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Dithiopyr-containing weeding composition and application thereof

A herbicidal composition and a technology for dithiopyr, applied in the field of pesticides, can solve problems such as drug resistance and poor actual control effect, and achieve the effects of expanding the weed control spectrum, low drug cost and good herbicidal effect.

Active Publication Date: 2020-11-10
青岛恒宁生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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

Method used

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  • Dithiopyr-containing weeding composition and application thereof
  • Dithiopyr-containing weeding composition and application thereof
  • Dithiopyr-containing weeding composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: 25% dithiopyr-cyhalofop-methyl dispersible oil suspension concentrate (1.5:1)

[0044] Formula: 15% dithiopyr, 10% cyhalofop-ester, 2% sodium polycarboxylate, 4% Nongru 1601#, 3% Tween-60#, 4% Nongru 2201, 1% sodium alkyl sulfate , 0.5% bentonite, 5% propylene glycol, 55% soybean oil;

[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.

Embodiment 2

[0046] Embodiment 2: 42% dithiopyr · bentazone dispersible oil suspension concentrate (1:6)

[0047] Formula: 6% dithiopyr, 36% bentazone, 2% sodium lignosulfonate, 5% Span-60#, 5% agricultural milk 700#, 4% sodium naphthalenesulfonate, 1% magnesium silicate Aluminum, 4% glycerin, 37% rapeseed oil;

[0048] Preparation method: with embodiment 1.

Embodiment 3

[0049] Example 3: 40% dithiopyr-bispyribac dispersible oil suspension concentrate (4:1)

[0050] Formula: 32% dithiopyr, 8% bispyribac, 2% sodium lignosulfonate, 4% agricultural milk 1601#, 3% Tween-60#, 4% agricultural milk 2201, 4% sodium naphthalenesulfonate , 1% magnesium aluminum silicate, 4% glycerin, 38% soybean oil;

[0051] Preparation method: with embodiment 1.

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Abstract

The invention belongs to the technical field of pesticide herbicides, and discloses a dithiopyr-containing weeding composition and an application thereof. The weeding composition comprises an active component A and an active component B, wherein the active component A is dithiopyr, and the active component B is selected from one of cyhalofop-butyl, bentazone and bispyribac-sodium. The mass ratio of the active component A to the active component B is 50: 1-1: 50. The weeding composition provided by the invention is reasonable in components, good in fast-acting property and long in lasting period, not only greatly improves the prevention and control effect of weeds in a paddy field and expands the weed control spectrum, but also effectively reduces the generation of drug resistance of the weeds, and reduces the drug cost and the drug use frequency.

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...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N39/04A01N43/88A01N43/54A01P13/00A01G22/22A01G13/00
CPCA01N43/40A01N39/04A01N43/88A01N43/54A01G22/22A01G13/00
Inventor 葛家成孙名帅熊风李健张成南
Owner 青岛恒宁生物科技有限公司
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