RESEARCH UPDATE: Diamond biocontrol

Eight species of parastic wasps are among the best hopes for biocontrol of the profoundly insecticide-resistant diamondback moth (DBM) on WA's canola and other brassica crops. Finding natural enemies of DBM is now a high priority of GRDC-supported research, particularly since the discovery that larvae collected from WA's northern agricultural region demonstrated 15-17 times greater resistance to the synthetic pyrethroid, permethrin, than susceptible laboratory populations. Research is ongoing to identify more natural enemies and evaluate their suitability for biocontrol on canola crops.

Program 3 Contact: Ms Helen Spafford Jacob 08 9380 3590