Bulletin of Entomological Research (2002) 92, 53-60

T. Kalule and D.J. Wright (2002)
Effect of cabbage cultivars with varying levels of resistance to aphids on the performance of the parasitoid, Aphidius colemani (Hymenoptera: Braconidae)
Bulletin of Entomological Research 92 (1), 53-60
Abstract: The effect of aphid resistance in plant cultivars on parasitism of Myzus persicae(Sulzer) and Brevicoryne brassicae (Linnaeus) by Aphidius colemaniViereck was investigated under laboratory conditions using three cultivars of common cabbage, Brassica oleracea var. capitata. Significantly greater aphid populations were found on cv. Derby Day (green-leaved, susceptible to both aphid species), regardless of the presence or absence of parasitoids, compared with cv. Minicole (green-leaved, partially resistant with antibiosis factors for B. brassicae) or cv. Ruby Ball (red-leaved, partially resistant with antixenosis factors for B. brassicae). Minicole had the greatest proportion of parasitized aphids and Derby Day the least. A significantly lower percentage of emerged parasitoids were recorded on Minicole for both aphid species compared with Derby Day and Ruby Ball. The implication of the results are discussed in relation to the integrated control of aphids.
(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): Denis J. Wright

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Myzus persicae	Cabbage (Brassica oleracea)
	Brevicoryne brassicae	Cabbage (Brassica oleracea)
Aphidius colemani (parasitoid)	Myzus persicae
Aphidius colemani (parasitoid)	Brevicoryne brassicae