在广东地区的中蜂,发生一种蜂蛹病,病蛹前额变成白色,所以养蜂员都称它为白头蛹病。我对这种蜂蛹病曾作过以下的观察和试验。一、发病时期这种病在整个蜂群繁殖季节都会出现,一般在4—5月间就开始较多的出现,发病最盛时期是在出伏后的9—10月,随后就开始下降。关于此病的消长情况如表一。 A bee pupae disease occurs in a bee in Guangdong Province. The pupal forehead turns white, so the beekeepers call it a pupae. I have made the following observations and experiments on this pupa disease. First, the onset of the disease in the breeding season will occur throughout the colony, usually in April-May began to appear more in the peak incidence period is in the volumn of September-October, then began to decline. The growth and decline of the disease in Table 1.