Lethal, sublethal and transgenerational effects of insecticides on Macrolophus basicornis, predator of Tuta absoluta

Passos, Luis C.; Soares, Marianne A.; Collares, Lara J.; Malagoli, Isadora; Desneux, Nicolas; Carvalho, Geraldo Andrade

doi:10.1127/entomologia/2018/0744

Cited by 70 publications

(47 citation statements)

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“…The most common laboratory procedure method estimates the effects of chemicals on beneficial arthropods through a median lethal dose (LD 50 ) or lethal concentration (LC 50 ) (Stenersen 2004). Different from these classical toxicological laboratorial studies, demographic analyses provide data related to variations in an insects population stability owing to exposure to chemicals, depending on the mode of action of each product (Herbert et al 2004;Drobnjaković et al 2016;Passos et al 2017Passos et al , 2018Pérez-Aguilar et al 2018). Sublethal effects of pesticides or biopesticides may impair the behavior and physiology of the natural enemies of pests (Desneux et al 2007;Biondi et al 2013) and disturb associated biocontrol services (Lu et al 2012;Mohammed et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Botanical insecticide and natural enemies: a potential combination for pest management against Tuta absoluta

et al. 2019

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The development of new strategies to control pest insects is required, in combination with conventional pesticides or replacing them. Essential oils produced from botanical extracts used in management programs should be effective against pests and selective to natural enemies. Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most destructive pests of solanaceous crops in the world, and a possible management strategy consists of releases of the predator Nesidiocoris tenuis (Hemiptera: Miridae), along with botanical applications. The objective of this study was to evaluate the effects of Prev-am ® oil on T. absoluta offspring, either with or without the predator N. tenuis, as well as the oil's effects on N. tenuis predatory behavior and longevity. The oil's effects were compared with distilled water (control) and a synthetic pesticide (lambdacyhalothrin). The response of populations to lambda-cyhalothrin was similar to that with Prev-am ® , compared to the control, showing that N. tenuis had higher capacity to reduce T. absoluta populations. The survival analysis of predators exposed to Prev-am ® indicates that none of the concentrations differed significantly from the control. In addition, the canonical variate analysis indicated significant overall differences in the predator behavior submitted to different treatments, suggesting that synthetic pesticide treatment affected predator behavior when compared to control and Prev-am ® . Reduction in predatory voracity of N. tenuis adults exposed to leaves treated with pesticide and biopesticide was significant compared to the control treatment. The results obtained could improve IPM programs against T. absoluta through the Prev-am ® applications and N. tenuis releases.Keywords Natural product · Predatory mirid · South American tomato pinworm · Ecotoxicology · Biological control Key message• New strategies based on the use of natural enemies and biopesticides to control Tuta absoluta are desirable for integrated pest management (IPM). • The combination of Nesidiocoris tenuis with Prev-am ® (at half of the recommended concentration) showed enhanced efficacy against T. absoluta. • Presence of N. tenuis significantly reduced T. absoluta population growth. • Lambda-cyhalothrin and Prev-am ® could disturb behavioral response of N. tenuis.

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Section: Introductionmentioning

confidence: 99%

Botanical insecticide and natural enemies: a potential combination for pest management against Tuta absoluta

et al. 2019

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“…In IPM programs, the chemical control should be selective towards the target pest species, and hopefully harmless towards the non‐target, beneficial organisms such as the parasitoids . In this context, an accurate risk assessment of insecticides on biological control agents (BCAs) is important for developing effective pest management strategies . Moreover, understanding the potential of sublethal effects on natural enemies will help to optimize IPM programs involving use of both natural enemies and pesticides …”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19] In this context, an accurate risk assessment of insecticides on biological control agents (BCAs) is important for developing effective pest management strategies. [20][21][22][23][24] Moreover, understanding the potential of sublethal effects on natural enemies will help to optimize IPM programs involving use of both natural enemies and pesticides. 19 Encarsia formosa Gahan is a thelytokous endoparasitoid, with females producing virtually no male offspring and depositing all eggs on hosts internally.…”

Section: Introductionmentioning

confidence: 99%

Selectivity of novel and traditional insecticides used for management of whiteflies on the parasitoid Encarsia formosa

Wang

Dai

Yang

et al. 2019

Pest Management Science

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BACKGROUND Encarsia formosa Gahan is the most important parasitoid exploited for the control of whitefly pests of vegetable crops. However, the non‐target effects of recently developed insecticides for controlling whiteflies toward this biocontrol agent is little documented. Here we evaluated the susceptibility of E. formosa adults and juveniles to eight commonly used insecticides against whiteflies. RESULTS Residual toxicity tests on glass showed that E. formosa adults were susceptible (over 98% mortality after 6 h treated) to field concentrations of the tested neonicotinoids (imidacloprid, acetamiprid, nitenpyram and thiamethoxam), abamectin, cyantraniliprole, and sulfoxaflor at their field concentrations. Pyriproxyfen was harmless to both adult and pupae of E. formosa. A risk quotient analysis showed that toxicity of pyriproxyfen to E. formosa adults was the lowest, followed by acetamiprid and cyantraniliprole. In the leaf residues test, mortality of E. formosa adults under all insecticides decreased when the residue age increased. Interestingly, E. formosa experiencing contact with the residues of most insecticides, except pyriproxyfen and abamectin, parasitized significantly more hosts 5‐days after treatment, suggesting a hormetic effect on parasitism. CONCLUSION The risk assessment of insecticides indicated that pyriproxyfen and cyantraniliprole were the least toxic to E. formosa. Our results suggest that the inclusion of the insecticides in sustainable integrated pest management programs of whiteflies should be carefully evaluated on a case‐by‐case basis. © 2019 Society of Chemical Industry

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“…Tuta absoluta is attacked both in its native area and in invaded areas by several parasitoids (Salas Gervassio et al, 2019) and predators (Zappala et al, 2013; Ferracini et al, 2019). In fact, generalist predators have a major role in suppressing T. absoluta populations either naturally (Miranda et al, 1998), through artificial releases (Biondi et al, 2016; Ingegno et al, 2019), or when combined with egg parasitoids (Chailleux et al, 2013) and/or selective pesticides (Passos et al, 2018; Soares et al, 2019a,b).…”

Section: Introductionmentioning

confidence: 99%

Predation and reproduction of the generalist predator Nabis pseudoferus preying on Tuta absoluta

Mahdavi¹,

Madadi²,

Biondi

2020

Entomologia Exp Applicata

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The damsel bug, Nabis pseudoferus Remane (Hemiptera: Namidae), is a generalist predator of small arthropods, including key insect pests of vegetable crops. In this study, we characterized the predation and development of various N. pseudoferus life stages when preying on the eggs and first‐ and fourth‐instar nymphs of the invasive South American tomato pinworm, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). These findings were compared to those of the bug’s common prey, cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae). Of the life stages tested, females showed the highest predation rate on all tested prey, due to their high longevity, large body, and great energy requirements for reproduction. The predator’s oviposition rate was clearly influenced by prey type, and was highest when feeding on fourth instars of T. absoluta. Considering the zoophytophagy of most of the life stages of other mirid species of tomato, and the lower propensity of N. pseudoferus to feed on plants, these results show that this species can be considered as a key indigenous natural enemy for sustainable pest control packages against T. absoluta in newly invaded areas.

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Lethal, sublethal and transgenerational effects of insecticides on Macrolophus basicornis, predator of Tuta absoluta

Cited by 70 publications

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Botanical insecticide and natural enemies: a potential combination for pest management against Tuta absoluta

Botanical insecticide and natural enemies: a potential combination for pest management against Tuta absoluta

Selectivity of novel and traditional insecticides used for management of whiteflies on the parasitoid Encarsia formosa

Predation and reproduction of the generalist predator Nabis pseudoferus preying on Tuta absoluta

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