Synergistic weeding composition and method for controlling undesirable plant growth

A herbicidal composition and plant growth technology, which is applied in the field of synergistic herbicidal compositions, can solve the problems of crop damage, limited herbicidal spectrum, and poor activity, and achieve delayed weed resistance, high herbicidal activity, and long-lasting effect long effect

Inactive Publication Date: 2017-01-04
JIANGSU ROTAM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, herbicides are limited by the safety of crops, and the herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in crop fields. On the other hand, the amount of herbicide is too large or the application is uneven. Also prone to unacceptable toxicity to current or subsequent crops
Pyroclofensulfone is a highly effective pre-emergence herbicide but has poor post-emergence activity
In addition, pyroxasulfone is c

Method used

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  • Synergistic weeding composition and method for controlling undesirable plant growth
  • Synergistic weeding composition and method for controlling undesirable plant growth
  • Synergistic weeding composition and method for controlling undesirable plant growth

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0109] Example 1: 60% pyrocrazin + 6% mefenacet

[0110] Paroque sulfone 60%

[0111] Mefenacet 6%

[0112] Triphenyl ethyl phenol polyoxyethylene ether 5%

[0113] Sodium p-methoxy fatty acid amide benzene sulfonate 5%

[0114] Bentonite 1%

[0115] Glycerol 5%

[0116] Urea 5%

[0117] Water supplement to 100%

[0118] The active ingredients, dispersant, wetting agent and water are mixed uniformly according to the proportion of the formula, and after grinding and / or high-speed shearing, 60% pyrocidazole + 6% mefenacet Suspending agent.

Example Embodiment

[0119] Example 2 2% Pyrocidazole + 10% Mefenacet wettable powder

[0120] Paroque sulfone 2%

[0121] Mefenacet 10%

[0122] Polyoxyethylene glyceryl monofatty acid ester 10%

[0123] Sodium laureth carboxylate 5%

[0124] White carbon black 10%

[0125] Kaolin fills up to 100%

[0126] The active ingredients, various additives and fillers are mixed according to the proportion of the formula, and then pulverized by an ultrafine grinder to obtain 2% Pyrocidazole + 10% Mefenacet wettable powder.

Example Embodiment

[0127] Example 3 2% Pyrocrazol+50% Mefenacet wettable powder

[0128] Paroque sulfone 2%

[0129] Mefenacet 50%

[0130] Fatty alcohol polyoxyethylene ether 1%

[0131] Alkylphenol polyoxyethylene ether formaldehyde condensate 2%

[0132] White carbon black makes up to 100%

[0133] The active ingredients, various additives and fillers are mixed according to the proportions of the formula, and then pulverized by an ultrafine grinder to obtain 2% Pyrocidazole + 50% Mefenacet wettable powder.

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PUM

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Abstract

The invention provides a synergistic weeding composition which contains active components pyroxasulfone and mefenacet. Weight ratio of pyroxasulfone to mefenacet is 50: 1-1: 100. The synergistic weeding composition is used for controlling undesirable plant growth. The invention also provides a method for controlling undesirable plant growth. According to the method, the active components pyroxasulfone and mefenacet of the synergistic weeding composition are applied together or separately applied to undesirable plants or growth places of the undesirable plants. The invention also provides a method for reducing or preventing damage of pyroxasulfone to plants, seeds or other reproduction parts of useful crops treated with pyroxasulfone.

Description

technical field [0001] The present invention relates to a synergistic herbicidal composition and a method for controlling unwanted vegetation. Background technique [0002] The crop yield is reduced due to the damage of weeds, so it is necessary to apply a large amount of herbicides every year for weed control to recover the loss of crop yield. In recent years, the harm of weeds to crops has become more and more serious, and due to the abuse of herbicides, weeds have become more and more resistant to pesticides, resulting in a decrease in the weed control effect year by year. [0003] The most commonly used method for increasing the herbicidal activity and broadening the herbicidal spectrum of existing herbicides is to mix two or more herbicidally active substances with different herbicidal activities. If two or more herbicidally active substances are mixed, it may show superior herbicidal efficacy than individual herbicide applications. When the potency of a mixture of tw...

Claims

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Application Information

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IPC IPC(8): A01N43/80A01P13/00A01N43/78
Inventor 罗昌炎詹姆斯·T·布里斯托
Owner JIANGSU ROTAM CHEM
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