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Inundative pest control: How risky is it? A case study using entomopathogenic nematodes in a forest ecosystem

Harvey, CD and Williams, CD and Dillon, AB and Griffin, CT (2016) Inundative pest control: How risky is it? A case study using entomopathogenic nematodes in a forest ecosystem. Forest Ecology and Management, 380. pp. 242-251. ISSN 0378-1127

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Abstract

Entomopathogenic nematodes (EPN) are globally important inundative biological control agents. Their widespread use makes environmental risk assessment important, but very few comprehensive post-application risk assessments have been conducted for EPN. We apply a rigorous risk analysis procedure to the use of EPN applied in a forest ecosystem to suppress the large pine weevil (Hylobius abietis). In this synthesis, we provide a quantitative evaluation of five risk categories: (a) establishment, (b) dispersal, (c) host range, (d) direct non-target effects and (e) indirect non-target effects. A low level of risk was identified (35–51 out of a possible total of 125). Species exotic to the clear-fell forest ecosystem (Steinernema carpocapsae and Heterorhabditis downesi) were accorded a lower overall risk status than native species and strains (Steinernema feltiae), largely as a result of their shorter persistence in the target environment. We conclude that EPN are a low risk viable alternative control for pine weevil compared to the higher risk conventional control using pyrethroid or neonicotinoid insecticides. © 2016 Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: 07 Agricultural And Veterinary Sciences, 05 Environmental Sciences, 06 Biological Sciences
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QH Natural history
Q Science > QH Natural history > QH301 Biology
Divisions: Natural Sciences and Psychology
Publisher: Elsevier
Date Deposited: 03 Oct 2016 08:30
Last Modified: 03 Oct 2016 08:30
DOI or Identification number: 10.1016/j.foreco.2016.08.018
URI: http://researchonline.ljmu.ac.uk/id/eprint/4229

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