Non-target toxicity of nine agrochemicals toward larvae and adults of two generalist predators active in peach orchards

Armas, Franciele Silva de; Grützmacher, Anderson Dionei; Nava, Dori Edson; Pasini, Rafael Antônio; Rakes, Matheus; Pazini, Juliano de Bastos

doi:10.1007/s10646-020-02177-5

Cited by 8 publications

(8 citation statements)

References 60 publications

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“…Ecotoxicology studies are often done under laboratory settings focusing on a single species, assessing short‐term mortality and lethal concentrations (De De Armas et al, 2020; Guedes et al, 2016). Other studies focus on intraguild interactions between species (Hoogendoorn & Heimpel, 2004; Mirande et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Combined effects of insecticide and IGP on native and invasive ladybeetles in apple orchard

Donder

Cormier

García

et al. 2022

J Applied Entomology

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The Asian ladybeetle Harmonia axyridis Pallas is an invasive species commonly found in Canadian apple orchards. It threatens native ladybeetles through exploitative competition and intraguild predation (IGP), including the 12 spotted ladybeetle Coleomegilla maculata DeGeer (Gagnon, Heimpel and Brodeur, 2011). Both species are exposed to novaluron, a reduced risk insecticide used against the codling moth Cydia pomonella (L.), the primary pest in apple orchards. Previous research showed that novaluron is highly toxic for the invasive H. axyridis, but it is less toxic for the indigenous C. maculata. Novaluron reduces the adaptive value of IGP for H. axyridis but not for C. maculata. However, there is a lack of knowledge on the combined effect of novaluron and IGP outside laboratory conditions. This study explores under semi‐field conditions the effect of novaluron residues and IGP on the survival of H. axyridis and C. maculata larvae. IGP was assessed considering third instar larvae as predators. Results showed that novaluron was toxic for first instar larvae of both species after 10 days of exposure. When H. axyridis was the intraguild predator, novaluron increased the survival of the intraguild preys. Novaluron did not change the outcome of the IGP when C. maculata was the intraguild predator. These results indicate that novaluron can change the competition outcome between the invasive H. axyridis and a native ladybeetle species. This is the first demonstration that intraguild predation and competition may be greatly altered in the presence of pesticides.

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Section: Introductionmentioning

confidence: 99%

“…Ecotoxicology studies are often done under laboratory settings focusing on a single species, assessing short-term mortality and lethal concentrations (De De Armas et al, 2020;Guedes et al, 2016).…”

mentioning

confidence: 99%

Combined effects of insecticide and IGP on native and invasive ladybeetles in apple orchard

Donder

Cormier

García

et al. 2022

J Applied Entomology

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“…As biological control is very important for controlling pest populations, insecticide use should not compromise but rather complement biocontrol in reducing pest populations and reducing the risk of pest outbreaks (Fontes et al ., 2018). Thus, the potentially adverse effects of pesticides on natural enemies require investigation of their side effects in pest management programs (De Armas et al ., 2020; Rajaee et al ., 2022).…”

Section: Introductionmentioning

confidence: 99%

Potential demographic impact of the insecticide mixture between thiacloprid and deltamethrin on the cotton aphid and two of its natural enemies

Majidpour

Maroofpour²,

Ghane‐Jahromi³

2022

Bull. Entomol. Res.

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The use of pesticides impairs biological control in the agroecosystems and thus compromises the effectiveness of natural enemies against populations of pest species. The concerns over pesticides should expand beyond mortality and encompass their sublethal effects and their consequences to the target insect species and natural enemies to aid in our understanding of the potential and consequential use of these compounds. The present study aimed to determine the effects of an insecticide mixture on life-history and demographic parameters of the cotton aphid Aphis gossypii Glover (Hemiptera: Aphididae) and two of its main parasitoids – Aphidius flaviventris Kurdjumov (Hymenoptera: Aphelinidae) and Aphidius colemani Viereck (Hymenoptera: Braconidae). Based on the obtained results, thiacloprid + deltamethrin in its lethal concentration dose 20% of the pest population (LC20) significantly affected the cotton aphid for two generations, increasing developmental time and demographic parameters. The LC20 manifested changes in many demographic parameters of the parasitoid A. flaviventris. This concentration also increased preadult and female longevity, total pre-ovipositional period, and mean generation time (T) of A. colemani, but no other demographic parameters were affected. Nonetheless, the insecticide mixture did not affect the parasitism rate of A. colemani. Thus, the thiacloprid + deltamethrin mixture significantly impaired the cotton aphid population and its parasitoid A. flaviventris. Therefore, the use of thiacloprid + deltamethrin is not encouraged for controlling the parasitoid A. flaviventris, but it is a relatively safe compound for A. colemani.

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“…The selectivity of diflubenzuron SC and WP, lufenuron, and triflumuron is possibly associated with the mode of action of chitin biosynthesis inhibitors. Growth regulating insecticides affect immature stages of insects throughout the molting process and, as a result, adults of non-target species, such as predatory insects, are rarely affected (De Armas et al 2020). However, despite their reduced lethal effect on adult mortality, these insecticides can negatively other life stages of the predator as eggs, pupae (Pasini et al 2018) and larvae (Pasini et al 2021).…”

mentioning

confidence: 99%

“…control ---0,00±0,00bA 0,00±0,00eA 0,00±0,00bA 0,00±0,00bA 0,00±0,00cdA 0,00±0,00eA beta-cyfluthrin 0,002 0,00±0,00bB 0,25±0,25eB 0,50±0,28bB 1,00±0,40bA 1,25±0,25cA 1,50±0,28cdeA diflubenzuron SC 0,012 0,25±0,25bA 0,50±0,50eA 0,25±0,25bA 0,50±0,50bA 0,25±0,25cdA 0,50±0,50deA diflubenzuron WP 0,012 0,00±0,00bA 0,00±0,00eA 0,00±0,00bA 0,00±0,00bA 0,00±0,00dA 0,00±0,00eA etofenprox 0,075 0,50±0,28bB 0,75±0,47deB 1,50±0,28bB 1,50±0,28bB 2,50±0,28bA 2,75±0,47bcA gamma-cyhalothrin 0,001 4,25±0,25aA 4,75±0,25abA 4,50±0,50aA 4,75±0,25aA 4,50±0,50aA 4,75±0,25abA imidacloprid + beta-cyfluthrin 0,037+0,004 3,25±0,75aA 3,50±0,64abA 4,25±0,25aA 4,75±0,25aA 4,50±0,28aA 5,00±0,00aA lambda-cyhalothrin 0,002 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA lufenuron 0,002 0,00±0,00bA 0,00±0,00eA 0,00±0,00bA 0,25±0,25bA 0,00±0,00dA 0,25±0,25eA methomyl 0,139 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA permethrin 0,012 3,00±0,40aB 3,25±0,25abcB 4,25±0,25aA 3,75±0,25aB 4,50±0,28aA 4,75±0,25aA thiamethoxam 0,009 3,50±0,50aB 2,75±0,47bcdB 4,50±0,50aA 4,50±0,28aA 5,00±0,00aA 4,50±0,28abA thiamethoxam + lambda-cyhalothrin A 0,010+ 0,007 3,75±0,25aA 4,00±0,70abA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA 5,00±0,00aA thiamethoxam + lambda-cyhalothrin B 0,010+ 0,007 3,5±00,95aA 3,25±0,62abcA 4,00±0,57aA 4,25±0,47aA 5,00±0,00aA 5,00±0,00aA triflumuron 0,007 0,00±0,00bA 0,00±0,00eA 0,00±0,00bA 0,00±0,00bA 0,00±0,00dA 0,00±0,00eA zeta-cypermethrin 0,026 0,75±0,47bA 1,25±0,75cdeA 1,00±0,57bA 1,25±0,75aA 1,25±0,47cA 2,25±1,03cdA of transmission of nerve impulses between the different orders of insects (Amarasekare et al 2016). These insecticides can affect not only Coccinellids but also other important orders of predators such as Neuroptera (De Armas et al 2020;Pasini et al 2021) and Hemiptera (Machado et al 2019;Morales et al 2019).…”

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Lethal effects of insecticides on adults of Eriopis connexa (Germar, 1824) (Coleoptera: Coccinellidae)

Pasini¹,

Rakes

Armas

et al. 2022

Entomol Commun

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The predator Eriopis connexa (Germar, 1824) (Coleoptera: Coccinelidae), is an important biological control agent in wheat fields. In this work, we evaluated the lethal effects of fifteen insecticides used in the wheat crop on adults of the predator E. connexa, using the methodology proposed by International Organization for Biological and Integrated Control (IOBC). Sublethal effects have not been evaluated. The insecticides were sprayed on glass plates that were used to set up the exposure arenas. The chitin synthesis inhibitors diflubenzuron SC, diflubenzuron WP, lufenuron, triflumuron, and the pyrethroid beta-cyfluthrin were considered harmless to adults of the predator and should have their use prioritized. On the other hand, methomyl, lambda-cyhalothrin, thiamethoxam + lambda-cyhalothrin A and B were considered harmful to E. connexa and should be avoided when adults of the predator are present in the crop.

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Non-target toxicity of nine agrochemicals toward larvae and adults of two generalist predators active in peach orchards

Cited by 8 publications

References 60 publications

Combined effects of insecticide and IGP on native and invasive ladybeetles in apple orchard

Combined effects of insecticide and IGP on native and invasive ladybeetles in apple orchard

Potential demographic impact of the insecticide mixture between thiacloprid and deltamethrin on the cotton aphid and two of its natural enemies

Lethal effects of insecticides on adults of Eriopis connexa (Germar, 1824) (Coleoptera: Coccinellidae)

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