A kind of herbicidal composition containing thiopyr and its application
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A herbicidal composition and a technology for dithiopyr, which is applied in the field of pesticides, can solve problems such as drug resistance and poor actual control effect, and achieve the effects of expanding weed control spectrum, delaying resistance, and good herbicidal effect.
Active Publication Date: 2022-03-29
青岛恒宁生物科技有限公司
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[0011] The purpose of the present invention is to solve the problem that herbicides produce drug resistance to paddy field weeds and the actual control effect is poor in the prior art, and provide a high-efficiency, low toxicity, good quick-acting, long-lasting effect, which is beneficial to paddy field Herbicidal composition for integrated weed management
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[0045] Preparation method: according to the proportion of the formula, put the active ingredients dithiopyr, cyhalofop-ethyl, surfactant and other functional additives in the reaction kettle in sequence, add oil and mix evenly, high-speed shearing, wet sanding, Finally, homogeneously filter to obtain the suspension concentrate product.
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Abstract
The patent of the invention belongs to the technical field of pesticide herbicides, and discloses a herbicidal composition containing dithiopyr and its application. The herbicidal composition contains active ingredient A and active ingredient B, wherein active ingredient A is dithiopyr , the active ingredient B is selected from one of cyhalofop-methyl, bentazone and bispyribac. The mass ratio of the active ingredient A to the active ingredient B is 50:1˜1:50. The herbicidal composition provided by the invention has reasonable components, good quick-acting properties and long-lasting effect, which not only greatly improves the control effect of weeds in paddy fields, expands the herbicidal spectrum, but also effectively reduces the occurrence of weed resistance and reduces Medication cost and frequency of medication.
Description
technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a herbicidal composition containing thiopyr and its application. Background technique [0002] Dithiopyr is a pyridine carboxylic acid herbicide. The herbicide is mainly absorbed through stems, leaves and roots, blocking the formation of spindle microtubules, resulting in shortening of microtubules, failure to form normal spindle filaments, making cells unable to undergo mitosis, and weeds stop growing and die. It is a mitosis inhibitor. . Dithiopyr has the advantages of low dosage, high efficiency, and long-lasting effect. It is widely used for weeding rice, and can control annual weeds such as barnyardgrass, bermudagrass, heteromorphous sedge, and knotweed. Dithiopyr chemical name: S,S'-dimethyl-2-difluoromethyl-4-isobutyl-6-trifluoromethylpyridine-3,5-dithiocarbamate, CAS registration number: 997886 -45-8, chemical structural formula: [0003] [0004] Cyhalofop-bu...
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