How to diagnose and control bee pupal disease?

The main diseases of honey bee larvae are honey bee larval putrid disease, honey bee European larval putrid disease, honey bee cystic larval disease and honey bee chalk disease.

Honey bee larval disease causes the flower seed phenomenon.

Cystic larval disease.

Diagnosis of bee larval disease.

Because these four diseases are not easy to be completely infected once they are infected, there will be more cases of anti-disease, so the general principle of prevention and treatment is to focus on prevention and treatment, and the daily management effect is better than drug prevention and treatment, so as to reduce the probability and harm of the disease as much as possible.

1) Strengthen feeding management and improve the disease resistance of bee colonies.

2) Change the king in time and breed disease-resistant varieties.

3) Regular preventive measures are carried out every year.

4) Isolate the sick group, strictly disinfect, and eliminate the source of infection.

5) Drug prevention and treatment to improve the accuracy of diagnosis, adhere to the right medicine, the use of Chinese herbal medicine is safer.

Diagnosis: The body of the worm loses its natural luster and fullness at the stage of large larvae, becomes grayish-white, and the color of the worm gradually deepens and gradually turns light brown to dark brown. Most of the bees die in the pupal stage, the dead bee pupae are dark brown or black, the corpses have no odor, no stickiness, and most of them are dry.

The cap is mostly bitten open by worker bees, revealing the head of the dead pupa and becoming a "white-headed pupae". A few sick pupae can develop into bees, but these young bees are weakened and die soon after they leave the house.

Prevention and control: strengthen feeding management, strengthen the insulation of bee colonies, fill feed in time, clean up sick and dead bees, and avoid cross-infection; Breeding disease-resistant varieties and replacing queen bees in a timely manner; Thorough disinfection of bee tools and bee spleen in a timely manner; Choose symptomatic drugs for prevention and treatment, such as Pupae Taikang, and you can also use some Chinese herbal medicines.

Summary. Wasp pupa dropping can be due to the following reasons: the ambient temperature is too low or too high, causing the bee pupae to die and fall. The humidity inside the hive is too high or too low, causing the bee pupae to die and fall. Infection of parasites or germs in the hive, causing the bee pupae to die and fall.

What does a wasp bee chrysalis drop? What's with? How to prevent it. How to feed what medicine.

The fall of the wasp pupa seepage wheel can be due to the following reasons: the ambient temperature is too low or too high, causing the bee pupae to die and fall. The humidity in the hive is too high or the chrysalis is too low, causing the colony to die and fall. Infection of parasites or germs in the hive, causing the bee pupae to die and fall.

In order to prevent wasp pupae from falling, the following measures can be taken: keep the temperature and humidity in the hive appropriate. Clean the hive regularly to prevent the growth of pre-parasitic insects and germs.

Li Cheng uses suitable control drugs, such as pesticides and fungicides. **Wasp pupa drops need to be fed with appropriate medications, such as royal jelly and honey, to promote the growth and recovery of the pupae. At the same time, it is also necessary to pay attention to the environmental and hygienic conditions in the hive to prevent the recurrence of bee pupae dropping.

The wasp pupae fall and the bee pupae are alive.

If the wasp larvae fall to the ground, then the curved ridge it is still buried alive. The larvae of the bees hatch and grow in their nests, and if they accidentally fall to the ground, they may suffer some damage, but they are usually still able to survive.

The temperature and humidity of the wasp matchmaker are in a few degrees and yes.

The temperature and humidity of the wasp matchmaker is around 25-30 degrees Celsius and 70%-80% relative humidity.

1. Symptoms of cystic larval disease.

The cystic larval virus mainly infects 2 3-day old larvae, the incubation period is 5 6 days, the larvae will die before and after the cap, it is rare to see the phenomenon of death after turning into a pupa, the body of the insect will lose its luster, become pale, the head leaves the nest wall, slightly upturned, the shape is dragon boat shape, after picking it out with tweezers, you will see a small transparent water bladder at the end, and the color of the insect will gradually change from pale white to light brown, black-brown, the insect corpse will not rot, but shriveled and odorless, non-sticky, easy to be removed from the nest. As the dead insects are constantly removed and the queen bee lays eggs again, the diseased colony will have a "flower seed phenomenon". There are two types of disease in bees:

One is the onset of the large **spleen, which is ferocious and can easily cause the whole group to be wiped out, which is called the acute type; The other is that the number of diseased larvae is small, the disease and insect can be seen intermittently, and the population gradually declines, which is called the chronic type.

2. Diagnostic methods for cystic larval disease.

If there is a large hole in the nest, the larvae in the room are pointed and upturned, and a vesicular sac can be seen on the tail after picking it out with tweezers, and there is no odor, the diagnosis of cystic larval disease can be made. This disease often appears at the same time as European larval disease, which generally has a sour smell, so it is important to distinguish it from the symptoms of European larval disease in order to confirm the diagnosis.

3. Prevention and control methods of cystic larval disease.

Comprehensive prevention and control measures should be taken to strictly disinfect bee colonies, strengthen the management of bee colony breeding and drug control.

1. In strengthening the management of feeding, we should try to breed disease-resistant queen bees. Every spring, select disease-resistant bee colonies from disease-stricken apiaries to breed queens and replace the queens of other diseased colonies, so that the resistance of bee colonies to this disease can be greatly improved after several generations of breeding. This measure can also be carried out when changing the king and the child before applying the drug to the disease.

2. In the case of low temperature and rain in early spring, the bee colony should be appropriately merged or the excess spleen should be withdrawn, so that the bees have excess spleen, and the nest door should be narrowed to improve the nest temperature and the nest clearing ability of the colony.

3. Cut off the nest to cut off the cycle of infection and reduce the source of infection. For the diseased bee colony, the method of changing the queen or claustrophobic queen bee should be appropriately adopted to artificially cause the colony to break off the offspring period, so as to facilitate the worker bees to clean the nest and reduce the chance of larval cross-infection. In combination with drugs**, the two-pronged effect is even better.

4. Drugs are an auxiliary link in the prevention and control of cystic larva disease. According to years of experience in bee colony control, Chinese herbal medicine, which mainly has the effect of clearing heat and detoxifying, is the best choice for this disease. For example:

Use 40 grams of dried medicine of half lotus or 10 grams of Huaqian golden vine, add an appropriate amount of water, filter after decoction, prepare 1000 ml of drug syrup, add 10 tablets of multivitamins, mix evenly and feed 10 boxes of bees, feed 1 time every 1 day, and feed 4 5 times in a row for a course of treatment.

Every morning, when the bees start their collection activities, they can be seen dragging the corpses of diseases and insects from the nest and scattering them on the ground in front of the nest, which is suspected to be a disease of the bee colony. Open the beehive, raise the spleen, you can see that there are "flower arrangements" on the spleen, the cover is perforated, there are pointed dead larvae in the room, white and odorless, easy to drag out of the nest, and the end of the insect with a small sac filled with water, can be preliminarily diagnosed as cystic larval disease. In addition, the diseased larvae can also be sent to the relevant departments for electron microscopy observation and serological diagnosis.

The causative agent of cystic larva disease is mainly cystic larval virus, which can survive for 3 months in a dry environment at room temperature, 4 6 hours in a sunny and dry environment, and 1 month in bees at room temperature in summer.

At present, there is no particularly good way, you can use some traditional Chinese medicine tide to alleviate, under normal circumstances, there will be some dead larvae, and the head is upturned.

It can be judged by the specific growth situation, the specific color, the specific development situation, pay attention to the surrounding temperature, and use the drug reasonably.

Summary. Dear, hello, wasp pupa medicine can be **, you can go online or go to the pesticide store to buy, I hope mine can help you!

Dear, hello, wasp pupa medicine can be **, you can go online or go to the pesticide store to buy, I hope mine can help you!

What medicine. Vespa pupation medicine.