The objective of this study was to identify cowpea cultivars resistant to B. tabaci biotype B and the respective resistance types involved. The experiments were conducted in a greenhouse at the Departamento de Fitossanidade da Faculdade de Ciências Agrárias e Veterinárias, UNESP/Campus de Jaboticabal, SP, Brasil, from November 2009 to April 2010. Tests for non-preference for oviposition and antibiosis were performed. The experimental design consisted of randomized blocks for the choice test and completely randomized for the no-choice tests and the antibiosis test. It was concluded that the BRS Urubuquara, IPA-206 and BR17 Gurgueia cultivars present non-preference for whitefly oviposition resistance; the BRS Urubuquara cultivar presents non-preference and antibiosis resistance; the Sempre Verde cultivate is susceptible to oviposition; and the whitefly prefers to deposit eggs on the leaves' abaxial face in the upper position of the plant.
Resistance types; silverleaf whitefly; cowpea