Status of the biological control of the sugar-cane borer in Brazil.
The author reviews the work that has been and is being done in Brazil to rear and release parasites for the control of Diatraea spp., especially D. saccharalis (F.). on sugar-cane. The main parasites involved are Metagonistylum minense Tns., Lixophaga diatraeae (Tns.), Paratheresia claripalpus (Wulp), Apanteles flavipes (Cam.) and (recently) Myobiopsis diadema (Wied.) (Leskiopalpus diadema). In Sao Paulo State, parasitism has ranged from 16.69 to 38.34%. In a commercial field where Metagonistylum minense was released, parasitism of 55.7% was achieved. Biological control of the sugar-cane borer is playing an important role in Brazil.