Berry, N.A., M.K. Walker, and R.C. Butler. “Laboratory Studies to Determine the Efficacy of Selected Insecticides on tomato/Potato Psyllid”. New Zealand Plant Protection 62 (August 1, 2009): 145–151. Accessed October 23, 2021. https://journal.nzpps.org/index.php/nzpp/article/view/4784.