GrubPlan is an extension package developed by BSES to train growers and advisory staff in strategies to manage greyback canegrub populations in subsequent crops. GrubPlan assists growers to assess the risk of grub damage in each block of cane, and select appropriate control strategies. A formal training program based on adult-learning principles was used to develop and extend GrubPlan. Participants interacted in practical planning exercises to map management strategies for reducing the risk of damage in the next season and beyond. This extension method is a departure from the traditional ‘shed meeting’ approach to assisting growers. Shed meetings were not successful at achieving the level of change necessary to manage canegrubs. The first training program engaged 906 growers and rural agency staff between July - September 2001. Seventy workshops were conducted from Mossman in the far north to Sarina in the central district. Grower feedback was positive, with 97% of the participants indicating that they would implement the plans they devised during the training session. A similar percentage wanted follow up workshops on this subject.