Carbendazim Powder 10605-21-7

Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of carbendazim powder 10605-21-7 in China. Welcome to wholesale bulk high quality carbendazim powder 10605-21-7 for sale here from our factory. Good service and reasonable price are available.

Carbendazim Powder  is also known as mianweiling and benzimidazole No. 44. The pure product is a white crystalline powder. Insoluble in water, slightly soluble in acetone, chloroform and other organic solvents. It is soluble in inorganic acid and acetic acid and forms corresponding salts with stable chemical properties.

Carbendazim is a broad-spectrum fungicide, which has a control effect on diseases caused by fungi (such as seminaria and polycystic fungi) of many crops. It can be used for leaf spray, seed treatment and soil treatment. It can effectively control a variety of crop diseases caused by fungi and is widely used in China, but its residues can cause liver diseases and chromosome aberrations, which are toxic to mammals.

Synthesis of Carbendazim Powder:

1. Lime nitrogen (calcium cyanamide) method:

2. Thiourea method:

3. Urea method:

4. Thiocyanate method:

5. Cyanamide ethanethiol method:

6. Methyl thiourea formate ring closing method:

7. Transposition method:

8. Cyanamide chloroformate method:

1. Control wheat diseases

(1) Head smut of wheat. Use 100g of carbendazim active ingredient, add 4kg of water to evenly spray 100kg of wheat seeds, and then pile it up for 6 hours before sowing. You can also use 156 grams of multi falling effect ingredients, add 156 kilograms of water to mix well, and soak 100 kilograms of wheat seeds 36 ~. Then scoop out and sow. The liquid medicine can be used continuously.

(2) Wheat scab. If there is continuous rainy weather at the beginning of wheat flowering, 150-200g of 25% wettable powder and 50-80l of water should be spray every 667m2, and the second dose should be the same as the first dose every 5-7 days depending on the weather conditions and the development of the disease.

2. Control rice diseases

(1) Rice blast. Use 37.5 ~ 50g of carbendazim active ingredient every 667m Z, dilute with water to make constant or low volume spray. To control leaf blast, spray the first time when the disease center is found in the field, and spray again every 7 days. To control ear blast, spray ~ times at the break stage and full heading stage of rice.

(2) Rice sheath blight. The rice was sprayed once at the end of tillering and before booting. Use 37.5 ~ 50g of carbendazim active ingredient to spray water every 667m 2. Key points during spraying

Spray rice stems.

(3) Sclerotinia sclerotiorum of rice. Spraying was carried out from the jointing stage of round stalk to the heading stage of rice. Use 37.5 ~ 50g of carbendazim active ingredient every 667m 2, and spray 50 ~ 80L of water. Spray once every 5-7 days, 2-3 times in total.

3. Prevention and control of cotton diseases to prevent and control cotton bacterial wilt and anthracnose, 500 grams of carbendazim active ingredient shall be used for every 100 kilograms of seeds. The seed soaking method can also be used. 250 grams of carbendazim active ingredient and 250 kilograms of water can be used to soak 100 kilograms of seeds for 24 hours.

4. The prevention and control of Sclerotinia sclerotiorum in rape should be sprayed once at the flowering stage and at the final flowering stage. 37.5 ~ 62.5g of carbendazim active ingredient is used every 667m2, and 50 ~ 80L of water is spray.

5. Seed dressing with 50% carbendazim wettable powder is used to control peanut blight, stem rot and root rot. The amount of seed dressing is 0.5% 81% of the weight of seeds, that is, 500-1000 g of 50% carbendazim wettable powder is used for 100 kg of seeds. You can also soak the peanut seeds for 24 hours or moisten the seeds with water, and then mix the seeds according to the above dosage.

6. To control sweet potato black spot, soak the seed potato with 20000 times of liquid medicine for 10 minutes, or soak the seedling base with 30 mg / kg of liquid medicine for 3-5 minutes. The liquid medicine can be used for 7-10 times continuously.

7. Prevention and control of Vegetable Diseases

(1) Tomato early blight. At the initial stage of the disease, 31.3 ~ 37.5g of carbendazim active ingredient was used every '667m 2, and 50L of water was spray. Spray once every 7-10 days and spray 3-5 times continuously.

(2) Cucumber anthracnose. 2kg of 25% carbendazim wettable powder was added with 2000kg of soil and miscellaneous fertilizer, which was covered with medicinal soil.

8. Prevention and control of fruit tree diseases

(1) Pear scab. Use 250 times of 25% carbendazim wettable powder at the germination stage of pear trees, spray it for the first time, and spray it for the second time after falling flowers. The number of sprays will be determined according to the development of the disease. Generally, it is sprayed 3-4 times, with an interval of 7-10 days.

(2) Peach scab. Before bagging peaches, spray 200-400 times of 25% carbendazim wettable agent h every 7-10 days.

(3) Apple brown spot. After the disease first appears, use 25 cylo carbendazim w wet powder 250 ~ 400 times liquid spray. Spray once every 7-10 days.

(4) White rot, black pox and anthracnose of grapes. Spray 250 ~ 500 times of 25% carbendazim wettable powder every 10 ~ 15 days from the time of grape leaf spreading to the time of fruit coloring.

9. Prevention and control of flower diseases carbendazim has a certain preventive effect on dahlia flower rot, rose brown spot, Clivia leaf spot, Begonia gray spot, orchid anthracnose, leaf spot, flower powdery mildew, etc. Usage: use 25% carbendazim 250 times liquid spray at the initial stage of disease. The number of sprays is determined according to the development of the disease. Spray once every 7-10 days.

10. Prevent wounds from rotting when cutting succulent plants.

Mixed spray

When mixed with 400 times of 25% carbendazim wettable powder and 200 times of 40% aluminum triethylphosphonate wettable powder, it can also control downy mildew, white spot and cabbage downy mildew of cabbage, mustard and radish.

Seed dressing

The seeds were mixed with 50% carbendazim wettable powder, and the dosage varied according to the disease. The dosage is 0.4% of the seed quality to control Chinese cabbage brown spot and cabbage anthracnose.

Root irrigation

Dilute 12.5% synergic carbendazim soluble agent to 200-300 times of water, irrigate the roots at the beginning of the disease, 100 ml of the solution per plant, once every 10 days or so, for 2-3 times in succession, to prevent and control yellow leaf disease of cabbage and radish.

matters needing attention

(1) It is mixed with sulfur, mixed amino acids copper, zinc, manganese, magnesium, mancozeb, ammonium, formic acid, formic acid, zinc, pentachloronitrobenzene, thiocarbendazim propyl, benhezin, bromocarbendazim, acetochlor, Jinggangmycin, etc; It can be mixed with sodium disulfonate, mancozeb, chlorothalonil, wuyicotins, etc.

It was stopped 18 days before the vegetable harvest. This agent cannot be mixed with strong alkaline agent or copper containing agent, but should be used in turn with other agents.

(2) Do not use carbendazim alone for a long time, nor rotate it with thiocarbendazim, benomyl, thiocarbendazim methyl and other similar drugs. In areas where carbendazim is resistant to carbendazim, the method of increasing the dosage per unit area should not be used and should be resolutely stopped.

In the field of agriculture

 

• Disease prevention and control: This substance is mainly used to prevent and control various crop diseases caused by fungi, such as wheat Fusarium head blight, rice sheath blight, cotton Fusarium wilt, rapeseed rot, etc. By spraying or seed mixing, the growth and reproduction of pathogenic bacteria can be effectively inhibited, protecting crops from damage caused by diseases.
• Increase yield: Due to the effective control of disease occurrence and development by this compound, it can improve crop yield and quality.

Horticulture field

 

• Flower protection: This compound is also commonly used for the prevention and control of flower diseases, such as black spot disease and powdery mildew in roses, chrysanthemums, and other flowers. Regular spraying can maintain the healthy growth and beautiful appearance of flowers.
• Protection of ornamental plants: For other ornamental plants, such as potted plants, ornamental fruit trees, etc., it also has a protective effect and can prevent and treat diseases caused by fungi.

Other purposes

 

• Seed treatment: Mixing seeds with an appropriate amount of carbendazim powder before sowing can effectively prevent diseases caused by seed borne bacteria.
• Soil disinfection: Mixing this substance with soil can kill pathogens and pests in the soil, providing favorable conditions for the healthy growth of crops.

Carbendazim Powder, as a widely used agricultural fungicide, has adverse reactions involving multiple aspects such as human health, environmental safety, and special risks, as follows:

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