CN109792997A - A kind of Herbicidal combinations containing penoxsuam and pyribenzoxim - Google Patents

Abstract

The invention discloses a kind of Herbicidal combinations containing penoxsuam and pyribenzoxim, the Herbicidal combinations are made of active components A penoxsuam, active constituent B pyribenzoxim, active constituent C dichloro quinolinic acid, butachlor, one kind of pretilachlor and pesticide auxiliary element.Active components A, active constituent B, active constituent C weight ratio be 1-50:1-50:1-50.Application of the Herbicidal combinations of the present invention in agent for removing grass in paddy field has many advantages, such as wide spectrum, quick-acting, efficient, less toxic, safety and environmental protection.

Description

A kind of Herbicidal combinations containing penoxsuam and pyribenzoxim

Technical field

The invention belongs to technical field of pesticide, especially herbicide field, it is related to containing penoxsuam and pyrimidine oxime grass The ternary built agent of ether and the herbicidal composition are applied to the method for preventing and kill off paddy field weed.

Background technique

Pyribenzoxim is the pyrimidinylthiobenzoate herbicides of South Korea's LG chemical groups research and development, is novel oxime esters chemical combination Object is wide spectrum selective post-emergence herbicide.Mechanism of action is similar to sulfonylurea and imidazolinone herbicide, category acetyl cream Acid enzyme (ALS) inhibitor.There is activity of weeding after selective ultra high efficiency bud to rice, common wheat, Korea lawn grass, before no bud Activity of weeding, it is distinguished for preventing and kill off the various gramineae weeds such as barnyard grass, big fringe amur foxtail, polygonum flaccidum and broadleaf weeds effect, to water Rice, common wheat safety.Entitled O- (bis- (4,6- dimethoxypyridin -2- base oxygroup) the benzene first of 2,6- of chemistry of pyribenzoxim Acyl) oxime benzophenone.

Penoxsuam is the Miao Houyong herbicide developed by The Dow Agrosciences, LLC., it is triazolo pyrimidine sulphonyl Amine herbicide, by inhibiting acetolactate synthestase (ALS) to work.Penoxsuam is rice field broad-spectrum herbicide, can Effectively prevent and kill off barnyard grass (including to propanil, dichloro quinolinic acid and anti-acetyl-CoA carboxylase tool resistance barnyard grass), semen euphorbiae and Annual sedge weed, and it is effective to numerous broadleaf weeds, such as the raw different stamen flower in natural pond, Eclipta prostrata, sesbania, ring flower, Monochoria vaginalis. Lasting period is up to 30~60 days, and a drug can control full season Weed infestation substantially.Meanwhile it is phonetic also to prevent and kill off anti-benzyl in rice field The grand weeds of sulphur, and there is residual activity to many broad-leaveds and sedge weed and barnyard grass etc., to be killed in current herbicide for rice field Grass composes most wide kind.The chemical name of penoxsuam be 3- (2,2- difluoroethoxy)-N- (5,8- dimethoxy-[1,2, 4] triazol [1,5-C] pyrimidine -2-base)-α, α, α-fluoroform phenyl -2- sulfonamide.

Dichloro quinolinic acid is the special efficacy selective herbicide for preventing and kill off barnyard grass in paddy field, belongs to hormone-type quinoline carboxylic acid herbicide, Weeds poisoning symptom is similar to auxins effect, is mainly used for preventing and treating barnyard grass and working life is very long, the 1-7 leaf phase is effective；Water Rice safety is good.

Butachlor is selective preemergence herbicide.It is miscellaneous to be mainly used for the annual gramineae being broadcast live or transplanting rice field is prevented and kill off Careless and certain broadleaf weeds.Soil surface is handled before usually making bud, can also be applied after the seedling of paddy field, is the weight of herbicide for paddy field Want kind.It is absorbed by its young shoot and immature secondary root, inhibits the synthesis of protein, keep weeds dead.It is mainly used for rice field Prevent and kill off annual gramineous weed and annual sedge weed and certain annual broadleaf weeds, it can also be used to barley, small The weed control of wheat, cotton, Peanut Crop field.It is miscellaneous such as to prevent and kill off barnyard grass in paddy field, Scirpus tabernaemontani, firefly Lin, needle spikesedge herb, Drilgrass, barnyard grass Grass.

Pretilachlor is selective preemergence herbicide, cell division inhibitor.Weeds are absorbed by middle hypocotyl and plumule Medicament, interferencing protein synthesis, also has indirect influence to the photosynthesis of weeds and respiration.Generally pass through soil treatment, Prevent and kill off the weeds such as paddy field barnyard grass, duck leaf grass, difformed galingale herb, Brittle Falsepimpernel Herb, needle spikesedge herb, kind algae, firefly Lin, to perennial weeds preventive effect compared with Difference.

In practical agricultural production process, the above medicament is used alone, it is relatively narrow that there are degrass spectrums, and dosage is big, at high cost Disadvantage, while pollution of the same medicament of single use for environment, Weed Resistance etc. all have a great impact.In order to develop speed Effect property and lasting effect are good, the lower new pesticide combination of use cost, we are raw indoors to survey the base screened with field trial On plinth, composition of the invention is developed；The composition has apparent synergistic effect, high-efficiency environment friendly, and does not send out so far The now relevant report about such compounding.

Summary of the invention

The object of the present invention is to provide a kind of three with synergistic function containing penoxsuam and pyribenzoxim First Herbicidal combinations.

It is a further object to provide application of the herbicide in agent for removing grass in paddy field.

A kind of Herbicidal combinations containing penoxsuam and pyribenzoxim, the Herbicidal combinations are by five fluorine of active components A One kind and pesticide of sulphur grass amine, active constituent B pyribenzoxim and active constituent C, that is, dichloro quinolinic acid, butachlor or pretilachlor Auxiliary element composition；

Further, active components A, active constituent B, active constituent C weight ratio be 1-50:1-50:1-50；Preferably 1- 10:1-10:1-50；

Further, in Herbicidal combinations, the weight percentage of active components A, B and C in herbicide is 1%-85%, excellent Selecting mass percentage is 10%-80%, further preferably 25%-50%；

Further, the ternary herbicide of active constituent of the invention can also add pesticidal preparations in addition to comprising active constituent Regular activated dose of upper permission, antidote, thickener, solvent, the auxiliary elements such as filler, are configured to any dose allowed on pesticide Type is preferably processed into missible oil, suspending agent, aqueous emulsion, wettable powder, water dispersible granules；

Further, application of the Herbicidal combinations of the present invention in agent for removing grass in paddy field is especially preventing and kill off paddy field standing grain The application of undergraduate course weeds and broadleaf weeds has many advantages, such as broad weed-killing spectrum, quick, low, the less toxic, safety and environmental protection of residual, is excellent The herbicide for paddy field of matter；

Compared to the prior art, beneficial effects of the present invention:

1) activity of weeding is high: Herbicidal combinations of the invention can kill weeds by the different mechanism of action, so that weeds are anti- Property generate speed reduce, effective ingredient consumption reduce, greatly improve the removing activity of herbicide；

2) herbicidal spectrum is wide, and the lasting period is long: after active constituent mixture of the invention, being capable of providing and prevents grass family and broadleaf weeds Control effect；

3) delay Weed Resistance: Herbicidal combinations of the present invention reduce weeds to the resistance of medicament by ternary built, and improve pair The preventive effect of resistant weed, to extend the service life of herbicide；

4) highly-safe: since the use content of various active constituents reduces, to make medicament under the premise of drug effect improves, pesticide is residual Reduction is stayed, is also improved to the safety of rice and succession crop, avoids pesticide residue to the possibility of toxicity to man and livestock Property；

In conclusion Herbicidal combinations of the invention, have broad weed-killing spectrum, quick, efficient, low, the less toxic, safety and environmental protection of residual The advantages that, scientific pesticide usage amount can be reduced, reduce pesticide residue, environmental-friendly, compatibility is good, is high-quality to safety of human and livestock Paddy field chemical herbicide.

Specific embodiment

Below by way of specific implementation, invention is further explained:

Preparation prepares case:

Embodiment 1: penoxsuam 2%, pyribenzoxim 3%, dichloro quinolinic acid 20%, alkyl phenol polyoxyethylene ether 3%, phenethyl Phenol polyethenoxy ether 12%, dimethylbenzene supplies surplus, and it is phonetic to be configured to 25% penoxsuam according to conventional formulation preparation method Pyridine oxime grass ether dichloro quinolinic acid missible oil.

Embodiment 2: penoxsuam 1%, pyribenzoxim 2%, butachlor 40%, alkyl phenol polyoxyethylene ether 3%, phenethyl Phenol polyethenoxy ether 10.5%, dimethylbenzene supplies surplus, is configured to 43% penoxsuam according to conventional formulation preparation method Pyribenzoxim butachlor ec.

Embodiment 3: penoxsuam 1%, pyribenzoxim 2%, pretilachlor 30%, alkyl phenol polyoxyethylene ether 2.5%, benzene second Base phenol polyethenoxy ether 11%, dimethylbenzene supplies surplus, is configured to 33% penoxsuam according to conventional formulation preparation method Pyribenzoxim pretilachlor missible oil.

Embodiment 4: penoxsuam 2%, pyribenzoxim 5%, dichloro quinolinic acid 20%, the condensation of methyl naphthalene sulfonic acid sodium formaldehyde Object 6%, nonylphenol polyoxyethylene ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 5%, tributyl phosphate 2%, silicone oil 0.2% add water to supply Surplus, being configured to mass percentage according to conventional preparation method is 27% penoxsuam pyribenzoxim dichloroquinoline Sour suspending agent.

Embodiment 5: penoxsuam 2%, pyribenzoxim 2%, butachlor 20%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonylphenol polyoxyethylene ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 5%, tributyl phosphate 2%, silicone oil 0.2% add water to supply surplus, Being configured to mass percentage according to conventional preparation method is 24% penoxsuam pyribenzoxim butachlor suspending agent.

Embodiment 6: penoxsuam 2%, pyribenzoxim 5%, pretilachlor 30%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonylphenol polyoxyethylene ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 5%, tributyl phosphate 2%, silicone oil 0.2% add water to supply surplus, Being configured to mass percentage according to conventional preparation method is 37% penoxsuam pyribenzoxim pretilachlor suspending agent.

Embodiment 7: penoxsuam 3%, pyribenzoxim 6%, dichloro quinolinic acid 6%, alkyl phenol polyoxyethylene ether 3%, first Base naphthalenesulfonic acid-formaldehyde condensate 6%, aluminium-magnesium silicate 0.5%, tributyl phosphate 2%, ethylene glycol 5%, 200# solvent naphtha 20% add water Surplus is supplied, being configured to percentage composition according to conventional formulation method is 15% penoxsuam pyribenzoxim, two chloroquine Quinoline sour water emulsion.

Embodiment 8: penoxsuam 3%, pyribenzoxim 6%, butachlor 20%, alkyl phenol polyoxyethylene ether 3%, methyl naphthalene Sodium sulfonate formaldehyde condensation products 6%, aluminium-magnesium silicate 0.5%, tributyl phosphate 2%, ethylene glycol 5%, 200# solvent naphtha 20% add water to supply Surplus, being configured to percentage composition according to conventional formulation method is 29% penoxsuam pyribenzoxim butachlor water and milk Agent.

Embodiment 9: penoxsuam 1%, pyribenzoxim 3%, pretilachlor 30%, alkyl phenol polyoxyethylene ether 3%, methyl naphthalene Sodium sulfonate formaldehyde condensation products 6%, aluminium-magnesium silicate 0.5%, tributyl phosphate 2%, ethylene glycol 5%, 200# solvent naphtha 15% add water to supply Surplus, being configured to percentage composition according to conventional formulation method is 34% penoxsuam pyribenzoxim pretilachlor water and milk Agent.

Embodiment 10: penoxsuam 5%, pyribenzoxim 5%, dichloro quinolinic acid 50%, NNO(di-2-ethylhexylphosphine oxide naphthalene sulfonic acids Sodium) 6%, wooden sodium iodate 4%, kaolin supplies surplus, and being configured to mass percentage according to conventional formulation method is 60% 5 Penoxsulam pyribenzoxim dichloro quinolinic acid wettable powder.

Embodiment 11: penoxsuam 10%, pyribenzoxim 10%, butachlor 30%, NNO(sodium methylene bis-naphthalene sulfonate) 6%, wooden sodium iodate 4%, kaolin supplies surplus, and being configured to mass percentage according to conventional formulation method is 50% 5 fluorine Sulphur grass amic metadiazine oxime grass ether butachlor wettable powder.

Embodiment 12: penoxsuam 10%, pyribenzoxim 10%, butachlor 30%, NNO(sodium methylene bis-naphthalene sulfonate) 6%, wooden sodium iodate 4%, kaolin supplies surplus, and being configured to mass percentage according to conventional formulation method is 50% 5 fluorine Sulphur grass amic metadiazine oxime grass ether butachlor wettable powder.

Embodiment 13: penoxsuam 2%, pyribenzoxim 3%, dichloro quinolinic acid 20%, NNO(di-2-ethylhexylphosphine oxide naphthalene sulfonic acids Sodium) 10%, ammonium phosphate 3%, polyvinyl alcohol 2%, kaolin supplies surplus, is configured to 25% penoxsulam according to conventional formulation method Amic metadiazine oxime grass ether dichloro quinolinic acid water dispersible granules.

Embodiment 14: penoxsuam 1%, pyribenzoxim 2%, dichloro quinolinic acid 40%, NNO(di-2-ethylhexylphosphine oxide naphthalene sulfonic acids Sodium) 10%, ammonium phosphate 3%, polyvinyl alcohol 2%, kaolin supplies surplus, is configured to 43% penoxsulam according to conventional formulation method Amic metadiazine oxime grass ether butachlor water dispersible granules.

Embodiment 15: penoxsuam: 1%, pyribenzoxim 2%, pretilachlor 30%, NNO(sodium methylene bis-naphthalene sulfonate) 10%, ammonium phosphate 3%, polyvinyl alcohol 2%, kaolin supplies surplus, is configured to 33% penoxsulam according to conventional formulation method Amic metadiazine oxime grass ether pretilachlor water dispersible granules.

Active case study on implementation

One, toxicity measures

Test objective: its co-toxicity coefficient to paddy field grass weeds and broadleaf weeds of different ratio composition measuring is prepared；

Target: barnyard grass, angustifolia arrowhead herb, nutgrass flatsedge；

Test method: quantitative grass seeds is seeded in respectively in the basin alms bowl of diameter 9cm, 20 seeds is sowed in every glass, in illumination It is cultivated in incubator, when weeds length to the 3-6 leaf phase, carries out spraying treatment.Continue to cultivate in greenhouse after processing, routine observation is each The preventive effect to weeds is handled, the weeds fresh weight of each processing is weighed after 30 days.

Test process: in addition to chemicals treatment, if 4 repetitions are arranged in 1 clear water control, every processing.

Data survey and statistical analysis: the growth conditions of weeds are observed and recorded after processing and investigate weeds after processing 30 days Preventive effect records the strain number of weeds respectively, calculates weeds strain preventive effect, calculates the anti-of different agents proportion according to Coldy method Effect.

Weeds strain preventive effect calculation formula:

In formula:

E: the practical strain preventive effect of herbicide single dose, mixture weeds；

C: control weeds aerial part weeds strain number；

T: processing weeds aerial part weeds strain number.

Ternary herbicide theory preventive effect E₀Calculation formula:

In formula:

E₀: herbicide A theoretical preventive effect mixed with B；

X: Weed-control effect when herbicide A dosage is P；

Y: Weed-control effect when herbicide B dosage is Q.

Z: Weed-control effect when herbicide C dosage is T.

E-E₀> 10% is synergistic effect；E-E₀< -10% is antagonism；- 10% < E-E₀< 10% is summation action.

Co-toxicity of each mixture of table 1 to paddy field barnyard grass

Synergy of each mixture of table 2 to paddy field angustifolia arrowhead herb

Synergy of each mixture of table 3 to paddy field nutgrass flatsedge

From table 1,2,3 as can be seen that three kinds of mixtures are synergistic effect for the indoor synergy of weeds.

Two, field control effectiveness test

Reagent agent: 4 kinds of ternary built herbicides in embodiment 1-3.

Comparison medicament: oil-suspending agent (commercially available) can be dispersed in 25 grams per liter penoxsuams, 5% pyribenzoxim missible oil.

Control object: the paddy field weeds such as barnyard grass, angustifolia arrowhead herb, nutgrass flatsedge.

Test method: according to experimental plot area, the good various medicaments of precise after being watered dilution, are sprayed using backpack Day with fog carries out even spraying, selects the dedicated Fan spray head of herbicide by spraying.When spraying, it should be noted that arrive medical fluid even spraying In experimental plot, more sprays, drain spray phenomenon are prevented.

After test respectively 15 days after medicine, 30 days observation weeds death conditions, and the activity of weeding of more various medicaments.This Outside, whether the growing state that also observe crop in 1-15 days after medicine, have phytotoxicity to investigate medicament to crop.

Drug effect calculation formula:

Crop safety sex investigation:

Observing medicament, whether there is or not phytotoxicity to rice, record the type and extent of phytotoxicity.It can record by following requirements: be classified according to phytotoxicity Method to each cell phytotoxicity deciding grade and level marking.

1 grade: paddy growth is normal, without any damage symptoms；

2 grades: the slight phytotoxicity of rice, phytotoxicity are less than 10%；

3 grades: the medium phytotoxicity of rice can restore later, not influence yield；

4 grades: rice drug misadventuring is heavier, it is difficult to restore, cause the underproduction；

5 grades: rice drug misadventuring is serious, cannot restore, and causes the obvious underproduction or total crop failure.

Test result:

3 field control effectiveness test result of table (15,30 days)

By table 3 it is found that composition of the invention, is preventing and treating all having for paddy field common weed barnyard grass, angustifolia arrowhead herb and nutgrass flatsedge Good preventive effect, and all there is apparent preventive effect compared with single dose.After medicine 15 days compositions to barnyard grass Rectifying efficacies 70% or more, To the Rectifying efficacies of angustifolia arrowhead herb 85% or more, to the Rectifying efficacies of nutgrass flatsedge 75% or more；30 days compositions are to barnyard grass after medicine The Rectifying efficacies of grass 85% or more, for angustifolia arrowhead herb, nutgrass flatsedge Rectifying efficacies 90% or more.

Table 4 respectively handles field safety results

By table 4 it is found that composition of the invention, in the case where testing dosage range, for paddy growth without influence.

Herbicidal combinations of the present invention, which have, expands herbicidal spectrum, improves activity of weeding, and have preferable quick-acting and holding effect Property；And the rice is doing well during test, has no any medicine spot, illustrates that above-mentioned several medicaments are safe to rice.

Claims (8)

1. a kind of Herbicidal combinations containing penoxsuam and pyribenzoxim, which is characterized in that active constituent include activity at Point A, B, C, wherein A is penoxsuam, and B is pyribenzoxim, C be dichloro quinolinic acid, butachlor, pretilachlor one kind.

2. Herbicidal combinations according to claim 1, which is characterized in that active components A, B, C mass ratio be 1-50:1- 50:1-50。

3. Herbicidal combinations according to claim 1, which is characterized in that active components A, B, C mass ratio be 1-10:1- 10:1-50。

4. Herbicidal combinations according to claim 1, which is characterized in that the composition is by active constituent and auxiliary element group At.

5. Herbicidal combinations according to claim 4, which is characterized in that quality is 1%-85% to active constituent in the formulation, Preferred mass percentage composition is 10%-80%, further preferably 25%-50%.

6. Herbicidal combinations according to any one of claims 1 to 5, which is characterized in that the composition can be prepared into agricultural Any dosage form of upper permission, preferably missible oil, suspending agent, aqueous emulsion, wettable powder, water dispersible granules.

7. Herbicidal combinations according to claim 1 are applied to prevent and kill off the purposes of paddy field weed.

8. method according to claim 6, which is characterized in that the weeds are grass, broad-leaved and nutgrass flatsedge.