Blackcurrants: Evaluation of chemicals to control Sawfly

• Lorsban (chlorpyrifos) gave complete control of blackcurrant sawfly larvae and Tracer and Calypso nearly complete control, by 3 days after treatment. Control endured, neonate larvae dying as they emerged from eggs, until at least 7 days after treatment, when the trial was terminated.

•  Hallmark and Dimilin Flo gave approximately 70% control of larvae.

•  Dipel, Insegar and Runner were completely ineffective

Evaluate the efficacy of single foliar sprays of eight insecticides for control of blackcurrant sawfly.