Levantamento dos insetos e flutuação populacional das pragas que ocorrem na cultura do caupi (Vigna unguiculata (l.) Walp., em Rio Branco (AC)

Abstract

A survey of insects in cowpea (Vigna unguiculata (L.) Walp. cv. Cana Verde) crop was conducted using light-traps and sweep nets at the Experimental Station of EMBRAPA-CPAF/ACRE from August 1984 to May/August 1986. The insects collected totaled 18,165 individuals, which were classified into 68 genera or species. The most important species were: • Maruca testulalis (Geyer 1832) (first week of July) • Neocurtilla hexadactyla (Perty 1832) (first and last week of June) • Pledorotus guildinii (Westwood 1837) (first week of June) • Cerotoma tingomarianus Bechyné (third week of June) • Crinocerus sanctus (Fabr.) (third week of July) Six predatory taxons and one potential pest of cowpea, Eusichistus sp., also occurred.