A broad-spectrum fungicide that can prevent and treat more than 100 diseases—pyraclostrobin

Pyraclostrobin is a methoxyacrylate fungicide with a pyrazole structure developed by BASF in Germany in 1993. It has been used on more than 100 crops. It has a wide bactericidal spectrum, many target pathogens, and immunity. It has strong sex, improves crop stress resistance, promotes crop growth, resists aging and other functions.

1. Mechanism of action.
Pyraclostrobin is a mitochondrial respiration inhibitor. It inhibits mitochondrial respiration by preventing electron transfer between cytochrome b and C1, making the mitochondria unable to produce and provide the energy (ATP) required for normal cell metabolism, ultimately causing cell death. die.
Pyraclostrobin has a strong ability to inhibit the germination of pathogenic spores, has significant antibacterial activity against almost all plant pathogenic fungi (Ascomycetes, Basidiomycetes, Oomycetes and Deuteromycetes), and has protection and It has therapeutic effects and has good penetration and systemic effects. It can be used by spraying on stems and leaves, applying pesticides on water surfaces, and treating seeds. Also highly selective. It is safe for crops, people, livestock and beneficial organisms, and basically has no pollution to the environment. Finally, its conductive activity in plants is strong, which can improve crop physiological functions and enhance crop stress resistance.

2. Prevention and control objects and characteristics
（1）Broad-spectrum sterilization: Broad-spectrum sterilization pyraclostrobin can be used on various crops such as wheat, peanuts, rice, vegetables, fruit trees, tobacco, tea trees, ornamental plants, lawns, etc. Prevent and control leaf blight, rust, powdery mildew, downy mildew, blight, anthracnose, scab, brown spot, damping off and other diseases caused by Ascomycetes, Basidiomycetes, Deuteromycetes and Oomycetes fungi. It is effective against 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 tomatoes and potatoes. Prevention and control effect.
（2）Combination of prevention and treatment: It has protective and therapeutic effects, and has good penetration and systemic effects. It can be used by stem and leaf spray, water surface application, seed treatment, etc.
（3）Plant health care: In addition to its direct effect on pathogenic bacteria, pyraclostrobin, which is resistant to stress and increases production, can also induce physiological changes in many crops, especially cereals. For example, it can enhance the activity of nitrate (nitrification) reductase, thereby improving crop growth. Nitrogen uptake during rapid growth stages. At the same time, it can reduce ethylene biosynthesis, thereby delaying crop senescence.When crops are attacked by viruses, it can accelerate the formation of resistance proteins, which has the same effect as the synthesis of resistance proteins by the crop’s own salicylic acid synthesis. Even when plants are not diseased, pyraclostrobin can increase crop yields by controlling secondary diseases and mitigating stress from abiotic factors.