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美洲幼虫腐臭病美洲幼虫腐臭病是由幼虫芽孢杆菌(Bacilluslarvae)引起的。病菌的芽孢抵抗力很强,在巢脾上能生活15年。在蜂蜜中煮沸40分钟才能杀死,在沸水中11分钟即死亡。这种病常发生在夏季,由带菌的蜂蜜、巢脾和蜂具等传染。当工蜂用带病菌的蜜饲喂幼虫时,使幼虫感染得病。此外、如蜂场上已发生此病,加之外界缺乏蜜源、发生盗蜂盗蜜,常使此病全场蔓延,损失重大。从感染到表现病状,要经过一星期左右的潜伏期。染病的幼虫大部分在封盖后死亡。病虫的房盖下陷,穿孔。蛹或幼虫死亡后,初为淡黄色,后逐渐变为咖啡色。腐烂的虫体变成粘性的胶状物,有鱼腥臭味,用火柴棒挑时,能拉成长丝。染此病的死蛹呈伸舌形状,
American larvae rancidosis American larvae rancidosis is caused by Bacillus larvae. Germs spores strong resistance in the spleen can live on 15 years. Boiled in honey for 40 minutes to kill, died in boiling water for 11 minutes. This disease often occurs in the summer, from infected honey, honeycomb spleen and bee infection. When the worker bees feed the larvae with the honey with germs, the larvae become infected. In addition, such as the bee field has occurred in this disease, coupled with the lack of nectar source outside, the occurrence of robbery Pirates honey, often make the disease audience spread, a significant loss. From the infection to the performance of symptoms, to go through a week or so of incubation period. The majority of infected larvae died after capping. Pests cover the housing subsidence, perforation. Pupae or larvae died, the first light yellow, then gradually turned brown. Rotten worms into a sticky jelly, stench of fish, pick with a matchstick, can pull into filaments. Dying pupae infected with the disease showed the tongue shape,