我国饲养的西方蜜蜂群中常发生一种俗称“蜜蜂大肚病”的成年蜜蜂慢性传染病。罹病蜜蜂全身颤抖,行动呆滞,对外界刺激反应迟钝,严重者完全丧失飞翔能力以至在麻木中死亡。病蜂腹部胀大或瘦小,体毛较为完整或被同群健康蜂撕咬净尽而呈漆黑油亮状,故群众又称之为“黑蜂”。该病全年都有发生,但春、秋两季为多,尤以春季严重。患病蜂群由于蜜蜂患病和死亡,其群势发展往往停滞不前;有的病群虽然还有相当数量的蜜蜂,但采集力却有不同程度的下降,以 A kind of chronic infectious disease of adult bees, commonly known as “Bee Belly Disease”, often occurs in western bee colony reared in China. Diseases of bees trembling trembling, sluggish, unresponsive to external stimuli, in severe cases completely lost the ability to fly and even died in numbness. Sick bee swollen or thin abdomen, body hair is more complete or by the same group of health bee bite clean and was black and shiny, so the masses also known as “black bee.” The disease occurs throughout the year, but more in spring and autumn, especially in spring. Sick bees due to bee illness and death, the development of its group tends to stagnate; some groups although there are a considerable number of bees, but the collection force has decreased in varying degrees to