Phytoparasitica (2003) 31, 27-38

S.G. Muigai, M.J. Bassett, D.J. Schuster and J.W. Scott (2003)
Greenhouse and field screening of wild Lycopersicon germplasm for resistance to the whitefly Bemisia argentifolii
Phytoparasitica 31 (1), 27-38
Abstract: Thirty-two accessions of wild tomato (Lycopersicon spp.) germplasm were evaluated for resistance to the whitefly Bemisia argentifolii Bellows and Perring in a greenhouse choice bioassay. Density data were recorded for the adaxial and abaxial leaf surfaces for (i) all life stages of B. argentifolii and (ii) types I, IV, V and VI trichomes. Individual plant selections (33 from 22 wild tomato accessions) with high resistance were subsequently tested in the field to verify the resistance found in the greenhouse screening. Resistance was defined by the density of all life stages of the whitefly observed on the eight leaflets sampled at nodes 5 and 7. Only type IV trichomes had a consistent (but low) and significant negative correlation between trichome density and whitefly density for various life stages. The highest whitefly resistance was observed in Lycopersicon pennellii accessions LA 716, LA 1340 and LA 2560. The most resistant L. hirsutum f. typicum accessions were LA 1777 and LA 1353.
(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): David J. Schuster, Jay W. Scott

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci biotype MEAM1	Tomato (Solanum lycopersicum)