Comparative susceptibility of thirteen selected pesticides to three different insect egg parasitoid Trichogramma species

Cheng, Shenhang; Lin, Rong-Guang; Wang, Limin; Qiu, Qianying; Qu, Mei; Ren, Xiaodong; Zong, Fulin; Jiang, Hui; Yu, Caihong

doi:10.1016/j.ecoenv.2018.09.050

Cited by 31 publications

(17 citation statements)

References 34 publications

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“…The findings of lower C. noackae parasitism in T. peregrinus eggs treated with bifenthrin agree with reports that this compound is slightly to moderately harmful to Trichogramma chilonis Ishii, Trichogramma ostriniae Pang & Chen , and Trichogramma dendrolimi Matsumura (Hymenoptera: Trichogrammatidae) 33 and harmful to Encarsia formosa Gahan, Encarsia pergandiella Howard (Hymenoptera: Aphelinidae) 34 , Theocolax elegans Westwood (Hymenoptera: Pteromalidae) 35 , Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae) 36 and Telenomus podisi Ashmead (Hymenoptera: Platygastridae) 37 , a common impact related to the pyrethroid action mode 23 . The effect of M. anisopliae , being slightly harmful to C. noackae parasitism on T. peregrinus eggs, differs from that reported for Spalangia cameroni Perkins (Hymenoptera: Pteromalidae), without reduction of its total female reproduction 38 , and innocuous to Trichogramma pretiosum Riley and T. galloi (Hymenoptera: Trichogrammatidae) parasitism 29 , 39 .…”

Section: Discussionsupporting

confidence: 90%

Selectivity of mycoinsecticides and a pyrethroid to the egg parasitoid Cleruchoides noackae (Hymenoptera: Mymaridae)

Domingues

Becchi

Velozo

et al. 2020

Sci Rep

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plants of the genus Eucalyptus, cultivated in many countries, have great importance for the world economy. In Brazil, this culture occupies a total of 5.7 million hectares, but native and exotic insect pests can reduce its productivity. Thaumastocoris peregrinus carpintero & Dellapé (Hemiptera: Thaumastocoridae), an exotic Australian pest, damages Eucalyptus plants. Biological control using the egg parasitoid Cleruchoides noackae Lin & Huber (Hymenoptera: Mymaridae), Heteroptera predators and entomopathogenic fungi, such as Beauveria bassiana and Metarhizium anisopliae, have potential for managing T. peregrinus. chemical insecticides, including bifenthrin and acetamiprid + bifenthrin, also control this insect. the compatibility of chemical and biological control methods favors integrated pest management. the objective of this study was to evaluate the selectivity of commercial products based on B. bassiana, M. anisopliae and the chemical bifenthrin on the parasitoid C. noackae and its parasitism on T. peregrinus eggs. the selectivity test followed the standards recommended by the international organization for Biological control (ioBc). Beauveria bassiana has selectivity to parasitism as well as viability, but was slightly harmful to C. noackae adults; M. anisopliae was innocuous to adults and to the viability of the offspring of this parasitoid, but it reduced the parasitism rate; and bifenthrin did not show selectivity to this parasitoid. The area of commercially planted forests in the world increased from 167.5 to 277.9 million hectares from 1990 to 2015 1. Brazil presently has 5.7 million hectares of Eucalyptus plantations with 24%, 17% and 15% of them in the states of Minas Gerais, São Paulo and Mato Grosso do Sul, respectively. The wood from these plantations is mainly destined for the pulp industry, with a production of 21 million tons in 2018 2,3. Insect pests of Australian origin detected in planted forests during the last three decades on a global scale may reduce Eucalyptus productivity 4. The bronze bug, Thaumastocoris peregrinus Carpintero & Dellapé (Hemiptera: Thaumastocoridae), was first detected in Brazil in 2008 in the states of São Paulo and Rio Grande do Sul, and has since dispersed to other Eucalyptus-producing states 5. This insect develops and produces fertile offspring on most Eucalyptus plantations in Brazil 6. Thaumastocoris peregrinus perforates and causes silvering, tanning, drying and defoliation from Eucalyptus plants 7. Biological control is the most widely-used method for managing T. peregrinus 8. This method includes the egg parasitoid Cleruchoides noackae Lin & Huber (Hymenoptera: Mymaridae), imported from Australia 8,9 , the predators Atopozelus opsimus Elkins (Hemiptera: Reduviidae) 10 and Supputius cincticeps Stäl (Heteroptera: Pentatomidae) 11,12 and entomopathogenic fungi 13,14. Beauveria bassiana and Metarhizium anisopliae, registered

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Section: Discussionsupporting

confidence: 90%

Selectivity of mycoinsecticides and a pyrethroid to the egg parasitoid Cleruchoides noackae (Hymenoptera: Mymaridae)

Domingues

Becchi

Velozo

et al. 2020

Sci Rep

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“…Insecticide exposure is consistently proposed to be one of the significant contributing factors ( 2 , 4 ). Insects that share habitats with pests may be exposed to lethal insecticide concentrations ( 5 , 6 ), but most nonpest species are probably exposed to doses that kill slowly, if at all. Studies have shown evidence of the impact of such doses on the behavior of insects ( 7 , 8 ), but the broader biological effects of exposure have not been systematically investigated.…”

mentioning

confidence: 99%

Low doses of the neonicotinoid insecticide imidacloprid induce ROS triggering neurological and metabolic impairments in Drosophila

Martelli

Zuo

Wang

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

107

112

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Declining insect population sizes are provoking grave concern around the world as insects play essential roles in food production and ecosystems. Environmental contamination by intense insecticide usage is consistently proposed as a significant contributor, among other threats. Many studies have demonstrated impacts of low doses of insecticides on insect behavior, but have not elucidated links to insecticidal activity at the molecular and cellular levels. Here, the histological, physiological, and behavioral impacts of imidacloprid are investigated in Drosophila melanogaster, an experimental organism exposed to insecticides in the field. We show that oxidative stress is a key factor in the mode of action of this insecticide at low doses. Imidacloprid produces an enduring flux of Ca2+ into neurons and a rapid increase in levels of reactive oxygen species (ROS) in the larval brain. It affects mitochondrial function, energy levels, the lipid environment, and transcriptomic profiles. Use of RNAi to induce ROS production in the brain recapitulates insecticide-induced phenotypes in the metabolic tissues, indicating that a signal from neurons is responsible. Chronic low level exposures in adults lead to mitochondrial dysfunction, severe damage to glial cells, and impaired vision. The potent antioxidant, N-acetylcysteine amide (NACA), reduces the severity of a number of the imidacloprid-induced phenotypes, indicating a causal role for oxidative stress. Given that other insecticides are known to generate oxidative stress, this research has wider implications. The systemic impairment of several key biological functions, including vision, reported here would reduce the resilience of insects facing other environmental challenges.

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“…Smith, 1797) (Lepidoptera: Noctuidae) [15]. These parasitoids use weeds as a hiding place, a source of water and nectar and a place for mating and resting [16]. Weed management by slashing bene ts the survival of this pest's natural enemies and protects the soil, but herbicides are used in places with high rates of weed infestation and growth [17].…”

Section: Introductionmentioning

confidence: 99%

High Tolerance of Trichogramma Pretiosum (Hymenoptera: Trichogrammatidae) to the Mixture of the Herbicides Nicosulfuron Plus Atrazine

Leite¹,

Cordeiro²,

Santos³

et al. 2020

Preprint

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Background: Maize, Zea mays (Poaceae), is one of the most important crops in the world, but defoliating caterpillars (Lepidoptera) and weeds can reduce the productivity of this plant. The control of weeds in the maize crop in Brazil is mainly accomplished with nicosulfuron- and atrazine-based herbicides, and of lepidopteran pest eggs with use of several species of Trichogrammatidae (Hymenoptera) parasitoids released. The objective of this study was to evaluate the rates of parasitism and emergence of females and the sex ratio (%) of 10 Trichogrammatidae species, in a free-choice test, submitted to a mixture of the herbicides Sanson 40 SC® (a.i. nicosulfuron; dose: 30 g.ha–1) + Gesaprim 500 Ciba-Geigy® (a.i. atrazine; dose: 1500 g.ha–1) in the laboratory.Results: The parasitism rate (%) of Trichogramma acacioi Brun, Moraes & Soares, Trichogrammatoidea annulata de Santis, Trichogramma atopovirilia Oatman & Platner, Trichogramma bennetti Nagaraja & Nagarkatti, Trichogramma brunni Nagaraja, Trichogramma brasiliensis Ashmead, Trichogramma demoraesi Nagaraja, Trichogramma galloi Zucchi, and Trichogramma soaresi Nagaraja was lower with the herbicide mixture of nicosulfuron + atrazine than the control and, therefore, this mixture was considered to be slightly harmful (i.e., class II of the International Organization for Biological and Integrated Control) to these parasitoids. This solution reduced the emergence rate (%) of female T. acacioi, T. annulata, T. atopovirilia, T. bruni, T. brasiliensis, T. demoraesi, T. galloi, and T. soaresi, being classified as harmless to T. soaresi, moderately harmful to T. galloi and slightly harmful to the other species. The herbicide mixture of nicosulfuron + atrazine reduced the sex ratio of T. acacioi, T. atopovirilia, T. bruni, T. demoraesi, T. galloi, and T. soaresi, being classified as harmless to T. annulata and T. brasiliensis, and slightly harmful to the other species.Conclusions: The biological parameters (i.e., rates of parasitism and emergence and the sex ratio) of T. pretiosum, followed by T. bennetti, T. annulata and T. brasiliensis were the least affected by the herbicide mixture. These species should be chosen for release, on pieces of paperboard with parasitized E. kuehniella eggs, in crops together with the application of nicosulfuron + atrazine.

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Comparative susceptibility of thirteen selected pesticides to three different insect egg parasitoid Trichogramma species

Cited by 31 publications

References 34 publications

Selectivity of mycoinsecticides and a pyrethroid to the egg parasitoid Cleruchoides noackae (Hymenoptera: Mymaridae)

Selectivity of mycoinsecticides and a pyrethroid to the egg parasitoid Cleruchoides noackae (Hymenoptera: Mymaridae)

Low doses of the neonicotinoid insecticide imidacloprid induce ROS triggering neurological and metabolic impairments in Drosophila

High Tolerance of Trichogramma Pretiosum (Hymenoptera: Trichogrammatidae) to the Mixture of the Herbicides Nicosulfuron Plus Atrazine

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