What medicine should be used for cabbage root rot and what medicine should be used for cabbage root

Commonly used agents are:

3000-4000 times of agricultural streptomycin sulfate soluble powder, 4000 times of neophytomycin, 350 times of 14% copper ammonia aqueous solution, 700-750 times of 47% Garinone wettable powder. Spray once every 7-10 days, 2-3 times in a row.

7 Calcium chloride and naphthalene acetic acid mixture in appropriate proportions, spray onto the heart lobe every 7-10 days. Spray once at the seedling stage, rosette stage, and ball-forming stage.

3. Cabbage preservative. Add 15 to 20 kg of water per 15 grams, and spray once in the growth period and heart-wrapping stage of cabbage to enhance the disease resistance of cabbage. At the same time, it has a significant preventive effect on soft rot, black rot, downy mildew, virus disease and other diseases of cabbage.

Cabbage root rot is a common disease, and there are many causes of this disease, including root rot caused by physiological diseases, and pathological root rot caused by soft rot. This has a lot to do with excessive rainfall, high soil moisture, and high and low temperatures.

Cabbage belongs to the cold vegetables, the suitable temperature for growth is 10 22, not heat-resistant, when the temperature exceeds 32, the photosynthesis is very weak and the respiration is enhanced, and the growth is very weak.

Chinese cabbage is a moisture-loving vegetable, and moist soil conditions are required throughout the growing season, especially Chinese cabbage can not lack water in the rosette stage and the core stage. Cabbage is also not resistant to waterlogging, and long-term water staining will also cause the roots to die. Because in the high temperature season, if there is continuous rain, the soil is full of moisture, lack of oxygen, and the roots of cabbage have anaerobic respiration, which will lead to the death of root cells.

Hello. Irrigate the roots with chemicals. Before the onset of root rot, spray or irrigate with one of the following agents:

50% carbendazim wettable powder 600 times liquid; 50% thiophanate-methyl wettable powder 500 times liquid; 70% methyl tobuzine wettable powder 5o0 times liquid; 75% chlorothalonil wettable powder 6o0 times solution; Take the drug once every 7-10 days, 3-4 times in a row.

1. Carbendazim

After the cabbage rots the roots, carbendazim solution can be used on it. Cabbage root rot is caused by bacteria growing in the root soil and polluting cabbage, and the function of carbendazim is to remove bacteria, so after the cabbage root rot, it can be watered with diluted carbendazim solution to help the plant restore healthy growth.

2. Reduce watering

Cabbage root rot, may be watered too often, or long-term rain cause, in the later maintenance of cabbage, can be loosened soil, ventilation, discharge excess water in the soil, can also reduce the amount of water provided for cabbage, so that the plant better growth.

3. Maintain temperature

Cabbage root rot may also be due to the high ambient temperature. Cabbage is a cool-loving plant, suitable for growing in an environment of about 20 degrees, if you plant cabbage in high temperature weather in summer, it will lead to root rot phenomenon of cabbage, at this time you need to build a shade net for it, and ventilate and dissipate heat for the plant.

4. Stop fertilizing

Cabbage root rot may also be due to excessive fertilization. Cabbage in the process of growth of nutrients demand is larger, in the maintenance of the fertilizer provided for it too much, will lead to cabbage fertilizer, root rot, at this time can be poured into the soil a lot of water, dilute the fertilizer in the soil, help the plant to resume growth.

Chinese cabbage rots mainly because of wilting and soft rot.

1. Wilt disease: In the early stage of the disease, spray 600 times of 75% chlorothalonil wettable powder, or 500 times of 60% alum wettable powder, or 600 800 times of Pulik water solution, spray once every 7 10 days, and spray 2 3 times.

2. Soft rot: First, timely control of aphids, cabbage worms, diamondback moths and underground pests. Second, at the beginning of the disease, 72% of agricultural streptomycin 3000 4000 times liquid foliar spraying, spraying to the diseased plant and surrounding plants as the focus, and pay attention to spraying the petiole and stem base close to the ground, when the disease is serious, you can use 700 times the liquid of Dixon to irrigate the roots.

First, the cabbage root is damaged.

This situation mostly occurs when we transplant cabbage seedlings, and the roots of cabbage are damaged, which is one of the most common causes of cabbage yellow leaves.

Control measures When we transplant cabbage seedlings, we must water enough on the first day, and cut them into mounds for transplanting on the second day, so as to avoid damage to the roots and shorten the slow seedling period of cabbage.

Second, the yellow leaves of cabbage caused by drought or stagnant water.

Due to the soil is too dry and lacks water, the leaves of cabbage are dry and yellow and fall off.

Due to too much watering, the soil is waterlogged and the air permeability is poor, which hinders the growth of cabbage roots, thus causing the phenomenon of yellow leaves of cabbage.

Control measures: planting cabbage in high ridges, (controlling the height of the ridges at 20-25 cm,) to promote the growth and development of the root system.

Water lightly frequently, reduce the ground temperature, avoid stagnant water, pay attention to cultivating and draining, and keep the soil in a dry and wet state.

Root rot is a common disease of Chinese cabbage during planting, which will lead to the gradual death of Chinese cabbage, which seriously affects the yield and quality and reduces the economic benefits of farmers. So what causes Chinese cabbage root rot? What about rotten roots?

Let's take a closer look.

Causes of root rot of Chinese cabbage and prevention methods.

1. Rotten roots caused by roots.

Chinese cabbage is a semi-cold vegetable, prefers a mild and cold climate, is neither cold nor heat tolerant, and at the same time prefers a humid environment, but is not waterlogged. In the environment of high temperature or low temperature at the time of planting, if there is too much water accumulation in the soil during heavy rains during the rainy season, it will lead to necrosis of the root system due to lack of oxygen, resulting in root pruning. In addition, if the Chinese cabbage is in the high temperature period in the early growth stage, the high-temperature root will appear; On the other hand, in the late growth stage of Chinese cabbage, if the temperature is too low, low-temperature roots will appear.

Causes of root rot of Chinese cabbage and prevention methods.

2. Root rot caused by soft rot.

Soft rot is also one of the causes of root rot of Chinese cabbage, which is very prone to soft rot when planted on higher terrain and prone to water accumulation, and excessive application of nitrogen fertilizer, or insect bite or damage to the plant, resulting in the invasion of pathogens and infection of soft rot. Soft rot mainly harms the rhizome, the petiole appears water-stained, the outer leaf loses water and wilts, and the rhizome rots when the disease is severe. It is full of yellow sticky, emits a peculiar foul odor, and causes the whole plant to rot.

Causes of root rot of Chinese cabbage and prevention methods.

3. Preventive measures for rooting.

Choose a plot of land with higher terrain and good drainage to plant, so as to avoid excessive soil water accumulation and lead to the phenomenon of rooting, in the early stage of growth, in case of high temperature climate, you can go to shading measures to prevent high-temperature roots; In the later stage of growth, the low temperature can be increased by mulching and fertilizing to prevent low-temperature rooting. During planting, weeding can be done through tillage to increase the permeability of the plant, so that the root system can breathe and stretch normally, and in the later stage of growth, tillage can also improve the low temperature, so that it can reduce the probability of frost damage. Drain water in time after rain to prevent rain and waterlogging, and it is strictly forbidden to flood irrigation when watering, so as not to root up.

Causes of root rot of Chinese cabbage and prevention methods.

4. Soft rot prevention and control methods.

Precautions against soft rot are also avoided on low-lying, sticky plots, and solanaceae, melons and fruits, and cruciferous vegetables should be avoided before planting plots. At the onset of the disease, it can be sprayed with agricultural streptomycin sulfate or neophytomycin, once a week, and sprayed 2-3 times continuously depending on the condition.

Causes of root rot of Chinese cabbage and prevention methods.

The above are the causes of Chinese cabbage root rot and the prevention and control methods.

Green exhibition plus root rot spirit irrigation roots, this effect will be good.

Hello. Irrigate the roots with chemicals. Before the onset of root rot, spray or irrigate with one of the following agents:

50% carbendazim wettable powder 600 times liquid; 50% thiophanate-methyl wettable powder 500 times liquid; Split 70% methyl tobuzin wettable powder 5o0 times liquid; 75% chlorothalonil wettable powder bridge 6o0 times; Take the drug once every 7-10 days, 3-4 times in a row.

Cabbage rotten roots can be prepared with chlorobromoisocyanuric acid, mesomycin, and copper.

1. Chlorobromoisocyanuric acid

Cabbage soft rot is a bacterial disease, which begins to develop at the beginning of bulbling and wilts at noon, which is a symptom of the early stage of disease. Chlorbromoisocyanuric acid has a certain prevention and control effect on bacterial diseases, fungal diseases and viruses, and has a good effect on preventing diseases.

In the early stage of cabbage soft rot, 50% chlorobromoisocyanuric acid 1200 times can be used to control it with foliar spray, which has the ability to kill germs and promote plant growth.

2. Mesobioticin

It is a protective fungicide, which can be used to prevent soft rot of Chinese cabbage and spray in the early stage of disease. Spray every 10 days, 3 to 4 times from rosette to late ball. When soft rot occurs sporadically in cabbage, the rotten leaves should be taken out of the field, and the whole field can be sprayed with pesticides to sterilize and inhibit the spread of the disease.

3. Copper preparation

When the occurrence of soft rot is more serious, copper preparations can be used for prevention and control. On cabbage, copper hydroxide, Bordeaux liquid, copper ammonia, etc. are generally not used. Cabbage is more sensitive to copper, so it is necessary to use copper preparations with caution, and can not increase the concentration at will.

Thiazobactyl copper has two effects: protective and first-class, and has a good effect on the prevention and control of bacterial diseases such as cabbage soft rot and bacterial horn spot. When used, there are two methods: foliar spray and root irrigation.

Cabbage rotten roots can be mixed with carbendazim or Bordeaux liquid after watering, watering the roots, the proportion of water, be sure to follow the instructions!

The diseased trees are removed first, and then the drug is chlorobromide, isocyanuric acid, or octamine acetate, which is administered continuously for five to seven days, depending on the disease.