Scheper, Reiny, Brent Fisher, Tara Taylor, and Duncan Hedderley. “Detached Shoot Treatments Cannot Replace Whole-Tree Assays When Phenotyping for Apple Resistance to Neonectria Ditissima”. New Zealand Plant Protection 71 (July 28, 2018): 151-157. Accessed May 23, 2019. http://journal.nzpps.org/index.php/nzpp/article/view/137.