CN104012548A - Weed control composition containing pyraclonil and penoxsulam - Google Patents

Weed control composition containing pyraclonil and penoxsulam Download PDF

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Publication number
CN104012548A
CN104012548A CN201410190929.5A CN201410190929A CN104012548A CN 104012548 A CN104012548 A CN 104012548A CN 201410190929 A CN201410190929 A CN 201410190929A CN 104012548 A CN104012548 A CN 104012548A
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CN
China
Prior art keywords
pyraclonil
penoxsuam
weed control
penoxsulam
control composition
Prior art date
Application number
CN201410190929.5A
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Chinese (zh)
Inventor
张志伟
王礼文
朱刚
陈佛祥
吴泽伟
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广东中迅农科股份有限公司
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Priority to CN201410190929.5A priority Critical patent/CN104012548A/en
Publication of CN104012548A publication Critical patent/CN104012548A/en

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Abstract

The invention relates to a weed control composition containing pyraclonil and penoxsulam. Active ingredients of the weed control composition are pyraclonil and penoxsulam in a weight ratio of (10:1)-(1:10). The weed control composition has synergistic effects and obviously improves the weed control effects, expands the weed control spectrum, also reduces the usage amount of pesticides, reduces environmental pollution and delays the drug resistance of weeds compared with single agents which are independently used and is mainly applied to control of annual weeds in the paddy fields.

Description

A kind of Herbicidal combinations that contains pyraclonil and penoxsuam

Technical field

The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically a kind of taking pyraclonil and penoxsuam as the Herbicidal combinations of active ingredient binary built, be applied to the control of paddy field annual weed.

Background technology

Pyraclonil (pyraclonil): Shu Yu oxadiazole ketone weed killer herbicide, the inhibitor that the mechanism of action is proporphyrinogen oxidase.Can be used for rice field and prevent and kill off annual gramineous weed, sedge weed and broad leaved weed and some perennial weed.

Penoxsuam (penoxsulam): belong to triazolopyrimidine sulfonamides herbicide, the mechanism of action works for suppressing acetolactate synthestase in weeds body.Can be used for rice field and prevent and kill off barnyard grass, sedge weed and part broad leaved weed.

By the screening of different pesticide species compounded formulas, filter out rational formula, can effectively improve the actual control efficiency to disease pest and weed, expanding prevention spectrum, reduce dosage, reduce costs, alleviate the pollution to environment, delaying the drug-fast generation of disease pest and weed, is the important means of the upper disease pest and weed comprehensive regulation of agricultural.

The inventor conducts in-depth research the composite use of pyraclonil and penoxsuam, on the basis of a large amount of formula indoor screenings and field medicine effect test, find that pyraclonil and penoxsuam carry out composite, within the scope of certain compound proportion, paddy field annual weed is shown to obvious synergistic function, after further study, completed the present invention.

Not yet find at present the relevant report that pyraclonil and penoxsuam are composite.

Summary of the invention

The object of the present invention is to provide a kind ofly there is synergistic function, expand herbicide spectrum, use cost is low, control efficiency is good contains the Herbicidal composition for rice field that active ingredient is pyraclonil and penoxsuam.

Technical scheme: a kind of Herbicidal combinations that contains pyraclonil and penoxsuam, active ingredient is pyraclonil and penoxsuam, and the weight ratio of pyraclonil and penoxsuam is 10:1~1:10, and preferred weight ratio is 5:1~1:5; Pyraclonil and the penoxsuam gross weight percentage composition in composition is 0.1~85%, and all the other are in agricultural chemicals, to allow to use and acceptable auxiliary element.

Herbicidal combinations of the present invention can be according to well known to a person skilled in the art method, select suitable pesticidal preparations auxiliary element, can be processed into the application forms using in the applicable agricultural productions such as oil-suspending agent, granule, wetting powder, water dispersible granules, effervescent tablet, aqueous emulsion and film-spreading oil solution.

The auxiliary element using in Herbicidal combinations of the present invention comprises that solvent, emulsifier, wetting agent, disintegrant, stabilizing agent, dispersant, thickener, penetrating agent, pH adjusting agent, defoamer, antifreezing agent, carrier etc. are of value to the known substance of active ingredient stable and performance drug effect in preparation, be all various compositions conventional in pesticidal preparations or that permission is used, concrete composition and consumption require to determine by test according to formula.

The frequency of administration of the present composition and amount of application have small variations with crops, insect, weather condition variation, can be by using suitable dosage to reach the object of effective control.

Compared with prior art, the invention has the advantages that:

1, pyraclonil and penoxsuam compositely have synergistic function, have obviously improved the control efficiency to weeds than the independent use of single dose, have expanded herbicide spectrum.

2, two kinds of active ingredients of pyraclonil and penoxsuam are composite, and the mechanism of action is different, can delay the generation of herbicide resistance.

3, two kinds of active ingredients of pyraclonil and penoxsuam are composite, reduced agricultural chemicals usage amount, reduced use cost, alleviated the pollution to environment.

Embodiment

In order to understand better essence of the present invention, below in conjunction with embodiment, content of the present invention is described further, but can not be considered as limitation of the present invention.

(1) formulation embodiment.

In following each embodiment, active ingredient adopts the former medicine of 96% pyraclonil and the former medicine of 95% penoxsuam, and each component percentage composition is weight percentage.

Embodiment 1:70% pyraclonil penoxsuam water dispersible granules.

Pyraclonil 40%, penoxsuam 30%, lauryl sodium sulfate 5%, alkylphenol polyoxyethylene sulphate 8%, ammonium sulfate 2%, kaolin supplies 100%.Above-mentioned active ingredient, dispersant, wetting agent, disintegrant and solid carrier are mixed, pulverize with micro jet, through mediating, then add in fluidized bed prilling dryer and carry out granulation, dry, screening, can make 70% pyraclonil penoxsuam water dispersible granules.

Embodiment 2:50% pyraclonil penoxsuam wetting powder.

Pyraclonil 40%, penoxsuam 10%, sodium butylnaphthalenesulfonate 10%, alkylphenol polyoxyethylene 10%, diatomite supplies 100%.By above-mentioned, active ingredient, dispersant, wetting agent and solid carrier are mixed, after mechanical crushing, again through air-flow crushing, mix, can make 50% pyraclonil penoxsuam wetting powder.

Embodiment 3:20% pyraclonil penoxsuam oil-suspending agent.

Pyraclonil 15%, penoxsuam 5%, fatty acid ester sulphate 10%, neopelex 10%, polyvinyl acetate 2%, methyl oleate supplies 100%.By above-mentioned active ingredient and auxiliary agent through high speed shear disperse, in sand mill after sand milling, the high dispersive forming in non-water-medium, stable suspension system, can make 20% pyraclonil penoxsuam oil-suspending agent.

Embodiment 4:1% pyraclonil penoxsuam granule.

Pyraclonil 0.8%, penoxsuam 0.2%, sodium butylnaphthalenesulfonate 10%, alkylphenol polyoxyethylene 10%, polyvinyl alcohol 20%, clay complements to 100%.Above-mentioned active ingredient and auxiliary agent are mediated through mixing and water adding, use pinch-out granulator pinch out and be shaped, afterwards by fluid-bed drying, screening for particle, can make 1% pyraclonil penoxsuam granule.

Embodiment 5:30% pyraclonil penoxsuam effervescent tablet.

Pyraclonil 20%, penoxsuam 10%, lauryl sodium sulfate 8%, fatty alcohol-polyoxyethylene ether 5%, citric acid 15%, saleratus 15%, dextrin 2%, calcium stearate 5%, kaolin complements to 100%.Above-mentioned active ingredient and other auxiliary agent (except binding agent) are fully mixed, then be crushed to 0.3~5 μ m with low temperature micronizer, then add the binding agent of water furnishing pasty state, after stirring, use tablet press machine film-making, finally by drying, whole grain, detect, pack after, can make 30% pyraclonil penoxsuam effervescent tablet.

Embodiment 6:40% pyraclonil penoxsuam aqueous emulsion.

Pyraclonil 25%, penoxsuam 15%, polyoxyethylene aliphatic alcohol ether 20%, cyclohexanone 10%, propane diols 2%, silicone oil 0.5%, xanthans 0.2%, deionized water complements to 100%.First active ingredient, solvent, emulsifier are mixed, dissolve and become uniform oil phase.Then again part water and other auxiliary agents are mixed, dissolve and become uniform water.Then when reactor high speed stirs, water is joined to oil phase, slowly add water to and reach phase inversion point, carry out afterwards high speed shear, and add remaining water, shear about 30min, can make 40% pyraclonil penoxsuam aqueous emulsion.

Embodiment 7:25% pyraclonil penoxsuam film-spreading oil solution.

Pyraclonil 5%, penoxsuam 20%, nitrogen methyl pyrrolidone 5%, Lauryl Alcohol ester 10%, alkylphenol polyoxyethylene 5%, polyoxyethylene nonylphenol ether 10%, ethyl acetate complements to 100%.After active ingredient is fully dissolved with solvent, first add dispersant, finally add film forming agent, be fully uniformly mixed to transparently, can make 25% pyraclonil penoxsuam film-spreading oil solution.

(2) indoor biological activity determination embodiment.

Reagent agent: the former medicine of 96% pyraclonil and the former medicine of 95% penoxsuam.

For trying target: Monochoria vaginalis (Monochoria vaginalis), barnyard grass (Echinochloa crusgalli), difformed galingale herb (Cyperus difformis).

Medicament configuration design: pyraclonil single dose is configured to 3,9,16g a.i./ha solution for standby; Penoxsuam single dose is configured to 2,8,15g a.i./ha solution for standby; Pyraclonil and penoxsuam mixture are configured to 3+2,3+8,3+15,9+2,9+8,9+15,16+2,16+8,16+15g a.i./ha solution for standby.

Test method: at the in-built quantitative soil of polypots of high 6cm, diameter 9cm, will be for 15~20 sowings of examination target weed seed in polypots, after covering the fine earth that 0.5~1cm is thick, be placed on cultivation in greenhouse, treat that weeds grew to for 1~2 leaf phase and carry out cauline leaf spraying processing, every alms bowl spraying liquid 1mL, every processing repeats 4 times, and establishes the not contrast that is treated to containing medicament.After processing, examination material is placed in the greenhouse in and cultivates, and the growing state of routine observation target weeds is estimated target be injured symptom and growth inhibition situation, and claimed acrial part fresh weight, the toxicity action with target fresh weight inhibiting rate evaluation medicament to target weeds after 20d.

Investigation method: test is processed and estimated target be injured symptom and growth inhibition situation after 20d, and claims acrial part fresh weight, calculates fresh weight inhibiting rate (%).

Synergy evaluation method: evaluate weed killer herbicide associated form (NY/T1155.7-2006) according to Gowing method, its formula is as follows:

E 0﹦X﹢Y–XY/100。

In formula, X is pyraclonil fresh weight inhibiting rate to target weeds when alone with certain dosage; Y is penoxsuam fresh weight inhibiting rate to target weeds when alone with certain dosage; E 0theoretical value to target weeds fresh weight inhibiting rate during for pyraclonil, two kinds of pharmacy mix of penoxsuam; Measured value to target weeds fresh weight inhibiting rate when E is pyraclonil, two kinds of pharmacy mix of penoxsuam.

Evaluation criterion: as E – E 0when > 10%, be expressed as synergistic effect; As ﹣ 10%≤E – E 0≤ 10% time, show as summation action; As E – E 0when < ﹣ 10%, show as antagonism.

Table 1, the Toxicity Determination of each chemicals treatment to Monochoria vaginalis.

Table 2, the Toxicity Determination of each chemicals treatment to barnyard grass.

Table 3, the Toxicity Determination of each chemicals treatment to difformed galingale herb.

Toxicity Determination result by table 1, table 2 and table 3 can find out, pyraclonil and penoxsuam mixture are respectively processed the E-E to Monochoria vaginalis, barnyard grass and difformed galingale herb 0(%) value is all greater than 10%, illustrates that three is composite Monochoria vaginalis, barnyard grass and difformed galingale herb are all had to synergistic function.As can be seen here, pyraclonil and penoxsuam mixture have reasonability and feasibility.

(3) field efficacy checking embodiment.

Experimental field selecting Monochoria vaginalis, barnyard grass and difformed galingale herb that more paddy field occurs carries out.4 processing are established in test altogether, 3 repetitions are established in every processing, processing 1 is that 20% pyraclonil penoxsuam oil-suspending agent (15:5), processing 2 are that 10% pyraclonil wetting powder, processing 3 are that 25 grams per liter penoxsuams dispersible oil-suspending agent, process 4 for contrast (not weeding of not dispenser), within after medicine 30 days, adds up each processing number of weeds amount and calculates preventive effect.

Table 4, each chemicals treatment are prevented and kill off the field control effectiveness test result of transplanted rice field annual weed.

Field test results by table 4 can be found out, when within after medicine 30 days, 20% pyraclonil penoxsuam oil-suspending agent (15:5) usage amount is 17-22g.a.i./ha, all obviously to use separately higher than each single dose the preventive effect of paddy field barnyard grass, Monochoria vaginalis and difformed galingale herb, in pilot survey process, not find that 20% pyraclonil penoxsuam oil-suspending agent (15:5) produces poisoning to paddy rice simultaneously.As can be seen here, said composition is worth applying in agricultural production.

Claims (4)

1. a Herbicidal combinations that contains pyraclonil and penoxsuam, it is characterized in that: active ingredient is pyraclonil and penoxsuam, the weight ratio of pyraclonil and penoxsuam is 10:1~1:10, pyraclonil and the penoxsuam gross weight percentage composition in composition is 0.1~85%, and all the other are agricultural chemicals auxiliary element.
2. a kind of Herbicidal combinations that contains pyraclonil and penoxsuam according to claim 1, is characterized in that: the weight ratio of pyraclonil and penoxsuam is 5:1~1:5.
3. a kind of Herbicidal combinations that contains pyraclonil and penoxsuam according to claim 1, is characterized in that: its formulation is the one in oil-suspending agent, granule, wetting powder, water dispersible granules, effervescent tablet, aqueous emulsion and film-spreading oil solution.
4. a kind of Herbicidal combinations that contains pyraclonil and penoxsuam according to claim 1, is applicable to prevent and kill off paddy field annual weed.
CN201410190929.5A 2014-05-07 2014-05-07 Weed control composition containing pyraclonil and penoxsulam CN104012548A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104255750A (en) * 2014-09-10 2015-01-07 广东中迅农科股份有限公司 Herbicide composition containing pyraclonil and pretilachlor
CN104542723A (en) * 2015-02-09 2015-04-29 江苏瑞东农药有限公司 Wettable powder compounded from penoxsulam and biological herbicide and preparation method of wettable powder
WO2016066088A1 (en) * 2014-10-30 2016-05-06 Fmc (China) Investment Co., Ltd. Herbicidal composition containing penoxsulam
CN106982848A (en) * 2017-05-27 2017-07-28 北京科发伟业农药技术中心 A kind of Herbicidal combinations containing pyraclonil and three azole amides

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101310599A (en) * 2008-05-26 2008-11-26 北京燕化永乐农药有限公司 Rice direct seeding field mixed herbicide
JP2009084245A (en) * 2007-10-02 2009-04-23 Ishihara Sangyo Kaisha Ltd Herbicide composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009084245A (en) * 2007-10-02 2009-04-23 Ishihara Sangyo Kaisha Ltd Herbicide composition
CN101310599A (en) * 2008-05-26 2008-11-26 北京燕化永乐农药有限公司 Rice direct seeding field mixed herbicide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104255750A (en) * 2014-09-10 2015-01-07 广东中迅农科股份有限公司 Herbicide composition containing pyraclonil and pretilachlor
WO2016066088A1 (en) * 2014-10-30 2016-05-06 Fmc (China) Investment Co., Ltd. Herbicidal composition containing penoxsulam
CN105613523A (en) * 2014-10-30 2016-06-01 苏州富美实植物保护剂有限公司 Penoxsulam weeding composition
CN104542723A (en) * 2015-02-09 2015-04-29 江苏瑞东农药有限公司 Wettable powder compounded from penoxsulam and biological herbicide and preparation method of wettable powder
CN106982848A (en) * 2017-05-27 2017-07-28 北京科发伟业农药技术中心 A kind of Herbicidal combinations containing pyraclonil and three azole amides

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Application publication date: 20140903