Cyantraniliprole-induced intergenerational sublethal effects on fall armyworm, Spodoptera frugiperda

Crop Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107116 - 107116

Published: Jan. 1, 2025

Language: Английский

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Monitoring Resistance and Biochemical Studies of Three Egyptian Field Strains of Spodoptera littoralis (Lepidoptera: Noctuidae) to Six Insecticides

Toxics, Journal Year: 2023, Volume and Issue: 11(3), P. 211 - 211

Published: Feb. 24, 2023

Spodoptera littoralis (Boisd.) is a prominent agricultural insect pest that has developed resistance to variety of insecticide classes. In this study, the three field strains S. littoralis, collected over consecutive seasons (2018 2020) from Egyptian Governorates (El-Fayoum, Behera and Kafr El-Shiekh), six insecticides was monitored.Laboratory bioassays were carried out using leaf-dipping method examine susceptibility laboratory tested insecticides. Activities detoxification enzymes determined in an attempt identify mechanisms.The results showed LC50 values ranged 0.0089 132.24 mg/L, corresponding ratio (RR) 0.17 4.13-fold compared with susceptible strain. Notably, low spinosad all strains, very alpha-cypermethrin chlorpyrifos. On other hand, no methomyl, hexaflumeron or Bacillus thuringiensis. The determination enzymes, including carboxylesterases (α- β-esterase), mixed function oxidase (MFO) glutathione-S-transferase (GST), target site acetylcholinesterase (AChE), revealed had significantly different activity levels strain.Our findings, along tactics, are expected help management Egypt.

Language: Английский

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Recent insights into pesticide resistance mechanisms in Plutella xylostella and possible management strategies

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(42), P. 95296 - 95311

Published: Aug. 22, 2023

Language: Английский

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Determination of the residue behavior of isocycloseram in Brassica oleracea and soil using the QuEChERS method coupled with HPLC

Food Chemistry, Journal Year: 2021, Volume and Issue: 367, P. 130734 - 130734

Published: July 30, 2021

Language: Английский

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Sublethal and transgenerational effects of spinetoram on the biological traits of Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Ecotoxicology, Journal Year: 2021, Volume and Issue: 30(4), P. 667 - 677

Published: March 29, 2021

Language: Английский

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Monitoring and biochemical impact of insecticides resistance on field populations of Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) in Egypt

Polish Journal of Entomology, Journal Year: 2022, Volume and Issue: 91(3), P. 109 - 118

Published: Sept. 30, 2022

Cotton leafworm, Spodoptera littoralis (Boisd.) is a key pest affecting many field crops and vegetables in Egypt. Therefore, the current study, susceptibility of 2nd instar larvae S. laboratory strain to eight insecticides was investigated insecticide resistance levels two populations were monitored. The collected from governorates Egypt, namely El-Monufia (MS) El-Fayoum (FS). Resistance monitoring showed that population highly resistant chlorantraniliprole, emamectin benzoate (EMB), spinotram, spinosad. However, only exhibited high chlorantraniliprole relative toxicity sensitive EMB (LC50= 0.001 ppm) followed by spinotram 0.006 ppm), 0.008 spinosad indoxacarb 0.021 while chlorfenapyr, fipronil, alpha-cypermethrin low littoralis. Moreover, biochemical determinations detoxification enzymes revealed carboxylesterase (α, β -esterase), AChE activity significantly increased FS population. Thus, Glutathione S-Transferase (GST) significant increase populations.

Language: Английский

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Biochemical and molecular characterization of chlorantraniliprole resistance in Spodoptera littoralis (Lepidoptera: Noctuidae)

Crop Protection, Journal Year: 2023, Volume and Issue: 177, P. 106533 - 106533

Published: Dec. 4, 2023

Language: Английский

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Combined effects of spinetoram and Microcystis aeruginosa on Daphnia pulex offspring: Maternal effects and multigenerational implications

Chemosphere, Journal Year: 2024, Volume and Issue: 352, P. 141376 - 141376

Published: Feb. 3, 2024

Language: Английский

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Intergenerational effect of cyproflanilide at sublethal level to Chilo suppressalis (Walker) (Lepidoptera: Pyralidae)

Crop Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107184 - 107184

Published: March 1, 2025

Language: Английский

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Baseline Susceptibility of Plutella xylostella and Spodoptera exigua to Fluxametamide in China

Insects, Journal Year: 2025, Volume and Issue: 16(3), P. 267 - 267

Published: March 4, 2025

Fluxametamide, an innovative isoxazoline insecticide, acts as antagonist of γ-aminobutyric acid-gated chloride channels. Its distinct mode action sets it apart, lacking known cross-resistance with current insecticides. This positions fluxametamide a promising tool for addressing insecticide resistance in Lepidoptera, thysanoptera, coleoptera, and diptera pest insects. To develop implement successful management strategies, is crucial to establish the baseline susceptibility this before registered widely used China. In study, we assessed two widespread lepidopteran species, Plutella xylostella Spodoptera exigua, fluxametamide. The exhibited remarkably high efficacy against populations species sampled their primary distribution areas For P. S. median lethal concentrations (LC50) ranged between 0.040 0.247 mg/L, 0.211 0.761 respectively. Among populations, there was relative low variability fluxametamide, showing 6.18-fold difference 3.61-fold exigua. suggested diagnostic exigua were 10 15 Fluxametamide toxicity selected resistant strains, which displayed strong abamectin, emamectin benzoate, deltamethrin. No detected laboratory diamide-resistant strain. Our findings offer essential insights crafting initiatives maintain effectiveness these significant pests.

Language: Английский

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