Azadirachtin-Based Insecticide: Overview, Risk Assessments, and Future Directions

Frontiers in Agronomy, Год журнала: 2021, Номер 3

Опубликована: Июль 20, 2021

In the context of major crop losses, pesticides will continue to play a key role in pest management practice absence practical and efficient alternatives; however, increasing awareness regarding environmental human health impacts conventional as well development resistance cross-resistance reduced their availability promoted search for alternative control strategies reduced-risk pesticides. Among various alternatives, drastic re-emergence interest use plant-derived compounds, called allelochemicals, was noted demand an organic product is rising. Currently, azadirachtin, tetranortriterpenoid derived from neem seed Indian tree [ Azadirachta indica A. Juss (Meliaceae)], one prominent biopesticides commercialized remains most successful botanical pesticide agricultural worldwide. Azadirachtin powerful antifeedant insect growth disruptor with exceptional low residual power toxicity biocontrol agents, predators, parasitoids. This review summarizes state art on azadirachtin insecticidal activities risk assessment, identifies knowledge gaps that could serve basis future research direction highlights limitation novel by nanotechnology its release rate improve stability sustainability.

Язык: Английский

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Efficacy of homemade botanical insecticides based on traditional knowledge. A review

Agronomy for Sustainable Development, Год журнала: 2019, Номер 39(4)

Опубликована: Июнь 20, 2019

Homemade botanical insecticides are widely used by subsistence and transitional farmers in low-income countries. Their use is often driven the limited availability or cost of commercial pesticides. recommended agricultural extension services some development organizations. However, this could be questioned because scientific evidence their efficacy safety may not available accessible. Although botanicals with insecticidal properties have been studied, a synthesis focusing specifically on homemade preparations realistic field storage conditions missing. In paper, we review assessments to prepare insecticides. This covers twelve national partners 20 countries within global Plantwise program. These as follows: garlic (Allium sativum), neem (Azadirachta indica), chili pepper (Capsicum spp.), Siam weed (Chromolaena odorata), mother cocoa (Gliricidia sepium), chinaberry (Melia azedarach), moringa (Moringa oleifera), tobacco (Nicotiana tabacum), clove basil (Ocimum gratissimum), tephrosia (Tephrosia vogelii), tree marigold (Tithonia diversifolia), bitter leaf (Vernonia amygdalina). shows that (1) all selected contain active ingredients insecticidal, antifeedant, repellent properties, (2) based success control pests prevent damage, although was variable lower than positive controls (synthetic pesticides). Factors affecting insecticide include variation ingredient content concentration plant material, well preparation process. conclusion, there contribute reducing losses food production. Since further research needed better understand potential health environmental risks, those who promote should also communicate “unknowns” such products.

Язык: Английский

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The stingless bees (Hymenoptera: Apidae: Meliponini): a review of the current threats to their survival

Apidologie, Год журнала: 2022, Номер 53(1)

Опубликована: Март 1, 2022

Abstract Pollination by insects is an essential service for the conservation of plant biodiversity, since it increases rate fertilization flowers and therefore quality quantity seeds fruits. In tropical regions, native plants depend heavily on stingless bees as pollinators before introduction European honey bee Apis mellifera . However, like many other insect species worldwide, anthropogenic actions represent a true threat to populations. this article, we review works that evaluated potential negative impacts human activities populations bees. The studies constitute strong body evidence are at risk decline around world due threats including habitat loss, agrochemicals, competition resources, climate change, exotic species, pathogens.

Язык: Английский

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Biopesticides and insect pollinators: Detrimental effects, outdated guidelines, and future directions

The Science of The Total Environment, Год журнала: 2022, Номер 837, С. 155714 - 155714

Опубликована: Май 4, 2022

Язык: Английский

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Azadirachtin induced larval avoidance and antifeeding by disruption of food intake and digestive enzymes in Drosophila melanogaster (Diptera: Drosophilidae)

Pesticide Biochemistry and Physiology, Год журнала: 2017, Номер 143, С. 135 - 140

Опубликована: Авг. 5, 2017

Язык: Английский

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Glyphosate is lethal and Cry toxins alter the development of the stingless bee Melipona quadrifasciata

Environmental Pollution, Год журнала: 2018, Номер 243, С. 1854 - 1860

Опубликована: Окт. 3, 2018

Язык: Английский

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Toxicological assessments of agrochemical effects on stingless bees (Apidae, Meliponini)

MethodsX, Год журнала: 2020, Номер 7, С. 100906 - 100906

Опубликована: Янв. 1, 2020

Bee pollination is crucial for ecosystem maintenance and crop production. The ubiquity of bee pollinators in agricultural landscapes frequently results their exposure to agrochemicals, which has been associated with decline. Stingless bees are wild restricted the Pantropical region, like honey bees, suffering colony losses. However, stingless do not show same behaviors, therefore, methods used risk assessment cannot be utilized on bees. Herein, we describe protocols standardize that allow exploration lethal sublethal effects agrochemicals via acute chronic vitro rearing from egg adult stage proved effective obtaining relevant screenings. In addition, performed a meta‐analysis summarized toxicological studies conducted described. meta-analyses indicated reduction survival under exposures revealed our assessments did have publication bias either or exposure. These findings these standardized reliable research bee.

Язык: Английский

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Pesticide impacts on insect pollinators: Current knowledge and future research challenges

The Science of The Total Environment, Год журнала: 2024, Номер 954, С. 176656 - 176656

Опубликована: Окт. 2, 2024

Язык: Английский

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Acute exposure to fungicide fluazinam induces cell death in the midgut, oxidative stress and alters behavior of the stingless bee Partamona helleri (Hymenoptera: Apidae)

Ecotoxicology and Environmental Safety, Год журнала: 2024, Номер 282, С. 116677 - 116677

Опубликована: Июль 5, 2024

Stingless bees (Hymenoptera: Meliponini) are pollinators of both cultivated and wild crop plants in the Neotropical region. However, they susceptible to pesticide exposure during foraging activities. The fungicide fluazinam is commonly applied bean sunflower cultivation flowering period, posing a potential risk stingless bee Partamona helleri, which serves as pollinator for these crops. In this study, we investigated impact acute oral (24 h) on survival, morphology cell death signaling pathways midgut, oxidative stress behavior P. helleri worker bees. Worker were exposed 24 h (field concentrations 0.5, 1.5 2.5 mg a.i. mL

Язык: Английский

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The reduced-risk insecticide azadirachtin poses a toxicological hazard to stingless bee Partamona helleri (Friese, 1900) queens

Chemosphere, Год журнала: 2018, Номер 201, С. 550 - 556

Опубликована: Март 6, 2018

Large-scale pesticide application poses a major threat to bee biodiversity by causing decline in populations that, turn, compromises ecosystem maintenance and agricultural productivity. Biopesticides are considered an alternative synthetic pesticides with focus on reducing potential detrimental effects beneficial organisms such as bees. The production of healthy queen stingless bees is essential for the survival reproduction hives, although it remains unknown whether biopesticides influence reproduction. In present study, we investigated biopesticide azadirachtin survival, behavior, morphology, development, queens Partamona helleri (Friese, 1900). neonicotinoid imidacloprid was used toxic reference standard. Queens were orally exposed vitro contaminated diet (containing imidacloprid) during development. Azadirachtin resulted reduced similarly imidacloprid, altered development time, caused deformations, size queens' reproductive organs. All these factors could potentially compromise colony survival. Results from study showed posed toxicological hazard P. queens.

Язык: Английский

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