What are the symptoms of peach tree brown rot?

First of all, the leaves will be very yellow, and they will wilt, and there will be a lot of symptoms, and there will be a lot of spots on the peaches, and the taste will also change.

The leaves of the peach tree will have some yellow-brown spots, and there will also be some brown spots, and if it is not treated in time, the peach tree will also rot, and the surface of the peach will also have some yellow-brown spots, and finally until it rots and falls. It will also cause the leaves of the peach tree to fall.

The symptoms of the disease are that the branches of the peach tree will lose their bark, the leaves of the peach tree will also rot, and the leaves will be accompanied by brown spots, and this disease will also affect the production of fruits.

The symptom of the disease is that the fruit surface produces brown round lesions, the flesh of the lesions rots, and finally loses water and shrinks to brown and falls.

If you find that the diseased branches and diseased fruits must be removed in time, burn and destroy, and if there are weeds, you must remove them in time, which can reduce bacteria and parasites, and you can also spray some pesticides to prevent peach tree brown rot.

It should be started in the selection of seed bulbs, and the disease-free seed bulbs should be selected, and those with slight symptoms can also be soaked and disinfected with green treasure solution.

Pesticides. Because my peach tree was cured of brown rot after being sprayed with pesticides, I can use pesticides to prevent it.

Peaches are a common fruit in our daily lives. Sweet and delicious, nutritious, and loved by people. Brown rot, also known as sclerotinia disease, is one of the main diseases of peach trees.

It is mainly distributed in North China, South China, coastal and northwest regions, especially in the coastal and lakeside areas of East China.

In rainy years, when fruit borers occur severely, they can cause devastating damage. The disease can infect peach, plum, apricot, cherry and other drupe fruit trees. The pathogen overwinters in stiff fruit and stem ulcer tissues and produces conidia for initial infection in the spring of the following year.

It is mainly transmitted by wind, rain and insects, and invades from stomata, dermis or wounds, mainly wounds. The occurrence of diseases is closely related to climate, cultivation conditions and varieties. There is rainy weather during the flowering period, which is prone to flower rot; When the fruit is close to ripe, the disease is severe in rainy and foggy weather.

During storage and transportation, if the fruit is exposed to high temperature and humidity, the disease will also be aggravated. The fruit is damaged throughout the growing season, especially near ripening and storage. At the initial stage of the disease, brown round lesions appear on the surface of the fruit, and the flesh of the diseased area turns brown and rots, and the lesions expand rapidly, which can spread to the entire surface of the fruit within a few days.

Yellowish-white or grayish-brown villous mildew layers appear on the surface of the lesions, which are arranged in concentric rings at first and then cover the entire fruit. The diseased fruit is rotten and dried, forming a hard fruit, which turns brown first and then black-brown, and the stiff fruit often hangs on the branch for a long time.

Peaches have the effects of relieving cough, moistening the intestines, improving anemia, regulating blood pressure, and promoting blood circulation. It has a certain effect on dry cough, constipation, anemia, hypertension and other diseases. Peaches are sweet, sour and warm in nature.

It is the fruit of the lungs. Suitable for lung diseases. It has the effect of relieving cough.

It can be used for dry cough. Peaches are rich in pectin and dietary fiber. These substances can absorb a large amount of water in the large intestine, help gastrointestinal peristalsis, help remove waste from the intestines, have a laxative effect, and can prevent constipation.

Peaches are high in iron and have a certain preventive health care effect on iron deficiency anemia or iron deficiency. Peaches are rich in potassium, which helps eliminate excess salt from the body and lowers blood pressure.

In rainy years, the fruit can develop tooth decay, and the virus can occur in severe cases. This virus will be transmitted by wind and rain insects, and this virus will be particularly serious in high temperature and humidity environment, which will also make the peach tree appear on the surface of the whole growth period A round lesion, and the flesh of the diseased area will also become rotten.

It's also called gray mold and sclerotinia sclerotiorum, and it's caused by some bacterial infection. The main thing is that the incidence will be higher in the juvenile and mature stages, and if you don't treat it, it is easy to cause rotten fruit and some shedding.

Sclerotinia sclerotinia can be said to be a very serious disease. There may be some yellowish-white velvet on it. And it may rot over time.

The main pattern of the disease is that this wound and ulcer appear on some branches or some fruits, so it is easy to lead to the breeding of viruses。We must pay attention to the inspection in winter, when we find that there are some open branches or some sleepy fruits, there are some open ulcers and rotten, then we must clean up in time, and if there are ulcers in some numbers, we must cut off some ulcers in time, or spray certain pesticides for prevention and control. If it is not effectively treated during the winter months, it can lead to bacterial infections that can lead to the development of this condition.

If you find that there are some wounds on the tree, or even some have dried up, then you should cut it off in time, do not let it remain on it, it is likely to become the source of virus breeding, and after cutting it off, it should be burned with fire to avoid bacterial reproduction. <>

Insects can also carry the germ and can spread it to trees. Insects are often free to know the activity, sometimes it is inevitable to encounter some germ parts, and some insects will gnaw some rotten fruits, naturally they will carry this virus and germs, and then fly to other trees, and will gnaw some bark or leaves and fruits, so that the virus will be transmitted to other trees, so we must also do a good job of insect control and sterilization. <>

Windy and rainy weather can also spread these viruses, leading to the occurrence of illnesses. When there is heavy rain or windy weather, then these viruses and bacteria will flutter in the wind, and it is likely that they will float on other trees, which will cause other trees to be infected with such viruses, which will cause damage to trees. <>

In the wind and rain weather, we must do a good job of prevention in advance, when found that there is strong wind and heavy rain, then after a period of time, when the rain is clear and the dew is dry, we must spray a certain amount of pesticides to prevent the occurrence of diseases, so as to reduce economic losses and reduce the appearance of diseases.

The occurrence law of peach brown rot shirt excavation: peach brown rot disease Yuxiang protobacterium belongs to the subphylum Ascomycetes. The asexual stage is the subphylum Semimycetes.

The pathogen mainly overwinters on trees or ground with mycelium on stiff fruits and diseased branches. Conidia are produced in the following year or in the spring of the nucleus, which are spread by wind and rain and insects, invade the fruit through wounds and skin pores, and invade the flower organs from the stigma nectar glands for primary infection. During the storage period, the diseased fruit can also be transmitted by contact with the healthy fruit.

It is easier to get sick in the spring when Hanhui buries the blue chain day, and there will be some rot when the disease occurs, which will affect the fruit of the peach tree, and the growth of the peach tree will be affected by the ants, and the yield of the peach tree will also be affected.

Peach tree brown rot is a fungal disease bend to eliminate damage, the pathogen overwinters with mycelium or sclerotia in the stiff fruit or branch canker, and produces conidia when the peach tree blooms in the second year, which is spread by wind and rain and insects, and invades the flower through the stigma nectar gland, and infects the fruit through insect wounds, mechanical injuries and skin holes. The pathogen can be infected from the flowering stage of peach trees to the mature and incubation stage, and when the conditions are suitable, the spores of the diseased part can be re-infected, and the infection occurs through the contact between the diseased fruit and the key fruit during the storage period.

Introduction: Peaches are a very delicious fruit, but often many merchants will face a lot of problems when planting peach trees, so farmers must pay attention to learning about planting peach trees before planting peach trees. <>

Because the peach trees are weak, and in many cases due to poor management of farmers, the local low-lying peach orchards with poor ventilation and light transmission will be prone to brown rot, because the pathogenic bacteria of brown rot form spores under high temperature conditions and begin to spread, this fungus can not only infect long-term growth of leaves and fruits, but also can infect ripe fruits, and some fruits will continue to be infected in the process of storage or transportation. <>

First of all, we must strengthen the management of peach sources, carry out reasonable fertilization and pest control, and must be coarse mold to intensively cultivate, improve the disease resistance of peach trees, and peach orchards are infected with this bacteria, we must completely remove the fruit that has been stiff, and to concentrate on burning the cleaning bacteria, and to control it through drugs, if the bacteria are serious, you can spray a mixture of grapefruit and crystalline sulfur before the peach germinates, and start spraying about a week after the flowering, you protect the fruitto prevent the occurrence of brown rot. <>

If the peach is infected with brown rot, then the damage of the peach will start to brown from the edge of the leaf at night, which will cause the whole leaf to wither but will not fall off, and after the petals and young leaves are infected, the germ will spread to the fruit diameter through the petioles, and the upper part will die, and if the disease is infected during the flowering period, it will cause the young fruit to be damaged when it is ripe, and the more ripe the fruit, the greater the possibility of damage, and under the influence of bad weather, the union will also quickly expand to the fruit, and the flesh will brown and dry rot.

The main reason is that there are a lot of bacteria and viruses on the peach tree, so it will cause such a situation, and you should choose to use some pesticides.

The cause of brown rot is that peach trees encounter low temperature and rain during the flowering and young fruit stages, and the fruit is buried in the cherry potato ripening stage and bent under high temperature and high humidity environmental conditions, which leads to a serious disease, which leads to a decrease in yield.

It may be the pure cause of the original number of pests and diseases, or the soil nutrients are less than the potato command, the ventilation is not in time, the humidity in the hospital is relatively heavy, and the top dressing is not on time, which will lead to this disease.

Failure to clean up the stagnant water in time, the moisture is particularly large, the humidity is particularly high, and the pesticides are not sprayed in time, so it will cause such a disease.

Peach tree brown rot symptoms, flower pots, ceramics complications.

It first infects the flowers and stigma apex, and often gradually produces dark brown water-soaked spots from the pistil and flowers, and then spreads until all the flowers turn brown and wither. At first, it is dark brown water trace-like spots, gradually surging to the calyx and flower stems, and when the moisture is large, the diseased flowers quickly rot, and the surface layer causes dark gray moldy substance. If the weather is dry, the diseased flowers will wither and shrink, and the remnants will be difficult to fall on the branches for a long time.

Leaves are concurrent. It gradually turns brown and wilts from the edge of the leaves, resulting in brownish-black water-like lesions, which gradually expand to the leaf stems, and the whole leaves wither.

Branches are concurrent. The branch damage is caused by the spread of diseased flowers and diseased leaves and stems, resulting in oval or fusiform dark brown dented lesions, with prominent edges, often easy to flow gum and dark gray mold layer, and when the lesions are circumferentially cut, the upper branches wither. Cause a long annular ulcer spot with purple-brown edges, black-brown in the middle, slightly concave in the middle, and slightly concave on the edges.

The fruit is concurrent. The fruit can be damaged during all growing seasons, with near-ripening and storage being severely damaged. In the early stage of fruit disease, dark brown annular lesions are caused on the fruit surface, the fruit of the diseased part becomes brown and rotten, the lesions expand rapidly, and can spread to all the fruit surfaces in a few days.

After the vine blight all rots, and the lack of water dries up and produces stiff fruits, which are dark brown at first, and then dark brown; Stiff fruit often hangs on the branch and is difficult to fall for a long time.

Brown rot in peach trees produces regular brown rot pathogens that spend the winter in stiff fruits and branch ulcerations, and cause the initial infection of conidia in the spring of the following year. It is transmitted by wind, rain and insects, and invades from vents, skin holes or wounds, where the wounds are the main ones. The occurrence of this disease is closely related to climate, planting standards and species.

During the flowering period, there is a rainy temperature, which is very prone to flower rot; When the fruit is nearly ripe and encounters rainy and snowy temperatures, the disease is more serious; In the whole process of storage and transportation, the natural environmental diseases will also be aggravated in case of high temperatures, high temperatures, and low temperatures.

Among the various types of peaches, all the species with thin exocarp and soft and tender fruits are infectious diseases; However, the stratum corneum was thick, the subcutaneous tissue had a high level of rhizome stemming, and the species with a harder and solid structure were more resistant to disease after the fruit ripening stage. The peach tree planting and cultivation technology of increasing yield is too dense, unreasonable pruning, poor natural ventilation and light transmittance, extensive planting management methods, weak plant type, low-lying terrain, and heavy soil clay soil cause serious damage. Under normal conditions, the flowers and leaves are infected, and the branches and fruits are infected, and the branches and fruits are infected, and the infestation occurs continuously since then, and in this city, the branches of fruit trees are generally pruned and the branches are seriously damaged.

The germination temperature of conidia ranged from 10-30 to 24-26. The suitable temperature for the growth and development of pathogenic bacteria is 24-25, and the fashionable temperature for Taoyuan disease is 21-27.

Disinfection can be carried out regularly, and good pesticides should be selected for prevention and control, and at the same time, it is necessary to learn to observe the specific growth situation.