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Suspending agent containing pyroxasulfone and cloransulam-methyl as well as preparation method and application of suspending agent

A technology of clofentrazone and metazafen, which is applied in the direction of herbicides and algicides, botany equipment and methods, applications, etc., and can solve the phytotoxicity that is easy to occur in subsequent crops and the chlorotic damage of soybean leaves , Weeds are easy to produce drug resistance and other problems, to achieve the effects of sustainable development of the environment, delaying weed resistance, and good foaming

Active Publication Date: 2022-06-24
SHANDONG WEIFANG RAINBOW CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Herbicide varieties containing a single active component often have different degrees of defects in the control of agricultural weeds, such as: narrow herbicidal spectrum, weeds are prone to resistance after continuous use, and frequent use will aggravate environmental pollution, and there are studies It shows that after three years of continuous single application of metazaclofen, durum ryegrass can develop resistance to metazazone and even cross-resistance to other pesticides. After the application of meclofenac, soybean leaves are prone to chlorosis Symptoms of phytotoxicity and easy to cause phytotoxicity to subsequent crops

Method used

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  • Suspending agent containing pyroxasulfone and cloransulam-methyl as well as preparation method and application of suspending agent
  • Suspending agent containing pyroxasulfone and cloransulam-methyl as well as preparation method and application of suspending agent
  • Suspending agent containing pyroxasulfone and cloransulam-methyl as well as preparation method and application of suspending agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Indoor virulence assay

[0034] According to Sun Yunpei's co-toxicity coefficient method to evaluate the combined action mode of the two herbicides, the co-toxicity coefficient (CTC) of the two herbicides after compounding in a certain proportion is determined. CTC>120 is a synergistic effect.

[0035] Indoor virulence tests are as follows:

[0036]The test chemicals were all provided by Shandong Weifang Runfeng Chemical Co., Ltd.

[0037] Experimental design: After the effective inhibitory concentration range of each drug was determined in the pre-test, each drug was treated with a series of concentrations according to the content of active ingredients, and a clear water control was set. The test specimens were cultured in an artificial climate chamber at a temperature of 25°C to 35°C. Sow a certain amount of abalone seeds in a plastic pot with a diameter of 9cm, cover with soil 1-2mm, put it into an enamel tray filled with water, let the water gradually ...

Embodiment 2

[0050] Example 2: 24% sulfofenazone·chlorfenapyr sulfentrazone suspending agent

[0051] The formula is: active pharmaceutical ingredients sulfofenazone 16%, chlorfenapyr 8%, dispersants TRST 2%, Agrilan788 2%, wetting agents PE6400 1%, LBC-2 2%, thickener xanthan gum 0.8%, defoamer silicone oil 0.1%, antifreeze glycerol 3%, preservative cassone 0.12%, deionized water to 100%.

[0052] Preparation method: the dispersing agent, wetting agent, defoaming agent, preservative and water in the above formula are subjected to high-speed shearing, mixing uniformly, then adding sulfofenazone and sulfentrazone, and carrying out in a sand mill. Sand grinding, the particle size of the material needs to be checked frequently during the sand grinding, and the particle size is 2-4 μm; the thickener is added to the antifreeze and mixed evenly, and then the mixture of the thickener and antifreeze is added to the sanding In the finished liquid mixture, the mixture is uniformly mixed by high-spe...

Embodiment 3

[0053] Example 3: 20% sulfofenazone·chlorfenapyr sulfentrazone suspending agent

[0054] The formula is: the active ingredients of sulfofenazone 15%, sulfentrazone 5%, dispersants TRST3%, Agrilan788 2%, wetting agents PE6400 1%, LBC-2 2%, thickener xanthan gum 0.8% %, defoamer silicone oil 0.2%, antifreeze glycerol 4%, preservative cassone 0.1%, deionized water to make up to 100%.

[0055] The preparation method is the same as that of Example 2.

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Abstract

The invention relates to the technical field of pesticide preparations, and discloses a pyroxasulfone and cloransulam-methyl suspending agent as well as a preparation method and application thereof. The suspending agent provided by the invention comprises the weeding composition of pyroxasulfone and cloransulam-methyl as active ingredients, and an auxiliary agent acceptable in pesticide, the mass ratio of cloransulam-methyl to pyroxasulfone is (1: 1)-(1: 10). The effective active ingredients of the suspending agent comprise pyroxasulfone and cloransulam-methyl, the pyroxasulfone and the cloransulam-methyl do not conflict with each other when being mixed with each other, a very good synergistic interaction effect is shown in a specific range, and generation of drug resistance of weeds can be delayed; meanwhile, the better physical and chemical properties of the suspending agent can be obtained by optimizing the auxiliaries, particularly, the better suspension rate can be kept after heat storage, and the suspending agent can be applied to weeds such as crab grass, barnyard grass, dayflower, piemarker, cirsium setosum and sonchus brachyotus in soybean fields and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of pesticide preparations, in particular to a suspending agent of metazafen-sulfone and cloxazone-sulam and its preparation method and application. Background technique [0002] Pyroxasulfone, chemical name: 3-[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-ylmethylsulfonyl]-4 ,5-dihydro-5,5-dimethyl-1,2-isoxazole is a new type of isoxazole herbicide, which is widely used in crops, mainly for corn, cotton, peanut, wheat, sunflower and other crops , can effectively control grass weeds such as Setaria, crabgrass and barnyardgrass, as well as broad-leaved weeds such as amaranth, Datura, nightshade and Abutilon. [0003] Cloransulam-methyl, chemical name: 3-chloro-2-(5-ethoxy-7-fluoro[1,2,4]triazol[1,5-c]pyrimidine-2- Sulfonyl) methyl aminobenzoate belongs to sulfonamide herbicides and is mainly used for stem and leaf spraying in soybean fields to control broadleaf weeds. [0004] Herbicide varieti...

Claims

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Application Information

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IPC IPC(8): A01N43/80A01N43/90A01N25/04A01P13/00
CPCA01N43/80A01N43/90A01N25/04
Inventor 袁良国李志清王建伟张小兵赵保臣
Owner SHANDONG WEIFANG RAINBOW CHEM
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