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Weeding composition comprising metamifop and pyribenzoxim and application of weeding composition

A technology containing fenpyramid and saflufenacil, which is applied in application, herbicides, algicides, biocides, etc., can solve the problem of unsatisfactory weed control in paddy fields and the tendency of weeds to develop drug resistance , Reduce the amount of pesticides and other issues, to overcome the occurrence of weed resistance, obvious synergistic or additive effects, and reduce the dosage of pesticides

Inactive Publication Date: 2017-09-08
JIANGSU FENGSHAN GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems in the prior art that the actual control effect on paddy field weeds is unsatisfactory when the single agent of pesticide is used alone, and the weeds are prone to develop drug resistance, the object of the present invention is to provide a kind of pesticide containing fenpyramid and pyrimidine A herbicidal composition of ether and its application. In the herbicidal composition, fenoxazone and saflufenacil produced a synergistic or additive effect, and the duration of effect was long. Compared with a single agent, the herbicidal spectrum was expanded. Improve the control effect, reduce the amount of medication, reduce the cost of medication, and help delay the development of weed resistance

Method used

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  • Weeding composition comprising metamifop and pyribenzoxim and application of weeding composition
  • Weeding composition comprising metamifop and pyribenzoxim and application of weeding composition
  • Weeding composition comprising metamifop and pyribenzoxim and application of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 Determination of indoor biological activity after compounding of fenpyramid and saflufenacil

[0040]In this example, after compounding different ratios of fenpyramid and saflufenacil, the control effects on grass weeds and broad-leaved weeds were tested.

[0041] 1.1 Test target

[0042] Barnyardgrass Echinochloa crus-galli (L.) P.Beauv. (seeds collected and preserved in the field);

[0043] Channa saus Eclipta prostrata (L.) L. (seeds collected and preserved in the field).

[0044] 1.2 Drugs to be tested

[0045] 96% fenpyramid technical (commercially available, referred to as A), 95% pyrimidine saflufenacil technical (commercially available, referred to as B)

[0046] 1.3 Instruments and equipment

[0047] Controllable sunlight greenhouse; electronic balance (sensitivity 0.1mg); a set of precision pipette guns 100-1000μL, 20-100μL, 1-20μL; Potter spray tower; several beakers, measuring cylinders and plastic pots.

[0048] 1.4 Experimental design

[00...

Embodiment 2

[0082] Example 2 and its preparation

[0083] Cream recipe:

[0084] Methafen 10%, saflufenacil 5%, calcium dodecylbenzenesulfonate 7%, octylphenol polyoxyethylene ether OP-10 6.5%, castor oil polyoxyethylene ether BY-125 6.5% , 20% cyclohexanone, 20% soybean oil, No. 150 mineral spirits make up to 100%.

[0085] Add the above formula into the reaction kettle in proportion, stir and mix evenly, settle and filter to obtain 15% oxafluzamide·saflufenacil emulsifiable concentrate.

Embodiment 3

[0086] Example 3 Microemulsion of 8% oxafluzamide·saflufenacil and its preparation

[0087] Microemulsion formulation:

[0088] Mesifenamide 5%, saflufenacil 3%, xylene 10%, cyclohexanone 25%, isopropanol 5%, calcium dodecylbenzenesulfonate 7.5%, triphenylethylphenol polyoxygen Propylene polyoxyethylene block polymer 12%, special phenylethylphenol formaldehyde resin polyoxyethylene ether 5.5%, silicone defoamer 0.03%, water to 100%.

[0089] The preparation method of described microemulsion is as follows:

[0090] (1) The original drug of fenpyramid, the original drug of saflufenacil, xylene, cyclohexanone, isopropanol, calcium dodecylbenzenesulfonate, triphenylethylphenol polyoxypropylene polyoxyethylene The block polymer and the special phenylethylphenol formaldehyde resin polyoxyethylene ether are fully stirred and mixed to form a transparent and uniform oil phase;

[0091] (2) Fully stir and mix the silicone defoamer and water to form a water phase;

[0092] (3) Under ...

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Abstract

The invention relates to a weeding composition comprising metamifop and pyribenzoxim and application of the weeding composition. The weeding composition adopts metamifop and pyribenzoxim as active ingredients, wherein a weight ratio of the metamifop to the pyribenzoxim is (50 to 1): (1 to 50), and the weeding composition can be prepared into any dosage form with allowable additives in pesticide preparations to be used for preventing and removing weeds in paddy rice fields. In the weeding composition of the invention, after the metamifop and pyribenzoxim are collectively used, the pesticide effect is improved, the lasting period is long, a weed control spectrum is enlarged, the pesticide consumption is reduced, the synergistic or addition effect are apparent, the average plant control effect and the weed control effect on fresh weight in 15 days and 30 days after the pesticide is applied are respectively 87 percent or higher and are respectively higher than the control effect when the two reference pesticides are independently utilized, the development of the weed pesticide fastness is postponed, the pesticide application cost is reduced, and the adverse effect on the ecological environment is also reduced.

Description

technical field [0001] The invention belongs to the field of herbicide compositions, and in particular relates to a herbicide composition containing fenpyramid and saflufenacil and an application thereof, which is suitable for controlling weeds in paddy fields. Background technique [0002] Weeds in rice fields compete with rice for glory, water and fertilizer, and are also intermediate hosts and habitats for many diseases and insect pests, resulting in reduced rice yield and quality. Weeds in paddy fields have complex phases, and many types of weeds such as Gramineae, Broadleaf and Cyperaceae are mixed. The use of a single herbicide species cannot completely solve the problem of weed damage in paddy fields, and all of them will show some defects and limitation. [0003] Mefenpyramid is an aryloxyphenoxypropionate herbicide developed by Korea Chemical Technology Research Institute. Its mechanism of action is to inhibit the activity of acetyl-CoA carboxylase, thereby inhibi...

Claims

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Application Information

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IPC IPC(8): A01N43/76A01N43/54A01P13/00
CPCA01N43/76A01N43/54A01N2300/00
Inventor 余建波单培源王晋阳李俊卿
Owner JIANGSU FENGSHAN GROUP
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