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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/41193
Title: 
Characterization of antibiosis and antixenosis to the whitefly silverleaf Bemisia tabaci B biotype (Hemiptera: Aleyrodidae) in several squash varieties
Author(s): 
Institution: 
  • Universidade Estadual Paulista (UNESP)
  • Univ Camilo Castelo Branco
ISSN: 
1612-4758
Sponsorship: 
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Abstract: 
The objective of this study was to investigate the potential resistance mechanisms to Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) B biotype, in eight Cucurbita pepo varieties. Attractivity, oviposition preference, and nymphal development were evaluated under greenhouse and laboratory conditions. Variety Bianca was the least attractive to adult whiteflies in multi-choice tests. The whiteflies showed oviposition nonpreference (antixenosis) for Novita Plus, Bianca and Sandy in multi-choice test, and similar results were observed in no-choice tests with varieties Bianca, Novita, Caserta Cac and Sandy. Sandy expressed high antibiosis levels against whitefly nymphs, leading to 63.9% mortality. The high level of resistance in variety Sandy can serve as base for genetic improvement of C. pepo focusing on the development of resistant varieties to B. tabaci B biotype.
Issue Date: 
1-Aug-2010
Citation: 
Journal of Pest Science. Heidelberg: Springer Heidelberg, v. 83, n. 3, p. 221-227, 2010.
Time Duration: 
221-227
Publisher: 
Springer Heidelberg
Keywords: 
  • Cucurbita pepo
  • Host plant resistance
  • Aleyrodidae
  • Nonpreference
  • Antibiosis
Source: 
http://dx.doi.org/10.1007/s10340-010-0289-2
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/41193
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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