Common Bee Diseases


List of Common Bee diseases


It is caused by an external parasite (parasite mite Varroa destructor) which is fed with the hemolymph of honeybees.

During and after the attack by varroa, adult bees have distorted or atrophied wings, and short bellies. The spat has symptoms of cannibalizing nymphs or larvae, there are dead bees in sealed cells, dead larvae and dead bees with emerging head and protruding proboscis.


Caused by Nosema aspis and Nosema ceranae.

During and after the attack of Nosema aspis and Nosema ceranae, we find dead bees in front of the hive, the bees crawl or are attached to the ground, there are traces of diarrhea outside or inside the cell and there is population reduction.

American foulbrood

It is the disease of the sealed brood and is caused by a spore-forming bacterium Paenibacillus larvae

In this case we observe fry nematode larvae, larvae with characteristic odor, larvae with a dark brown color.

European foulbrood

European foulbrood is the disease the unsealed brood and is caused by the bacterium, Melissococcus plutonis.

You can enrich this article by leaving a comment or photo of your bees' symptoms and diseases.

1. Beekeeping Basics

2. Understanding Bee Society

3. How Honey is made by Bees

4. Beehive and Equipment Supply

5. Beehive Location

6. Honey Bee Swarming

7. Beehive Wintering

8. How to feed Bees

9. Honey Harvest

10. Bee Diseases

11. Q&As Bees

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