Persistent Link:
http://hdl.handle.net/10150/197517
Title:
Silverleaf Whitefly - Trichome Density Relationships on Selected Upland Cotton Cultivars
Author:
Chu, C. C.; Natwick, E. T.; Henneberry, T. J.
Affiliation:
USDA, ARS, Western Cotton Research Laboratory
Issue Date:
2000
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Cotton: A College of Agriculture Report
Abstract:
We studied silverleaf whitefly (SLW) and trichome density relationships on ten selected upland cotton cultivars: Deltapine #20B, 50B and 90B, NuCOTN 33B, Stoneville 474, Fibermax #819 and 832, Siokra L-23, and 89013-114 at Maricopa, in AZ, 1999. Whitefly and stellate trichome densities were counted on leaves on main stem leaf nodes #1, 3, 5 and 7 of each cultivar. Stoneville 474 had about 2-3 times more eggs, nymphs, and adults and also had 3-30 times more branched trichomes on abaxial leaf surfaces compared with the nine other cultivars. The top young leaves on node #1 had about 6 times more stellate trichomes compared with older leaves. However, the top young leaves also had reduced numbers of eggs and nymphs (23 and 1/cm2 of leaf disk, respectively) compared with older leaves. The results suggest that other factors, in addition to trichomes, at least for young terminal leaves, affect silverleaf whitefly population development.
Keywords:
Agriculture -- Arizona; Cotton -- Arizona; Insect investigations
Series/Report no.:
AZ1170

Full metadata record

DC FieldValue Language
dc.titleSilverleaf Whitefly - Trichome Density Relationships on Selected Upland Cotton Cultivarsen_US
dc.contributor.authorChu, C. C.en_US
dc.contributor.authorNatwick, E. T.en_US
dc.contributor.authorHenneberry, T. J.en_US
dc.contributor.departmentUSDA, ARS, Western Cotton Research Laboratoryen_US
dc.date.issued2000-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCotton: A College of Agriculture Reporten_US
dc.description.abstractWe studied silverleaf whitefly (SLW) and trichome density relationships on ten selected upland cotton cultivars: Deltapine #20B, 50B and 90B, NuCOTN 33B, Stoneville 474, Fibermax #819 and 832, Siokra L-23, and 89013-114 at Maricopa, in AZ, 1999. Whitefly and stellate trichome densities were counted on leaves on main stem leaf nodes #1, 3, 5 and 7 of each cultivar. Stoneville 474 had about 2-3 times more eggs, nymphs, and adults and also had 3-30 times more branched trichomes on abaxial leaf surfaces compared with the nine other cultivars. The top young leaves on node #1 had about 6 times more stellate trichomes compared with older leaves. However, the top young leaves also had reduced numbers of eggs and nymphs (23 and 1/cm2 of leaf disk, respectively) compared with older leaves. The results suggest that other factors, in addition to trichomes, at least for young terminal leaves, affect silverleaf whitefly population development.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCotton -- Arizonaen_US
dc.subjectInsect investigationsen_US
dc.identifier.urihttp://hdl.handle.net/10150/197517-
dc.relation.ispartofseriesAZ1170en_US
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