Safety of Hyphomycete Fungi as Microbial Control Agents

Vestergaard, Susanne; Cherry, Andrew; Keller, Siegfried; Goettel, Mark S.

doi:10.1007/978-94-017-1441-9_3

Cited by 62 publications

(44 citation statements)

References 71 publications

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“…Inglis et al (1995) reportaram que a chuva pode afetar a persistência de B. bassiana na folhagem. Os conídios de B. bassiana são mais persistentes quando depositados no solo (VESTERGAARD et al, 2003). Inglis et al (1997) relataram que, depois de um inicial declínio nos primeiros 20 dias após a aplicação dos conídios, a persistência se estabiliza por aproximadamente 200 dias.…”

Section: Persistênciaunclassified

SELEÇÃO DE ISOLADOS DE FUNGOS ENTOMOPATOGÊNICOS PARA O CONTROLE DE Hedypathes betulinus E AVALIAÇÃO DA PERSISTÊNCIA

Leite¹,

Iede²,

Penteado³

et al. 2011

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ResumoHedypathes betulinus (KLUG, 1825) (Coleoptera: Cerambycidae) é a principal praga da cultura da ervamate. Para o seu controle, avaliou-se em laboratório e campo a utilização de fungos entomopatogênicos. Em laboratório, foi avaliada a infectividade de isolados dos fungos Beauveria bassiana (Bals.) Vuillemin, 1912; B. brongniartii (Sacc.) conídios/mL, variando de 6x10 5 a 5x10 6 conídios/mL. Foi avaliada a persistência do isolado CG 716 de B. bassiana formulado à base de óleo emulsionável em campo, verificando-se alta mortalidade nas primeiras três semanas após a aplicação do fungo, variando de 95 a 78%, decaindo para 65 a 47%, um e dois meses após a aplicação, respectivamente. Palavras-chave: Controle biológico; broca-da-erva-mate; CL 50 . Abstract Entomopathogenic fungi in the control of Hedypathes betulinus and evaluation of persistence.Hedypathes betulinus (KLUG, 1825) (Coleoptera: Cerambycidae) is the main pest of "erva-mate" (Ilex paraguariensis) culture. Focusing its control, it was evaluated in laboratory and field the entomopathogenic fungi using. In laboratory, it was evaluated the infectiveness of the strains of the following fungi: Beauveria bassiana (Bals.) Vuillemin, B. brongniartii (Sacc.) Petch, Metarhizium anisopliae (Metsch.), Sorokin and Paecilomyces (= Isaria) sp. Bainier, in adults specimen of H. betulinus. The insects were immersed in a conidial suspension at a concentration of 10 7 conidia mL -1 . After the application the insects had been kept at laboratory for mortality register. It was verified that B. bassiana (CG 716) was more infective, reaching to 100% of mortality. It estimated LC 50 of isolated CG 716 of B. bassiana with five concentrations and a variation of l0 5 to l0 9 conidia mL -1, along the control plot. The estimated LC 50 was 2,0 x 10 6 conidia mL -1 , ranging from 6 x 10 5 to 5 x 10 6 conidia mL -1. The persistence of strain CG 716 of B. bassiana -formulate oil was evaluated in field, producing the highest mortality, at the first three weeks after the application of the fungus, with a variance of 95 to 78 %, with a decreasing of 65 to 47% , along one and two months after the application , respectively.

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Section: Persistênciaunclassified

SELEÇÃO DE ISOLADOS DE FUNGOS ENTOMOPATOGÊNICOS PARA O CONTROLE DE Hedypathes betulinus E AVALIAÇÃO DA PERSISTÊNCIA

Leite¹,

Iede²,

Penteado³

et al. 2011

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“…To control PRM, a fungus is needed that affects PRM and/or its eggs and thus prevents their multiplication. A very important aspect is safety to non-targets, such as humans, poultry and eggs, but the record of these fungi is excellent in this (Vestergaard et al, 2003) and safe isolates will be available. The selected fungi should be able to survive in PRM and the ecosystem of PRM (e.g.…”

Section: Alternative Methodsmentioning

confidence: 99%

Control methods for Dermanyssus gallinae in systems for laying hens: results of an international seminar

Mul

Niekerk

Chirico

et al. 2009

World's Poultry Science Journal

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This paper reports the results of a seminar on poultry red mite (PRM), Dermanyssus gallinae. Eighteen researchers from eight European countries discussed life cycle issues of the mite, effects of mites on hens and egg production, and monitoring and control methods for PRM in poultry facilities. It was determined that PRM probably causes more damage than envisaged, with the cost in The Netherlands alone reaching 11 million euro per annum. However a great deal is still unknown about PRM (e.g. reproduction, survival methods, etc.) and that PRM monitoring is an important instrument in recognising and admitting the problem and in taking timely measures. Currently, the most promising control method combines heating the hen house in combination with chemical treatments. Future areas of development which show promise include the use of entomopathogenic fungi, vaccination and predatory mites. The final aim is to solve the problem of D. gallinae in housing systems for laying hens.

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“…Accumulated experience by researchers and practitioners indicates that MCAs used in augmentation biological control can give effective pest control with minimal detectable negative impact on the environment (Vestergaard et al, 2003). But there is a lack of metaanalyses in the scientific literature of the long term impact of these agents.…”

Section: Environmental Safety Considerations For Microbial Pest Contrmentioning

confidence: 99%

Microbial biopesticides for integrated crop management: an assessment of environmental and regulatory sustainability

Chandler

Davidson

Grant

et al. 2008

Trends in Food Science & Technology

148

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Safety of Hyphomycete Fungi as Microbial Control Agents

Cited by 62 publications

References 71 publications

SELEÇÃO DE ISOLADOS DE FUNGOS ENTOMOPATOGÊNICOS PARA O CONTROLE DE Hedypathes betulinus E AVALIAÇÃO DA PERSISTÊNCIA

SELEÇÃO DE ISOLADOS DE FUNGOS ENTOMOPATOGÊNICOS PARA O CONTROLE DE Hedypathes betulinus E AVALIAÇÃO DA PERSISTÊNCIA

Control methods for Dermanyssus gallinae in systems for laying hens: results of an international seminar

Microbial biopesticides for integrated crop management: an assessment of environmental and regulatory sustainability

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