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：2019-001-0001-031
藏品描述：葉片與幼嫩之枝條被害，初期為黃綠色小點，擴大後呈赤褐色，上有灰黑色小點，老病斑則為灰色。嫩葉上的病斑呈褐色小斑點。在嫩枝條上，枝條變成黑色，容易折斷。
Brown blight of tea is a bacterial disease. The primary symptoms of the disease include small, water-soaked and dark brown spot development on the young leaves. This spot gradually increases in size, especially taking on elongate shape along the midrib or vein of the leaf, and then turns black. The diseased leaves were defoliated easily.