CN104222095B - Herbicidal combinations containing dimethenamid and pyribenzoxim - Google Patents
Herbicidal combinations containing dimethenamid and pyribenzoxim Download PDFInfo
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- CN104222095B CN104222095B CN201410505537.3A CN201410505537A CN104222095B CN 104222095 B CN104222095 B CN 104222095B CN 201410505537 A CN201410505537 A CN 201410505537A CN 104222095 B CN104222095 B CN 104222095B
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Abstract
The invention discloses a kind of Herbicidal combinations containing dimethenamid and pyribenzoxim, belong to herbicide field, be easily caused insect and produce, in order to solve existing one-component herbicide, the problem that resistance, safety are low. Effective ingredient of the present invention is dimethenamid and pyribenzoxim, the weight ratio of dimethenamid and pyribenzoxim is 35:1～1:25, in this Herbicidal combinations, two kinds of effective ingredient have coordination potentiation, that can effectively reduce pesticide makes consumption, reduce drug cost, reduce the pollution to environment; Can delaying the generation of herbicide resistance, the drug action time is long; To crop safety, safe for human and animal and environment.
Description
Technical field
The present invention relates to herbicide field, specifically, relate to a kind of Herbicidal combinations containing dimethenamid and pyribenzoxim.
Background technology
Dimethenamid, chloroacetamide-based compounds, it is mainly used in the crops such as corn and soybean, Semen arachidis hypogaeae or Radix Betae, prevents and kill off multiple annual standing grain herbaceous weed such as barnyard grass, Herba Digitariae, tendon Bovis seu Bubali etc. and broad leaved weed such as Amaranthus retroflexus, Herba Bidentis Bipinnatae, Herba Capsellae, Herba monochoriae vaginalis, pineapple weed etc., to crop safety.
Pyribenzoxim, oxime ester compound, wide spectrum selective post-emergence herbicide, acetolactate synthestase (ALS) inhibitor. Oryza sativa L., common wheat, Korea lawn grass are had activity of weeding after selectivity ultra high efficiency bud, without activity of weeding before bud, is used for preventing and kill off the various grassy weeds such as barnyard grass, big fringe amur foxtail, Herba polygoni hydropiperis and assorted stroke of effect of broad-leaved is distinguished, to Oryza sativa L., common wheat safety.
Often there is defect in various degree in the herbicide kind containing single-activity component, as after continuous administration, weeds easily develop immunity to drugs, herbicide spectrum is narrow on farm weeding is prevented and treated, and application times is many can weighting ring environment pollution. Preventing and treating agriculturally being produced to the weeds of resistance, a kind of way is to release the new new component with existing kind no interactions resistance. But, the development cost of new effective ingredient is high, and the construction cycle is long, and does not forever all catch up with weeds and produce the speed of resistance. Other way such as crop structure adjustment, different pesticide rotations etc., in the process of practical operation, be difficult to really play obvious effect. Different cultivars composition carries out composite, is the preventing and treating modal method of resistant weed.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of drug resistance that can slow down to produce, have the Herbicidal combinations containing dimethenamid and pyribenzoxim of potentiation.
Herbicidal combinations containing dimethenamid and pyribenzoxim of the present invention, effective ingredient is the weight ratio of dimethenamid and pyribenzoxim, dimethenamid and pyribenzoxim is 35:1～1:25.
Preferably, the weight ratio of described effective ingredient dimethenamid and pyribenzoxim is 2～10:1, it is more preferable to thing 8～10:1.
Further, described effective ingredient dimethenamid and pyribenzoxim account for 1%～90% in described Herbicidal combinations.
Further, possibly together with carrier and auxiliary agent in described Herbicidal combinations. Described carrier is one or more in water, solvent or filler.
The mixture of the described solvent one or more compositions in DMF, Ketohexamethylene, toluene, dimethylbenzene, dimethyl sulfoxide, methanol, ethanol, trimethylcyclohexanone, NOP, N-Methyl pyrrolidone, propanol, butanol, ethylene glycol, diethylene glycol, ethylene glycol monomethyl ether, butyl ether, vegetable oil (such as soybean oil, Semen Maydis oil, Oleum Brassicae campestris, Oleum Terebinthinae, Semen Gossypii wet goods), mineral oil, ethyl acetate or acetonitrile etc.
The mixture of the described filler one or more compositions in Kaolin, kieselguhr, bentonite, attapulgite, white carbon, starch or precipitated calcium carbonate.
Further, described auxiliary agent at least includes a kind of surfactant, can also add other conven-tional adjuvants as required. Described auxiliary agent can be emulsifying agent, dispersant, wetting agent, penetrating agent, antifreezing agent, thickening agent, stabilizer, disintegrating agent or defoamer.
Surfactant can be nonionic or anionic, it is also possible to is two types compound use.
Described emulsifying agent is selected from OP series phosphate ester (thermally coupled distillation columns), 600# phosphate ester (phenyl phenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salt, triethanolamine salt, agriculture breast 400# (benzyl dimethyl phenol polyoxyethyl ether), Nongru-700 # (alkylphenol-formaldehyde resin polyoxyethyl ether), peaceful breast 36# (phenethyl fluosite polyoxyethyl ether), agriculture breast 1600# (phenethyl phenol polyoxyethanyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer, OP series (NPE), BY series (castor oil polyoxyethylene ether), agriculture breast 33# (alkylaryl polyoxyethylene poly-oxygen propylene aether), Span series (sorbitol anhydride monostearate), the mixture of one or more compositions in TWEEN Series (anhydrous sorbitol fat acid ester polyoxyethylene ether) or AEO series (fatty alcohol-polyoxyethylene ether).
The mixture of the described dispersant one or more compositions in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulfate, alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, aliphatic acid polyethenoxy ether or fatty acid glyceride polyoxyethylene ether.
The mixture of the described wetting agent one or more compositions in sodium lauryl sulphate, dodecylbenzene sodium sulfonate, Nekal BX, wetting and penetrating agent F, spaonin powder, Bombyx mori L. or Fructus Sapindi Mukouossi powder.
The mixture of the described penetrating agent one or more compositions in penetrating agent JFC (fatty alcohol-polyoxyethylene ether), penetrant t (diisooctyl maleate sulfonate), azone, organosilicon.
The mixture of the described thickening agent one or more compositions in gelatin, sodium carboxymethyl cellulose, hydroxyethyl cellulose, sodium polyacrylate, modified starch, xanthan gum, bentonite, silicon dioxide and Magnesiumaluminumsilicate.
The mixture of the described antifreezing agent one or more compositions in ethylene glycol, propylene glycol, glycerol or carbamide.
The mixture of the described defoamer one or more compositions in silicone oil, silicone compound, C10～C20 saturated fat acid compounds or C8～C10 aliphatic alcohols compound.
The mixture of the described disintegrating agent one or more compositions in bentonite, carbamide, ammonium sulfate, aluminum chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or sodium bicarbonate.
Described stabilizer is selected from epoxy soybean oil, epoxychloropropane, BHT, ethyl acetate, the mixture of one or more compositions of triphenyl phosphate.
Material described above is all well known to a person skilled in the art material, can be buied by market.
The dosage form of described Herbicidal combinations is cream, suspension emulsion, wettable powder, water dispersible granules, aqueous emulsion or microemulsion.
Compared with prior art, the invention has the beneficial effects as follows: in Herbicidal combinations, two kinds of effective ingredient have coordination potentiation, it is possible to effectively reduce the consumption that makes of pesticide, reduce drug cost, reduce the pollution to environment; Can delaying the generation of herbicide resistance, the drug action time is long; To crop safety, safe for human and animal and environment.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further explained.
Embodiment 1
A kind of Herbicidal combinations containing dimethenamid and pyribenzoxim, for cream, is made up of the component of following weight percentage: dimethenamid, 58%; Pyribenzoxim, 7%; Agriculture breast 500 selected by emulsifying agent#With agriculture breast 601#, consumption respectively 4% and 6%; Dimethylbenzene, surplus.
Preparation method: effective ingredient dimethenamid is added in carrier with pyribenzoxim herbicide by formula proportion, and add surfactant and other functional aid wherein, it is uniformly mixed in stirring mixing kettle. Stirring mixing kettle can be selected for enamel reaction still, rustless steel stirred tank etc.
Embodiment 2
A kind of Herbicidal combinations containing dimethenamid and pyribenzoxim, for suspension emulsion, is made up of the component of following weight percentage: dimethenamid, 40%; Pyribenzoxim, 20%; Emulsifying agent agriculture breast OP-10,2%; Dispersant polycarboxylate, 7%; Thickening agent selects xanthan gum, consumption respectively 0.1%; Antifreeze glycol, 5%; Defoamer silicone compound, 0.5%; Water, surplus.
Preparation method: by formula proportion, is first placed in reactor by effective ingredient pyribenzoxim herbicide, and add water mix homogeneously, prepares dense suspension by grinding technics; Again dimethenamid, surfactant and other functional aid being added reactor, mix homogeneously passes through high speed shear, is modulated the suspension emulsion of final system. Capital equipment is batching kettle, colloid mill or homogeneous mixer, sand mill.
Embodiment 3
A kind of Herbicidal combinations containing dimethenamid and pyribenzoxim, for wettable powder, is made up of the component of following weight percentage: dimethenamid, 30%; Pyribenzoxim, 20%; Wetting agent sodium lauryl sulphate, 4%; Dispersant calcium lignosulfonate, 7%; Filler white carbon, 10%, filler Kaolin, surplus.
Preparation method: by formula proportion, adds effective ingredient dimethenamid in carrier with pyribenzoxim herbicide, and adds surfactant and other functional aid, mixing wherein, remixes prepared wettable powder after comminution by gas stream. Capital equipment has mixer, jet mill.
Embodiment 4
A kind of Herbicidal combinations containing dimethenamid and pyribenzoxim, for water dispersible granules, is made up of the component of following weight percentage: dimethenamid, 45%;Pyribenzoxim, 5%; Wetting agent dodecylbenzene sodium sulfonate, 4%; Dispersant alkylnaphthalene sulfonate formaldehyde condensation products, 8%; Filler attapulgite, surplus.
Preparation method: by formula proportion, effective ingredient dimethenamid and pyribenzoxim herbicide are added in carrier, and add surfactant and other functional aid wherein, mixing, after comminution by gas stream, add 10～water of 25%, then prepare water dispersible granules product through kneading, pelletize, dry, screening; Maybe the powder body pulverized is sprayed water in boiling granulator, pelletize, dry, screening afterwards prepares product. Capital equipment has mixer, jet mill, kneader, Squeezinggranulator, drying room or fluid bed drying or boiling granulator, screening machine.
Embodiment 5
A kind of Herbicidal combinations containing dimethenamid and pyribenzoxim, for aqueous emulsion, is made up of the component of following weight percentage: dimethenamid, 40%; Pyribenzoxim, 5%; Emulsifying agent selects 601PT and agriculture breast BY-125, consumption respectively 2% and 6%; Dimethylbenzene, 10%; Ethylene glycol selected by antifreeze, and 5%; Water, surplus.
Preparation method: effective ingredient dimethenamid is added in carrier with pyribenzoxim herbicide agent by formula proportion, and addition surfactant makes it be dissolved into homogeneous oil phase wherein, and other functional aid and water are mixed into homogeneous aqueous phase. Under high-speed shearing machine stirs, aqueous phase is joined in oil phase, finely disseminated aqueous emulsion can be formed.
Embodiment 6
A kind of Herbicidal combinations containing dimethenamid and pyribenzoxim, for microemulsion, is made up of the component of following weight percentage: dimethenamid, 40%; Pyribenzoxim, 10%; Emulsifying agent selects KT and agriculture breast 601#, consumption respectively 6% and 8%; Dimethylbenzene, 15%; Water, surplus.
Preparation method: effective ingredient dimethenamid and pyribenzoxim herbicide are added in carrier by formula proportion, and add surfactant wherein, in stirring mixing kettle, stirring makes it is homogeneous oil phase, more slowly stirring lower addition water stirs transparent state. Stirring mixing kettle can be selected for enamel reaction still, rustless steel stirred tank etc.
Embodiment 7
It is the indoor biometrics test of Herbicidal combinations of the present invention below.
For examination weeds: Herba Digitariae (Digitariasanguinalis (L.) Scop), barnyard grass (Echinochloacrusgalli (L.) Beauv), Herba Acalyphae (AcalyphahispidaBurm), Herba Portulacae (PortulacaoleraceaL.)
The cultivation of experimental condition and examination material: carry out the cultivation of test examination material, temperature 25～35 DEG C in illumination cultivation room. Quantitative Herba Digitariae, barnyard grass, Herba Acalyphae, Herba Portulacae seed are sowed in the plastic tub of diameter 8cm, earthing 1～2mm, puts into equipped with, in the enamel tray of water, allowing water penetrate into gradually, waits water to transfer to illumination cultivation room after being seeped into soil table stand-by.
Reagent agent: 90% dimethenamid crude oil, Yin Bang Chemical Co., Ltd. of Shangyu city provides; The 90% former medicine of pyribenzoxim, Changzhou Rui Ping Chemical Co., Ltd. provides.
Reagent agent drug solution preparing: weigh quantitative dimethenamid, the former medicine of pyribenzoxim with electronic balance respectively, adds after emulsifier special dissolves, adds the acetone of 2 times to being completely dissolved, be diluted to required concentration with the tween 80 aqueous solution of 0.1%.
Test dose designs: every medicament single dose is according to as follows to the respective featured configuration concentration testing weeds: dimethenamid sets 200,400,800,1600g.a.i./ha (Herba Digitariae, barnyard grass);240,480,960,1920g.a.i./ha (Herba Acalyphae, Herba Portulacae), pyribenzoxim sets 10,20,40,80g.a.i./ha (Herba Digitariae, barnyard grass); 15,30,60,120g.a.i./ha (Herba Acalyphae, Herba Portulacae); Each medicament variable concentrations uses to obtain different blended dosing between two with. Concrete EXPERIMENTAL DESIGN dosage is in Table 1 and table 2.
Table 1 reagent agent prevents and kill off Herba Digitariae, barnyard grass test dose design (consumption g.a.i./ha)
Table 2 reagent agent prevents and kill off Herba Acalyphae, Herba Portulacae test dose design (consumption g.a.i./ha)
Application method: being tested in Herba Digitariae, barnyard grass, Herba Acalyphae 2 leaf 1 heart stage, Herba Portulacae 4 leaf phase stem and leaf even spraying processes. Accurately calculating by accurate spray tower actual spray powder is long-pending and prepares required medicinal liquid, being evenly arranged on rotating spraying platform by pending plastic tub annular, spraying processes. Atomisation pressure 2kg/m2, Conic nozzle flow 100ml/min, repeat for 4 times.
Weedy rices method, time and number of times: the damage symptoms (such as growth inhibited, chlorosis, deformity etc.) of itemized record weeds after dispenser, weigh each process weeds aerial parts fresh weight, calculate fresh weight preventive effect after 20 days.
Drug effect computational methods: result of the test Gowing method evaluation synergy type after mixed. Gowing law theory preventive effect calculating formula is:
The anti-valid value of the actual measurement (%) of X, Y respectively two single doses in formula, E is the anti-valid value of the actual measurement (%) that different ratio is mixed, E0 is theoretical anti-valid value (%), when E-E0 is summation action between-10～10 time, as E-E0>10 time be potentiation, be antagonism as E-E0<-10.
Result of the test is in Table 3 and table 4.
Table 3 dimethenamid preventive effect result to Herba Digitariae, barnyard grass mixed with pyribenzoxim
Table 4 dimethenamid preventive effect result to Herba Portulacae, Herba Acalyphae mixed with pyribenzoxim
Process of the test finds, after dimethenamid and pyribenzoxim are used, the leaves such as Herba Portulacae is had the symptoms such as reddening, late-acting weak effect. By table 3,4 it can be seen that dimethenamid mixed with pyribenzoxim after to the difference of Herba Digitariae, barnyard grass actual measurement preventive effect and theoretical preventive effect between 0～6, between-10～10, illustrates that both use with and Herba Digitariae, barnyard grass is belonged to summation action; As can be seen from Table 3, after dimethenamid is mixed with pyribenzoxim to the difference of Herba Portulacae, Herba Acalyphae actual measurement preventive effect and theoretical preventive effect between 0～11.1, illustrates that both use with Herba Portulacae, Acalypha in summation action, and have potentiation.
Embodiment 8
Underneath with embodiment 1,4, comparative example Semen Maydis weeds in field is carried out drug effect preventing and treating, mainly prevent and kill off object be grassy weed Herba Digitariae, Herba Setariae Viridis, barnyard grass, Herba Eleusines Indicae, Rhizoma Cyperi etc., broad leaved weed Herba Portulacae, Amaranthus retroflexus, Herba chenopodii etc. Comparative example is: 720g/l dimethenamid cream, 10% pyribenzoxim aqueous emulsion, and clear water comparison (CK).
This field test sets embodiment medicament, comparative example medicament and using clear water as comparison (CK) totally 9 process, each process repeat 4 times, totally 36 process community, see that weeds 2～4 Leaf-Age-Period carries out stem and leaf spraying process in corn field. Preventive effect is investigated, and after dispenser, 20d, 40d investigate 2 times. Often process random 4 point samplings in community, every some 0.25m2, point Variety investigation each treatment region remaining weeds strain number, weeds are extracted and weigh overground part fresh weight by second time investigation. Calculate strain preventive effect and fresh weight preventive effect. Result is in Table 5, table 6 and table 7.
After table 5 medicine, 20d is to corn field weed preventive effect (%)
After table 6 medicine, 40d is to corn field weed preventive effect (%)
After table 7 embodiment 1 and embodiment 4 medicine, 40d is to corn field weed fresh weight preventive effect (%)
The result of the test of table 5,6,7 shows, after medicine after 20 days and medicine 40 days, corn field is mixed with the strain preventive effects such as mare Tang, Herba Setariae Viridis, barnyard grass, Herba Eleusines Indicae, Rhizoma Cyperi, Herba Portulacae, Amaranthus retroflexus, Herba chenopodii by embodiment 1 and embodiment 4 and namely fresh weight preventive effect reaches desirable prevention effect, is above comparative example; Embodiment 1 uses effective ingredient more than 60 grams, embodiment 4 per hectare to use effective ingredient more than 65 grams in per hectare, and preventive effect is all more than 90%. This inventive composition just reaches desirable prevention effect under low dosage, reduces medicament and makes consumption, reduces production cost, decrease environmental pollution. It addition, field observation finds during test, this inventive composition on corn growth without impact, crop safety is high.
Claims (8)
1. the Herbicidal combinations containing dimethenamid and pyribenzoxim, it is characterised in that the weight ratio that effective ingredient is dimethenamid and pyribenzoxim, dimethenamid and pyribenzoxim of described Herbicidal combinations is 8:1.
2. the Herbicidal combinations containing dimethenamid and pyribenzoxim according to claim 1, it is characterised in that described effective ingredient dimethenamid and pyribenzoxim account for 1%～90% in described Herbicidal combinations.
3. the Herbicidal combinations containing dimethenamid and pyribenzoxim according to claim 2, it is characterised in that possibly together with carrier and auxiliary agent in described Herbicidal combinations.
4. the Herbicidal combinations containing dimethenamid and pyribenzoxim according to claim 3, it is characterised in that described carrier is selected from one or more in solvent or filler.
5. the Herbicidal combinations containing dimethenamid and pyribenzoxim according to claim 3, it is characterised in that described carrier is selected from water.
6. the Herbicidal combinations containing dimethenamid and pyribenzoxim according to claim 3, it is characterised in that described auxiliary agent includes surfactant or other conven-tional adjuvants.
7. the Herbicidal combinations containing dimethenamid and pyribenzoxim according to claim 3, it is characterised in that described auxiliary agent includes emulsifying agent, dispersant, wetting agent, penetrating agent, antifreezing agent, thickening agent, stabilizer, disintegrating agent or defoamer.
8. the Herbicidal combinations containing dimethenamid and pyribenzoxim according to claim 1～7 any claim, it is characterized in that, the dosage form of described Herbicidal combinations is cream, suspension emulsion, wettable powder, water dispersible granules, aqueous emulsion or microemulsion.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001024633A2 (en) * | 1999-10-06 | 2001-04-12 | Bayer Aktiengesellschaft | Selective herbicides based on pyrimidine-derivatives |
| WO2003000058A1 (en) * | 2001-06-21 | 2003-01-03 | Bayer Cropscience Ag | Selective herbicides based on pyrimidine derivatives |
| CN103096715A (en) * | 2010-08-18 | 2013-05-08 | 孟山都技术公司 | Early applications of encapsulated acetamides for reduced injury in crops |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001024633A2 (en) * | 1999-10-06 | 2001-04-12 | Bayer Aktiengesellschaft | Selective herbicides based on pyrimidine-derivatives |
| WO2003000058A1 (en) * | 2001-06-21 | 2003-01-03 | Bayer Cropscience Ag | Selective herbicides based on pyrimidine derivatives |
| CN103096715A (en) * | 2010-08-18 | 2013-05-08 | 孟山都技术公司 | Early applications of encapsulated acetamides for reduced injury in crops |
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