The DD-136 strain of Neoaplectana sp. as a potential biological control agent for the European elm bark beetle, Scolytus scolytus

Finney, Jean R.; Walker, Christopher

doi:10.1016/0022-2011(77)90165-3

Cited by 17 publications

(7 citation statements)

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“…While foliar application of EPNs is somewhat unusual, the literature does support the action of some isolates capable of infecting cerambycid larvae while still inside the stem of infected plants WALKER, 1977;WALKER, 1979;SOLTER et al, 2001), suggesting its potential as a strategy for controlling this pest. Further, Fallon et al (2004) evaluated control methods for Anoplophora glabripennis and showed that nematode isolates may have capacity for to move, attracted by host presence or host excrement, which serve as a stimulus for localization of larvae or even adult insect hosts in the plant, enabling application on aerial parts of the plant or areas of trunk infested with larvae.…”

Section: Greenhouse Experiments -Foliar Applicationmentioning

confidence: 99%

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Alves

Fanti

et al. 2017

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The intensive exploitation of "erva mate" (Ilex paraguariensis St. Hil.) (Aquifoliaceae) has favored the emergence of pests, including Hedypathes betulinus. We evaluated 18 isolates of entomopathogenic nematodes Steinernema and Heterorhabditis genera for control of H. betulinus adults, and tested nematode in-vivo replication capacity in Galleria mellonella L. (Lepidoptera: Pyralidae) larvae. We also evaluated the effect of adjuvants for foliar application, and the efficiency of nematode isolates selected in erva mate seedlings in the greenhouse via application to soil and plant shoots. The PI and CB40 isolates showed the hgh virulence (92.5% insect mortality by both). The PI isolate showed low productivity in G. mellonella larvae, thus only CB40 was used in subsequent tests. Only emulsified vegetable oil adjuvant was compatible with nematodes. Soil application of nematodes proved ineffective; however, shoot application on erva mate seedlings showed significant mortality (82.5%) after exposure to the CB40 isolate without adjuvant. Keywords: Steinernema, Heterorhabditis, Ilex paraguaiensis, biological control. ResumoA exploração intensiva da erva-mate (Ilex paraguariensis St. Hil.) (Aquifoliaceae), tem favorecido o surgimento de pragas incluindo a broca-da-erva-mate (Hedypathes betulinus). Visando seu controle avaliouse a virulência de 18 isolados de nematoides entomopatogênicos dos gêneros Steinernema e Heterorhabditis sobre adultos do inseto e a capacidade de multiplicação in vivo dos nematoides em larvas de Galleria mellonella L. (Lepidoptera: Pyralidae). Foi avaliado também o efeito de adjuvantes foliares e a eficiência dos nematoides selecionados sobre o inseto, em mudas de erva-mate, em casa de vegetação, com aplicação no solo e na parte aérea das plantas. Os isolados PI e CB40 foram os de maior virulência sobre o inseto (92,5% de mortalidade, para ambos), porém o isolado PI mostrou-se pouco produtivo em larvas de G. mellonella e apenas o isolado CB40 foi usado nos testes subsequentes. Dentre os adjuvantes avaliados, somente o óleo vegetal foi compatível com o nematoide. No teste em casa-de-vegetação com aplicação no solo não foi observada mortalidade dos insetos. A aplicação na parte aérea das mudas de erva-mate apresentou efeito significativo, em relação à testemunha, sendo que com o isolado CB40 aplicado sem adjuvante obteve-se mortalidade de 82,5%.

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Section: Greenhouse Experiments -Foliar Applicationmentioning

confidence: 99%

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Alves

Fanti

et al. 2017

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“…Strategies for biological control include attempts t o control the vectors (Doane, 1959;Doberski, 1978Doberski, , 1981Barson, 1976a,b;Finney & Walker, 1977) as well as the causal agent (Myers & Strobel, 1983;Scheffer, 1984). A recently tested control measure is the inoculation of trees with pellets of mycoparasitic fungi of the genus Trichoderma (Ricard, 1983) which have been shown to be effective in controlling silver leaf disease of fruit trees (Ricard, 1970;Dubos & Ricard, 1974;Corke, 1979).…”

Section: Introductionmentioning

confidence: 99%

Biological control of Dutch elm disease: Larvicidal activity of Trichoderma harzianum, T. polysporum and Scytalidium lignicola in Scolytus scolytus and S. multistriatus reared in artificial culture

Jassim

Foster

Fairhurst

1990

Annals of Applied Biology

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A method is described for the culture of larvae of Scolytus multistriatus and Scolytus scolytus on an artificial medium following exposure to cultures of microorganisms. In control cultures, a natural mortality rate of 21.2% was found for S. multistriatus and 17.6% for S. scolytus. The effects of Trichoderma harzianum, T. polysporum and Scytalidium Iignicola on fifth instar larvae of S. scolytus and S . multistriatus reared on the artificial medium were studied. The fungi were larvicidal and larval mortality was increased to more than 80% by inoculation of the larvae with the fungi. Another fungus, Phomopsis oblonga, had little effect on larvae of S. scolytus. The results are discussed in relation to mechanism of pathogenicity of the fungi and their potential use in the control of Dutch elm disease. It is proposed that with modifications, the method is applicable to other bark beetle pests.Entomology 48, 25-27.

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“…In addition to inoculative releases directly into larval habitats, infected adult Japanese beetles have potential for introducing EPNs into larval habitats and thereby maximizing nematode dispersal. Additionally, when S. feltiae were sprayed against bark beetle larvae, Scolytus scolytus, the nematode-infected adults in treated trees moved to control trees and infected the larvae in control group (Finney and Walker, 1977). This study showed that adult insects exposed to IJs can transmit the nematodes to new habitats.…”

Section: Discussionmentioning

confidence: 94%

A novel approach to biocontrol: Release of live insect hosts pre-infected with entomopathogenic nematodes

Gümüş

Karagöz

Shapiro‐Ilan

et al. 2015

Journal of Invertebrate Pathology

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The DD-136 strain of Neoaplectana sp. as a potential biological control agent for the European elm bark beetle, Scolytus scolytus

Cited by 17 publications

References 1 publication

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Biological control of Dutch elm disease: Larvicidal activity of Trichoderma harzianum, T. polysporum and Scytalidium lignicola in Scolytus scolytus and S. multistriatus reared in artificial culture

A novel approach to biocontrol: Release of live insect hosts pre-infected with entomopathogenic nematodes

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