What is the role and use of mancozeb?

1) English common name mancozeb (2) trade name mancozeb.

Dasheng, Penke, Bailian, Xinmanganese, Immediately Qing, Taisheng, Aifusen, Sukejing, Yining, Shandesheng, Jiaolide, and Shear.

3) Dosage form: % wettable powder, % suspension.

4) Properties and functions Mancozeb is an excellent protective fungicide and a low-toxicity pesticide. Due to its wide range of sterilization, not easy to produce resistance, and the control effect is significantly better than that of other similar fungicides, so the amount of use in the world has always been a large-tonnage product. At present, most of the compound fungicides in China are formulated by mancozeb processing, manganese and zinc trace elements.

It has obvious effect on crop growth and yield increase, and through more than ten years of field application, it has been used to prevent and control pear scab, apple spot defoliation, melon and vegetable blight, and downy mildew.

Field crop rust and other effects are remarkable, without any other fungicides can effectively control the occurrence of diseases, the quality is stable and reliable.

Main control objects: pear scab, citrus scab, canker, apple spot defoliation, grape downy mildew, lychee downy mildew, phytophthora mildew, green pepper blight, cucumber, muskmelon.

Watermelon downy mildew, tomato blight, cotton boll rot, wheat rust, powdery mildew, corn spot, stripe spot, tobacco black shin disease, flower blight, gray mold, flower rot, leaf spot, yam anthracnose.

Brown rot, root neck rot, spotted defoliation, etc.

5) How to use To prevent and control leaf spot, rust, scab, downy mildew and other diseases of jujube trees, apples, pears and other fruit trees, spray 1000 times 70% mancozeb wettable powder + 1000 times fruit tree special type "Tianda 2116" at the beginning of the disease, 1 time every 10 15 days, 2 3 times in a row. Pay attention to the Bordeaux liquid.

Use alternately. For the prevention and control of melon and vegetable blight, downy mildew and anthracnose, 600 800 times 70% mancozeb wettable powder + 600 times melon eggplant fruit type "Tianda 2116" liquid is used once every 7 14 days, and other pesticides are sprayed alternately in the middle.

To prevent and control downy mildew, powdery mildew, leaf spot, root rot and other diseases of field crops, 700 1000 times 70% mancozeb wettable powder + 600 times cotton, tobacco, flowers, grains and other special "Tianda 2116" liquid in the early stage of the disease, once every 7 14 days, alternately spraying other pesticides in the middle.

6) Precautions Pay attention to moisture-proof during storage, and store it in a dry and cool place to prevent decomposition and failure.

It should not be mixed with copper preparations and alkaline pesticides.

Mancozeb is an organosulfur-based protective fungicide. It is a high-efficiency, low-toxicity fungicide. There are two dosage forms: 70% and 80% mancozeb wettable powder. The trade names are: Dasheng, Shandesheng, etc.

Features: Mancozeb is a combination of mancozeb and zinc ions, which can inhibit the oxidation of pyruvate in the pathogen, thereby playing a bactericidal role. The bactericidal spectrum is wide, and the pathogen is not easy to produce resistance, and it has the best effect on manganese deficiency and zinc deficiency in fruit trees.

Usage: Before and at the beginning of grape disease, use 70% or 80% mancozeb 600 800 times solution to prevent and control grape downy mildew, white rot, anthracnose, black pox, etc. Spray 1 time every 7 10 days, can be used interchangeably with other fungicides.

Precautions: Do not mix with alkaline or copper-containing agents. It is toxic to fish and care should be taken to avoid contaminating the water source.

Mancozeb is an excellent protective fungicide, is a low-toxicity pesticide, its sterilization range is wide, not easy to produce resistance, the control effect is significantly better than other similar fungicides, manganese, zinc trace elements have obvious effect on crops to promote growth, increase yield, can enhance the ability of plants to resist diseases.

Most of the compound fungicides in China are made of mancozeb processing, which has a significant effect on the prevention and control of apple spot defoliation, pear scab, downy mildew, melon and vegetable blight, field crop rust, etc., and can effectively control the occurrence of diseases without any other fungicides, with stable and reliable quality.

Answer: mancozeb pure products are white powder, industrial products are gray-white or light yellow powder, rotten egg smell, insoluble in water, insoluble in most organic solvents, but soluble in pyridine, unstable to light, heat, humidity, easy to decompose carbon disulfide, alkaline substances or copper, mercury and other substances are easy to separate and release carbon disulfide and reduce efficiency, low volatility. The so-called protection is to provide ZN elements for plants, in addition to solving the symptoms of zinc deficiency, to enhance the ability of plants to resist diseases, so as to play a relatively bactericidal role.

The use of mancozeb 1, the prevention and control of rust, leaf spot, scab, downy mildew and other diseases of apples, pears, jujube trees and other fruit trees, in the early stage of the disease began to spray 80% mancozeb wettable powder 800 times liquid, plus day up to 2116 (fruit tree special type) 1000 times liquid, spray 1 time every 10-15 days, spray 2-3 times in a row, note that it can be used alternately with Bordeaux liquid. 2. For the prevention and control of melon and vegetable blight, anthracnose and downy mildew, 600-800 times of 80% mancozeb wettable powder can be used, and 600 times of 2116 (melon and eggplant fruit type) can be added to the day, and sprayed once every 7-14 days, and other pesticides can be sprayed alternately in the middle. 3. To prevent and control powdery mildew, leaf spot, downy mildew, root rot and other diseases of field crops, 80% mancozeb wettable powder can be used 700-1000 times in the early stage of the disease, plus 600 times the liquid of 2116 Zhuang Miaoling, sprayed once every 7-14 days, and other pesticides can be sprayed alternately in the middle.

Question: Is mancozeb effective against grape gray mold? Can it be used with chlorobromoisocyanuric acid?

It is mainly used for sterilization.

Ask a good question, thank you!

This pesticide is mixed with water, then thoroughly stirred, and finally sprayed on crops.

Some fruit trees can be used to prevent and control diseases. It can also prevent pests and diseases, and can be made into spray, and can also be made into a certain ratio to make a higher concentration of pesticides.

First of all, we must pay attention to the amount used, but also should pay attention to the problem of proportion, we must wear protective clothing when using, avoid contact with **, and then we should also add a little water, stir evenly, and do not mix with some other pesticides to avoid chemical reactions.

Be sure to pay attention to the time of splashing, dilute it with water appropriately, pay attention to the outside temperature when spraying, and also pay attention to the type of crop.

1. Single dose use: generally before the onset of crop diseases or in the early stage, the use of fully complex mancozeb alone can achieve a very good and pure preventive and protective effect, generally 50 70 grams of 80% fully complexed mancozeb wettable powder per mu each time, mixed with 30 kg of water, or 500 to do pure 600 times liquid uniform spray.

2. Use of mixture: Generally, when crop diseases are serious, mancozeb can be mixed with other agents in a fully complexed state to achieve the effect of prevention, protection and eradication. Commonly used mixed preparations are 72% manganese zinc frost urea, 69% manganese zinc enoylmorpholine, oxazole manganese zinc, 64% manganese zinc cream, 60% fluorobacterium manganese zinc, 32% manganese zinc pants sen mycloconazole and other mixtures, which can be selected according to different diseases for spray control.