作者：曾惠中
類別：圖書文獻類 - 手稿
材質：紙質
年代：1969~1969
尺寸：長:24.6 x 寬:20.5 (cm)
藏品來源：曾惠中捐贈
登錄號：2019-001-0001-032
藏品描述：僅為害幼葉、嫩枝及幼果。病斑初期為淡橙色或茶褐色，葉片被感染面呈圓形乳狀隆起，背面則凹陷。果實上小點形成畸形突出疣狀物，呈淡褐色。當被害組織成熟細胞機能衰弱時，病斑不會明顯突起，僅形成瘡疤形。
Lesions on young leaves begin as minute water-soaked spots which subsequently evolve into, creamy-yellowish pustules. The central area of wart-like outgrowths is depressed and becomes greyish and velvety.
Fruits are infected in the early stages of their development, grow misshapen and are subject to premature fall.