Non-targeted insecticidal stress on the Neotropical brown stink bug Euschistus heros

Santos, Milaine Fernandes dos; Campos, Mateus Ribeiro de; Bravim, Jéssica N.; Oliveira, Eugênio E.; Guedes, Raul Narciso C.

doi:10.1016/j.cropro.2015.12.023

Cited by 12 publications

(22 citation statements)

References 34 publications

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“…It can also interfere with JH activity and the release of prothoracicotropic and ecdysteroid hormones (Hatakoshi, ). Pyriproxyfen does sterilise Neotropical stink bugs (Santos et al ., ), but potential effect on mating behaviour and its fitness consequences were not previously reported.…”

Section: Discussionmentioning

confidence: 96%

“…Insecticide exposure was achieved by contact with glass surface impregnated with dried residues (Santos et al ., , b ). Briefly, 2 mL of insecticide solution of distilled water were applied to 250 mL transparent glass jars (EME Equipment, Paulicéia, SP, Brazil), which were maintained under rotation until dry using a heavy‐duty rotator (Roto‐Torque model 7637, ColeParmer, Vernon Hills, IL, USA) to coat the inner walls of the jars with insecticide residue.…”

Section: Methodsmentioning

confidence: 99%

“…Some recent changes in soybean production management practices in the region include increased prevalence of no‐tillage cultivation and use of pyramided transgenic cultivars stacked with genes expressing insecticidal proteins of Bacillus thuringiensis (i.e. Bt proteins) (Bernardi et al ., ; Santos et al ., ). A consequence of this shift in management practices was the reduction in the pest status of the velvetbean caterpillar, Anticarsia gemmatalis (Hübner), and increase in importance of more Bt‐tolerant pest species such as armyworms, whiteflies and particularly stink bugs (Panizzi, ).…”

Section: Introductionmentioning

confidence: 97%

“…For instance, sublethal exposure to the neonicotinoid imidacloprid and chlorantraniliprole can enhance mating frequency and duration leading to an increase in fitness in this species (Haddi et al ., ; Tuelher et al ., ). Pyriproxyfen and spinosad can also reportedly affect E. heros , but by suppressing the population (Santos et al ., ). Here we explored the potential behavioural effects of chlorantraniliprole, pyriproxyfen and spinosad on the gender‐based fitness (or sexual fitness) of the Neotropical brown stink bug and its potential demographic consequences.…”

Section: Introductionmentioning

confidence: 97%

“…We predicted there would be significant behavioural effects caused by spinosad and chlorantraniliprole because of the neural and muscle activities of these compounds (Casida & Durkin, ; Qi & Casida, ), but not to the juvenile hormone (JH) mimic pyriproxyfen. Spinosad compromises the population growth rate of the brown stink bug (Santos et al ., ), what is doubtful for chlorantraniliprole because its effects were not as clear and hormesis may take place (Tuelher et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Non‐targeted insecticidal stress in a pest species: insecticides, sexual fitness and hormesis in the Neotropical brown stink bug Euschistus heros

Santos

Krüger

Turchen

et al. 2018

Annals of Applied Biology

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An understudied aspect of insecticides is their stress on non-targeted pest species. Sublethal insecticidal stress may elicit a range of protective and non-protective responses that may affect behaviour and sexual fitness of the exposed insects, which may lead to negative, neutral or stimulatory (i.e. hormetic) responses. We assessed the behavioural response of the Neotropical brown stink bug, Euschistus heros, a soybean pest in the Neotropical region with increasing pest status, following exposure to chlorantraniliprole, pyriproxyfen and spinosad, insecticides commonly used against soybean caterpillars and whiteflies. Both individuals, or only the male or female of each mating pair, were exposed. Reproductive behaviour and output were measured to determine insecticide-and gender-mediated fitness. We found that treatment scenario significantly affected mating behaviour, and that the duration of some behaviours were significantly affected. Chlorantraniliprole and pyriproxyfen reduced latency to mate, while spinosad increased this behaviour. Insecticide exposure also decreased the interacting time of each couple and male antennation of the female. Fertility table analyses of exposed couples indicated negligible effect of pyriproxyfen exposure, while spinosad extended generation time and reduced net reproductive rate, leading to lower rates of population growth of the brown stink bug. In contrast, chlorantraniliprole led to only a slight extension on the generation time, but enhanced net reproductive rate of the stink bug leading to higher rates of population growth; no effects on sexual fitness were observed, as both compounds exhibited similar effect on females and males. Latency to mate correlated significantly with the population growth rate. The positive response to chlorantraniliprole exposure reinforces the notion that sublethal exposure of the brown stink bug to this insecticide may lead to stimulatory (hormetic) response favouring its outbreaks in soybean fields.

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Section: Discussionmentioning

confidence: 96%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Non‐targeted insecticidal stress in a pest species: insecticides, sexual fitness and hormesis in the Neotropical brown stink bug Euschistus heros

Santos

Krüger

Turchen

et al. 2018

Annals of Applied Biology

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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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Synergism and unintended effects of the association between imidacloprid and sodium chloride (NaCl) on the management of Euschistus heros

Rodrigues

Haddi

Campos

et al. 2020

Pest Management Science

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BACKGROUND: The use of insecticidal solutions containing sodium chloride (NaCl) has been proposed as a more environmentally friendly alternative to managing stink bug infestations of Neotropical soybean fields. The potential sublethal and undesirable effects of this practice have, however, been overlooked, especially with novel insecticides. Here, we have evaluated experimentally whether the addition of NaCl (0.5% w/v) to imidacloprid-containing solutions could alter insecticide toxicity and modify the reproductive responses of the Neotropical brown stink bug Euschistus heros. RESULTS: Adding NaCl to imidacloprid solutions significantly increased imidacloprid toxicity against E. heros. The exposure to E. heros to sublethal concentrations of imidacloprid affected the insect's mating abilities in a concentration-dependent manner. The addition of NaCl to solutions containing imidacloprid at concentrations as low as 0.126 ∼g a.i. cm −2 (i.e. the equivalent to 3% of field rate recommendation) also impacted the sexual behavior of E. heros, reducing mating duration. NaCl-exposed stink bugs, however, exhibited higher fecundity and fertility rates than those insects that were unexposed to NaCl or those that were exposed to sublethal levels of imidacloprid only. CONCLUSIONS: The addition of low amounts of NaCl resulted in a higher toxicity of imidacloprid. This practice, however, can also lead to undesirable effects as increasing reproductive output of E. heros that can potentially compromise the management of these insect pests.

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Non-targeted insecticidal stress on the Neotropical brown stink bug Euschistus heros

Cited by 12 publications

References 34 publications

Non‐targeted insecticidal stress in a pest species: insecticides, sexual fitness and hormesis in the Neotropical brown stink bug Euschistus heros

Non‐targeted insecticidal stress in a pest species: insecticides, sexual fitness and hormesis in the Neotropical brown stink bug Euschistus heros

Rethinking biorational insecticides for pest management: unintended effects and consequences

Synergism and unintended effects of the association between imidacloprid and sodium chloride (NaCl) on the management of Euschistus heros

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