1. Bee larval rot disease
Larval rot is an infectious disease that develops during the larvae of honey bees and causes the larvae to rot. There are mainly two kinds of American larval rot and European larval rot. American larval rot can cause larvae to rot, also known as "rot disease". It mostly occurs in bee colony breeding and honey-gathering seasons, which weakens the colony, reduces production capacity, and takes a long time to cure. It is a devastating disease in beekeeping production.
European larvae rot is caused by a combination of various bacteria such as Streptococcus hives, Streptococcus apis, Bacillus alveoli, and Bacillus alveoli. The diseased larvae died at the age of 3 to 4 days. The dead larvae were pale and flat at first, then gradually turned yellow, and finally dark brown. The larval carcasses have a sour smell, exudate, and are non-sticky. When picked with a small stick, they cannot be pulled into filaments like the American larval rot.
2. Bee rot disease
The symptoms of bee rot disease are obvious. A large number of larvae in the bee colony rot and die, and most of them have died before the cap is sealed. At the bottom of the hive with the diseased colony, you can see a white sticky substance like snot. It is very sticky, and it is difficult for general worker bees to clean up, and it also has a rotten smell. Eggs can be seen in serious bee colonies, but the capped spleen and pupae cannot be found, and large larvae are rarely seen. This leads to the weakening of the bee colony, and even the death and escape of all bee colonies.
