What pesticide is better for cabbage root disease?

Chinese cabbage root disease, also known as macroroot disease, mainly affects cruciferous family.

Rotation of water and drought crops or rotation with crops outside the host range for 4 to 5 years can effectively reduce diseases; Increasing the application of lime and adjusting soil acidity can reduce the incidence of disease.

Pentachloronitrobenzene and carbendazim are used for the prevention and control of pharmaceuticals.

Tobuzin, benzelide, clotodan and other agents are applied in holes and furrows, or the liquid is dipped in the roots, or the medicinal mud is dipped in the roots, which has a better control effect, and avermectin can also be used.

Compound phosphine.

Root irrigation. Management techniques and management methods of Chinese cabbage.

Chinese cabbage should not lack water during the growth period, and it is necessary to water it reasonably according to different periods, especially from the end of the rosette stage to the clumping stage, and the soil needs to be kept moist. Chinese cabbage was fertilized with sufficient basal fertilizer, top dressing began after planting, the concentration of fertilizer was reduced at the rosette stage, and potassium fertilizer was added after the Chinese cabbage was wrapped. Wait for the Chinese cabbage to grow 2-3 true leaves.

, carry out thinning. During the cultivation period, it is necessary to cultivate and weed, and the pests and diseases should be controlled during the growth period.

1. Water management.

Chinese cabbage can not lack water during the growth period, according to different periods to water reasonably, in the seedling stage should be watered a small amount, watering more frequently, so as to keep the soil moist. When it comes to the rosette, it needs to be watered intermittently, and it is dry and wet. When the ball is formed, the water requirement is higher, when the soil is dry, furrow irrigation can be used, and it can be watered in the evening or at night after the ground temperature is reduced, giving sufficient water, this time period can not lack water, keeping the soil moist is the key to improving yield and promoting high yield.

2. Nutrient management.

Chinese cabbage should be applied before the base fertilizer, and after the planting is alive, you can start top dressing, every 3-4 days to apply a rotten fertilizer, each fertilizer must not be too much. When Chinese cabbage enters the rosette stage, attention should be paid to top dressing and reduce the concentration of fertilizer. After the Chinese cabbage begins to wrap the heart, it is necessary to focus on top dressing and increase the application of trium potassium dihydrogen phosphate fertilizer.

3. And time seedlings.

When the Chinese cabbage grows 2-3 true leaves, you can carry out seedling thinning, and pull out the small seedlings that are weak, diseased, pests, and deformed. When 5-6 true leaves have grown, seedlings can be thinned again.

Fourth, cultivating and weeding.

When cultivating Chinese cabbage, it is necessary to cultivate and weed, and the soil needs to be loosened regularly in the early stage of growth to keep the soil loose and transparent, which can be conducive to growth. Weeding Chinese cabbage 2-3 times during the growing period to remove weeds and reduce nutrient contention.

5. Pest control.

Pests and diseases may occur during the growth of Chinese cabbage, which should be controlled in time.

**The pesticide of cabbage root disease, of course, is the kind that increases the beard hair, and the organic fertilizer will make his beard hair grow better, and it will not come out.

Of course, beard farmers are added to the cabbage root farmers. Fat hair and hair grow and don't come out.

Imidacloprid: 10% imidacloprid wettable powder 1000-1500 times liquid and acetamiprid agent alternately. Cypermethrin:

Use 2000 times of cypermethrin for spraying. Frost urea manganese zinc: spray 72% frost urea manganese zinc 600-800 times solution for cabbage.

Self-medicated agent: sweet and sour liquid is made from sugar, vinegar, liquor and trichlorfon.

1. Imidacloprid

If cabbage seedlings are harmed by aphids and whiteflies, 10% imidacloprid wettable powder 1000-1500 times can be used alternately with acetamiprid, sprayed 2-3 times in a row, with an interval of 7-10 days, and pay attention to spraying on the back of the leaves, which is the gathering place of pests.

2. Cypermethrin

When the cabbage is in the seedling stage, if it suffers from the gnawing of cabbage worms and noctuidae, you can use cypermethrin 2000 times and cyhalothrin 3000 times for alternate spraying, and the spraying time should be selected in the evening on a sunny day, and the drug is prohibited in the rainy season.

3. Frost urea manganese zinc

Cabbage seedlings are susceptible to downy mildew and soft rot, and after the plant is infected with downy mildew, 600-800 times of 72% frost urea manganese-zinc wettable powder and 1500 times of 25% di-noyylamide suspension should be used in rotation, while soft rot can be used with 4000 times of 72% agricultural streptomycin sulfate**.

4. Self-medicated agents

Pests at the seedling stage of cabbage can be booby-trapped with self-medicated agents, mix 3 parts of sugar, 3 parts of vinegar and 1 part of high liquor, add 10 parts of water, plus 90% of crystal trichlorfon, mix them evenly and put them in a large bowl, place one portion per 80 square meters of farmland, open it at night, and cover it during the day.

Summary. Dear, hello, the prevention and control of pesticides with pentachloronitrobenzene, carbendazim, tobuzin, benzolite, clotodan and other agents cavitation, furrow application, or liquid medicine dipped in the root, or the medicine mud dipping the root, has a good control effect, can also avermectin compound phosphine phosphine root irrigation.

Dear, hello, the early prevention and treatment of pharmaceutical tremors with pentachloronitrobenzene, carbendazim, tobuzin, benzolite, clotodan and other agents acupuncture, furrow application, or liquid medicine dipped in the root, or the medicine mud dipping the root, has a good control effect, and I also guess that avermectin can be compounded with phoxanthion eggplant Zhaoque irrigation root.

I need soil disinfection, large-scale, not targeted.

Dear, hello, cabbage root disease is due to the acidity of the soil, which can be improved with lime, and can also be prevented and controlled with fungicides such as chemical agents carbendazim.

Targeted is to find out against **! What I need now is to disinfect the soil.

What lime works best! Quicklime or slaked lime.

Hello, hydrated lime can, how many kilometers is an acre of sweaty land.

Hello, cabbage root disease.

1. Implement crop rotation: more than 4-5 years of rotation between diseased fields and non-cruciferous vegetables. Second, increase the application of lime:

60-80 kg per mu (or plant ash) to increase soil pH. 3. High furrow drainage. Fourth, the prevention and treatment of pharmaceuticals

Carbendazim and other canopy agents are soil disinfected, 4 kg per mu. Obixiang.

Now I have the soil here, the big root disease is very serious, the basic planting is not big cabbage, greens, radish, etc., can not be planted, hello, when you don't hit, you can change the soil well.

Hello, what pesticides are used for cabbage root disease, what pesticides are used for the prevention and control of cabbage root disease, pentachloronitrobenzene, carbendazim, carbendazim, carbendazim, etc., are applied in the hole, ditch, or dipped in the roots, or the medicine slurry is dipped in the roots, which has a good control effect, and can also be supplemented with avermectin and phoxanthion to irrigate the roots. If you have any questions, I will answer them carefully; If my answer is helpful to you, please give a thumbs up (comment in the lower left corner), look forward to your file likes, your efforts are very important to me, and your support is also the motivation for my progress. If you feel that my answer is still satisfactory, you can click on my avatar for one-on-one consultation.

Finally, I wish you good health and a good mood!