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Stylet Length of Silverleaf Whitefly Adults and Nymphs And The Mechanism of Stylet Insertion Into the Leaves of Host Plants

Published online by Cambridge University Press:  02 July 2020

Thomas P. Freeman ,
James S. Buckner  and
Dennis R. Nelson
Thomas P. Freeman
Affiliation:
Electron Microscopy Center, Plant Pathology Department, North Dakota State University, Fargo, ND. 58105.
James S. Buckner
Affiliation:
USDA-ARS Bioscience Research Laboratory, Fargo, ND58105.
Dennis R. Nelson
Affiliation:
USDA-ARS Bioscience Research Laboratory, Fargo, ND58105.
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Extract

Silverleaf whiteflies, Bemisia argentifolii Bellows and Perring, feed on a wide variety of plants and are capable of causing significant economic damage. Host selection may be determined by a wide variety of factors. Adult whiteflies may feed on one leaf and then move to another, however, their feeding and oviposition choices may well determine the success of egg hatch and nymph survival. Current theory suggests that whiteflies feed (Fig. 1) and oviposit on the abaxial surface of leaves due to the closer proximity of phloem tissue. This is believed to be particularly important for nymphs which are stationary during much of their development and have shorter stylets than adults. We examined whitefly stylet penetration into cotton and hibiscus leaves using both light and scanning electron microscopic techniques.

Adult silverleaf whitefly stylets were found to range from 100 urn to more than 300 um in length.

Type
Biological Structure (Cells, Tissues, Organ Systems)
Information
Microscopy and Microanalysis , Volume 6 , Issue S2: Proceedings: Microscopy & Microanalysis 2000, Microscopy Society of America 58th Annual Meeting, Microbeam Analysis Society 34th Annual Meeting, Microscopical Society of Canada/Societe de Microscopie de Canada 27th Annual Meeting, Philadelphia, Pennsylvania August 13-17, 2000 , August 2000 , pp. 876 - 877
Copyright
Copyright © Microscopy Society of America

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