Author: Sun Qun (Zigui County of Yichang City, Hubei Xin Road, 8th Floor Three Gorges Bee Research)
There are many kinds of bee rot disease, but there is a common characteristic. The larva collapses, and after the rot, it is in the shape of a bag, and the bite is opened and the tip of the lid is opened. Some are not contagious and good, and some are contagious and refractory. The causes of the disease are divided into the following categories:
First, the spring and low temperature rots
Sudden cold, the worker bee abandoned the agglomeration, the larvae could not get the insulation, and the frozen rot. Control measures: pay attention to the weather forecast and strengthen the insulation.
Second, feeding bad rots
The outside is rich in honey powder, the temperature is suitable, and the bee king is prosperous. At this point, the worker bees are not well fed, the larvae are not well fed, and the hunger is dead.
Control measures: Slowly add the spleen, keep the bees more than the spleen, and keep the amount of semi-spleen bees outside the partition.
Third, check the high temperature rot of the bee
Improper operation when checking bees, spleen violent, irritating worker bees, making their abdomen fever, raising nest temperature, and burning dead larvae.
Control measures: Lift the spleen and check the bees gently, and when the worker bees are restless, use a water spray to cool down.
Fourth, mechanical damage rotten
Lift the spleen, shake the honey, and damage the larvae during the playback.
Control measures: master the rhythm and operate carefully.
5. Pesticide poisoning rots
Spraying pesticides during the flowering period, the bee colony has no signs, and the brushing ground suddenly smashes.
Control measures: Move away from the spraying site.
Six, bee colony anoxic sputum
It usually occurs in a strong group of five or six spleen, worker bees are dense, and the larvae on the spleen are neatly formed into pieces. Because the beehive is sealed, the nest door is too small, and the air is not circulating, resulting in insufficient oxygen supply.