Xu, Xiangming, Leone Olivieri, Alan C. Gange, Lizelle Vorster, Don Rice, Rebecca E. Campbell, and Monika Walter. “Does Apple Canker Develop Independently on Leaf Scars of a Single Apple Shoot?”. New Zealand Plant Protection 74, no. 2S (August 2, 2021): S9-S19. Accessed August 29, 2026. https://www.journal.nzpps.org/index.php/nzpp/article/view/11739.