Environmental fate and ecotoxicological behaviour of pesticides and insecticides in non-target environments: Nanotechnology-based mitigation strategies

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113349 - 113349

Published: June 17, 2024

Language: Английский

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Resistance to synthetic pyrethroid and neonicotinoid is associated with reduced reproductive efficiency in the field population of Spodoptera litura (Insecta: Lepidoptera)

Biocatalysis and Agricultural Biotechnology, Journal Year: 2024, Volume and Issue: 56, P. 103031 - 103031

Published: Jan. 24, 2024

Language: Английский

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The inappropriate application of imidacloprid destroys the ability of predatory natural enemies to control pests in the food chain: A case study of the feeding behavior of Orius similis on Frankliniella occidentalis

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 272, P. 116040 - 116040

Published: Feb. 1, 2024

Insecticides are an indispensable and important tool for agricultural production. However, the inappropriate application of insecticides can cause damage to food chain ecosystem. Orius similis is predatory natural enemy Frankliniella occidentalis. Imidacloprid widely used control pests, but will inevitably exert adverse effects on O. similis. In order determine effect different imidacloprid treatments ability prey 2nd-instar nymphs F. occidentalis, we determined toxicity predation stages under contact ingestion treatments. addition, Holling disc equation evaluate search exhibit activity following Analysis showed that highest LC

Language: Английский

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Anopheles gambiae larvae’s ability to grow and emerge in water containing lethal concentrations of clothianidin, acetamiprid, or imidacloprid is consistent with cross-resistance to neonicotinoids

Parasites & Vectors, Journal Year: 2024, Volume and Issue: 17(1)

Published: March 1, 2024

For decades, various agrochemicals have been successfully repurposed for mosquito control. However, preexisting resistance caused in larval and adult populations by unintentional pesticide exposure or other cross-resistance mechanisms poses a challenge to the efficacy of this strategy. A better understanding adaptation lethal sublethal effects residual pesticides aquatic habitats would provide vital information assessing against mosquitoes. We reared field-collected larvae water containing concentration agrochemical causing 100% mortality susceptible mosquitoes after 24 h (lethal concentration). Using experimental setup, we tested effect concentrations pyrrole (chlorfenapyr, 0.10 mg/l), pyrethroid (deltamethrin, 1.5 three neonicotinoids including imidacloprid (0.075 acetamiprid (0.15 clothianidin (0.035 mg/l) on rates, growth, survival third-instar two sibling species Anopheles gambiae coluzzii collected from Yaoundé, Cameroon. found that An. were chlorfenapyr killed within nominal mg/l. Consistent with strong resistance, deltamethrin induced low both species. Lethal acetamiprid, imidacloprid, strongly inhibited survival, emergence larvae. By contrast, depending active ingredient population tested, 5-60% immature stages able grow emerge neonicotinoids, suggesting class insecticides. These findings corroborate susceptibility profiles observed adults suggest processes could contribute development some populations.

Language: Английский

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Investigating the selectivity of botanical and synthetic insecticides on Doru luteipes: there is no simple answer

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

To achieve sustainability in agricultural pest management, it is essential to integrate chemical and biological control through selectivity studies. In this study, we evaluated the lethal sublethal effects of both botanical synthetic insecticides used for controlling fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), on its natural enemy Doru luteipes (Scudder) (Dermaptera: Forficulidae). For purpose, bioassays mortality, behavior, transgenerational were conducted. Botanical rich acetogenins limonoids caused less than 30% mortality D. nymphs (2nd, 3rd, 4th instars). contrast, chlorantraniliprole-based insecticide (Premio®) was highly toxic, presenting above 80% at all nymphal stages reducing predation capacity by 55.97% walking velocity 28.44% compared control. Aqueous emulsion ethanolic extract from Annona mucosa seeds (ESAM) reduced longevity adults 88.88 days. Chlorantraniliprole resulted shortest pre-oviposition period (9.44 days), followed a limonoids-based (Azamax®) (11.00 days). Fourth-instar F₁ generation showed lower viability (54.54%) treatment with aqueous methanolic fraction montana leaves (EFAMON). The annonin-based commercial (Anosom®) affected life table parameters, intrinsic growth rate (r_m = 0.039) finite increase (λ 1.04). These findings indicate that are hazardous insecticide. This study provides important insights improving while preserving enemies.

Language: Английский

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Field evaluation of aqueous extract of Artemisia absinthium against cabbage aphid, Brevicoryne brassicae (hemiptera: aphididae), and its predator Coccinella septempunctata (Coleoptera: coccinellidae) in cold arid region Ladakh

Archives of Phytopathology and Plant Protection, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14

Published: Feb. 2, 2025

The effectiveness of Artemisia absinthium was assessed against the cabbage aphid (Brevicoryne brassicae) and its predator, Coccinella septempunctata in Tambis village, UT Ladakh. A randomized block design (RBD) employed to set up field experiment. To target aphids, a 5% concentration made by powdering seeds shoot portions A. absinthium. Prior spraying, infestation level aphids recorded both control treatment plots. average percentage before 76% 84% plot experimental field, respectively. Following initial treatment, there decline 9.22% population. However, at end seventh week, notable reduction 77.91% recorded. Throughout course first weeks, overall consistently increased. Despite slight predator population, it not statistically significant (p > 0.05). study indicated that extracts proved be effective while also demonstrating favorable interaction with natural enemies. These findings highlight potential assist small-scale farmers protecting their crops from B. brassicae infestation.

Language: Английский

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Sublethal and Transgenerational Effects of Nitenpyram on Acyrthosiphon gossypii and Its Impacts on Symbiotic Bacteria

Crop Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107162 - 107162

Published: Feb. 1, 2025

Language: Английский

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Advancements in Life Tables Applied to Integrated Pest Management with an Emphasis on Two-Sex Life Tables

Insects, Journal Year: 2025, Volume and Issue: 16(3), P. 261 - 261

Published: March 3, 2025

Life tables are indispensable in IPM, offering an analysis of insect population dynamics. These record survival rates, fecundity, and other parameters at various developmental stages, enabling the identification key factors that affect numbers prediction growth trajectories. This review discusses application life agricultural pest management, including assessment control capacity natural enemies, evaluation biological agents, screening insect-resistant plant species. In vector control, used to evaluate transmission risks, model dynamics, interfere with cycles insects. For invasive pests, help us monitor dynamics predict future sizes. chemical assist evaluating fitness costs pesticide resistance, guiding insecticide selection, optimizing timing. final section, we explore research directions, emphasizing potential integrating new technologies such as genomics, ethology, satellite remote sensing enhance table improve IPM strategies.

Language: Английский

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Impact of Chlorantraniliprole Exposure on Nutritional and Physiological Responses of Lab‐Selected Susceptible and Resistant Populations of Spodoptera litura (Fabricius)

Journal of Applied Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: April 20, 2025

ABSTRACT Spodoptera litura (Fabricius) (Lepidoptera, Noctuidae), known for its ravenous feeding habits, is a polyphagous pest with high reproductive rate, often developing resistance to most of the conventional insecticides, posing substantial management challenge. Chlorantraniliprole (CTPR) an anthranilic diamide insecticide, which widely used against lepidopteran pests, including S. . Understanding physiological and biochemical alterations associated CTPR crucial effective management. Our research aimed investigate overall impact on nutritional parameters, immunological responses in laboratory‐selected susceptible (Unsel‐Lab) resistant (CTPR‐Sel) populations. Results showed reduction parameters digestive enzyme activity, more pronounced decline CTPR‐Sel population. In contrast, detoxification activities (MFO, GST, EST, ACP AKP), along AChE, were significantly elevated, suggesting adaptive response exposure, population exhibiting stronger capacity. Antioxidant assay indicated increased SOD activity but decreased CAT both populations, reflecting oxidative stress. Immune markers, total haemocyte count, lysozyme phenoloxidase significant variations between two differential immune‐physiological adaptations. These findings highlight trade‐offs emphasise necessity integrated strategies mitigate development.

Language: Английский

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Impact of Weather Variables on Radish Insect Pests in the Eastern Himalayas and Organic Management Strategies

Sustainability, Journal Year: 2024, Volume and Issue: 16(7), P. 2946 - 2946

Published: April 2, 2024

This study analyzed the impact of weather variables on insect pest dynamics and their diversity in radish ecosystem through field experiments conducted for two years at a locality eastern Himalayas. The relationship with was studied six different dates sowing, assessed using standard indices. Various organic management options were also evaluated. Results revealed that temperature had positive impact, whereas relative humidity rainfall negatively affected population pests. harbors diverse species, including natural enemies, higher species richness (4.8–5.2) lower year-to-year variability. Organic strategies such as neem oil, Beauveria bassiana, Metarhizium robertsii demonstrated good efficacy against flea beetles without compromising yield, resulting 39.76%, 39.39%, 38.71% reduction over control, respectively. These biopesticides recorded less than half to one-fourth predators like coccinellids compared cypermethrin, chemical pesticide (74%). suggests that, under projected climate change temperatures, populations are assumed increase. Considering Himalayas, will be an adaptation strategy conserve biodiversity while ensuring environment-friendly management.

Language: Английский

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