Biopesticides and insect pollinators: Detrimental effects, outdated guidelines, and future directions

Cappa, Federico; Baracchi, David; Cervo, Rita

doi:10.1016/j.scitotenv.2022.155714

Cited by 52 publications

(37 citation statements)

References 227 publications

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“…However, the low efficacy, short duration, inconsistent field performance, and high cost have generally limited the development of biopesticides, and biopesticides still only account for a small percentage of the global crop-protection market (around 5% market share with a value of about US$ 3 billion worldwide). 8,9 The poor performance of pesticides/biopesticides has compelled the scientific community to discover new and cost-effective alternative strategies. 10,11 Therefore, the introduction of nanomaterials in pesticides can effectively avoid the negative aspects of traditional agrochemicals or biologically-originated pesticides.…”

Section: Introductionmentioning

confidence: 99%

Nanobiopesticides in sustainable agriculture: developments, challenges, and perspectives

Pan

Guo

Zhai

et al. 2023

Environ. Sci.: Nano

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Section: Introductionmentioning

confidence: 99%

Nanobiopesticides in sustainable agriculture: developments, challenges, and perspectives

Pan

Guo

Zhai

et al. 2023

Environ. Sci.: Nano

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“…For these reasons, these products can be good candidates for modern and sustainable agriculture. Despite the growing interest of the scientific community in botanical pesticides during recent years [ 37 ], their commercial use is still restricted compared to the synthetic alternatives, particularly in developing countries [ 49 ].…”

Section: Botanical Biopesticidesmentioning

confidence: 99%

“…To date, there are no specific regulations and protocols for testing the effects of biopesticides on bees. Therefore, the same protocols for the chemical pesticides developed by the Organisation for Economic Co-operation and Development (OECD) are used [ 37 ]. These protocols [ 74 , 81 ] include laboratory chronic and acute oral/contact toxicity tests to measure ecotoxicological parameters, such as LC 50 and LD 50 , and to evaluate sublethal effects such as paralysis, movement alterations, and the presence of moribund specimens.…”

Section: Risk Assessment Of Biopesticides On Beesmentioning

confidence: 99%

“…However, other families of chemical compounds (such as carbamates, organophosphates, and pyrethroids) are well known to be dangerous for these insects [ 27 , 33 , 34 ]. Conversely, there is less information on the toxicity of insecticides of biological origin for bees [ 35 , 36 , 37 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

“…Biondi et al [ 35 ] summarized the non-target effects of spinosyns on beneficial arthropods, including pollinators, while Erler et al [ 38 ] reported from the literature the impacts of entomopathogenic organisms on social and solitary bees. The review by Cappa et al [ 37 ] summarized the detrimental effects of biopesticides on insect pollinators (including social and solitary bees, Lepidoptera, Diptera Syrphidae, anthophilous Coleoptera, and wasps), including the effects of different classes of microbial biopesticides, and the effects of azadirachtin among the botanical biopesticides. Furthermore, Ntalli et al [ 39 ] summarized the effects on honeybees of botanical treatments used in beekeeping to control the Apis mellifera arthropod pests.…”

Section: Introductionmentioning

confidence: 99%

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Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)?

Catania

Lima

Potrich

et al. 2023

Insects

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The recent global decline in insect populations is of particular concern for pollinators. Wild and managed bees (Hymenoptera, Apoidea) are of primary environmental and economic importance because of their role in pollinating cultivated and wild plants, and synthetic pesticides are among the major factors contributing to their decline. Botanical biopesticides may be a viable alternative to synthetic pesticides in plant defence due to their high selectivity and short environmental persistence. In recent years, scientific progress has been made to improve the development and effectiveness of these products. However, knowledge regarding their adverse effects on the environment and non-target species is still scarce, especially when compared to that of synthetic products. Here, we summarize the studies concerning the toxicity of botanical biopesticides on the different groups of social and solitary bees. We highlight the lethal and sublethal effects of these products on bees, the lack of a uniform protocol to assess the risks of biopesticides on pollinators, and the scarcity of studies on specific groups of bees, such as the large and diverse group of solitary bees. Results show that botanical biopesticides cause lethal effects and a large number of sublethal effects on bees. However, the toxicity is limited when comparing the effects of these compounds with those of synthetic compounds.

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The stingless bee Trigona spinipes (Hymenoptera: Apidae) is at risk from a range of insecticides via direct ingestion and trophallactic exchanges

Pereira,

Vieira Júnior,

Barcelos

et al. 2024

Pest Management Science

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BACKGROUNDThe stingless bee, Trigona spinipes, is an important pollinator of numerous native and cultivated plants. Trigona spinipes population can be negatively impacted by insecticides commonly used for pest control in crops. However, this species has been neglected in toxicological studies. Here we observed the effects of seven insecticides on the survival of bees that had fed directly on insecticide‐contaminated food sources or received insecticides via trophallactic exchanges between nestmates. The effects of insecticides on flight behavior were also determined for the compounds considered to be of low toxicity.RESULTSImidacloprid, spinosad, and malathion were categorized as highly toxic to T. spinipes, while lambda‐cyhalothrin, methomyl, and chlorfenapyr were medium to low toxicity and interfered with two aspects of flight behavior evaluated here. Chlorantraniliprole was the only insecticide tested here that had no significant effect on T. spinipes survival, although it did interfere with one aspect of flight capacity. A single bee that had ingested malathion, spinosad, and imidacloprid, could contaminate three, four, and nineteen other bees, respectively via trophallaxis, resulting in the death of the recipients.CONCLUSIONThis is the first study to evaluate the ecotoxicology of a range of insecticides that not only negatively affected T. spinipes survival but also interfered with flight capacity, a very important aspect of pollination behavior. The toxicity of the insecticides was observed following direct ingestion and also via trophallactic exchanges between nestmates, highlighting the possibility of lethal effects of these insecticides spreading throughout the colony, reducing the survival of non‐foraging individuals.This article is protected by copyright. All rights reserved.

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

Cited by 52 publications

References 227 publications

Nanobiopesticides in sustainable agriculture: developments, challenges, and perspectives

Nanobiopesticides in sustainable agriculture: developments, challenges, and perspectives

Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)?

The stingless bee Trigona spinipes (Hymenoptera: Apidae) is at risk from a range of insecticides via direct ingestion and trophallactic exchanges

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