Walker, J.T.S., N.M. Park, B.E. Clothier, D.W.L. Manktelow, C.W. Van_Den_Dijssel, A.J. Hodson, M.J. Barley, and L.R. Hodson-Kersey. “Progress in Pesticide Risk Reduction in New Zealand Horticulture”. New Zealand Plant Protection 62 (August 1, 2009): 321–327. Accessed December 6, 2021. https://journal.nzpps.org/index.php/nzpp/article/view/4806.