Selectivity of different biological products to the egg parasitoid Telenomus remus (Hymenoptera: Platygastridae)

Amaro, Junio Tavares; Bueno, Adeney de Freitas; Neves, Pedro Manuel Oliveira Janeiro; Silva, Débora Mello da; Pomari-Fernandes, Aline; Favetti, Bruna Magda

doi:10.1016/j.rbe.2018.04.003

Cited by 8 publications

(6 citation statements)

References 4 publications

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“…On the other hand, this differs from the effect on the larval parasitoids E. tejanus and E. mundus 41 with a higher exposure to the chemical. The classification of mycoinsecticides as innocuous to C. noackae viability on T. peregrinus eggs parasitized at one and 10 days agrees with that observed for Palmistichus elaeisis Delvare & LaSalle, Tetrastichus howardi Olliff and Trichospilus diatraeae Cherian & Margabandhu (Hymenoptera: Eulophidae) 43 and for Telenomus remus Nixon (Hymenoptera: Platygastridae) 44 , due to the specificity of the entomopathogenic fungi 45 without impact on the development of egg parasitoids.…”

Section: Discussionsupporting

confidence: 81%

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: 81%

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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“…34,58,62 Biological insecticides are an efficient alternative to chemical insecticides to control a number of pests. [73][74][75][76] However, in the current study, both Bt and MbNPV had effects on C. maginivantris, causing a high parasitic rate, a low femaleto-male ratio, a small body size, and a short developmental duration in F 1 and F 2 generation wasps. Dhillon and Sharma 77 reported that Bt toxins reduced the adaptability of Campoletis chlorideae Uchida (Hymenoptera: Ichneumonidae), although these toxins were not detected in the parasitoid adults fed on honey intoxicated with 0.05% Bt.…”

Section: Discussioncontrasting

confidence: 58%

Transgenerational hormesis and sublethal effects of five key insecticides for controlling Spodoptera frugiperda on its endoparasitoid Cotesia marginiventris

Hou,

Zang,

Lü

et al. 2023

Pest Management Science

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BACKGROUNDThe endoparasitoid Cotesia marginiventris (Cresson) is a promising biological control agent of the fall armyworm (FAW) Spodoptera frugiperda (Smith). Because the application of insecticides is one of the prime choices in pest management, we evaluated the sublethal and transgenerational effects of the five key insecticides—chlorantraniliprole, emamectin benzoate, spinetoram, Bacillus thuringiensis (Bt), and Mamestra brassicae nucleopolyhedrovirus (MbNPV)—on the parasitoid.ResultsExposure to five insecticides at a concentration causing 10% mortality (LC10) caused hormetic effects in the parent generation (F0) by increasing the parasitism and reducing the immature duration. Interestingly, the hormetic response was also observed in the offspring generation indirectly exposed to the insecticides. Furthermore, insecticides increased the parasitism rate by 6.32–14.73% in the F1 generation, which was similar to that of the F0 generation (3.96–11.81%) compared with the control. No significant adverse effect was observed on the number of emerged parasitoids of the F1 and F2 generations. However, insecticides had a detrimental impact on body size and fecundity in the F1 and F2 generations, which showed a small body size with shorter hind tibiae and a significant reduction in the female ratio compared with the control; the exception was that chlorantraniliprole significantly improved the female ratio in the F2 generation.ConclusionsFive insecticides at LC10 induced transgenerational hormetic and sublethal effects on C. marginiventris. Our results provide a scientific basis for a better understanding of the long‐term impacts of insecticides at sublethal doses on parasitoids, facilitating the development of improved integrated pest management programs for FAW control. © 2023 Society of Chemical Industry.

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“…Recently conducted studies have demonstrated that numerous biopesticides are available for FAW control, some of which are showing good efficacy (Babendreier et al 2020b;Guo et al 2020;Bateman et al 2021). These are generally harmless to parasitoids and some have been explicitly tested against T. remus (Amaro et al 2018;Silva et al 2016). However, even among the synthetic insecticides, active ingredients belonging to the group of Insect Growth Regulators (IGRs), such as diflubenzuron, flufenoxuron and methoxyfenozide, are relatively more selective and viable options to control lepidopteran pests in conjunction with T. remus whenever necessary.…”

Section: Telenomus Remus Release Strategiesmentioning

confidence: 99%

The use of Telenomus remus (Nixon, 1937) (Hymenoptera: Scelionidae) in the management of Spodoptera spp.: potential, challenges and major benefits

et al. 2022

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Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae), also known as fall armyworm (FAW) is a polyphagous pest which can cause significant losses and is considered a global threat to different crops and a risk to food security. Currently, in maize, the pest is predominantly controlled by pesticides or transgenic events. However, the use of biological control agents is considered the most sustainable and preferred method of control, providing high effectiveness. Among the various natural enemies reported for FAW, the egg parasitoid Telenomus remus has gained most interest, and has been mass released against FAW in the Americas for many years. In addition to FAW, other armyworms of the genus Spodoptera often cause high crop damage and may be controlled using T. remus. Among other important aspects, this paper presents a review on T. remus mass rearing techniques, estimated costs of mass production, and release strategies. Due to the recent invasion of FAW in Africa, Asia, and Australia T. remus provides good opportunities for the establishment of an augmentative biological control program, reinforcing sustainable production of major crops such as maize in affected countries.

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Selectivity of different biological products to the egg parasitoid Telenomus remus (Hymenoptera: Platygastridae)

Cited by 8 publications

References 4 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)

Transgenerational hormesis and sublethal effects of five key insecticides for controlling Spodoptera frugiperda on its endoparasitoid Cotesia marginiventris

The use of Telenomus remus (Nixon, 1937) (Hymenoptera: Scelionidae) in the management of Spodoptera spp.: potential, challenges and major benefits

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