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Problems solved by technology
However, no relevant research or report on the compounding of pentothiastrobin and epoxiconazole has been found
[0006] In addition, the existing pesticide compounding patents mainly only consider the synergistic effect brought about by the compounding. However, although the synergistic effect is the more obvious the better, it is not the only factor to be considered when using pesticides. In particular, it needs to be considered Yes, the toxicity and environmental pollution of the compounded composition
For example, although some active ingredients are not a big problem when they are used separately, after they are used in combination, the intermediate products produced during their degradation process may undergo adverse chemical reactions and cause environmental pollution problems
Method used
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[0032] The preparation method of the suspending agent is as follows: add each raw material into the sand mill cylinder according to the formula, and after stirring evenly, pre-disperse it with a high shear machine, then transfer it to a sand mill for sand milling, add sanding medium zirconia beads, and start sanding Grinding, so that the average particle size of the material is below 3 μm, stop sanding after 5 hours, filter, remove the zirconia beads, and obtain.
[0033] The technical indicators of the obtained suspension concentrate are as follows: Suspension rate ≥ 90.0%; pH value 6.0-8.0; sieve analysis (passing through a 75 μm sieve) ≥ 98%; persistent foaming (after 1 min) ≤ 25ml; pouring property: residue after pouring ≤4.0%, r...
[0036] The preparation method of the suspension is the same as in Example 1, and the technical indicators of the obtained suspension are as follows: suspension rate ≥ 91.5%; pH value 6.0-8.0; sieve analysis (through a 75 μm sieve) ≥ 98%; persistent foaming (after 1min) ≤ 25ml; Pourability: residue after pouring ≤3.0%, residue after washing ≤0.5%; suspension rate ≥87% after hot storage at 54±2°C for 30 days; suspension rate ≥87% after cold storage at 0±2°C for 30 days.
[0038] The raw material formula is shown in Table 1, wherein the thickener is xanthan gum and methylcellulose (weight ratio 0.2:2), the antifreeze is isopropanol, and the preservative is sodiumsorbitol.
[0039] The preparation method of the suspension is the same as in Example 1, and the technical indicators of the obtained suspension are as follows: suspension rate ≥ 93.5%; pH value 6.0-8.0; sieve analysis (through a 75 μm sieve) ≥ 98%; persistent foaming (after 1min) ≤ 25ml; Pourability: residue after pouring ≤3.0%, residue after washing ≤0.5%; suspension rate ≥90% after hot storage at 54±2°C for 30 days; suspension rate ≥90% after cold storage at 0±2°C for 30 days.
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Abstract
The invention relates to a sterilization composition containing benzothiostrobin and epoxiconazole. The sterilization composition containing benzothiostrobin and epoxiconazole comprises active ingredients and auxiliary components of pesticide preparations, wherein the active ingredients are composed of benzothiostrobin and epoxiconazole in weigh ratio of 1: (0.1-16). The sterilization composition containing benzothiostrobin and epoxiconazole has a very remarkable synergistic effect by compounding benzothiostrobin and epoxiconazole according to a special proportion; and lots of experiments prove that after benzothiostrobin and epoxiconazole are compounded, the toxicity to mammals is not increased. In addition, the applicant further finds that the compounding effect of benzothiostrobin and epoxiconazole can be further promoted by adopting a specific dispersion wetting agent with the help of the sterilization composition, so that benzothiostrobin and epoxiconazole give play to the synergistic effect to the maximum extent.
Description
technical field [0001] The invention belongs to the field of pesticides, in particular to a fungicidal composition containing benzathystrobin and epoxiconazole. Background technique [0002] Methoxyacrylate series fungicides are a kind of high-efficiency, broad-spectrum and environment-friendly fungicides developed by Syngenta in the 1980s. Penthiostrobin has received great attention and attention due to its wide range of bactericidal and herbicidal activities. [0003] Benzotystrobin has broad-spectrum fungicidal activity, not only has good control effect on cucumber downy mildew and powdery mildew, but also has good control effect on scab, anthracnose, gray mold, corn small spot, rice smut, banana wilt , Banana brown margin gray spot have excellent inhibitory activity. However, the long-term use of solvent alone makes the disease resistant to pesticides. Combination of active ingredients with different action mechanisms is a general practice to delay the emergence of di...
Claims
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