The characteristics of isoproturon are mainly manifested in four aspects: First, the broad spectrum of killing. Isoproturon has good control effect on most grassy weeds in wheat fields such as Mai Auntie, Japanese Acacia, Hardgrass, and Wild Oats, especially for the control of malignant weeds of Poisonous weeds that have rapidly increased population in recent years. . Although the drug has been used for many years in production, it is not yet clear that weeds are resistant to isoproturon. The second is that the application period is wide. This medicine combines the effects of soil sealing treatment and stem and leaf treatment. It can be applied from wheat sowing to wheat seedling before jointing. The third is the short residue of the drug in the soil, which is safe for the crop after the crop. Fourth, the cost of medication is moderate, and farmers are easy to accept.
In order to realize the best control effect of Isoproturon, quasi-time, quasi-drug amount, sufficient amount of water, and uniform spray must be used during use. The best application period of isoproturon is the peak period of pre-winter weeds emergence. In spring, when weeds are used, weeds are too old. As a remedial measure, we can obtain higher control effect by using 62.5 grams of pure drug per acre before winter. Water use per mu is guaranteed to be over 30 kg.
Isoproturon has good safety for wheat, but it will reduce the antifreeze ability of wheat seedlings. Cold flow after treatment will easily produce “frozen phytotoxicity,†causing yellowing and growth inhibition of wheat seedlings. This type of situation occurs every year. The use of iprolong in wheat fields should avoid the first winter cold in the winter to ensure the safety of medication. After the first cold weather, wheat was subjected to low-temperature exercise and its anti-freezing ability was enhanced. The fields that had not been used in the previous period could be controlled by the “cold tail warmerâ€. This can ensure the weeding effect and the safety of the wheat seedlings. In addition, the interplanting of wheat in the paddy field is weak during the symbiosis with rice, and the drug resistance is poor. Therefore, the application of isoproturon should be carried out after rice is harvested after the rice is harvested. The plot must be drained and used after curing to prevent "wet damage."
Ivermectin is a new broad-spectrum, high-efficiency and low toxicity antibiotic antiparasitic drug. It has good repellent effect on internal and external parasites, especially nematodes and arthropods. But it has no effect on tapeworm, trematode and protozoa. The repellent effect of macrolide Antiparasitic Drugs on nematodes and arthropods lies in increasing the inhibitory transmitter of the insect body γ- The release of aminobutyric acid (GABA) and the opening of Cl ion channel controlled by glutamate enhance the permeability of nerve membrane to Cl, so as to block the transmission of nerve signals, and finally nerve paralysis, so that muscle cells lose their contractile ability, resulting in insect death.
Name: ivermectin
Alias: ivermecti; mk933; 22,23-dihydroavermectin B1; Uvemec; Ivosint; Ivermectin; EQVALEN; IVOMEC;
CARDOMECmk-0933; Mectizan; Vermic;
CAS No.: 70288-86-7
Molecular formula: c48h74o14
Molecular weight: 875.09300
Exact mass: 874.50800
PSA:170.06000
LogP:5.60140
Structural type:
Ivermectin
It is a derivative of avermectin. William C. Campbell, the discoverer of avermectin, and Yoshimura won the 2015 Nobel Prize in physiology and medicine for their outstanding achievements in fighting river blindness and elephantiasis.
Ivermectin is a semi synthetic macrolide multicomponent antibiotic produced by Streptomyces avermitilis fermentation. It mainly contains ivermectin B1 (BLA + B1B) not less than 93%, of which BLA shall not be less than 85%.
Ivermectin B1 is 22,23-dihydroavermectin B1.
Physicochemical properties
Properties: This product is white crystalline powder; Tasteless. This product is easily soluble in methanol, ethanol, acetone and ethyl acetate, almost insoluble in water, and has slight hygroscopicity. Ivermectin is a 16 membered macrolide antibiotic. Its basic structure is the macroester ring at the carbon 16 position and three main substituents, namely hexahydrophenylfurans at the C2 to C8 positions, disaccharide at the C13 position and ketone at the C17 to C18 positions.
Storage conditions: 2-8 º C
Injection 1% Ivermectin,Pharmaceutical Ivermectin Injection,3.15% Ivermectin Injection,2% Injectable Ivermectin
Shandong Unovet Pharmaceutical Co.,Ltd. , https://www.unovetcn.com