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The impact of gorse thrips, ryegrass competition, and simulated grazing on gorse seedling performance in a controlled environment

Citation

Davies, JT and Ireson, J and Allen, GR, The impact of gorse thrips, ryegrass competition, and simulated grazing on gorse seedling performance in a controlled environment, Biological Control, 32, (2) pp. 280-286. ISSN 1049-9644 (2005) [Refereed Article]

DOI: doi:10.1016/j.biocontrol.2004.10.007

Abstract

Biological control agents of weeds are often used in conjunction with other management practices to reduce the negative impacts of invasive weeds. When assessed in a factorial glasshouse experiment, a combination of gorse thrips, ryegrass competition, and simulated grazing (manual clipping) resulted in a gorse seedling mortality of 93% compared to no mortality in the untreated control. Mortality was 23 and 33% when ryegrass competition was combined with one additional factor of either thrips or grazing, respectively. Individual factors and the combination of gorse thrips and grazing did not cause any seedling mortality. The shoot dry weight of gorse seedlings was reduced by ryegrass competition (96%), simulated grazing (74%), and gorse thrips (57%). The root dry weight of gorse seedlings was also reduced by simulated grazing (70%) and gorse thrips (60%) but the effect of ryegrass competition was not measured. The interactions between treatments and the role of multiple control tactics within an integrated weed management program are discussed. © 2004 Elsevier Inc. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Population Ecology
Objective Division:Environment
Objective Group:Control of Pests, Diseases and Exotic Species
Objective Field:Control of Animal Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments
Author:Davies, JT (Mr Jamie Davies)
Author:Ireson, J (Dr John Ireson)
Author:Allen, GR (Associate Professor Geoff Allen)
ID Code:29358
Year Published:2005
Web of Science® Times Cited:11
Deposited By:Agricultural Science
Deposited On:2005-08-01
Last Modified:2006-06-21
Downloads:0

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