Costa, F.L. 1997 Ratio Pentilla egena: Selenaspidus articulatus (Col.: Coccinellidae; Hem.: Diaspididae) on citrus; the effect of chlorpyriphos.]. [16th Brazilian Congress of Entomology] 16o Congresso Brasileiro de Entomologia. Sociedade Entomológica do Brasil/EMBRAPA-CNPMF Salvador 400 pp.

Notes: [Abstracts of the Conference held in Salvador, BA, 2 to 7 of March 1997.] [Original title: Relação Pentilia egena: Selenaspidus articulatus (Col.: Coccinellidae; Hem.: Diaspididae) em citros sob efeito de chlorpirifos.] Consistent results have been obtained with chlorpyriphos against Selenaspidus articulatus, Parlatoria ziziphus and P. cinerea. The predator and pest relationship is examined.