Bti-based insecticide enhances the predatory abilities of the backswimmer Buenoa tarsalis (Hemiptera: Notonectidae)

Gutiérrez, Yeisson; Ramos, Géssica Priscila; Tomé, Hudson V. V.; Oliveira, Eugênio E.; Salaro, Ana Lúcia

doi:10.1007/s10646-017-1840-1

Cited by 15 publications

(13 citation statements)

References 45 publications

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“…In contrast, other categories of biorational insecticides can cause adverse effects on non‐target aquatic organisms . Curiously, recent studies indicate that aquatic predators exposed to sublethal doses of Bacillus thuringiensis var israelensis (Bt i ) are more successful predators after exposure …”

Section: Unintended Effects Of Biorational Insecticidesmentioning

confidence: 99%

Rethinking biorational insecticides for pest management: unintended effects and consequences

Haddi

Turchen

Jumbo

et al. 2020

Pest Management Science

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121

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Biorational insecticides are composed of natural products, including animals, plants, microbes, and minerals, or are their derivates. The use of biorational products for the management of insect pests has grown intensively in recent years, which has increased their popularity and share on the insecticide global market. Much of these recent increases in the use of biorational insecticides has been derived from the generalized perception that conventional insecticides have undesirable ecological and human health impacts. However, the idea of simply replacing synthetic compounds with biorational insecticides without considering their potential unintended effects can mislead their use and reduce the market life of such pest management tools. A systematic literature survey encompassing over 15 000 scientific manuscripts published between 1945 and 2019 reinforces the bias of focusing on studying the targeted effects while overlooking the potential detrimental effects of biorational products on human health and the environment (e.g. death and negative sublethal effects on pollinators and beneficial arthropods such as parasitoids and predators). Thus, the risks associated with biorational compounds (e.g. control failures, the evolution of resistance, shift in dominance, and outbreaks of secondary or primary pests) need to be revisited and the outcomes of such inquiry could be decisive for their future use in pest management programs. The shortcomings of regulatory processes, knowledge gaps, and the outlook for the use of the biorational products in pest management are discussed.

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Section: Unintended Effects Of Biorational Insecticidesmentioning

confidence: 99%

Rethinking biorational insecticides for pest management: unintended effects and consequences

Haddi

Turchen

Jumbo

et al. 2020

Pest Management Science

Self Cite

121

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“…Hereby, we integrated two recommended strategies against the build-up of resistance in vector populations (Liu, 2015;Raymond et al, 2001). Our results suggest that the application of a taxon-specific biopesticide, which targets the vector species while not affecting the predator, is promising to target the resistant strain (Gutiérrez et al, 2017a;McNitt et al, 1995). Indeed, Bti caused a ca.…”

Section: Discussionmentioning

confidence: 98%

“…This will also influence how pesticides shape the outcome of the interactions between the pest species and their predators (Tran et al, 2016). Thus, pesticides that control pest populations, but that also have a low impact on their predators are required (Gutiérrez et al, 2017a). Also here, the use of taxon-specific biopesticides that target the pest species but do not affect the predator may be promising (Gutiérrez et al, 2017a;McNitt et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, pesticides that control pest populations, but that also have a low impact on their predators are required (Gutiérrez et al, 2017a). Also here, the use of taxon-specific biopesticides that target the pest species but do not affect the predator may be promising (Gutiérrez et al, 2017a;McNitt et al, 1995). In general, how the use of pesticide mixtures affects biological control by predation is poorly studied (but see Cloyd, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Resistance to a chemical pesticide increases vulnerability to a biopesticide: Effects on direct mortality and mortality by predation

et al. 2019

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Pesticide mixtures are increasingly used to fight pest species that developed resistance to pesticides. To assess the pesticide control efficiency and to reduce ecological damage to nontarget species, it is important to quantify the effect of these mixtures and compare them with the effect of their single pesticides on pest species, non-target species and their predator-prey interactions. We studied the effects of the chemical pesticide chlorpyrifos (CPF), the biopesticide Bacillus thuringiensis israelensis (Bti) and their mixture both on the direct mortality and on the mortality by predation. We focused on larvae of a CPF-resistant and a non-resistant strain of the vector mosquito Culex quinquefasciatus and its predator, the pygmy backswimmer Plea minutissima. In the CPF-Bti mixture, both pesticides interacted antagonistically for direct mortality. Exposure to the mixture caused equal direct mortality and equal mortality by predation in both strains. As expected, exposure to CPF resulted in less direct mortality and less mortality by predation in the CPF-resistant mosquito strain compared to the non-resistant strain. Notably, Bti caused a higher mortality in the mosquito larvae of the CPF-resistant strain compared to the non-resistant strain. Furthermore, the predator killed more mosquito larvae of the resistant strain compared to the non-resistant strain when exposed before to Bti alone. These observations identify a novel cost of resistance to a chemical pesticide in terms of increased vulnerability to a biopesticide.

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“…trophic interactions and competition (McCauley et al, 2011;Adamo et al, 2013;Gutiérrez et al, 2020a) and chemical stressors (e.g. heavy metals and pesticides (Tchounwou et al, 2012;Bohnenblust et al, 2013;Gutiérrez et al, 2016;Gutiérrez et al, 2017a;Gutiérrez et al, 2017b;Gutiérrez et al, 2020b;Bernhardt et al, 2017). Moreover, these evidently bear the potential to affect all living organisms, from bacteria to vertebrates, and their associated ecosystem functions and processes.…”

Section: Introductionmentioning

confidence: 99%

Multiple mechanisms in which agricultural insects respond to environmental stressors: canalization, plasticity and evolution

Gutiérrez¹

2020

rcia

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Insects are a paramount component of biodiversity in terms of taxonomic richness, ecological functions and ecosystem services. However, many human activities have negative consequences on such organisms, causing changes in their morphology, physiology, behaviour, and even causing mass deaths leading to the well-recognized insect decline phenomenon. Although the effects of some environmental stressors (e.g. global warming and pesticides) on insect biology are fairly well understood, there is a plethora of stressors that that have only recently been considered. Additionally, although the exposure to multiple stressors is a common scenario in natural conditions, our knowledge on insect responses in this regard is still incipient. Knowledge that is in much need to inform policy makers in the fight against global change. Here, a short review on prominent environmental stressors, and the known responses that insects may exhibit, which are summarized as canalization, plasticity and evolution is provided. Furthermore, an outlook and recommendation for future studies aiming to elucidate the effects of environmental stressors (both lone and mixed) on insect biology is given. This manuscript advocates for controlled (lab or semi-field) manipulative experiments that implement realistic environmental conditions and that ideally combine several stressors.

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Bti-based insecticide enhances the predatory abilities of the backswimmer Buenoa tarsalis (Hemiptera: Notonectidae)

Cited by 15 publications

References 45 publications

Rethinking biorational insecticides for pest management: unintended effects and consequences

Rethinking biorational insecticides for pest management: unintended effects and consequences

Resistance to a chemical pesticide increases vulnerability to a biopesticide: Effects on direct mortality and mortality by predation

Multiple mechanisms in which agricultural insects respond to environmental stressors: canalization, plasticity and evolution

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