Journal of Entomological Science (1998) 33, 270-281

J.C. Snyder, A.M. Simmons and R.R. Thacker (1998)
Attractancy and ovipositional response of adult Bemisia argentifolii (Homoptera : Aleyrodidae) to type IV trichome density on leaves of Lycopersicon hirsutum grown in three day-length regimes
Journal of Entomological Science 33 (3), 270-281
Abstract: Clonal plants of six accessions of Lycopersicon hirsutum Humb. and Bonpl., a wild relative of tomato, were grown in three day-length regimes. Clones of an accession grown in different day-length regimes were genetically identical but differed in density of type IV and type VI trichomes on their leaves. Leaves on these plants were then evaluated for resistance to whiteflies (Bemisia argentifolii.Bellows and Perring) in choice and non-choice bioassays. Plants grown under short days had elevated type IV density, reduced type VI trichome density, and were less attractive to whiteflies. Correlation and covariance analysis supported the hypothesis that high type IV trichome density resulted in reduced attractancy, especially on plants grown under short days.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Alvin M. Simmons

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