As one of the important methoxyacrylate fungicidesPyraclostrobinSince it was put on the market, the target pathogen is more, strong immunity, improving crop stress resistance, promoting crop growth, anti-aging, etc. Recognized by most users.
The reason why pyraclostrobin can attract the attention of the industry is fundamentally because of its excellent application performance. But no matter how good the medicine is, if it can't be used, it's a waste!
Overview diagram of pyraclostrobin
Pyraclostrobin, also known as azole oxystrobin, was first discovered by BASF in Germany in 1993, is a broad-spectrum fungicide of methoxyacrylate with pyrazole structure, registered and marketed in 2001, its mechanism of action is to inhibit mitochondrial respiration, resulting in cell death, so as to play the purpose of sterilization.
2. Mode of action
By inhibiting spore germination and mycelial growth, it has the effects of protection, eradication, infiltration, strong systemic and rainwater erosion resistance.
Pyraclostrobin can be rapidly absorbed by crops, and is mainly retained by the waxy layer of the leaves, and can also be transmitted to the back of the leaves through leaf osmosis, so as to have a control effect on the diseases on both sides of the leaves. The transmission and fumigation of pyraclostrobin to the top and base of the leaf are very small, but the conduction activity in plants is strong.
3. Product advantages
1. Sterilization broad-spectrum. It shows good activity against almost all fungal diseases, such as powdery mildew, leaf blight, red spot, net spot, scab disease of wheat, rice blast, sheath blight, downy mildew, blight, etc., which is more important for the prevention and control of blight.
2. Combination of prevention and control. It has the effect of protection and protection, and has good penetration and systemic effect, and can be used in the form of stem and leaf spraying, water surface application, seed treatment, etc.
3. It has good mixability, can be compounded with a variety of agents, and has a good compound effect with difenoconazole, dysenlian, enoylmorphine, etc., and also has a synergistic effect.
4. Plant health care, stress resistance and yield increase. Increases the activity of nitrate (nitrification) reductase, thereby increasing nitrogen uptake during the rapid growth phase of crops. At the same time, it can reduce the biosynthesis of ethylene, thereby delaying crop senescence.
5. It has a high degree of selectivity. It is safe for crops, people, livestock and beneficial organisms, and basically has no pollution to the environment.
4. Prevention and control objects and characteristics
1. Bactericidal broad-spectrum: Bactericidal broad-spectrum pyraclostrobin can be used for wheat, peanuts, rice, vegetables, fruit trees, tobacco, tea trees, ornamental plants, lawns and other crops. Control leaf blight, rust, powdery mildew, downy mildew, blight, anthracnose, scab, brown spot, blight and other diseases caused by ascomycetes, basidiomycetes, semi-known fungi and oomycetes. It has a good control effect on cucumber powdery mildew, downy mildew, banana scab, leaf spot, grape downy mildew, anthracnose, powdery mildew, early blight, late blight, powdery mildew and leaf blight of tomato and potato.
5. Compound agent of pyraclostrobin.
Pyraclostrobin is also very complex, can be compounded with dozens of pesticides, here are recommended two common compounds:
Recipe 1:40% benzopyrazole ester suspension, the formula has a protective, ** leaf osmotic conduction effect. It has good fast-acting effect and long lasting effect. It can fully replace conventional products such as mancozeb, chlorothalonil, methyl manganese zinc, frost urea manganese zinc. It can effectively control early blight, anthracnose, powdery mildew, downy mildew, vine blight, blight, sclerotinia sclerotinia disease, scab, gum disease, scab disease, brown spot, leaf spot, stem blight and other diseases. 15-20 ml of 40% benzopyrazole ester suspension per mu, evenly sprayed with water, can quickly prevent and control the spread of the above diseases.
Recipe 2:30% oxime · tebuconazole suspension 25-pyraclostrobin suspensionThe formula has the characteristics of increasing yield, improving quality, curing diseases and resisting stress. After the mixture of the two, it can effectively control anthracnose, rust, brown spot, leaf spot, powdery mildew and other diseases. It can make the crop leaves wide and thick, the stalks thick, the plants robust, and improve the quality.
Recipe three: 25% pyraclostrobin suspension fluconazole suspension, which acts on the electron transport in the mitochondria of pathogens and the synthesis of ergosterol, respectively, enhances the bactericidal virulence and delays the resistance of pathogens. It has the effect of prevention, protection and protection, and has a good control effect on high and low fungi at low concentrations. It can increase the chlorophyll content of leaves, improve photosynthesis, and enhance crop stress resistance and quality. It is safe, sterilizes quickly, and has a long-lasting effect, which can be used to prevent and control banana black spot disease.
6. Precautions for mixing pyraclostrobin:
1. Do not mix pyraclostrobin with alkaline fungicides, emulsifiable concentrate and silicone. When mixed with other agents, attention should be paid to the concentration and the test should be done.
2. Attention should be paid to the mixing of pyraclostrobin and foliar fertilizer, first dissolve the foliar fertilizer, and then pour pyraclostrobin. In general, pyraclostrobin plus potassium dihydrogen phosphate and trace elements will have a very good effect.
3. Pyraclostrobin itself has high permeability, and it is not recommended to add silicone.
4. Pyraclostrobin can be mixed with brassin, but it is best to mix it after dilution separately.
5. Pyraclostrobin is not recommended to be mixed with strong oxidizing pesticides, such as potassium permanganate, hydrogen peroxide, peracetic acid, chlorobromide and other pesticides.