Aspectos biológicos de Zabrotes subfasciatus (Bohemann, 1833) (Coleoptera, Bruchidae) em Phaseolus vulgaris L., cv. Carioca (Fabaceae), sob condições de laboratório

Abstract

ABSTRACT. Biological aspects of Zabrotes subfasciatus (Bohemann, 1833) (Coleoptera, Bruchidae) on Phaseolus vulgaris L., cv. Carioca (Fabaceae), under laboratory conditions. Zabrotes subfasciatus is a serious pest of common beans, P. vulgaris L.. In Brazil there are several studies dealing with resistance of bean genotypes to this insect, while other studies have emphasized the utilization of oils and powders from plants to repel their attack. In this paper, fecundity, fertility, pattern of oviposition, life cycle and longevity were evaluated for a Brazilian stock from the Goiás State on P. vulgaris cv. Carioca, at 30 o C and 70% R.H. The mean fecundity was 38 eggs per female and 73% of viability. Egg laying showed an aggregated pattern. Males and females lived an average of 13 and 9 days, respectively. The total life cycle lasted for about 28 days.

EFEITO DE ÓLEO VEGETAL DE ALGODÃO NO CONTROLE DE Zabrotes subfasciatus (Coleoptera: Bruchidae) EM SEMENTES DE FEIJÃO

“…O feijoeiro possui várias pragas de armazenamento, cerca de mais de 20 espécies pertencentes a seis gêneros da família Bruchidae que se desenvolve em sementes de leguminosas que são armazenadas e consumidas pelo homem (SARI et al, 2003).…”

Weevil Zabrotes subfasciatus (Boheman, 1883) (Chrysomelidae: Bruchinae) Rearing in Dry Bean (Phaseolus vulgaris L.)

“…It has a fast development and a high reproductive potential, producing many generations in a short period, an excellent characteristic to be used in bioassays and classroom practices. Several research works have been performed with Z. subfasciatus, covering biological aspects, plant resistance, chemical insecticides, botanical extracts, and vegetable oil tests, besides studies on biological and evolutionary theories (Pereira et al 1995;Sari et al 2003;Marteleto et al 2009;Paul et al 2009;Silva et al 2013;Guzzo et al 2018).…”