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

Shehzad, Muhammad; Bodlah, Imran; Siddiqui, Junaid Ali; Bodlah, Muhammad Adnan; Fareen, Ammara Gull E; Islam, Waqar

doi:10.1007/s11356-023-29271-5

Cited by 6 publications

(2 citation statements)

References 156 publications

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“…In this study, the resistance of adult sweet potato weevils to spinetoram increased after exposure to a low level of Cd 2+ , which could contribute to reduced efficiency of pesticide-based plant protection efforts. Tolerance development may involve behavioral resistance, penetration resistance, target resistance, and metabolic resistance [ 61 ], but the exact mechanism of cross-tolerance formation is not fully understood; the molecular mechanism of this enhanced tolerance also deserves further study.…”

Section: Discussionmentioning

confidence: 99%

Changes in the Biology and Susceptibility of Weevil (Cylas formicarius) to the Insecticide Spinetoram as a Response to Cadmium Contamination

Xu,

Tang,

Liu

et al. 2024

Toxics

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The sweet potato weevil Cylas formicarius is a notorious underground pest in sweet potato (Ipomoea batatas L.). However, little is known about the effects of cadmium (Cd) stress on weevil biology and resistance to pesticides and biotic agents. Therefore, we fed sweet potato weevils with Cd-contaminated sweet potato and assessed adult food intake and survival and larval developmental duration and mortality rates, as well as resistance to the insecticide spinetoram and susceptibility to the entomopathogenic fungus Beauveria bassiana. With increasing Cd concentration, the number of adult weevil feeding holes, adult survival and life span, and larval developmental duration decreased significantly, whereas larval mortality rates increased significantly. However, at the lowest Cd concentration (30 mg/L), adult feeding was stimulated. Resistance of adult sweet potato weevils to spinetoram increased at low Cd concentration, whereas Cd contamination did not affect sensitivity to B. bassiana. Thus, Cd contamination affected sweet potato weevil biology and resistance, and further studies will investigate weevil Cd accumulation and detoxification mechanisms.

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Section: Discussionmentioning

confidence: 99%

Changes in the Biology and Susceptibility of Weevil (Cylas formicarius) to the Insecticide Spinetoram as a Response to Cadmium Contamination

Xu,

Tang,

Liu

et al. 2024

Toxics

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“…Become potential “carriers” while feeding on susceptible plants, spreading more serious diseases to the plants. Among agricultural pests, the P. xylostella is one of the most challenging pests to control, infesting cruciferous crops and causing up to $4.5 billion in losses annually [ 3 ]. Since crops are threatened not only by agricultural pests but also by crop pathogens, the focus of addressing these issues is on effective disease and pest management.…”

Section: Introductionmentioning

confidence: 99%

Sulfonate derivatives bearing an amide unit: design, synthesis and biological activity studies

Liu,

Li,

Nie

et al. 2024

BMC Chemistry

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Pest disasters which occurs on crops is a serious problem that not only cause crop yield loss or even crop failure but can also spread a number of plant diseases.Sulfonate derivatives have been widely used in insecticide and fungicide research in recent years. On this basis, a series of sulfonate derivatives bearing an amide unit are synthesized and the biological activities are evaluated. The bioassay results showed that compounds A8, A13, A16, B1, B3, B4, B5, B10, B12 − 20, C3, C5, C9, C10, C14, C15, C17 and C19 showed 100% activity at a concentration of 500 µg/mL against the Plutella xylostella (P. xylostella). Among them, B15 which contains a thiadiazole sulfonate structure still shows 100% activity at 50 µg/mL concentration against P. xylostella and had the lowest median lethal concentration (LC50) (7.61 µg/mL) among the target compounds. Further mechanism studies are conducted on compounds with better insecticidal activity. Molecular docking results shows that B15 formed hydrophobic interactions π-π and hydrogen bonds with the indole ring of Trp532 and the carboxyl group of Asp384, respectively, with similar interaction distances or bond lengths as those of diflubenzuron. Moreover, chitinase inhibition assays are performed to further demonstrate its mode of action. In addition, the anti-bacterial activity of the series of compounds is also tested and the results showed that the series of compounds has moderate biological activity against Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas oryzae pv. oryzicola (Xoc), with inhibition rates of 91%, 92% and 92%, 88% at the concentration of 100 µg/mL, respectively. Our study indicates that B15 can be used as a novel insecticide for crop protection. Graphical Abstract

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Evaluation of kale genotypes on the nutritional indices and oviposition decisions against Plutella Xylostella (Lepidoptera: Plutellidae)

Hasan,

Zahoor,

Rashid

et al. 2024

Vegetos

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

Cited by 6 publications

References 156 publications

Changes in the Biology and Susceptibility of Weevil (Cylas formicarius) to the Insecticide Spinetoram as a Response to Cadmium Contamination

Changes in the Biology and Susceptibility of Weevil (Cylas formicarius) to the Insecticide Spinetoram as a Response to Cadmium Contamination

Sulfonate derivatives bearing an amide unit: design, synthesis and biological activity studies

Evaluation of kale genotypes on the nutritional indices and oviposition decisions against Plutella Xylostella (Lepidoptera: Plutellidae)

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