Characteristics
Polyoxin is a metabolite produced by Streptomyces aureus and is a broad-spectrum antibiotic fungicide. Has a good systemic conduction. The mechanism of action is to interfere with the biosynthesis of the chitin of the cell wall of the pathogen, so that the cell wall of the cell cannot be biosynthesized and the pathogen is killed. After the germ tube and the hyphae are in contact with the agent, the local enlargement, rupture, and overflow of the cell contents, but not normal development, leading to death. Therefore, it also has the effect of inhibiting the sporulation of pathogens and the enlargement of lesions. Because polymycin is a high-efficiency, low-toxic, environmentally-friendly, safe pesticide, it is widely used in the control of important diseases such as food crops, fruits and vegetables. Polymycins are a class of structurally similar multi-component antibiotics containing a mixture of 14 to 14 different homologues, which are peptide pyrimidine nucleotide antibiotics. The main components are different in their roles. Therefore, there are two main types of use in agriculture: one is mainly composed of a and b components, and is mainly used for controlling apple spotted leaf disease, ring disease, pear black spot, and grapes. More than 10 crop diseases such as gray mold, strawberry, cucumber, melon powdery mildew, downy mildew, ginseng black spot and tobacco brown spot disease. The other category is mainly composed of d, e and f components, mainly due to the prevention and control of rice sheath blight. effect Its mechanism of action is to interfere with the biosynthesis of chitin in the fungal cell wall, so that the lesion can not expand. Control object It can control flowers, fruit black spot, gray mold, brown spot and so on.