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Weeding composition containing pyribenzoxim and fenoxaprop-p-ethyl

A technology for oxaflufen-ethyl and pyriflufen-ethyl, which is applied in the field of herbicidal compositions, can solve the problems such as the mixing of pyriflufen-ethyl and oxaflufen-ethyl and no reports of application, and reduce the amount of pesticides used. , expand the control spectrum, improve the effect of the control effect

Active Publication Date: 2014-04-30
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There is no report on the mixing and application of saflufemazin and fenoxaprop-ethyl

Method used

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  • Weeding composition containing pyribenzoxim and fenoxaprop-p-ethyl
  • Weeding composition containing pyribenzoxim and fenoxaprop-p-ethyl
  • Weeding composition containing pyribenzoxim and fenoxaprop-p-ethyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment one: Indoor toxicity test

[0019] Test material: Qianjinzi (seeds collected and preserved in the field). Barnyardgrass (seeds collected in the field and preserved).

[0020] Test equipment: controllable light incubator; POTTER precision laboratory spray tower; electronic balance (sensitivity 0.1mg); micropipette gun, etc.

[0021] Test method: first weigh a certain mass of 96% saflufenacil technical product and 95% fenoxaprop-ethyl technical drug, add acetone to fully dissolve it, dilute it with 0.1% Tween 80 aqueous solution, and prepare single-dose mother solutions respectively , set a series of ratios according to the purpose of mixing, and set 5 to 7 concentration gradients for each ratio. Select representative sensitive weed seeds according to the single-dose herbicidal spectrum for future use. After the treatment with the selected number is treated with soil, it is placed in a light incubator for 10 days at room temperature, and the control effect (...

Embodiment 2

[0030] Example 2: 12% pyrimidin saflufenacil · fenoxaprop-p-ethyl wettable powder

[0031]

[0032]

[0033] The above formula is coarsely pulverized in proportion, put into a mixer and mixed evenly, and then jet pulverized to obtain 12% saflufenacil-fenoxaprop-p-ethyl wettable powder.

[0034] This embodiment is used to control annual weeds in rice transplanting fields, 12% saflufenacil-oxaprop-p-ethyl wettable powder dosage 45g.a.i. / ha soil treatment, 10 days after the drug control effect is 96.7%; 3 %Pyrimidine saflufenacil wettable powder dosage 45g.a.i. / ha soil treatment, the control effect was 77.5% 10 days after application; 15% fenoxaprop-ethyl EC dosage 15g.a.i. / ha soil treatment, 10 days after application 73.1 %. The synergistic effect of saflufemazin and fenoxaprop-p-ethyl is obvious after compounding, and the efficacy of 12% samflufezin·fenoxaprop-p-ethyl WP in controlling annual weeds in transplanted rice fields is significantly better than that of 3% pyrim...

Embodiment 3

[0035] Example 3: 18% saflufenacil · fenoxaprop-ethyl suspension concentrate

[0036]

[0037] The above formula is pre-crushed according to the proportion, and then added to a sand mill for grinding, and then prepared after high-shear mixing to prepare 18% saflufenacil-oxaprop-p-ethyl suspension concentrate.

[0038] This embodiment is used to prevent and eliminate annual weeds in rice transplanting fields, and the amount of 18% saflufenacil-fenoxaprop-ethyl suspension concentrate is 45g.a.i. / ha soil treatment, and the control effect is 96.9% in 10 days after the medicine; 5% The amount of saflufenacil wettable powder was 45g.a.i. / ha for soil treatment, and the control effect was 73.9% 10 days after the application; the amount of 15% fenoxaprop-ethyl EC was 15g.a.i. / ha for soil treatment, and the control effect was 78.3% for 10 days after application . The compounding of saflufemazin and fenoxafe-prop-acid has obvious synergistic effect, and the control effect of 18% safl...

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Abstract

The invention discloses a weeding composition containing pyribenzoxim and fenoxaprop-p-ethyl, which comprises a common auxiliary, pyribenzoxim and fenoxaprop-p-ethyl, wherein the mass part ratio of pyribenzoxim to fenoxaprop-p-ethyl is (10:1)-(1:10). An obvious synergistic effect is realized by compounding pyribenzoxim and fenoxaprop-p-ethyl, the dosage of active ingredients of the compound drug is obviously reduced in comparison with that of individual use, and the weeding composition is suitable for preventing and removing annual grassy weeds in a paddy field.

Description

technical field [0001] The herbicidal composition of the present invention uses saflufenacil and fenoxaprop-p-ethyl as active ingredients, and is suitable for controlling annual gramineous weeds in paddy fields. Background technique [0002] Chemical weeding is one of the main means of controlling weeds in agriculture. In recent years, due to the large-scale single use of some herbicide varieties, many weeds have developed resistance. At the same time, when weeds occur, the grass phase is complex, not only annual and perennial weeds are mixed, herbs, vines and shrubs are mixed, but also the emergence of weeds is uneven, and the seeds, young and old weeds are staggered, so the herbicide species alone When used, all will show some defects and limitations. [0003] Saflufenacil is an oxime ester compound, a broad-spectrum selective post-emergent herbicide. The mechanism of action is similar to that of sulfonylurea and imidazolone herbicides, both of which are acetolactate sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/76A01P13/00A01N43/54
Inventor 朱刚陈佛祥王礼文张志伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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