
Seham Mansour Ismail |
Insect Population Toxicology Department, Central Agricultural Pesticides Laboratory, Agriculture Research Center, 12618, Giza, Egypt
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| نشانی اینترنتی |
https://www.ijabbr.com/article_696746_3659456e55ba67b81523d0bbd4e89cff.pdf |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
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