Diseased bees become weak due to illness. They flew lazy to leave the nest in search of food. Bees are more fond of ill-togethers gathered near the exit hole or a walk with the feet dragged among healthy bees.
1. dysentery
Dysentery are common during cold weather and lots of rain, especially in bee colonies fed sugar is too watery fluid. Diseased bees become lazy, enlarged belly, not much to fly out, feces are not disposed to the outside of the cage. At the base of the cage was collected feces foul smelling liquid. The diseases can be avoided by feeding either thick honey and keep the nest boxes and the surrounding environment.
 2. Eraman Stone Disease
This disease attacks the bee larva. Grubs are infected become hard as a rock. The cause is the fungus Aspergillus flavus. Eradication carried out with formaldehyde vapor being sprayed into the nest.
3. Eraman disease Pouch
Diseased bee larva looks like a bubble-filled sac filled with water. Color to yellow to black. Her skin was rough. Cause of this disease is a viral disease of unknown name is rarely cause outbreaks. Diseases that arise will disappear by itself as long as it is clean and dry honeycomb