If you want to prevent and control pepper purple spot disease, how should you prevent and control it

First, increase the ground temperature and water in a timely manner, and second, apply more organic fertilizer and supplement magnesium, because magnesium can increase the absorption of phosphorus by crops. Third, drug prevention and control, 99 potassium dihydrogen phosphate can be sprayed 1000 times solution plus 4% alginic acid 500 times solution.

Peppers should be given more nutrients and water at ordinary times, so that purpura can be well prevented.

I think we should cook it, and then change it to the little brother to sterilize, and then let's go and eat his real nutrition later, and then do some benefits for his curative effect.

Hello, black spot disease is generally mostly for large fruits or close to ripe fruits, the lesions are dark brown, and the later lesions are slightly sunken and shrivelled. No black particles or other pathologies have been found. It may be anthrax or black mold, and the early symptoms are consistent with both, but there are no conditions to produce the disease.

Pepper black spot disease prevention.

1. Prevent the occurrence of sunburn.

2. Harvest at the right time to prevent overripening of fruits.

3. In the flowering and fruiting period, it should be watered in a timely and uniform manner, keep the ground moist, increase phosphorus and potassium fertilizer, promote fruit development, and reduce diseases.

Foliar sprays. 1. During the growth of pepper, it is best to combine the spraying of pests and diseases, after fruit set, the appropriate spraying of urea and potassium dihydrogen phosphate of seafood powder powder has less fertilizer, high absorption rate and high conversion rate, which can effectively prevent flower and fruit fall.

2. For the south, acidic soil is prone to calcium deficiency, therefore, calcium fertilizer can be appropriately sprayed to prevent and control pepper umbilical rot with about 50 kg per mu.

3. At the peak of fresh pepper harvesting, pepper needs to absorb a large amount of magnesium fertilizer, magnesium nitrate solution, about 50 kg per mu, sprayed several times.

4. When pepper is deficient in boron, it is recommended to use sea food wo chelation boron fertilizer and spray it once every 7 days.

(1) Select disease-free seeds and seed disinfection.

2) After harvesting, completely remove diseased plants and fallen leaves, and burn them in a centralized manner.

3) Alternate year rotation with other vegetables.

4) Drug prevention and treatment. At the initial stage of the disease, 500 600 times of 50% dysenhuan wettable powder, 1 1 200 Bordeaux liquid, 500 600 times of 75% chlorothalonil wettable powder, 50% polysulfur suspension, 500 times of 36% thiophanate-methyl suspension, 500 times of 50% mixed sulfur suspension, 400 500 times of 77% killable wettable powder, etc., once every 5 7 days, sprayed 3 4 times in a row.

Porcine lung disease, commonly known as "lock throat wind" and "swollen neck plague", is caused by Pasteurella multocida. In spring and autumn, sudden climate changes often occur, generally sporadic and sometimes endemic. It is pathogenic to a variety of animals and humans.

Acute cases present with high fever, acute pharyngitis, high degree of neck redness and swelling, dyspnea, often in a dog-sitting position, elongated head and neck breathing, and foam from the mouth and nose. Chronic cases are characterized by symptoms of chronic pneumonia and gastritis.

To prevent and control this disease, it is necessary to insist on the vaccination of healthy pigs in spring and autumn every year, and the dual inactivated vaccine of swine erysipelas and swine lung disease or the inactivated vaccine of swine lung disease can be used. Antibiotics**, penicillin, streptomycin, tetracycline and sulfonamides can be used to prevent the disease. In large groups**, antibiotics can be mixed into drinking water or feed and fed.

(1) Strengthen cultivation management.

Tie vines and tie side tips in time to improve ventilation and light transmission conditions. During the growing season, organic fertilizer should be applied to promote the vigorous growth of the tree. Drain water in time to reduce humidity.

2) Eliminate the source of overwintering bacteria.

In autumn, the fallen leaves are completely removed and burned or buried deep to reduce the source of overwintering bacteria.

3) Spraying protection.

In the early stage of the disease, combined with the prevention and treatment of black pox and anthracnose, spray 1 Bordeaux solution or 80% zeb wettable powder 500 600 times the solution. Spray 1 time every 10 15 days, spray 2 3 times in a row, can have a better control effect. Because the disease spreads from the bottom up, the first.

First, the second spraying should focus on protecting the lower leaves. After the onset of the disease, it is necessary to use 2000 times of 10% difenoconazole water dispersible granules, or 2000 times of 40% tebuconazole wettable powder, or 1500 2000 times of azoxystrobin difenoconazole suspension (Amimiaoshu suspension), and the spread of the disease can be controlled by spraying 2 or 3 times.

The following measures can be taken to control pepper brown spot disease: Agricultural measures. After harvesting, the diseased and residual plants and fallen leaves are completely removed and burned in a centralized manner.

Crop rotation with non-Solanaceae vegetables for more than 2 years. Seed sterilization. Before sowing, soak the seeds in 55 60 warm water for 15 minutes, or soak the seeds in 500 times of 500 times of carbendazim wettable powder for 20 minutes, and then rinse and promote germination.

50% of the seed weight of carbendazim can be used for seed dressing. Disinfection of facilities. When cultivating in protected areas, fumigate the shed with a smoke agent before planting to kill the residual germs in the shed.

Sulfur fumigation and disinfection are commonly used in production, and every 100 cubic meters of space is mixed with sulfur kilograms and sawdust kilograms, and then ignited and fumigated in several piles for 1 night. Pharmaceutical prevention and control. At the beginning of the disease, spray 600 800 times of 70% zinc dycozeb wettable powder, or 1 1 200 Bordeaux solution, or 500 600 times of 75% chlorothalonil wettable powder, or 500 times of 36% thiophanate-methyl suspension, or 800 times of 50% carbendazim wettable powder, or 64%.

Pepper brown spot disease is mainly harmful to leaves, forming round or nearly round lesions on the leaves, the lesions are white at the beginning of the disease, and gradually become gray-brown with the development of the lesions, the surface is slightly raised, there is a yellow halo around the lesions, the lesions ** have a light gray center, the surrounding black-brown, and the diseased leaves turn yellow and fall off when they are severe. When wet, there is a dark-brown mold layer in the center of the lesion. The stems can also be infected, with symptoms similar to those of the leaves.

Haemophilus parasuis is an infectious disease caused by Haemophilus parasuis and characterized by polyseromanticitis, arthritis, and meningitis in piglets. There are 15 serotypes in the pathogen, and the main serotypes circulating in China are He 14.

Haemophilus parasuis usually only infects pigs, mainly in the post-weaning and nursery stages, commonly found in pigs aged 5 to 8 weeks, the incidence is generally 10% to 15%, and the case fatality rate can reach 50% in severe cases. The main clinical symptoms are fever, anorexia, and anorexia, and dyspnea, joint swelling, claudication, reluctance to move, and death may be seen.

The prevention and treatment of this disease mainly includes antibiotics ** and immunization, but also with excellent management measures, the implementation of uniform weaning and strict all-in, all-out system, do not mix pigs of different ages or pigs of different **, and implement early weaning.

Pepper brown spot disease is mainly harmful to leaves, forming round or nearly round lesions on the leaves, the lesions are white at the beginning of the disease, and gradually become gray-brown with the development of the lesions, the surface is slightly raised, there is a yellow halo around the lesions, the lesions ** have a light gray center, the surrounding black-brown, and the diseased leaves turn yellow and fall off when they are severe. When wet, there is a dark-brown mold layer in the center of the lesion. The stems can also be infected, with symptoms similar to those of the leaves.

Symptoms: At the beginning of the disease, irregularly shaped lesions appear on the fruit, light brown, slightly concave. Generally, there is a large lesion on the fruit, with a diameter of 10 to 20 mm, and a black mold layer is born on the lesion.

Control methods: 1) Agricultural control: When planting bell peppers, ridges are used to plant double trees densely to increase the leaf area coefficient. Strengthen water and fertilizer management:

Especially in the flowering and fruiting period, it should be watered in a timely and uniform manner to keep the ground moist, and the application of phosphorus and potassium fertilizer can be applied to 1000 times of the liquid of potassium dihydrogen phosphate of Baneda Bica, so as to promote fruit development and reduce diseases. Timely control of pests and diseases: prevent early defoliation caused by anthracnose, virus diseases, scabs, aphids and mites.

2) Pharmaceutical prevention and control: spray 58% methalene, manganese-zinc wettable powder 500 times liquid + new high-lipid film mixed in the early stage of the disease to enhance the prevention and control effect.

The most effective way to do this should be to use medications. Of course, there are other options.

If necessary, you can read books on this subject, which will help you improve your skills.

Capsicum purpuropathy.

It is mainly caused by phosphorus deficiency, which is generally caused by low phosphorus content in the soil, too dry soil or too low ground temperature.

Control methods: increase the ground temperature and water in time so that the plants can effectively absorb phosphorus.

Sufficient organic amount and cover fertilizer were applied to increase the content of available phosphorus in the soil. At the same time, pay attention to the supplement of magnesium shed, because magnesium deficiency will affect the absorption of phosphorus by potato plants.

Emergency measures. After the symptoms of purpura disease appear, 99% potassium dihydrogen phosphate 1 000 times + 4% alginic acid 500 times can be sprayed.