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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
- Universidade Estadual Paulista (UNESP)
- Univ Camilo Castelo Branco
- 1612-4758
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- 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.
- 1-Aug-2010
- Journal of Pest Science. Heidelberg: Springer Heidelberg, v. 83, n. 3, p. 221-227, 2010.
- 221-227
- Springer Heidelberg
- Cucurbita pepo
- Host plant resistance
- Aleyrodidae
- Nonpreference
- Antibiosis
- http://dx.doi.org/10.1007/s10340-010-0289-2
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/41193
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