Pesticide composition containing propanil and cyhalofop-butyl and application of pesticide composition

Abstract

The invention discloses pesticide composition containing propanil and cyhalofop-butyl and an application of the pesticide composition. The active ingredients of the pesticide composition comprise propanil and cyhalofop-butyl in the mass ratio of (50-350): (2-20). The pesticide composition has a remarkable synergistic effect in the matching range, the use amount of pesticide is reduced, the number of use times of the pesticide is reduced, the pesticide cost is reduced, and an adverse effect of the pesticide on ecological environment is reduced; the weeding spectrum is enlarged, the problem about various weeds is solved through one-time pesticide application, and the defect and the limitation during single-agent use are made up; the service life of the pesticide composition is prolonged; the pesticide composition has important significance on comprehensive treatment of weed resistance; and the pesticide composition rapidly exerts the pesticide effect, the lasting period is long, the use cost is low, and the pesticide composition can be used for controlling rice grassy weeds, broad leaved weeds and sedge family weeds.

Description

technical field

[0001] The invention belongs to the technical field of pesticides, and in particular relates to a pesticide composition containing propanil and cyhalofop for controlling gramineous weeds, broad-leaved weeds and sedge weeds in paddy fields. Background technique

[0002] According to statistics, the world's grain production loses 14% every year due to diseases, insects, and weeds, and the loss caused by weeds is about 11%. Weed damage is a key factor restricting crop production. The use of chemical herbicides is one of the important symbols of modern agriculture. In recent years, sales of herbicides have increased year by year, accounting for an increasing proportion of pesticide sales, and the application area has expanded year by year. Rice is the crop with the largest consumption, the largest planting area, the largest total output and the highest per unit yield in China, and it has an important position in the world. However, the serious occurrence of wee...

Examples

Embodiment 1

[0025] Example 1: 17% propanil·cyhalofop-ethyl oil suspension concentrate

[0026] The components of the pesticide composition containing propanil and cyhalofop-methyl are: 15% propanil, 2% cyhalofop-methyl, 5% phenethylphenol polyoxyethylene ether, 8% sodium lignosulfonate, cyclic Oxygenated soybean oil 5%, organic bentonite 5%, methyl oleate to 100%.

[0027] After propanil and filler are adsorbed and mixed, other above-mentioned materials (except organic bentonite) are added to the reactor mixer together, stirred evenly, and the materials are injected into a multi-stage sand mill for grinding, and the fineness of the ground materials is 98% After passing through 1-5um, the material is discharged, and the material is put into a high-shear emulsification kettle together with the pre-dissolved organic bentonite. After emulsification, 47% propanil·cyhalofop-methyl oil suspension concentrate can be made.

Embodiment 2

[0028] Example 2: 44% propanil·cyhalofop-ethyl suspension concentrate

[0029] The components of the pesticide composition containing propanil and cyhalofop-methyl are: 40% propanil, 4% cyhalofop-methyl, 5% phenethylphenol polyoxyethylene ether, 8% sodium lignosulfonate, ethyl Glycol 5%, magnesium aluminum silicate 2%, defoamer 0.5%, preservative 0.1%, xanthan gum 0.1%, water to 100%.

[0030] After propanil and filler are adsorbed and mixed, other above-mentioned materials (except xanthan gum) are added to the reactor mixer together, stirred evenly, and the materials are injected into a multi-stage sand mill for grinding. The fineness of the ground materials is 98 % After passing through 1-5um, the material is discharged, and the material is put into a high-shear emulsification kettle together with the pre-dissolved xanthan gum. After emulsification, it can be made into a 57% propanil·cyhalofop-ester suspension concentrate.

Embodiment 3

[0031] Example 3: 29% propanil·cyhalofop-methyl wettable powder

[0032] The components of the pesticide composition containing propanil and cyhalofop-methyl are: 25% propanil, 4% cyhalofop-methyl, 3% sodium butylnaphthalene sulfonate, 5% calcium lignosulfonate, white carbon black 5%, kaolin to 100%.

[0033] Adsorptively mix propanil and filler, put it into the conical mixer together with other above-mentioned materials and mix evenly, and then pulverize through the jet mill, and then mix the pulverized material with the conical mixer, the fineness of the mixed material is 98% The 67% propanil·cyhalofop-methyl wettable powder was obtained by passing through a 325-mesh standard sieve.

technical field

[0001] The invention belongs to the technical field of pesticides, and in particular relates to a pesticide composition containing propanil and cyhalofop for controlling gramineous weeds, broad-leaved weeds and sedge weeds in paddy fields. Background technique

[0002] According to statistics, the world's grain production loses 14% every year due to diseases, insects, and weeds, and the loss caused by weeds is about 11%. Weed damage is a key factor restricting crop production. The use of chemical herbicides is one of the important symbols of modern agriculture. In recent years, sales of herbicides have increased year by year, accounting for an increasing proportion of pesticide sales, and the application area has expanded year by year. Rice is the crop with the largest consumption, the largest planting area, the largest total output and the highest per unit yield in China, and it has an important position in the world. However, the serious occurrence of wee...

Examples

Embodiment 1

[0025] Example 1: 17% propanil·cyhalofop-ethyl oil suspension concentrate

[0026] The components of the pesticide composition containing propanil and cyhalofop-methyl are: 15% propanil, 2% cyhalofop-methyl, 5% phenethylphenol polyoxyethylene ether, 8% sodium lignosulfonate, cyclic Oxygenated soybean oil 5%, organic bentonite 5%, methyl oleate to 100%.

[0027] After propanil and filler are adsorbed and mixed, other above-mentioned materials (except organic bentonite) are added to the reactor mixer together, stirred evenly, and the materials are injected into a multi-stage sand mill for grinding, and the fineness of the ground materials is 98% After passing through 1-5um, the material is discharged, and the material is put into a high-shear emulsification kettle together with the pre-dissolved organic bentonite. After emulsification, 47% propanil·cyhalofop-methyl oil suspension concentrate can be made.

Embodiment 2

[0028] Example 2: 44% propanil·cyhalofop-ethyl suspension concentrate

[0029] The components of the pesticide composition containing propanil and cyhalofop-methyl are: 40% propanil, 4% cyhalofop-methyl, 5% phenethylphenol polyoxyethylene ether, 8% sodium lignosulfonate, ethyl Glycol 5%, magnesium aluminum silicate 2%, defoamer 0.5%, preservative 0.1%, xanthan gum 0.1%, water to 100%.

[0030] After propanil and filler are adsorbed and mixed, other above-mentioned materials (except xanthan gum) are added to the reactor mixer together, stirred evenly, and the materials are injected into a multi-stage sand mill for grinding. The fineness of the ground materials is 98 % After passing through 1-5um, the material is discharged, and the material is put into a high-shear emulsification kettle together with the pre-dissolved xanthan gum. After emulsification, it can be made into a 57% propanil·cyhalofop-ester suspension concentrate.

Embodiment 3

[0031] Example 3: 29% propanil·cyhalofop-methyl wettable powder

[0032] The components of the pesticide composition containing propanil and cyhalofop-methyl are: 25% propanil, 4% cyhalofop-methyl, 3% sodium butylnaphthalene sulfonate, 5% calcium lignosulfonate, white carbon black 5%, kaolin to 100%.

[0033] Adsorptively mix propanil and filler, put it into the conical mixer together with other above-mentioned materials and mix evenly, and then pulverize through the jet mill, and then mix the pulverized material with the conical mixer, the fineness of the mixed material is 98% The 67% propanil·cyhalofop-methyl wettable powder was obtained by passing through a 325-mesh standard sieve.

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