| Full text | |
| Author(s): |
José Paulo Gonçalves Franco da Silva
[1]
;
Edson Luiz Lopes Baldin
[2]
;
Efrain Santana de Souza
[3]
;
André Luiz Lourenção
[4]
Total Authors: 4
|
| Affiliation: | [1] Universidad de Sao Paulo. Facultade de Ciencias Agronómicas - Brasil
[2] Universidad de Sao Paulo. Facultade de Ciencias Agronómicas - Brasil
[3] Universidad de Sao Paulo. Facultade de Ciencias Agronómicas - Brasil
[4] Instituto Agronomico de Campinas. Centro de Pesquisa e Desenvolvimento de Fitossanidade. Entomologia - Brasil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | Chilean J. Agric. Res.; v. 72, n. 4, p. 516-522, 2012-12-00. |
| Abstract | |
Since it was first reported in Brazil in the 1990s, the B biotype of silverleaf whitefly (Bemisia tabaci Genn., Hemiptera: Aleyrodidae) has been recognized as an important pest in soybeans (Glycine max L.), reducing the productivity of this legume species in some areas of the country. As an alternative to chemical control, the use of resistant genotypes represents an important tool for integrated pest management (IPM). This study evaluated the performance of 10 soybean genotypes prior to whitefly infestation, by testing attractiveness and preference for oviposition in the greenhouse and antibiosis in the laboratory. In a multiple-choice test, ’IAC-17’ was the least attractive to insects. In a no-choice test, ’IAC-17’ was the least attractive for egg deposition, indicating the occurrence of non-preference for oviposition on this genotype. Trichome density was positively correlated with the oviposition site and may be associated with the resistance of ’IAC-17’ to infestation. The genotypes ’IAC-PL1’, ’IAC-19’, ’Conquista’, ’IAC-24’ and ’IAC-17’ extended the insect’s life cycle, indicating the occurrence of a small degree of antibiosis and/or non-preference for feeding. (AU) | |