Effects of entomopathogenic nematodes, Heterorhabditis bacteriophora (Poinar) and Steinernema carpocapsae (Weiser), in biological control of Agrotis segetum (Denis &amp; Schiffermüller) (Lepidoptera: Noctuidae)

Goudarzi, M Abdi; Moosavi, Mohammad Reza; Asadi, R.

doi:10.16970/ted.43220

Cited by 9 publications

(5 citation statements)

References 38 publications

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“…There are some differences known in terms of survival, pathogenicity and host range between indigenous and non-indigenous EPN species (Lacey and Georgis, 2012). Indigenous species of EPNs may be more successful in biocontrol as a consequence of compatibility to native habitats (Goudarzi et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of different entomopathogenic nematode species against the variegated cutworm, Peridroma saucia (Hubner) (Lepidoptera: Noctuidae)

Yüksel

Taskesen

Erarslan

et al. 2018

Egypt J Biol Pest Control

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Peridroma saucia (Hubner) (Lepidoptera: Noctuidae) is a polyphagous pest that attacks nearly all vegetable fields in Turkey. Entomopathogenic nematodes (EPNs) are successfully used as a biological control agent. The efficacy of four EPNs, Steinernema carpocapsae, S. feltia, Heterorhabditis bacteriophora and H. indica against the last instar larvae of the pest, was tested under laboratory conditions. Suspensions of nematodes were applied at four concentrations (10, 50, 100 and 200 infective juveniles/larva) at 25 ± 1°C. Mortality percent was evaluated 48 and 96 h post application. Mortality rate increased with increasing concentrations. The highest effect caused 70% mortality by H. bacteriophora and H. indica species after 48 h exposure time and the lowest mortality was 33% for Steinernema carpocapsae. There was no significant difference between virulence of Heterohabditis spp. and Steinernema spp. when tested against the larvae of P. saucia after 96 h exposure time. These results showed that EPNs have a significant potential in the biological control of P. saucia under controlled conditions.

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Section: Introductionmentioning

confidence: 99%

Effectiveness of different entomopathogenic nematode species against the variegated cutworm, Peridroma saucia (Hubner) (Lepidoptera: Noctuidae)

Yüksel

Taskesen

Erarslan

et al. 2018

Egypt J Biol Pest Control

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“…The highest concentration (500 IJs/ml) achieved the highest mortality. Goudarzi et al (2015) on a study of the effects of H. bacteriophora and S. carpocapsae as a biological control agents of Agrotis segetum (Lepidoptera) found that the highest larval mortality was achieved when EPNs were applied at a dose of 100 IJs/insect compared to 25, 50 and 75 IJs/insect. In another study by Dlamini et al (2019) , they reported that S. yirgalemense, H. noenieputensis and the exotic S. feltiae gave good control of banded fruit weevil (BFW), Phlyctinus callosus (Schönherr)(Coleoptera:Curculionidae) larvae at 100 IJs/insect.…”

Section: Discussionmentioning

confidence: 99%

“…Entomopathogenic nematodes (EPNs) are good alternatives to synthetic insecticides, are soil-dwelling organisms that attack insect pests that live in, on, or near the soil surface and can be used effectively to control important insect pests (Adams and Nguyen, 2002). EPNs in the families Steinernematidae and Heterorhabditidae do not affect non-target species, do not leave residues (Georgis et al, 2006) and are essential biocontrol agents used for controlling insect pests (Grewal and Georgis, 1999).…”

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confidence: 99%

Control of the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) larvae in laboratory using entomopathogenic nematodes from subtropical environment

Dlamini

Masarirambi

et al. 2020

Journal of Nematology

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Tomato (Solanum esculentum) is one of the vegetable crops grown by both smallholder and commercial farmers in the Kingdom of Eswatini. Tomato leaf miner, Tuta absoluta M. is a major insect pest of tomatoes resulting in reduced tomato yields throughout the country. The study investigated the virulence of two subtropical EPN species on T. absoluta larvae. Steinernema yirgalemense and S. jeffreyense at different concentrations (0, 20, 40, 60 IJs/insect) were screened for efficacy (i.e. mortality rate) against larvae of T. absoluta in laboratory bioassays. Results obtained showed that S. yirgalemense and S. jeffreyense were able to kill T. absoluta larvae without significant differences between the two EPN species in 24-well bioassay trays. Significantly higher (p < 0.05) mortality was observed when 60 IJs/ insect was used. The combination of S. yirgalemense at 60 IJs/ insect (100%) and S. jeffreyense at 60 IJs/insect (98.3%) resulted in significantly higher (p < 0.05) mortality, compared with the other four combinations of EPN and concentration tested. In the leaf bioassays, S. yirgalemense (58.8%) resulted in significantly higher (p < 0.05) mean mortality compared to S. jeffreyense (46.4%). Steinernema yirgalemense at 60 IJs/insect resulted in significantly higher mean mortality compared to the other EPN and concentration combinations in the leaf bioassay. The results indicated that both EPNs tested were effective against T. absoluta larvae. Steinernema yirgalemense at 60 IJs/insect can effectively find T. absoluta larvae inside leaf mines, but large-scale field trials are recommended to demonstrate the potential use of the biocontrol agent within integrated pest management programs.

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“…There are some differences known in terms of survival, pathogenicity and host range between indigenous and non-indigenous nematodes species. Indigenous species of nematodes may be more successful in biocontrol because of compatibility to native habitats [14,32].…”

Section: Assessment Of Dosage Effectivenessmentioning

confidence: 99%

Selection of Entomopathogenic Nematodes to Control Nymphs of <i>Haplaxius crudus</i> (Van Duzee) (Hemiptera: Cixiidae)

Guerrero¹

2019

AJE

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Haplaxius crudus transmits the pathogen that causes Lethal wilt (ML for its name in Spanish), one of the main diseases that affects oil palms in Colombia. In its nymphal stage it feeds from grasses present at the plantations, and adults feed on oil palm leaves. With the objective of controlling the nymphal stage of H. crudus, the effectiveness of the following entomopathogenic nematodes was assessed: Steinernema colombiense, S. websteri, Steinernema sp. 1, Steinernema sp. 2, Heterorhabditis bacteriophora, Heterorhabditis sp. (Gua 31), Heterorhabditis sp. (Gua 236), Heterorhabditis sp. (CPHsp1301) and Heterorhabditis sp. (CPHsp1302). Pathogenicity was assessed under laboratory conditions using Petri dishes with roots of Paspalum virgatum. Virulence was assessed using mesh houses with PVC tubes and plastic trays with P. virgatum. Once the most virulent nematode was selected, three dosage levels were assessed under simulated field conditions, in order to select the most effective dosage. All assessed nematode species were pathogenic to nymphs of H. crudus, and nymph stage IV was the most susceptible stage, with death rates of over 80%. Regarding virulence, there were statistically significant differences among treatments (P≤0.05), producing nematode death rates between 28.3 and 88.2%. Heterorhabditis sp. (CPHsp1301), obtained from the soil of palm plantations, was selected because it caused a mortality rate of 78.4% with at a dosage of 1300 IJ/cm 2 in the sprayed area. The results are promising and further research should be performed under commercial oil palm plantation conditions.

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Effects of entomopathogenic nematodes, Heterorhabditis bacteriophora (Poinar) and Steinernema carpocapsae (Weiser), in biological control of Agrotis segetum (Denis & Schiffermüller) (Lepidoptera: Noctuidae)

Cited by 9 publications

References 38 publications

Effectiveness of different entomopathogenic nematode species against the variegated cutworm, Peridroma saucia (Hubner) (Lepidoptera: Noctuidae)

Effectiveness of different entomopathogenic nematode species against the variegated cutworm, Peridroma saucia (Hubner) (Lepidoptera: Noctuidae)

Control of the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) larvae in laboratory using entomopathogenic nematodes from subtropical environment

Selection of Entomopathogenic Nematodes to Control Nymphs of <i>Haplaxius crudus</i> (Van Duzee) (Hemiptera: Cixiidae)

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Effects of entomopathogenic nematodes, Heterorhabditis bacteriophora (Poinar) and Steinernema carpocapsae (Weiser), in biological control of Agrotis segetum (Denis & Schiffermüller) (Lepidoptera: Noctuidae)

Cited by 9 publications

References 38 publications

Effectiveness of different entomopathogenic nematode species against the variegated cutworm, Peridroma saucia (Hubner) (Lepidoptera: Noctuidae)

Effectiveness of different entomopathogenic nematode species against the variegated cutworm, Peridroma saucia (Hubner) (Lepidoptera: Noctuidae)

Control of the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) larvae in laboratory using entomopathogenic nematodes from subtropical environment

Selection of Entomopathogenic Nematodes to Control Nymphs of &lt;i&gt;Haplaxius crudus&lt;/i&gt; (Van Duzee) (Hemiptera: Cixiidae)

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Selection of Entomopathogenic Nematodes to Control Nymphs of <i>Haplaxius crudus</i> (Van Duzee) (Hemiptera: Cixiidae)