Bemisia argentifolii(Homoptera: Aleyrodidae) Development and Honeydew Production as a Function of Cotton Nitrogen Status
作者:
Matthew J. Blua,
Nick C. Toscano,
期刊:
Environmental Entomology
(OUP Available online 1994)
卷期:
Volume 23,
issue 2
页码: 316-321
ISSN:0046-225X
年代: 1994
DOI:10.1093/ee/23.2.316
出版商: Oxford University Press
关键词: Bemisia argentifolii;plant-insect interactions;nitrogen
数据来源: OUP
摘要:
In a greenhouse experiment we documented the effects of low, medium, and high nitrogen in cotton on development and honeydew production by the whitefly,Bemisia argentifoliiBellows and Perring. Nitrogen status of cotton plants was manipulated by irrigation with 0.5, 2.5, or 5.0 mmol/liter nitrogen fertilizers. Although the fertilization treatments produced large differences in plant growth, subtle differences were found in whitefly development. No differences among treatments were found in stage-specific survival or the time whiteflies spent in each stadium. Time to adult emergence by whiteflies increased with decreasing nitrogen fertilization. Although early-instar whiteflies on high nitrogen plants initiated the production of honeydew droplets before whiteflies on medium and low nitrogen treatments, they subsequently generated fewer droplets through 24 h periods.
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