What should I look at if a bee is sick?

Observe the state of the bees. Sick bees often exhibit dementia, unresponsiveness, loss of vitality, inability to take off, restlessness, perched on one side or slowly rolling inside and outside the tank. Observe the head, the head of a healthy bee moves freely, and when it shows shaking head and itching, it may be a bee mite.

It can be judged according to the flight status of the bee, or it can be judged according to the wings of the bee, the dorsal abdomen, the limbs, the state or the head of the bee.

There are many types of bee pests and diseases. In summary, there are infectious pests and diseases caused by biotic and abiotic factors, and non-infectious pests and diseases. Infectious pests and diseases are divided into infectious pests caused by pathogenic microorganisms and invasive pests and diseases caused by parasites according to different infection methods.

The main infectious pests and diseases of bees are:

1) Viral diseases.

The main ones are cystic larva disease, paralysis disease, bee pupal disease, cloud wing virus disease, Egyptian honey bee virus disease, etc.

2) Bacterial diseases.

The main ones are American larval putrid disease, European larval putrid disease, septicemia and paratyphoid fever.

3) spiroplasmosis.

There is mainly honey spiroplasmosis.

4) Mycoses.

There are mainly chalk, aflaturosis and queen ovary melanosis.

5) Protozoan diseases.

There are mainly honey bee sporidiosis, honey bee amebiasis and so on.

6) Parasitic mites.

There are mainly Var mites (giant bee mites), bright heat mites (small bee mites) and Wu's bee shield mites (tracheal mites) and so on.

7) Parasitic insects and nematodes.

There are mainly bee flies, humpback flies, corianders, round-headed flies, bee lice and nematodes.

The non-infectious pests and diseases of bees mainly include curl wing disease, frostbite larvae, egg blight, jujube flower disease, camellia poisoning, manna honey poisoning, pollen, nectar and pesticide poisoning.

In addition, according to the state of the diseased bees, bee diseases and pests mainly include oval diseases, larval diseases, bee pupal diseases, and adult bee diseases.

1. Bee chalk disease: spring or early summer is the most common period for bees, chalk disease, also known as lime bees, is an infectious disease of bee larvae, which mostly occurs in spring or early summer, especially under rainy and humid environmental conditions. Honey bee larvae that suffer from chalk disease die after the nest is capped.

2. Sporidiosis: Sporidiosis is the most widespread bee adult disease in the world, and the incidence rate in China is also high. Diseased bees have a shortened lifespan and reduced collection power, which can cause serious economic losses and must be paid enough attention.

3. Bee paralysis: Bee paralysis, also known as black bee disease, is an adult bee disease, which generally occurs in spring and autumn. There are two symptoms of bee paralysis:

One symptom (type I) is that the wings and body of the sick bee shake abnormally, cannot fly, often fall to the ground, sometimes squeezed together in the box, the abdomen swells, and the wings open and fall off. The distended abdomen is caused by the filling of the honey sac with water.