Ecological Entomology (2001) 26, 404-410

M. Plantegenest, J.S. Pierre, C.A. Dedryver and P. Kindlmann (2001)
Assessment of the relative impact of different natural enemies on population dynamics of the grain aphid Sitobion avenae in the field
Ecological Entomology 26 (4), 404-410
Abstract: 1. A detailed population dynamics model was devised to provide a tool for integrated pest management against the cereal aphid Sitobion avenae on winter wheat.
2. This model allowed investigation of the relative impact of different natural enemies on aphid population dynamics.
3. The output of the model was compared with a set of data collected in the western part of France from 1976 to 1986.
4. Fungal diseases accounted for 75% of the reduction in peak aphid density and were the key factor acting on aphid dynamics in this region.
5. This study highlights the importance of detailed population dynamics modelling of keystone species, like aphids, for elucidation of the relations between the keystone species and other species associated in the ecosystem.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Pavel Kindlmann, Charles-Antoine Dedryver

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
population dynamics/ epidemiology
Research topic(s) for beneficials or antagonists:
population dynamics/epizootiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Sitobion avenae	Wheat (Triticum)	France