Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/7541

Appears in Collections:Computing Science and Mathematics Journal Articles
Peer Review Status: Refereed
Title: Modelling the efficacy of entomopathogenic nematodes in the regulation of invertebrate pests in glasshouse crops
Authors: Fenton, Andrew
Norman, Rachel
Fairbairn, Jonathan P
Hudson, Peter J
Contact Email: ran@cs.stir.ac.uk
Keywords: analytical model
biological control
density dependence
insect pathogen
stability analysis
Issue Date: Apr-2000
Publisher: John Wiley & Sons
Citation: Fenton A, Norman R, Fairbairn JP & Hudson PJ (2000) Modelling the efficacy of entomopathogenic nematodes in the regulation of invertebrate pests in glasshouse crops, Journal of Applied Ecology, 37 (2), pp. 309-320.
Abstract: 1. Entomopathogenic nematodes belonging to the families Heterorhabditidae and Steinernematidae are lethal obligate parasites of a wide range of invertebrate species. These nematodes exhibit many characteristics that make them ideal candidates as biological control agents of insect pests (rapid host death, high reproductive rates, easily mass-reared in vitro, easy application techniques). 2. However, at present, the number of pest species to which these nematodes are applied successfully is small. Clearly, there is a need to develop existing knowledge of the nematode into a more complete understanding of the nematode- pest system as a whole. 3. To consider the potential of entomopathogenic nematodes as biological control agents, we adopted a generalized analytical modelling approach and, using realistic parameter estimates, determined the conditions under which these nematodes can regulate a pest population. 4. Stability analyses suggested that entomopathogenic nematodes may not be capable of regulating a host population to a stable equilibrium. Long-term persistence of the host and nematode population is unlikely, due to the highly destabilizing effects of the parasite-host relationship. As such, these nematodes may be better suited to short-term control through inundative application techniques rather than long-term regulation. 5. This preliminary generalized model highlights areas where further work is needed. This includes estimation of the probability of nematode infection in the field, the effect of host size on the transmission cycle and the influence of spatial heterogeneity on stability.
Type: Journal Article
URI: http://hdl.handle.net/1893/7541
URL: http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2664.2000.00494.x/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+on+9+June+from+10%3A00-12%3A00+BST+%2805%3A00-07%3A00+EDT%29+for+essential+maintenance
DOI Link: http://dx.doi.org/10.1046/j.1365-2664.2000.00494.x
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: University of Stirling
Mathematics - CSM Dept
University of Stirling
University of Stirling

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