Annals of the Entomological Society of America (2001) 94, 743-749

Chang-Chi Chu, Thomas P. Freeman, James S. Buckner, Thomas J. Henneberry, Dennis R. Nelson and Eric T. Natwick (2001)
Susceptibility of upland cotton cultivars to Bemisia tabaci biotype B (Homoptera: Aleyrodidae) in relation to leaf age and trichome density
Annals of the Entomological Society of America 94 (5), 743-749
Abstract: The relationships between leaf trichome densities, leaf age, and sweetpotato whitefly, Bemisia tabaci (Gennadius) biotype B, infestations of 13 upland cotton, Gossypium hirsutum L., cultivars were investigated in 1990 and 2000. Stoneville 474 supported higher numbers of B. tabaci biotype B eggs, nymphs and adults, and also had higher numbers of stellate trichomes on abaxial leaf surfaces compared with other cotton cultivars. Siokra L-23, in general, had fewer stellate trichomes and also fewer whiteflies. However, the positive trichome–whitefly density relationships were affected by the ages of leaves from different main stem cotton nodes. The youngest leaves on main stem node 1 below the terminal for all cultivars had higher numbers of stellate trichomes but fewer whiteflies compared with older leaves.
(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): Chang Chi Chu, Eric T. Natwick

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	Cotton (Gossypium)