Phytoparasitica (2018) 46, 645-651

Elio C. Guzzo, José D. Vendramim, André L. Lourenção, Alisson F. Chiorato, Sérgio A.M. Carbonell and Osvaldo M.B. Corrêa (2018)
Adult attractiveness and oviposition preference of Zabrotes subfasciatus toward genotypes of common bean Phaseolus vulgaris
Phytoparasitica 46 (5), 645-651
Abstract: The Mexican bean weevil Zabrotes subfasciatus (Coleoptera: Chrysomelidae: Bruchinae) is among the key pests of common bean Phaseolus vulgaris L. around the world. Identifying resistance sources and the resistance types involved is important for development of pest-resistant bean varieties. This study assessed the adult attractiveness and oviposition preference of Z. subfasciatus toward eight genotypes of common bean, including seven pre-selected resistant genotypes and one standard for susceptibility. Attraction to the genotypes was assessed at one and four days after infestation. Oviposition preference was tested under free- and no-choice (confinement) conditions. We observed that IAC 853 was the least oviposited genotype in the free-choice test. However, this finding was not confirmed by the no-choice test. Therefore, IAC 853 could not be characterized as resistant to Z. subfasciatus. Presence of the toxic protein arcelin does not appear to influence host selection by Z. subfasciatus.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Elio C. Guzzo, José Djair Vendramim, André Luiz Lourencao

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Zabrotes subfasciatus	Stored legumes
	Zabrotes subfasciatus	Beans (Phaseolus)