Environmental Entomology (1992) 21, 1357-1361

Dan T. Quiring, Peter R. Timmins and Soon J. Park (1992)
Effect of variations in hooked trichome densities of Phaseolus vulgaris on longevity of Liriomyza trifolii (Diptera: Agromyzidae) adults
Environmental Entomology 21 (6), 1357-1361
Abstract: In laboratory studies, adults of Liriomyza trifolii (Burgess) were impaled by hooked trichomes on bean plants, Phaseolus vulgaris L. The incidence of adult capture was directly related to trichome density, and trichome densities varied with respect to location on a leaf surface, leaf surface (i.e., abaxial or abaxial), leaf size, leaf type (i.e., primary or secondary), and bean cultivar. Reductions in female longevity decrease herbivory by females and may also result in decreased oviposition. These results support the hypothesis that hooked trichomes are a general plant defense against herbivory by insects and that artificial selection for this characteristic could decrease plant susceptibility to several orders of insects pests.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Dan T. Quiring

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.
	Liriomyza trifolii	Beans (Phaseolus)