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Synergistic weeding composition for preventing and controlling herbicide-resistant weeds in wheat fields

A herbicidal composition and drug resistance technology, applied in the field of pesticides, to achieve the effect of significant synergistic control effect, good safety, and convenient use

Active Publication Date: 2016-06-29
TAIAN ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the long-term use of a single species of herbicides has enhanced the resistance of weeds in wheat fields, such as broad-leaved weeds Artemisia sorenzo, shepherd's purse, Maijiagong, etc. oatmeal etc.

Method used

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  • Synergistic weeding composition for preventing and controlling herbicide-resistant weeds in wheat fields
  • Synergistic weeding composition for preventing and controlling herbicide-resistant weeds in wheat fields
  • Synergistic weeding composition for preventing and controlling herbicide-resistant weeds in wheat fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 suspending agent

[0031] Formula composition: 1.5% bifentrazone + 4.5% metazazone sulfone + 5% sodium lignosulfonate + 2% pull open powder + 0.2% xanthan gum + 5% glycerol + water to make up.

[0032] The above-mentioned suspending agent processing process: Put all the materials into the mixing tank, stir and mix, pass through the colloid mill, then enter the third-stage sand mill of the sand mill, and finally cut evenly in the shearing machine. After passing the test, transfer to the storage tank filling.

Embodiment 2

[0033] Embodiment 2 dispersible oil suspension concentrate

[0034] The formula is composed of: 2.5% bifentrazone + 7.5% metazazone sulfone + 5% phenethylphenol polyoxyethylene ether phosphate triethanolamine salt + 5% fatty acid polyoxyethylene ester + 8% castor oil polyoxyethylene ether + 2% organic bentonite + methyl oleate topping up.

[0035] The processing process of the above-mentioned dispersible oil-suspending agent: put all the materials into the mixing tank, pass through the colloid mill after stirring and mixing, and then enter the third-stage sand mill of the sand mill, and finally cut evenly in the shearing machine. After passing the test, transfer To tank filling.

Embodiment 3

[0036] Embodiment 3 wettable powder

[0037] The formula is composed of: 15% bifentrazone + 45% metazazone sulfone + 10% sodium lignosulfonate + 5% pull-off powder + 5% precipitated white carbon black + diatomaceous earth supplement.

[0038] The above-mentioned wettable powder processing process: put the original drug, additives, white carbon black, kaolin, etc. into a mechanical pulverizer, and then pass through the jet pulverizer, and take a sample for use after passing the test.

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Abstract

The invention belongs to the technical field of pesticides and particularly relates to a synergistic weeding composition for preventing and controlling herbicide-resistant weeds in wheat fields. The synergistic weeding composition includes an active component and an active component B, wherein the active component A is bis carfentrazone, the active ingredient B is an isoxazole compound fenoxasulfone. The composition is sprayed to stems and leaves before a four-leaf stage after weeds emerge from the ground, can effectively prevent and control descurainia sophia, shepherd's purse, lithospermum arvense and other broad-leaf weeds and alopecurus aequalis Sobol, Italian ryegrass, bromegrass and other grassy weeds, is remarkable in synergistic effect and also has the remarkable preventing and killing effect on the weeds resistant to ALS inhibitor type herbicides and ACCase inhibitor type herbicides after being compounded. The synergistic weeding composition is lower in compounding cost, simple to apply, remarkable in synergistic preventing and killing effect and convenient to popularize and has important economic and social values.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a synergistic herbicidal composition for preventing and controlling drug-resistant weeds in wheat fields containing bifentrazone and pyrazafen. Background technique [0002] The use of herbicides to control weeds is the most economical and effective means of weed control in farmland. However, long-term continuous high-dose use of a single species or a single mode of action of chemical herbicides is likely to cause problems such as weed resistance and resistance evolution. Reasonable compounding or mixing of herbicide compounds has the advantages of expanding the spectrum of weeds, improving the control effect, delaying the occurrence and development of weed resistance and drug resistance, and is one of the most effective methods to solve the above problems. [0003] However, the long-term use of a single species of herbicides has enhanced the resistance of weeds i...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N43/80A01P13/00
CPCA01N43/80A01N43/90A01N2300/00
Inventor 路兴涛张佳王金信金涛张宏军连磊张田田周超孙竹波孔繁华
Owner TAIAN ACAD OF AGRI SCI
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