一、绵疫病引起的烂果危害下部老果较多。初期出现水浸状小斑,逐渐扩大产生白色棉絮状菌丝,果实内变黑,极易脱落。病果落地后,遇潮湿全果腐烂产生白霉,最后干缩,成为黑褐色僵果。发病初期,根据病情7～10天喷一次25%百菌清可湿性粉剂 First, cotton leaf disease caused by rotten fruit lower part of the old fruit more. Initial appearance of flooding-like small spots, and gradually expanded to produce white cotton-like mycelium, the fruit becomes black, easily off. After the disease fruit landed, the case of white rot caused by decay of the whole fruit wet, and finally dry shrink, become dark brown stiff fruit. Early onset, according to the disease sprayed once a day 7 to 10% chlorothalonil WP