What to do with peach black spot? What is the disease of dark green spots on peaches

Peach Tree Black Spot Disease ** Protocol.

Spray: Liangguoan 150-300 times + Wofengsu 600 times + garlic oil 1000-1500 times + silicone spray.

Irrigation: R. solanacearum 150-300 times + Diliwang 100-300 times + Wofengsu 600 times irrigation capillary root area.

In the high incidence period of high temperature and high humidity or the initial appearance of the disease, the concentration of the Chinese (herbal) medicine Liangguoan can be increased to 100-150 times, sprayed continuously for 2-3 days, and the corresponding chemical drugs can be compounded if the condition is serious. control the spread of diseases; Enhance the tree's potential and improve the peach's disease resistance.

Peach tree black spot disease is harmful when it occurs, and it will reduce the yield of the entire orchard if it is serious, so all growers should take precautions in advance, otherwise it will cause serious economic losses.

Epidemic lawClimatic factors: The disease is usually severe about 4-15 days after the rain.

Density: Dense trees were mildly diseased, and non-dense trees were severely affected, but there was no significant difference in the upper part of the canopy.

Tree: Mature trees are seriously diseased, and there are more diseased fruits in the upper part of the tree.

Prevention and control methodsAgricultural control: strengthen orchard management. Increase the application of organic fertilizers such as farmhouse fertilizer and green manure, avoid partial application of nitrogen fertilizer, and apply appropriate amount of Bika medium element fertilizer; Reasonable pruning to ventilate the orchard and reduce the humidity of the microclimate; Water in time in the dry season, pay attention to drainage in the rainy season, ensure the water balance of the tree**, and prevent the fruit from cracking.

Calcium should be sprayed appropriately during the growth period to increase the calcium content of the fruit.

Chemical control: prevention and control of pesticides in the growth period, spraying from 3-5 days after flowering, once in 10-15 days, spraying 3-4 times in a row, can control the disease. Commonly used effective agents are:

600-800 times of 80% wettable powder, 300-400 times of polyantimycin wettable powder, and 1:4:240 times zinc sulfate lime solution, etc.

1. The occurrence of black spots in peach fruits is known to be caused by scab and anthracnose. The affected parts of the fruit are mostly in the shoulder. The lesions initially appear as dark brown round dots, and later become black mole-like spots with a diameter of 2 3 mm.

In severe cases, lesions often aggregate into patches. The spread of the pathogen is limited to the superficial tissues of the epidermis, and when the diseased tissues die, the fruit can continue to grow, so the diseased fruit often cracks. The posterior part of the peduncle is damaged, and the fruit often falls off early.

2. Prevention and control methods:

1) Fruit bagging.

2) Spraying 2000 times Tobuzin or 1500 times carbendazim twice at the young fruit stage.

Black spots on peaches may be infected with scab, which mainly damages the peach fruit, but also the leaves and branches of the peach tree. Small round spots of dark green appear on the fruit. It then expands into a 2-3 mm black-brown lesion, which remains green all around the lesion.

In severe cases, the lesions coalesce and become scab-like.

Peach trees have scab, which mainly harms peach fruits, but also peach leaves and branches. Fruit damage mostly occurs in the shoulder of the fruit. Initially, dark green round spots appear on the fruit.

After expansion, it becomes a dark-brown lesion of 2-3 mm, and the area around the lesion remains green throughout. In severe cases, the lesions can clump into crusts. It's like a lot of flies lying on their stomachs, making people look bad.

At this time, peaches are almost worthless - although they taste good, it looks unappetizing, and no one will find it tasteful. The lesions of scab are limited to the skin and do not penetrate deep into the flesh, so it does not affect the taste of the peach.

However, after the epidermal tissue of the peach fruit is infected and necrosis, the flesh will continue to grow, which may cause the surface of the fruit to crack, but the cracks are shallow and small, the fruit generally does not rot, and in addition, scabs usually appear on the sunny side of the fruit, especially on the shoulders.

If the peaches on the tree have black spots, it may be that they are ripe too well, and on the other hand, it is also possible that the peaches are lifespan and should be treated in time.

<> peaches are a very common fruit, and many farmers will grow them on a large scale to obtain economic benefits. In the planting of peaches, you will find that peaches will form black spots on the fruits or leaves during the peach blossom valley, then this kind of pest and disease is called peach scab, peach scab disease mainly harms the fruit of peaches, in the early stage of pests and diseases, it will be manifested as gray-green small round spots on the fruit, in the later stage of pests and diseases, these gray-green small round spots will gradually form black spots, and will be accompanied by some rot and depressions, damaging the normal growth and development of peaches. Peach scab disease is a kind of pest and disease that robes are very susceptible, generally in May to June of each year is the time period of high incidence of this disease, mainly due to the increase in precipitation in May and June, which brings fungi and other fungi, and then infects to form peach scab.

In the flower budding period of the peach growth period, it is necessary to spray pesticides to prevent black heart disease in advance. Secondly, it should be noted that pests and diseases of peaches should be prevented in advance, which is the fundamental key point. Secondly, when cultivating and planting peaches, it is necessary to prune the excess branches and buds, so as to ensure the nutrition of the main growth branches and ensure the normal growth and development of peaches.

It is also necessary to increase the application of organic fertilizer to loosen the orchard and clean the soil, which can effectively prevent the occurrence of pests and diseases in peaches. Only by fully mastering the preliminary work and cultivation techniques can we effectively ensure the normal growth and development of peaches, and finally achieve high yield and increase yield in the harvest season, so as to improve the economic benefits of farmers.

Peaches are a fruit that many people like, with a crisp and sweet taste, and can also be used to make desserts, peach juice and other drinks. At the same time, peach fruits are also rich in vitamins and proteins, and peach trees have a long history of planting technology and history, and they are a fruit that the public likes to see.

It may be caused by scab and anthrax, so it is necessary to remove the diseased fruit in time, water it regularly, take care of the field, and so on.

Scab and anthrax, which are commonly found in plants with many black spots on the fruit.

If there is this disease, it is likely to be infected with scab, and it may also be caused by anthrax, in this case, we must use pesticides in time, do a good job in field management, and ensure sufficient light.

It is very likely that it is scab, and once such a disease appears, it will affect the peaches, and some spots will also appear on the fruit, and the rate of spread will increase.

Most likely scab and anthrax. If there are these two diseases, black spots will grow, at this time we must water in time to ensure sufficient light, prescribe the right medicine, and spray some pesticides.

It is obviously a black heart disease, and there are so many black spots, which means that the plant has been infected by some germs, which will also affect the appearance of peaches.

Hello! According to your description, it should be scab, and the prevention and control methods are 1. Remove the source of primary infection: combined with winter shearing, remove diseased cores, stiff fruits, and stumps, and burn or bury them deeply.

During the growth period, diseased branches and dead branches can also be pruned and diseased fruits can be removed. 2. Strengthen management: pay attention to drainage after rain, prune reasonably, and prevent the orchard from being dense.

3. Choose disease-resistant (disease-avoiding) varieties: where the disease is often severe, you can choose to plant early lead ripening varieties. 4. Fruit bagging:

Bagging is carried out 3 to 4 weeks after flowering to prevent infestation. 5. Pesticide control: before flowering spike group, spray Baume 5 degrees stone sulfur mixture plus sodium pentachlorophenol or 45% crystal stone guess sulfur mixture 30 times solution.

Half a month after flowering, spray 500 times of 70% mancozeb wettable powder, or 80% anthrax Fumei wettable powder 800 times, or 70% methyl tobuzin wettable powder 1000 times, the above agents are used alternately with: 1:100 zinc sulfate lime solution or Baumé stone sulfur mixture, once every half month, a total of 3 4 times.

Combined with the prevention and control of brown rot spraying in the later stage of growth.

Summary. Peach scab disease, also known as scab disease, mainly harms the fruit of the peach tree, the fruit is mostly in the fruit pedicle part, the damage is only in the peel part, the disease part is born in the green round class, with the time delay to expand into purple-black or reddish-brown lesions, slightly concave, with the disease part of the wood plug and fruit expansion, the disease part is often cracked into a deformity. Rainy and high temperatures are conducive to the occurrence of this disease, which occurs in the yellow peach area.

What is the deal with peaches on a peach tree with black spots? There are many black spots on the surface of the peach fruit, how**? What medications are used?

Peach scab disease, also known as scab disease, mainly harms the fruit of the peach tree, the fruit is mostly in the fruit pedicle part, the damage is only in the peel part, the disease part is born in the green round class, with the time delay to expand into purple-black or reddish-brown lesions, slightly concave, with the disease part of the wood plug and fruit expansion, the disease part is often cracked into a deformity. Rainy and high temperatures are conducive to the occurrence of this disease, which occurs in the yellow peach area.

Strengthen management, improve the disease resistance of trees, appropriately increase bio-organic fertilizer and phosphorus and potassium fertilizer, prune reasonably, and pay attention to ventilation and light transmission and drainage of peach orchards. In late autumn and early winter, remove diseased and insect branches, stiff fruits and ground fallen fruits, and take them out of the park to burn or bury them deeply, so as to reduce the source of initial infection. Focus on prevention, prevention is better than cure, and reduce the chance of germ invasion.

Details determine success or failure, and technology drives agriculture. Spray 3 Baumé stone sulfur mixture at the flower bud stage, spray Lvheng No. 6 20 grams of ten 80% tebuconazole wettable powder 5000 times when the dew is red, Xie Hua for 15 days, spray with Xunze 1500 2000 times liquid, spray every 10 15 days, the medication should be gradual, alternate use, reduce resistance.

Excuse me, where did I get these medicines? Do you sell it there?

Ok thanks.

Do you see if it's this disease?

Generally speaking, it is the above disease.

The black spot of peach fruit is caused by scab invasion, and varieties that are sensitive to Bordeaux liquid and copper preparations can choose engine oil emulsion (cocozeb): mancozeb: water = 10:1:500 can effectively control scab.

In addition, 50% thiophanate-methyl (methyl tobuzin) wettable powder 500-600 times liquid or 50% benmonate-based wettable powder 1500 times liquid, 20% flusilazoleprochloraz 1000 times liquid, 50% Kexingxing wettable powder 500-600 times liquid, 25% oxycycloning emulsifiable concentrate 1000 times liquid, 65% zeb zeb wettable powder 600 times liquid.

Pay attention to the spraying evenly, so that the fruit surface and the front and back sides of the leaf can be sprayed. Recently, it has been reported that spraying 800-1000 times of 20% Haohan Gaoke flusilazoleprochlorazine in the early stage of the disease has an outstanding effect on the prevention and treatment of scab.

1. The occurrence of black spots in peach fruits is caused by scab and anthracnose. The affected parts of the fruit are mostly in the shoulder. The lesions initially appear as dark brown round dots, later become black mole-like spots with a diameter of 2 3 mm.

In severe cases, lesions often aggregate into patches. The spread of the pathogen is limited to the superficial tissues of the epidermis, and when the diseased tissues die, the fruit can continue to grow, so the diseased fruit often cracks. The posterior part of the peduncle is damaged, and the fruit often falls off early.

2. Prevention and control methods:

1) Fruit bagging.

2) Two sprays of 2000 times tobuzin or 1500 times carbendazim can be sprayed twice at the young fruit stage.

My family's golden-sleeved yellow peach is now a peach long shift what medicine to use.

Hello friends! Spots on peaches are caused by scab disease, <>

Prevention and control method 1, remove the source of primary infection: combined with winter shear, remove diseased cores, stiff fruits, and stumps, burn or bury deeply. During the growth period, diseased branches and dead branches can also be pruned and diseased fruits can be removed.

2. Strengthen management: pay attention to drainage after rain, prune reasonably, and prevent the orchard from being dense. 3. Choose disease-resistant (disease-avoiding) varieties

In places where the disease is often severe, early-maturing varieties can be planted. 4. Fruit bagging: bagging should be carried out 3 to 4 weeks after flowering to prevent infection.

5. Pesticide control: before flowering, spray Bomei 5 degrees of stone sulfur mixture plus sodium pentachlorophenol or 45% crystal stone sulfur mixture 30 times of liquid. Half a month after flowering, spray 500 times of 70% mancozeb wettable powder, or 800 times of 80% anthrax Fumei wettable powder, or 1000 times of 70% methyl tobuzin wettable powder

1:100 zinc sulfate lime liquid or Baumé stone sulfur mixture alternately, once every half month, a total of 3 4 times. Combined with the prevention and control of brown rot spraying in the later stage of growth.