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Control of a major pest of forestry, Hylobius abietis, with entomopathogenic nematodes and fungi using eradicant and prophylactic strategies

Williams, Christopher D. ; Dillon, Aoife B. ; Harvey, Christopher D. ; Hennessy, Roseanne ; Namara, Louise Mc ; Griffin, Christine T.

Forest ecology and management, 2013-10, Vol.305, p.212-222 [Periódico revisado por pares]

Kidlington: Elsevier B.V

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Título:
Control of a major pest of forestry, Hylobius abietis, with entomopathogenic nematodes and fungi using eradicant and prophylactic strategies
Autor: Williams, Christopher D. ; Dillon, Aoife B. ; Harvey, Christopher D. ; Hennessy, Roseanne ; Namara, Louise Mc ; Griffin, Christine T.
Assuntos: Animal and plant ecology ; Animal, plant and microbial ecology ; Beauveria bassiana ; Beauveria caledonica ; Biological and medical sciences ; Biological control ; Forestry ; Fundamental and applied biological sciences. Psychology ; Heterorhabditis downesi ; Phytopathology. Animal pests. Plant and forest protection ; Pine Weevil ; Protozoa. Invertebrates ; Steinernema carpocapsae ; Synecology ; Terrestrial ecosystems
É parte de: Forest ecology and management, 2013-10, Vol.305, p.212-222
Descrição: •Field trials to control pine weevil using EPN and EPF were conducted.•Treatments including EPN more efficacious than those not.•Effects of EPF and EPN were additive.•Native Beauveria sp. in three trials was identified as Beauveria caledonica in one.•Applied fungi can reach this cryptic pest at depths of up to 18cm. Hylobius abietis, a major problem for seedling survival on forested land, develops under the bark of stumps of felled conifers. We investigated the efficacy of entomopathogenic nematodes (EPN) and fungi (EPF) applied to stumps to suppress adult emergence. We performed five field trials over three years and assessed results through destructive sampling and emergence trapping. We used two strategies in application: eradicant, where treatments were applied after weevil colonisation and prophylactic, where treatments were applied prior to colonisation. At prophylactic sites no treatment significantly reduced weevil emergence. At all eradicant sites, treatments including nematodes were more efficacious than those not. EPF-only treatment did not significantly reduce weevil emergence compared to controls, but there was a non-significant (P=0.058) numerical reduction at one site. The effects of EPF and EPN were additive. There was evidence of mortality due to native Beauveria sp. at all three eradicant sites, identified as Beauveria caledonica at one. A proportion of weevils at depths of up to 18cm in the soil were infected by the applied Beauveria bassiana showing that applied fungi can reach this cryptic pest. If choice of EPF strain and application technologies are optimised, EPF may present a viable control method for pine weevil in the future.
Editor: Kidlington: Elsevier B.V
Idioma: Inglês

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Control of a major pest of forestry, Hylobius abietis, with entomopathogenic nematodes and fungi using eradicant and prophylactic strategies

Williams, Christopher D. ; Dillon, Aoife B. ; Harvey, Christopher D. ; Hennessy, Roseanne ; Namara, Louise Mc ; Griffin, Christine T.

Kidlington: Elsevier B.V

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