Triệu chứng Symptoms include blight, wilting, dieback, and necrosis of the vascular tissues. On leaves, angular necrotic spots become visible, limited by smaller veins, and irregularly distributed on the lamina. These spots are often surrounded with a chlorotic halo. These spots begin as distinguishable moist, brown lesions normally restricted to
Cassava Bacterial Blight
Vi khuẩn
Triệu chứng
Symptoms include blight, wilting, dieback, and necrosis of the vascular tissues. On leaves, angular necrotic spots become visible, limited by smaller veins, and irregularly distributed on the lamina. These spots are often surrounded with a chlorotic halo. These spots begin as distinguishable moist, brown lesions normally restricted to the bottom of the plant until they enlarge and coalesce, thereby often killing the entire leaf. Pools of gum exudate along wounds and leaf cross veins. This process begins with a sappy golden liquid which subsequently hardens to form an amber colored deposit. Young stems and petioles may crack after infestation, also oozing gum.
