Adult attractiveness and oviposition preference of Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae) B-biotype in cotton genotypes

Scientia Agricola

Arlindo Leal Boiça Júnior²  Zeneide Ribeiro Campos²  André Luiz Lourenção¹  Alcebíades Ribeiro Campos¹ 

[1] ,UNESP FCAV Depto. de FitossanidadeJaboticabal SP ,Brasil

关键词: Gossypium hirsutum L.;    Aleyrodidae;    insecta;    silverleaf whitefly;    host plant resistance;    Gossypium hirsutum L.;    Aleyrodidae;    insecta;    mosca-branca;    resistência de plantas a insetos;   

DOI  :  10.1590/S0103-90162007000200007

来源: SciELO

【 摘 要 】

The silverleaf whitefly Bemisia tabaci B-biotype is an important pest of cotton; it affects plant vigour, transmits geminivirus and reduces lint quality. In order to evaluate the resistance of cotton genotypes, Gossypium hirsutum (L.), to the whitefly Bemisia tabaci B-biotype, both free-choice and no-choice attractiveness and non-preference for oviposition tests were carried out in a shade house, at room temperature. Low attractiveness to adults of this whitefly was observed for plants of genotypes Fabrika, CNPA Ita 90, Makina, Coodetec 407, and IAC 01-639 CPA 02-24, which may represent a resistance component of these genetic materials to the insect. Genotypes BRS Aroeira, Coodetec 406, Fabrika, and Coodetec 401 presented the non-preference-for-oviposition type of resistance in the free-choice and no-choice tests. The numbers of trichomes and gossypol glands per cm² were not suitable to evaluate non-preference for oviposition of whitefly adults on cotton genotypes.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License