What is the cure for apple tree rot disease, and what should I do if an apple tree has rot disease?

1. Master the rules. Apple branch rot is the most important disease that causes the destruction of the garden, which has the characteristics of "infection in early summer, spread in autumn and winter, onset in spring, bullying the soft and afraid of the hard". The pathogenic bacteria overwinter in the bark of the diseased tree or the xylem of the diseased scar, and the diseased spots produce conidia in late spring and early summer, and the spores are spread with wind and rain, and invade the tree body from the sawing edge, frostbite wound, injured wound or leaf scars with dead tissue, fruit platform and fruit stalk marks, and falling cortex, etc., and the disease is latent in autumn and winter, and the incidence peak occurs in the spring of the next year.

2. Prevention methods. Fertilizer and water to strengthen the tree: rot disease is a weakly parasitic fungus, which can be enhanced by increasing the application of "Zhuang Jiabao" organic fungus fertilizer, filling frozen water, reasonable load, leaf raising and leaf preservation, etc., and improve the disease resistance of the tree.

Relevant experiments show that winter irrigation can effectively avoid the freezing damage of branches and promote wound healing caused by physiological water loss of fruit trees, so as to achieve the purpose of frost prevention and disease prevention. Pruning for disease prevention:

Professor Cao Keqiang's research shows that the infection rate of rot disease from the saw mouth in winter is as high as 63%, and the severe cold fruit area can be changed from winter pruning to early spring pruning, so as to avoid freezing damage to the saw mouth in winter. The orchard scissors of winter shearing should be coated with healing agent or mud coating in time to promote wound healing and prevent diseases from entering the mouth.

Three spray prevention: that is, after bagging, after fruit picking, before germination three critical periods, regardless of whether the branches have harmful symptoms, you can use "fluorosilicon silicon 200 times or Guokangbao 50 times, peracetic acid 20 times, propiconazole 500 times" to brush the branches to eradicate the initial infection of pathogenic bacteria.

How to prevent apple tree rot disease, how to **, authoritative interpretation.

That won't solve the root problem, chemical pesticides can't kill the black rot crust inside the bark, so keep scraping next year.

The prevention and control of apple tree rot disease, for many years, people only pay attention to spring prevention and control, but ignore the autumn prevention and control, resulting in a high rate of the disease, can not be thorough, but according to the incidence of rot disease, the spring scraping treatment drug is changed to autumn prevention and control, combined with spring prevention and control, and bridging the large disease spots, can receive good control results.

First, the law of apple rot pathogen is a weakly parasitic fungus, which overwinters on the bark with mycelium, conidia and molecular spore angles, and the pathogen spores spread the damage by rainwater splashing. Summer is the active growth period of apple trees, which is not conducive to the spread of pathogens and pathogenesis. However, the dying tissues in the litter and other parts of the bark create good conditions for the spread and infection of rot disease, and the bacteria that invade the bark form small epidermal ulcer spots after expansion. When the tree enters the dormant period, the living ability decreases, the onset accelerates, and a small peak of disease appears, and the symptoms are obvious, but the deep rest period expands slowly.

2. Prevention and control measures According to the characteristics of the spores of the pathogen spread by rain in summer, after scraping off the dead tissues of the fallen cortex, the stem of the tree and the branches of diseased insects in autumn, apply 50 times 4% pesticide resistance 720 fruit tree liquid to eliminate the latent infection base of pathogenic bacteria. Combined with the prevention and control of other diseases of fruit trees, 4% pesticide resistance 120 fruit tree type 600-800 times or 1 2 200 times Bordeaux solution 3-4 times a year is carefully and thoughtfully sprayed to eliminate pathogenic bacteria in the latent infection period and fundamentally control the onset of dormant period.

Many of our fruit farmers use the products of Shandong Nongshengren Company, they specialize in fruit tree care products, like their company's new enemy rot in the fruit tree rot disease This effect is very good, and they have opened Alibaba's first online service. Consultation is more convenient.

There are many kinds of medicines, effective and convenient, I recommend using the new enemy rot of Shandong Agricultural Sage, scraping off the rotten place, and applying the original solution on the line, which is effective ** rot disease, and has a good healing effect!

Summary. Pro, apple tree rot disease prevention and control methods: apply an organic fertilizer after picking fruits, 3 5 square meters of rotten animal manure per mu, 1000 2000 pounds of soybean meal commercial organic fertilizer per mu is appropriate, fertilize and strengthen the tree.

In early spring and late autumn, the rot lesions are scraped twice, the small lesions are coated with high-quality healing agents, and the large lesions are coated with mud.

How to cure apple tree rot disease.

Pro, apple tree rot disease prevention and control methods: apply an organic fertilizer after picking fruits, 3 5 square meters of rotten animal manure per mu, 1000 2000 pounds of soybean meal commercial organic fertilizer per mu is appropriate, fertilize and strengthen the tree. In early spring and late autumn, the rot lesions are scraped twice, the small lesions are coated with high-quality healing agents, and the large lesions are coated with mud.

The main problems in the prevention and control of rot disease are: heavy **, light prevention, light tree potential; Heavy spring curettage, light annual prevention**.

Kiss, apple tree rot disease is the most important disease that causes orchard destruction, and is called the cancer of apple trees by growers. The pathogenic bacteria overwinter in the bark of diseased trees or the xylem of diseased scars, and the lesions produce conidia in early spring, and the spores are spread by wind and rain, and after germination, they invade the tree from the saw, frost wounds, leaf scars with dead tissues, and the fallen cortex, and latent after invasion, showing a peak incidence in spring and autumn. The rot fungus is a weakly parasitic fungus, and the occurrence of the disease is closely related to the tree potential, the tree is strong, the pathogen can be latent for a long time, and the tree is weak and the disease is very fast.

1. Use light salt water mixture for prevention and control: salt, 2% soy sauce (bottled as a good % binder (flour is enough), add 50 kg of water, stir evenly in a pot, and boil for 10 15 minutes;

Put it in a bucket for later use (if you can't use it up at one time, you can seal the remaining mixture and store it for next time). After scraping off the affected part of the apple tree, apply it evenly with a brush dipped in the liquid medicine, apply it once in about 5 days, and use it 2 or 3 times in a row.

2. Prevention and treatment with vinegar: first use a sharp knife to scrape off the scar, and then use a brush dipped in vinegar to brush on the new stubble, brush once every 7 days, and brush 3 or 4 times in a row**. If the vinegar is boiled in advance, the control effect will be better.

How to prevent apple tree rot disease, how to **, authoritative interpretation.

The prevention and control of apple tree rot disease should start from the nutrition of the tree, apply organic fertilizer to enhance the tree potential after harvesting the fruit in autumn, try not to prune in the winter season, prune it in early spring, and apply fungus to protect the saw edge. Spot is found to be cured as soon as possible, and after scraping, apply fungus or mud to reduce the evaporation of wound water, and take the diseased residue out of the orchard for deep burial, and the fruit tree is reasonably loaded. There are detailed apple pest control measures on the National Apple Pest Control Collaboration Network, which is a public welfare**, you can go up and take a look.

In addition, Formearsine is a highly toxic pesticide, and the state has banned its use on fruit trees, so please prohibit it for the quality of the fruit.

Recently, the onset of apple white silk disease is very serious, and the main symptom is rhizome rot. I see that your apple tree is probably infringed by it, you have to quickly scrape off the diseased skin, reveal the new skin, use 100 times Tianda Oxazalin plus 50 times Tianda 2116 to disinfect and sterilize, and apply it again after 10 days.

**Rot, it is recommended to scrape out the DU rot disease, and the xylem has turned blackened.

For the plate, it is best to scrape the right oval shape for wound treatment, which is more conducive to wound healing or long death. It is best to cooperate with the ulcer rot produced by Weifang Aofeng to apply to the diseased part. In this way, the rotten parts treated before flowering can grow a new skin of 1-2 cm at the young fruit stage.

You said bai

The rot disease of the apple tree is the rot of the bark, so you have to scrape the rotten skin from the boundary of the good skin (of course, you have to bring back some of the good skin), A.

It is also possible to apply 50% magnesium-rich arsenic aqueous solution to the scar or to use a commercially available pesticide to prevent apple tree rot.

Apple tree rot disease has a great relationship with tree potential, strong trees are not easy to get, the weaker they are, the more they love, and partial nitrogen trees are also loved, so maintaining a strong tree is to prevent and control apple tree rot disease.

If the rot disease of the apple tree is very severe, it can be eradicated before germination in the spring**, that is, the whole tree is sprayed with magnesium and arsenic.

Tea seedling white silk disease is a common root disease in nurseries. The domestic zhi branch dao has a wide range of distribution, which is harmful.

Severe. In addition to the appearance of tea, it can still harm more than 200 kinds of plants such as melons, solanaceae, hemp, tobacco, peanuts, etc. It occurs in the root neck, the diseased part is brown at the beginning, and the surface is white wool-like, which expands around the root neck and is shaped or white silky film, which can expand to the soil surface.

In the later stage, rapeseed-like sclerotia is formed in the diseased part, turning from white to yellow-brown to black-brown. Due to the pathogenic effect of the pathogen, the cortex of the diseased plant decays, the transport of water and nutrients is blocked, the leaves wither and fall off, and finally the whole plant dies. It is a fungus of the genus Dermatomycetes of the subphylum Basidiomycetes.

The mycelium is colorless at first, then slightly brownish, dense, and forms sclerotia. The sclerotia are round, the surface is smooth, hard, and black-brown. Probasles, i.e., basidioids and basidiospores, are produced in hot and humid conditions, but they are uncommon and have little transmissive effect.

Tree rot is mostly harmed by tree trunks and forks. Hazard characteristics generally include blistering, discoloration, depression, soft rot, roughness, peeling, odor, etc.

Prevention and control measures: 1) Increase the application of phosphorus and potassium fertilizers and reasonable irrigation.

2) Strengthen scientific management, prune and prune, prune diseased and insect branches, and promote the healthy growth of trees.

3) At the beginning of the disease, apply 100-300 times of acetylenin mixed with agricultural streptomycin to smear the lesions. It is best to use a knife to make a few cuts on the lesion first, and then apply the medicine to facilitate the rapid absorption of the medicine. Other drugs include antibacterial, fumei sulfur and so on.

How to prevent apple tree rot disease, how to **, authoritative interpretation.

Use a pleasant healing agent with good results. The ingredient is thiamethoxone.

1. After the fruit is harvested and the leaves are dropped, before winter, dilute 50 100 times with this product and add special additives (small plastic bags) to stir evenly and spray the branches to prevent overwintering germs.

2. Before and after the beginning of spring, use this product to add special additives (small plastic bags), stir evenly, scrape off the rot lesions and apply it once, the wound heals quickly, the **rate is 98, and the **rate is controllable 3.

The prevention and control of rot disease should do the following:

1. Pruning to prevent disease, change winter pruning to early spring pruning, pruning tools and wounds should be pruned with disinfectants, such as pruning tool disinfectant, methyl naphthalene acetic acid, etc.

Second, spraying for prevention, such as, 45% dysenammonium aqueous solution 300 times liquid or tree Ankang preparation.

3. No matter what the season, as long as you see the lesions, you should do it, the sooner the better. After the lesions are scraped clean and thorough, apply humic ketone or methionacetic acid to the affected area.

Fourth, strong trees to prevent diseases, reasonable fertilization. The amount of organic fertilizer applied accounts for 60% of the year, and the load should be reasonable. Thinning flowers and fruits in time. For places prone to frost damage, it is recommended to whiten the sunny side of the trunk and main branches in winter.

Please use the healing agent of "Rotten Gram" to have a clear effect, **up to 98%.