What are the methods of apple tree root rot control?

The root rot of apple trees should first be cut and checked, if the big roots are rotten and cannot be removed, it is recommended to dig them out. If the peripheral root tips and capillary roots are rotten, it is recommended to follow a three-step method for prevention. Root rot is a soil-borne disease in which the pathogen spreads to adjacent plants through root-to-root contact and irrigation between adjacent trees.

When one plant is diseased, it often causes infection in the neighbors; Many trees get diseased, often causing a diseased tree; If you leave it alone, it won't take three years to destroy an orchard.

Step 1: Dig a trench for isolation. If a diseased plant is found, it is best to dig a trench at intervals with a good tree to isolate it to prevent the spread of pathogens to healthy plants and disease-free areas, and the depth of the ditch around the diseased area shall not be less than 80 cm.

Step 2: Dry the roots in a planing pan. After isolation, the topsoil of each tree in the affected area was planed and dried for 1 3 days. One can cut off the large lateral roots of the disease, the second is that sunlight is a good natural fungicide, and the third can increase the air permeability of the soil of the diseased plant and inhibit the development of the disease.

Step 3: Irrigation of medicinal fertilizer, directly irrigated or irrigated with water with root Shangya, and the second is to apply Wanjianeng biological fertilizer. A probiotic environment can be formed through the supplementation of probiotics, which has a significant effect on the prevention and control of a variety of soil-borne diseases.

Summary. Hello, glad for your question. The prevention and control methods of apple tree rot are as follows:

1. Scrape the scar and use a small brush to fully apply alkaline water to the scar wound, which is about 5 cm beyond the scar, so that the alkali solution can be fully impregnated into the bark. When using, first scrape the scar, and use a small brush or brush to apply garlic liquid to the scar wound, and the surrounding area should exceed the scar 3 5 cm. 2. Cut the skin around the scar into a smooth stubble of about 60 degrees, and then rub the garlic clove directly on the scraped wound, and the rubbing should be uniform and meticulous, so that 1 layer of garlic mucus is evenly attached.

After 7 days, apply it again once, which is both economical and miraculous.

What is the prevention and control of apple tree rot disease?

Hello, glad for your question. The prevention and control methods of apple tree rot disease are: 1. Scrape the scar clean, and use a small brush to fully apply alkaline water to the scar wound, which is about 5 cm beyond the scar, so that the alkali solution can be fully impregnated into the bark.

When using, first scrape the scar, and use a small brush or brush to apply garlic liquid to the scar wound, and the surrounding area should exceed the scar 3 5 cm. 2. Cut the skin around the scar into a smooth stubble of about 60 degrees, and then rub the garlic clove directly on the scraped wound, and the rubbing should be uniform and meticulous, so that 1 layer of garlic mucus is evenly attached. After 7 days, apply it again once, which is both economical and miraculous.

3. Mud application prevention and control. Take fresh soil and mix it with water, the degree of wetness is that the hand is kneaded into a ball to adhere to the bark, apply 3 5 cm on the scar of the fruit tree, and then wrap it tightly with plastic film to prevent evaporation and soil shedding. After 1 year, the plastic film and mud are removed.

In this way, aerobic bacteria will suffocate and die due to long-term lack of oxygen. The rate of this method is more than 90%. 4. Impregnation in salt water.

Prepare 1 40 light salt water with 1 kg of salt and 40 kg of water, boil it over fire and let it cool. The rotting scars of the fruit trees are scraped and the salt water is applied to the scars with a brush or brush tool such as a brush or brush, so that they are impregnated into the bark to sterilize and disinfect. Apply 1 more time after two weeks.

The rate of this method is more than 80%.

5. Alkaline water impregnation. Edible alkali and water are prepared into an alkali solution in a ratio of 1 5. Scrape the scar and use a small brush to fully apply alkaline water to the scar wound, about 5 cm beyond the scar, so that the alkali solution can be fully impregnated into the bark.

Then, wrap it tightly with plastic film. After 10 days, it will be done again, and the plastic film will be lifted after half a year. The rate of this method is more than 85%.

6. Garlic liquid sterilization. Mash the garlic into garlic puree and add 10% salt water in a ratio of 1 to 1 to prepare a garlic liquid. When using, first scrape the scar, and use a small brush or brush to apply garlic liquid to the scar wound, and the surrounding area should exceed the scar 3 5 cm.

The rate of this method can reach more than 95%.

7. Traditional Chinese medicine preparations. After scraping off the lesions, apply the original solution of Ulric-Ulcer Spirit, use a small brush or brush to apply the Ulcer Essence Essence to the scar wound, and make up for it once every 7 days in severe cases, in addition to sterilization, the most important role is to heal the wound, and the healing width of the tree is more than 1 cm, and it will not **.

1. Bridging. In order to prevent the weakening of the tree, it is necessary to bridge the tree body to make up for the lack of nutrient transportation and protect the tree body.

2. Remove germs in time. After the fruit is harvested, the garden should be cleaned in time, the fallen leaves should be swept away, the diseased and dead branches and diseased insect branches in the garden should be removed, the coarse old warped bark should be scraped off, and the rotten bark and debris scraped from the diseased branches of the diseased trees should be cleaned up in time and destroyed in a centralized manner. Reduce the number of pathogenic bacteria and lay a good foundation for the prevention and control of rot disease.

3. Do regular inspections in a timely manner. Rot disease should be checked regularly, and it should be found with **. The small scars should be scratched, the large scars should be curetted, and the medicine should be applied in time, and the wounds that were smeared should be re-examined.

Commonly used agents: Fulanke, Guokangbao, tebuconazole, flusilazole, propiconazole, Letu No. 2, stone sulfur mixture, etc.

It can be controlled by watering, spraying insect repellents, spraying pesticides, spraying nutrient solutions and fertilizing.

The roots are dug up, the infected parts are removed, and then the roots are dried, which is treated with microbial agents. Be sure to pay attention to ventilation.

This situation may be the result of fungal attack on the roots of fruit trees, and can be treated with pesticides**, which use fungal agents to irrigate the roots of fruit trees.

If this happens, we should first dig up its roots, remove its rotten parts, and then replant and cultivate, according to a reasonable method, and regularly fertilize to increase its quality and yield.

It is necessary to remove the infected part, prune the branches in time, strengthen field management, and strengthen ventilation.

Summary. Apple rot is one of the most common diseases of apple trees and is known as the "cancer of apples". The disease seriously affects the yield and quality of apples, and in severe cases, causes the death of fruit trees or even the destruction of orchards. The following control methods are simple and practical, for the reference of fruit farmers.

Methods for the prevention and control of apple tree rot disease.

Apple rot is one of the most common diseases of apple trees and is known as the "cancer of apples". The disease seriously affects the yield and quality of apples, and in severe cases, causes the death of fruit trees or even the destruction of orchards. The following control methods are simple and practical, for the reference of fruit farmers.

1.Chili liquor method: 50 grams of pointed red pepper (fresh chili pepper is better), chop it with a knife and put it into 500 grams of liquor, seal it for half a month and then use it.

In order to prevent the infection and expansion of the disease, it should be 1 cm beyond the edge of the lesion, the wound should be scraped smooth, and then smeared with chili wine, and then applied again after 7 days until it heals.

2.Nicotinic mixture method: 3 kg of industrial alkali mixed with 50 kg of water to make alkaline solution, and then add the kilogram of shredded dry tobacco stem, sealed for 3 days is nicotine mixture.

First scrape off the rotten skin of the apple tree with a knife, and then apply the nicotine mixture to the affected area, and apply it several times in a rowAlkaline water impregnation method: the edible alkaline surface and water are prepared into an alkali solution in the ratio of 1 5.

Scrape the scar and apply the alkaline water to the scar with a small brush, more than 5 cm around the scar, so that the alkali solution can fully enter the bark. Then wrap it tightly with plastic film. Apply again after 10 days, and remove the plastic film after half a year.

The rate of this method is more than 85%.

4.Brine impregnation method: Prepare salt water in the proportion of table salt, put it in a pot and boil, let it cool and set aside.

In March, April or August, September scrape off the scar, and use a sharp knife to scrape off all the scar necrotic bark on the branches of the fruit tree, so that there is no diseased tissue around the scraped scar. The bark around the scar is then cut into an inclined plane of 45 to 60 degrees to facilitate the healing of the scar. Apply the salt water to the scar after scraping with a brush, the application range should exceed 2 cm of the scar, scrape one place, apply one place, and apply it again after half a month.

5.Garlic liquid sterilization method: Mash the garlic into garlic puree, and add 10% salt water according to the ratio of 1 to 1 to make garlic liquid.

Scrape the scar first, apply the garlic liquid to the scar with a small brush or brush, 3 5 cm beyond the scar, and apply it again after 10 days. The rate of this method is more than 90%.

6.Caustic soda method: Use the caustic soda stock solution and 5 times water to apply the healthy bark of the affected area and the surrounding centimeters. After 3 days of application, the affected area dried up, atrophied and hardened, and after 10 days, the surrounding skin formed a callus.

Finally, I wish you all the best! <>

Root rot is a fungal disease, which generally occurs from late March to early April, and enters the peak period of disease in May, and its occurrence is greatly related to climatic conditions. Low temperature, high humidity and insufficient light in the seedbed are the main environmental conditions that cause this disease.

It can be diluted 1000-1200 times by the resurrection spirit of Zhongwei Happy Forest, evenly sprayed with soil balls before transplanting or watered the root system for a week after transplanting, and then watered thoroughly. It can not only prevent and control root diseases, but also promote the recovery of old roots, germinate new effective roots, and improve the disease resistance and rejuvenation ability of trees.

Root rot, buying bucket heavy stubble can be solved, ** there are, I think it's okay, you can also try it.

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.

When it is found that the crown leaves are wilted or the young leaves at the top of the new shoots have dry tips and scorched edges, immediately dig up the soil around the trunk to expose the large roots, and then irrigate the roots with aqueous solution of oxamycolin (10 kg of water per 10 grams of chlormycofen), and then irrigate again every 7 days. It is then backfilled with new topsoil.

9281 smearing root irrigation method Dig up the soil of the roots of the apple tree with root rot symptoms, expose the large roots and the main lateral roots, carry out root inspection, cut off the rotten part from its adjacent good tissue, cut off the upper large roots, every 1 2 cm to draw a longitudinal path, the depth is appropriate to penetrate the root bark, and then use 3 times the liquid 9281 to smear the large roots, and then use 200 times the liquid 9281 to irrigate the roots, the amount of water to irrigate the soil around the roots until it is irrigated, after two days of drying, take new topsoil from other places and backfill.

Grass ash mulching method Peel off the soil under the apple tree with root rot symptoms, expose the roots, scrape off the rotten parts, dry the roots for a period of time, and then apply kilograms of plant ash to each plant, and add a little soil to cover. Grass ash is a fertilizer containing potassium and phosphorus, and apple root rot also has the effect of enhancing tree potential and improving tree disease resistance.

Using the above methods to control the root rot of apple trees, new roots can be sent out after 2 months, and the tree strength recovers year by year.