Cover Image

Cotton host plant resistance to silverleaf whitefly (Homoptera: Aleyrodidae) /

Bemisia argentifolii n. sp., Power and Bellows, became a serious pest of cotton, Gossypium hirsutum, in the Lower Rio Grande Valley of Texas in 1991. In conjunction with the Texas A&M Cotton Improvement Lab, cotton germplasm lines were tested for host plant resistance to B. argentifolii, the si...

Full description

Bibliographic Details
Main Author: Hutcheson, Maria Decanini
Format: Thesis Book
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Major entomology.
Online Access:http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=739667491&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD
Description
Summary:Bemisia argentifolii n. sp., Power and Bellows, became a serious pest of cotton, Gossypium hirsutum, in the Lower Rio Grande Valley of Texas in 1991. In conjunction with the Texas A&M Cotton Improvement Lab, cotton germplasm lines were tested for host plant resistance to B. argentifolii, the silverleaf whitefly (SLW) in 1994 and 1995. Bioassays to measure antibiosis and antixenosis were developed. A no-choice bioassay designed to measure female fecundity and female adult longevity was developed. Females laid significantly fewer eggs on several cotton germplasm lines tested indicating the presence of relative levels of host plant resistance to SLW. A study that traced the development of SLW immatures was also conducted in order to assess antibiotic resistance to SLW immatures. While there were no differences in the developmental times across germplasm lines, there were differences in immature survivorship. A small-scale field study showed that several of the germplasm lines and cultivars tested did exhibit host plant resistance to SLW oviposition and development under field conditions.
Item Description:Vita.
"Major Subject: Entomology".
Physical Description:x, 117 leaves : illustrations ; 28 cm.
Issued also on microfiche from University Microfilms Inc.
Bibliography:Includes bibliographical references: pages 95-104.