Johnston, P.R., J.A. Cooper, D. Park, P.W. Sutherland, and P.N. Wood. 2014. “Sexual State of Grape Powdery Mildew (<i>Erysiphe necator</i≫) Newly Recorded for New Zealand”. New Zealand Plant Protection 67 (January). Auckland, New Zealand:324-24. https://doi.org/10.30843/nzpp.2014.67.5764.