Two new Bio-Control Agents For Cotton Aphids

Abstract

In the past three years two biological control agents, new to Australia, have been discovered attacking cotton aphid, Aphis gossypii. The agents are the parasitic wasp (parasitoid), Lysiphlebus testaceipes and the spotted amber ladybird, Hippodamia variegata. The parasitoid was first found attacking cotton aphids on the Darting Downs in the 2000/01 season and the ladybird in 2001/02. Both insects are now spread throughout the cotton growing areas of eastern Australia.