Disbury, M., R. Cane, J. Haw, S. Gilmer, and S. Garner. “Field Evaluation of Spinosad for Control of the Willow Sawfly (<i>Nematus oligospilus</i≫) in Hawkes Bay”. New Zealand Plant Protection, vol. 57, Aug. 2004, pp. 244-7, doi:10.30843/nzpp.2004.57.6900.