CN107568232A - A kind of ternary weeding composition containing pyraflufen-ethyl - Google Patents

Abstract

The invention discloses a kind of ternary weeding composition containing pyraflufen-ethyl and its application, effective active composition is made up of the first active component pyraflufen-ethyl, the second active component florasulam and the 3rd active component fluroxypyr or the different monooctyl ester of fluroxypyr, the percentage by weight that pyraflufen-ethyl accounts for the composition is 1%~20%, the percentage by weight that florasulam accounts for the composition is 0.1~10%, and the percentage by weight that fluroxypyr or the different monooctyl ester of fluroxypyr account for the composition is 10~50%.This composition can be configured to wettable powder, water dispersible granules, suspending agent, dispersible oil-suspending agent, microemulsion, the suspension emulsion agriculturally allowed.Instant component is reasonable, it is good in cornfield herbicidal effect, and its activity and herbicidal effect are not the simple superposition of each component activity, compared with existing unitary agent or binary built preparation, in addition to significant herbicidal effect, and there is significant synergistic effect, dosage is reduced, herbicide controlling spectrum increases, good to crop safety.

Description

A kind of ternary weeding composition containing pyraflufen-ethyl

Technical field

The present invention relates to a kind of cornfield herbicidal composition, by active component pyraflufen-ethyl, florasulam and chlorine fluorine pyrrole oxygen second Acid or the different monooctyl ester of fluroxypyr and auxiliary agent composition, belong to technical field of compounded pesticide.

Background technology

Pyraflufen-ethyl, English name pyraflufen-ethyl, chemical name are the chloro- 5- of 2- (the chloro- 5- difluoromethoxies of 4- Base -1- methylpyrazole -3- bases) -4- fluorophenoxyacetate ethyl esters.The medicine is contact phenylpyrazole class postemergence weed control Agent, its mechanism of action is to suppress the oxidizing ferment of protoporphyrin 4 in plant, and the difference for being absorbed and being deposited to medicine using wheat and weeds The metabolin of different activities produced by different, reach the effect for optionally preventing and treating wheatland weeds.

Florasulam, English name florasulam, chemical name are：The fluoro- 5- ethyoxyls -8- fluorine of 2', 6'- bis- [1,2,4] triazole [1,5-c] pyrimidine -2- sulfonanilides, triazolopyrimidine sulfonamides superelevation effective herbicide, closed for acetolactic acid Into enzyme（ALS）Inhibitor, be inner-adsorption conduction-type herbicide, can conduct to weeds complete stool, thus herbicide is thorough, Bu Huifu Hair.Efficacy stability at low temperature, even at 2 DEG C, still ensure that stable drug effect.Double fluorine sulphur grass press broad weed-killing spectrum, can prevent and kill off The most broad leaved weed of wheatland, including the difficult anti-weeds such as clearvers, corn gromwell, and to be most difficult in wheatland anti-wartwort have it is extraordinary Inhibitory action.

Fluroxypyr, English name fluroxypyr, chemical name are the fluoro- pyrroles of chloro- 6- of 4- amino -3,5- bis- Pyridine -2- pyridine fluoroacetic acid 1- methyl-heptyl esters, inner sucting conduction type herbicide after seedling.It is absorbed by plants quickly after medicine, makes sensitive plant There is the reaction of classical hormones class herbicide, plant deformity, distortion in thing.In drug resistance plant such as wheat body, fluorine grass can be tied surely Synthesis conjugates loses toxicity, so as to selectivity.Temperature on the final effect of its weeding without influence, but influence its drug effect hair The speed waved.Drug effect plays slower typically when temperature is low, is stopped growing after can making dunsiekte, but not dead immediately；Temperature Plant is dead quickly after rise.Leaching is not notable in soil, is largely distributed in 0-10 centimetres of topsoil, aerobic bar Under part, the non-poisonous materials such as 2- pyridine alcohol are degraded into quickly in the effect of edaphon, half-life period is shorter in soil, will not be right Lower stubble broad leaf crop has an impact.

The different monooctyl ester of fluroxypyr, English name fluroxypyr-meptyl, chemical name are 4- amino -3,5- The two chloro- fluoro- different monooctyl esters of 2- pyridines fluoroacetic acid of 6-.The different monooctyl ester category inner sucting conduction type after seedling cauline leaf process weeding of fluroxypyr Agent, absorbed quickly by weeds after dispenser, sensitive plant the reaction of classical hormones class herbicide is occurred and be transmitted to each portion of complete stool Position, make plant deformity, distortion, it is last dead.Suitable for wheat, barley, corn, grape, orchard, pasture, forest land, lawn and other places Broad leaved weed, such as clearvers, volume stem smartweed, purslane, black nightshade, field bindweed, knotweed, amaranth are prevented and kill off, it is invalid to grassy weed.

Applicant has found do not have pyraflufen-ethyl, florasulam and fluroxypyr or chlorine fluorine pyrrole oxygen still at present through retrieval The composition patent of 2-ethyl hexyl ethanoate three compounding.Simultaneously by long-term experiment it was unexpectedly observed that the mechanism of action is different Pyraflufen-ethyl, florasulam and fluroxypyr or fluroxypyr different monooctyl ester compounding, to clearvers, Veronica, chickweed, The weeds such as Descurainia sophia, shepherd's purse have obvious synergistic effect, significantly improve the prevention effect to broad leaved weed, expand herbicide Spectrum, dosage is reduced, reduce cost accounting, improve to crop safety.

The content of the invention

It is an object of the invention to provide a kind of component is reasonable, drug cost is low, and synergistic effect is notable, and herbicidal effect is good, Preventing and treating spectrum is wide, to the ternary weeding composition containing pyraflufen-ethyl of crop safety.

Another object of the present invention is to provide the ternary weeding composition preparation formulation containing pyraflufen-ethyl.

It is still another object of the present invention to provide application of the above-mentioned composition on preventing and treating wheatland broad leaved weed.

The defects of in order to overcome existing unitary agent or two-spot to compound, the technical scheme of Herbicidal combinations of the present invention is so Solve：

A）First active component pyraflufen-ethyl；

B）Second active component florasulam；

C）3rd active component fluroxypyr or the different monooctyl ester of fluroxypyr.

The percentage by weight that pyraflufen-ethyl accounts for the composition is 1%~20%, and florasulam accounts for the weight of the composition Percentage is 0.1~10%, and the percentage by weight that fluroxypyr or the different monooctyl ester of fluroxypyr account for the composition is 10 ~50%.

A kind of ternary weeding composition containing pyraflufen-ethyl of the present invention is according to the method well known to those skilled in the art of the present technique The preparation formulation that can be prepared is wettable powder, water dispersible granules, suspending agent, dispersible oil-suspending agent, microemulsion, outstanding breast Agent.

To wettable powder, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, polyoxyethylene gather Oxypropylene group ether block copolymers, alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol-polyethenoxy base ether phosphate, poly alkyl alcohol One or more in oxygen ethene ether phosphate, alkylphenol-polyethenoxy base ether sulfonate etc.；Wetting agent such as alkyl sulfate, alkane One or more in base sulfonate, alkylnaphthalene sulfonate etc.；Filler such as ammonium sulfate, urea, sucrose, glucose, diatomite, height One or more in ridge soil, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, clay etc..

To water dispersible granules, workable auxiliary agent has：Dispersant such as polycarboxylate（TERSPERSE 2700、T36、GY- D06 etc.）, lignosulfonates, the one or more in alkylnaphthalene sulfonate etc.；Wetting agent such as alkyl sulfate, alkyl sulfonic acid One or more in salt, naphthalene sulfonate etc.；Disintegrant such as ammonium sulfate, sodium sulphate, polyvinylpyrrolidone, starch and its derivative One or more in thing, bentonite etc.；Binding agent such as starch, glucose, polyvinyl alcohol, polyethylene glycol, carboxymethyl cellulose One or more in sodium, sucrose etc.；Filler such as diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, clay One or more in.

To suspending agent, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, alkyl naphthalene formaldehyde condensation Thing sulfonate, alkylphenol-polyethenoxy base ether phosphate, alkylphenol-polyethenoxy base ether sulfonate, phenethyl phenol polyoxyethylene groups Ether phosphate, alkyl polyoxyethylene ether sulfonate, polyoxyethylene polyoxypropylene base ether block copolymers, pull open powder, dodecyl One or more in polyoxyethylene ether phosphate etc.；Wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate, Phenethyl phenol polyoxyethylene groups ether phosphate, alkyl sulfate, alkylsulfonate, alkylnaphthalene sulfonate, alkylphenol-formaldehyde resin One or more in APEO, triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer etc.；Thickener such as Huang One kind in virgin rubber, polyvinyl alcohol, bentonite, aluminium-magnesium silicate, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose etc. It is or a variety of；One or more in preservative such as formaldehyde, benzoic acid, sodium benzoate, potassium sorbate, OIT；Defoaming Agent such as silicone oil, silicone compound, C10-20 saturated fat acid compounds, C8-10 aliphatic alcohols, hexanol, butanol, octanol etc. In one or more；In antifreezing agent such as ethylene glycol, propane diols, glycerine, polyethylene glycol, sorbierite, urea, inorganic salts One or more；Water is deionized water.

To dispersible oil-suspending agent, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene Sulfonate（Dispersing agent NNO）、TERSPERSE 2020（Huntsman Corporation of U.S. HUNTSMAN produces, alkyl naphthalene sulfonic acid salt）Deng In one or more；Emulsifying agent such as BY（Castor oil polyoxyethylene ether）Serial emulsifying agent（BY-110、BY-125、BY-140）、 Nongru-700 #（Alkyl phenol formaldehyde resin polyoxyethylene ether）, agriculture breast 2201, this disk -60#（Sorbitan monostearate）, tell Temperature -60#（Sorbitan monostearate APEO）, agriculture breast 1601#（Phenethyl phenol polyoxyethylene polyoxypropylene Ether）、TERSPERSE 4894（Huntsman Corporation of the U.S. produces）One or more in；Wetting agent such as alkylphenol-polyethenoxy Base ether formaldehyde condensation products sulfate, APES phosphate, phenethyl phenol polyoxyethylene groups ether phosphate, alkyl sulfide Hydrochlorate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500（Huntsman Corporation of the U.S. produces）One or more in； One or more in thickener such as white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Antifreezing agent such as ethylene glycol, the third two One or more in alcohol, glycerine, urea, inorganic salts such as sodium chloride；Decentralized medium for example soybean oil, rapeseed oil, small wheat oil, One or more in methyl oleate, diesel oil, machine oil, mineral oil etc..

To microemulsion, workable auxiliary agent has：Emulsifying agent such as agriculture breast 500#（Calcium dodecyl benzene sulfonate）, Nongru-700 #, Agriculture breast 2201, this disk-60#, polysorbate60-#, TX-10, agriculture breast 1601（Phenethyl phenol polyoxyethylene poly-oxygen propylene aether）, agriculture breast One or more in 600#, agriculture breast 400# etc.；One kind or more in assistant for emulsifying agent such as methanol, isopropanol, n-butanol, ethanol Kind；Solvent such as cyclohexanone, 1-METHYLPYRROLIDONE, dimethylbenzene, toluene, solvent naphtha（The trade mark：S-150、S-180、S-200）In One or more；One or more in stabilizer such as triphenyl phosphite, epoxychloropropane；Water is deionized water.

To suspension emulsion, workable auxiliary agent has：Emulsifying agent such as calcium dodecyl benzene sulfonate（Agriculture breast 500#）, Nongru-700 #, Agriculture breast 2201, this disk -60#, emulsifying agent T-60（Common name：Anhydrous sorbitol single-hard ester acid ester APEO）、TX-10（It is logical With name：Octyl phenol polyoxyethylene（10）Ether）, agriculture breast 1601#, agriculture breast 600#, the one or more in agriculture breast 400#；Dispersant is such as It is one or more in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate；Solvent such as repefral, adjacent benzene two It is one or more in formic acid dibutyl ester, ethyl acetate, methyl benzoate；Defoamer is as such as silicone oil, silicone compound, C10-20 One or more in saturated fat acids compound, C8-10 aliphatic alcohols, hexanol, butanol, octanol；Thickener such as white carbon, It is one or more in polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Antifreeze such as ethylene glycol, propane diols, glycerine, urea, inorganic salts Such as one or more in sodium chloride；Water is deionized water.

Instant component is reasonable, and herbicidal effect is good, and drug cost is low, and its activity and herbicidal effect are not each component activity Simple superposition, but have significant synergistic effect, control of weeds spectrum can be expanded, delaying drug resistance is good to crop safety, meets The security requirement of pesticidal preparations.The present invention has good prevention effect to wheatland broad leaved weed.

Embodiment

Illustrate pyraflufen-ethyl, florasulam and fluroxypyr or chlorine fluorine pyrrole oxygen second below by Toxicity Determination The different monooctyl ester of acid compounds the synergistic effect to wheatland broad leaved weed.

In order to prevent and treat wheatland broad leaved weed, we are with pyraflufen-ethyl, florasulam and fluroxypyr or chlorine fluorine pyrrole oxygen 2-ethyl hexyl ethanoate has carried out the synergy research of mutual compounding, test method reference《People's Republic of China's agricultural industry criteria The part of the farm-chemical indoor determination test rules of NY/T1155.4-2006 herbicide the 4th：Active determination test cauline leaf is sprayed Method》With《People's Republic of China's farm-chemical indoor determination test rules of agricultural industry criteria NY/T1155.7-2006 are removed The careless part of agent the 7th：The synergy measure of mixture》.

Subjects are wheatland clearvers（Galium aparine）, Veronica（Veronica didyma）, chickweed （Stellaria media）, Descurainia sophia（Descurainia sophia）, shepherd's purse（Capsella bursa-pastoris）.

The test medicine that active compound is configured to need, single dose and each compound drug are set into 5 various concentrations gradients first （It is different according to dosages distribution on the basis of pilot study result, concentration gradient set it is also different, prevent and kill off rate 5%~ Set in the range of 90% by geometric progression）.If clear water compares, it is repeated 4 times.Weeds were in for 2~3 leaf phases, from low dosage to high agent Amount carries out spraying treatment respectively.It is placed in after processing in greenhouse and cultivates observation, the moisturizing in a manner of the bottom infiltrating irrigation of basin alms bowl.

21 days after the processing fresh weight preventive effects for calculating each chemicals treatment, pass through the probit value of preventive effect and the logarithm value of series concentration Between linear regression analysis, obtain the ED of each medicament₅₀Value, the co-toxicity coefficient of mixture is calculated with the abundant methods of Sun Yun（CTC）, come with this Evaluate activity of the reagent agent to weeds.

Co-toxicity coefficient CTC >=120 of complex preparation show as synergistic effect；CTC≤80 show as antagonism；80 ＜ CTC ＜ 120 show as summation action.

The pyraflufen-ethyl of table 1, florasulam are combined with fluroxypyr to clearvers toxicity test

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.26	100.00	-	-
Florasulam（B）	1.35	241.48	-	-
					Fluroxypyr（C）	83.26	3.92	-	-
A:B:C=4:3:15	4.03	80.89	53.78	150.41
					A:B:C=10:0.1:10	4.26	76.53	52.90	144.66
A:B:C=16:2:20	3.92	83.16	56.88	146.22
					A:B:C=20:5:50	4.71	69.21	45.38	152.54
A:B:C=6:1:10	3.63	89.81	51.80	173.37
					A:B:C=8:7:25	3.54	92.09	64.71	142.32
A:B:C=1:4:15	3.45	94.49	56.23	168.04
					A:B:C=12:10:30	3.26	100.00	71.77	139.33
A:B:C=14:6:35	3.75	86.93	54.29	160.13
					A:B:C=18:9:40	3.34	97.60	61.64	158.34
A:B:C=2:8:45	4.75	68.63	41.96	163.55

The pyraflufen-ethyl of table 2, florasulam are combined with fluroxypyr to Veronica toxicity test

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.87	100.00	-	-
Florasulam（B）	1.14	339.47	-	-
					Fluroxypyr（C）	82.46	4.69	-	-
A:B:C=4:3:15	4.15	93.25	67.67	137.80
					A:B:C=10:0.1:10	4.32	89.58	53.78	166.59
A:B:C=16:2:20	4.21	91.92	62.44	147.21
					A:B:C=20:5:50	4.46	86.77	52.43	165.51
A:B:C=6:1:10	4.02	96.27	58.02	165.91
					A:B:C=8:7:25	3.26	118.71	82.34	144.17
A:B:C=1:4:15	3.64	106.32	76.41	139.13
					A:B:C=12:10:30	2.85	135.79	91.07	149.11
A:B:C=14:6:35	3.35	115.52	65.47	176.44
					A:B:C=18:9:40	3.54	109.32	75.27	145.24
A:B:C=2:8:45	3.98	97.24	56.85	171.03

The pyraflufen-ethyl of table 3, florasulam are combined with fluroxypyr to chickweed toxicity test

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.54	100.00	-	-
Florasulam（B）	1.69	209.47	-	-
					Fluroxypyr（C）	75.75	4.67	-	-
A:B:C=4:3:15	4.49	78.84	49.93	157.90
					A:B:C=10:0.1:10	4.85	72.99	53.12	137.41
A:B:C=16:2:20	4.87	72.69	55.59	130.76
					A:B:C=20:5:50	5.12	69.14	43.75	158.05
A:B:C=6:1:10	4.58	77.29	50.36	153.47
					A:B:C=8:7:25	4.25	83.29	59.58	139.81
A:B:C=1:4:15	4.32	81.94	50.40	162.59
					A:B:C=12:10:30	4.12	85.92	66.06	130.08
A:B:C=14:6:35	4.52	78.32	51.28	152.73
					A:B:C=18:9:40	3.69	95.93	57.79	166.00
A:B:C=2:8:45	5.93	59.70	37.93	157.39

The pyraflufen-ethyl of table 4, florasulam are combined with fluroxypyr to Descurainia sophia toxicity test

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	4.21	100.00	-	-
Florasulam（B）	2.03	207.39	-	-
					Fluroxypyr（C）	78.34	5.37	-	-
A:B:C=4:3:15	4.96	84.88	50.13	169.33
					A:B:C=10:0.1:10	5.78	72.84	53.46	136.25
A:B:C=16:2:20	5.64	74.65	55.85	133.66
					A:B:C=20:5:50	5.41	77.82	44.08	176.56
A:B:C=6:1:10	5.26	80.04	50.65	158.01
					A:B:C=8:7:25	4.31	97.68	59.65	163.75
A:B:C=1:4:15	5.56	75.72	50.51	149.91
					A:B:C=12:10:30	4.51	93.35	66.06	141.31
A:B:C=14:6:35	4.96	84.88	51.50	164.82
					A:B:C=18:9:40	5.25	80.19	57.93	138.42
A:B:C=2:8:45	6.94	60.66	38.20	158.81

The pyraflufen-ethyl of table 5, florasulam are combined with fluroxypyr to shepherd's purse toxicity test

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.97	100.00	-	-
Florasulam（B）	1.24	320.16	-	-
					Fluroxypyr（C）	73.94	5.37	-	-
A:B:C=4:3:15	2.12	187.26	65.50	285.90
					A:B:C=10:0.1:10	4.53	87.64	54.02	162.25
A:B:C=16:2:20	4.72	84.11	61.78	136.14
					A:B:C=20:5:50	2.73	145.42	51.59	281.88
A:B:C=6:1:10	3.69	107.59	57.29	187.81
					A:B:C=8:7:25	9.36	42.41	79.38	53.43
A:B:C=1:4:15	11.24	35.32	73.06	48.34
					A:B:C=12:10:30	4.26	93.19	87.74	106.21
A:B:C=14:6:35	3.94	100.76	63.80	157.94
					A:B:C=18:9:40	4.25	93.41	73.08	127.82
A:B:C=2:8:45	2.68	148.13	54.60	271.32

The pyraflufen-ethyl of table 6, florasulam are combined to clearvers toxicity test with the different monooctyl ester of fluroxypyr

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.26	100.00	-	-
Florasulam（B）	1.35	241.48	-	-
					The different monooctyl ester of fluroxypyr（C）	72.51	4.50	-	-
A:B:C=4:3:15	4.16	78.37	54.18	144.65
					A:B:C=10:0.1:10	4.51	72.28	53.19	135.90
A:B:C=16:2:20	4.25	76.71	57.18	134.15
					A:B:C=20:5:50	4.26	76.53	45.76	167.22
A:B:C=6:1:10	3.69	88.35	52.14	169.43
					A:B:C=8:7:25	3.14	103.82	65.07	159.56
A:B:C=1:4:15	4.13	78.93	56.67	139.29
					A:B:C=12:10:30	2.92	111.64	72.11	154.83
A:B:C=14:6:35	3.54	92.09	54.66	168.48
					A:B:C=18:9:40	3.85	84.68	61.99	136.60
A:B:C=2:8:45	4.85	67.22	42.44	158.38

The pyraflufen-ethyl of table 7, florasulam are combined to Veronica toxicity test with the different monooctyl ester of fluroxypyr

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.87	100.00	-	-
Florasulam（B）	1.14	339.47	-	-
					The different monooctyl ester of fluroxypyr（C）	65.98	5.87	-	-
A:B:C=4:3:15	4.16	93.03	68.47	135.86
					A:B:C=10:0.1:10	4.63	83.59	54.36	153.77
A:B:C=16:2:20	4.15	93.25	63.06	147.88
					A:B:C=20:5:50	4.32	89.58	53.21	168.36
A:B:C=6:1:10	4.58	84.50	58.71	143.92
					A:B:C=8:7:25	3.15	122.86	83.07	147.89
A:B:C=1:4:15	3.38	114.50	77.29	148.13
					A:B:C=12:10:30	3.13	123.64	91.74	134.77
A:B:C=14:6:35	3.69	104.88	66.22	158.38
					A:B:C=18:9:40	3.52	109.94	75.97	144.72
A:B:C=2:8:45	3.98	97.24	57.81	168.19

The pyraflufen-ethyl of table 8, florasulam are combined to chickweed toxicity test with the different monooctyl ester of fluroxypyr

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.54	100.00	-	-
Florasulam（B）	1.69	209.47	-	-
					The different monooctyl ester of fluroxypyr（C）	56.34	6.28	-	-
A:B:C=4:3:15	4.56	77.63	51.03	152.13
					A:B:C=10:0.1:10	4.76	74.37	53.92	137.93
A:B:C=16:2:20	4.48	79.02	56.44	140.01
					A:B:C=20:5:50	4.85	72.99	44.82	162.85
A:B:C=6:1:10	4.35	81.38	51.31	158.60
					A:B:C=8:7:25	3.58	98.88	60.58	163.22
A:B:C=1:4:15	4.42	80.09	51.61	155.20
					A:B:C=12:10:30	3.84	92.19	66.98	137.63
A:B:C=14:6:35	4.16	85.10	52.30	162.70
					A:B:C=18:9:40	3.85	91.95	58.75	156.50
A:B:C=2:8:45	5.74	61.67	39.25	157.15

The pyraflufen-ethyl of table 9, florasulam are combined to Descurainia sophia toxicity test with the different monooctyl ester of fluroxypyr

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	4.21	100.00	-	-
Florasulam（B）	2.03	207.39	-	-
					The different monooctyl ester of fluroxypyr（C）	59.67	7.06	-	-
A:B:C=4:3:15	5.26	80.04	51.27	156.10
					A:B:C=10:0.1:10	5.82	72.34	54.29	133.23
A:B:C=16:2:20	5.64	74.65	56.73	131.57
					A:B:C=20:5:50	5.62	74.91	45.20	165.75
A:B:C=6:1:10	5.43	77.53	51.64	150.13
					A:B:C=8:7:25	4.58	91.92	60.70	151.43
A:B:C=1:4:15	4.69	89.77	51.77	173.39
					A:B:C=12:10:30	4.56	92.32	67.03	137.74
A:B:C=14:6:35	4.75	88.63	52.57	168.60
					A:B:C=18:9:40	4.69	89.77	58.94	152.31
A:B:C=2:8:45	7.54	55.84	39.57	141.09

The pyraflufen-ethyl of table 10, florasulam are combined to shepherd's purse toxicity test with the different monooctyl ester of fluroxypyr

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Pyraflufen-ethyl（A）	3.97	100.00	-	-
Florasulam（B）	1.24	320.16	-	-
					The different monooctyl ester of fluroxypyr（C）	51.24	7.75	-	-
A:B:C=4:3:15	3.83	103.66	67.12	154.43
					A:B:C=10:0.1:10	5.13	77.39	55.20	140.20
A:B:C=16:2:20	4.56	87.06	63.03	138.12
					A:B:C=20:5:50	4.62	85.93	53.18	161.60
A:B:C=6:1:10	4.86	81.69	58.68	139.20
					A:B:C=8:7:25	3.26	121.78	80.87	150.59
A:B:C=1:4:15	3.69	107.59	74.84	143.75
					A:B:C=12:10:30	3.12	127.24	89.12	142.78
A:B:C=14:6:35	4.21	94.30	65.31	144.38
					A:B:C=18:9:40	3.63	109.37	74.50	146.80
A:B:C=2:8:45	4.59	86.49	56.54	152.96

Toxicity Determination result shows：The 10~20% of composition are accounted for according to pyraflufen-ethyl content, florasulam content accounts for combination 10~50% ratio that the 0.1~10% of thing, fluroxypyr or the different monooctyl ester content of fluroxypyr account for composition is used with, There is preferable virulence to clearvers, Veronica, chickweed, Descurainia sophia, shepherd's purse, co-toxicity coefficient CTC is synergy all greater than 120 Effect.

In order to which the present invention is better described, present invention is described further with reference to embodiment, in formula Percentage is weight percentage.

Example of formulations 1

Weigh 20% pyraflufen-ethyl, 5% florasulam, 10% fluroxypyr, 6% alkyl naphthalene formaldehyde condensation product sulfoacid calcium, 4% alkane Base phenol polyethenoxy base ether sulfonic acid sodium, 2% Negel, 4% White Carbon black, fine particle calcium carbonate add to 100% parts by weight.Above-mentioned raw materials pass through Mix, 35% pyraflufen-ethyl florasulam fluroxypyr wettable powder is made after air-flow crushing.

Example of formulations 2

Weigh 15% pyraflufen-ethyl, 6% florasulam, the different monooctyl ester of 15% fluroxypyr, 8% sodium lignin sulfonate, 6% fatty alcohol Polyoxyethylene ether phosphate, 5% sodium lignin sulfonate, 5% sodium alkyl sulfate, 3% attapulgite, kaolin add to 100% parts by weight. Above-mentioned raw materials are blended, and the 36% different monooctyl ester wettable of pyraflufen-ethyl florasulam fluroxypyr is made after air-flow crushing Pulvis.

Example of formulations 3

Weigh 20% pyraflufen-ethyl, 8% florasulam, 12% fluroxypyr, 8% Negel, 6% sodium lignin sulfonate, 2% nekal, 3% sodium naphthalene sulfonate, 4% sodium carboxymethylcellulose, 4% sodium sulphate, talcum powder add to 100% parts by weight.On The method for stating raw material frequent regulation water intaking dispersible granule mixes, ultra micro air-flow crushing, mixing, that granulation step produces 40% pyrrole is careless Ether florasulam fluroxypyr water dispersible granules.

Example of formulations 4

Weigh 15% pyraflufen-ethyl, 9% florasulam, the different monooctyl ester of 18% fluroxypyr, 5% polycarboxylate TERSPERSE 2700th, 5% lauryl sodium sulfate, 2% sodium alkyl sulfonate, 5% polyvinyl alcohol, attapulgite add to 100% parts by weight.Above-mentioned raw materials The method i.e. mixing of frequent regulation water intaking dispersible granule, ultra micro air-flow crushing, mixing, granulation step produce 42% pyraflufen-ethyl pair The different monooctyl ester water dispersible granules of penoxsulam fluroxypyr.

Example of formulations 5

Weigh 10% pyraflufen-ethyl, 7% florasulam, 12% fluroxypyr, 6% sodium alkyl sulfate, 5% alkylphenol-formaldehyde resin APEO, 0.5% methylcellulose, 4% ethylene glycol, 0.5% OIT, 0.4% butanol, deionized water add to 100% weight Measure part.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and the double fluorine sulphur grass of 29% pyraflufen-ethyl are made after being sanded with sand mill Amine fluroxypyr suspending agent.

Example of formulations 6

Weigh 5% pyraflufen-ethyl, 4% florasulam, the different monooctyl ester of 21% fluroxypyr, 5% alkylpolyoxyethylene phosphoric acid Ester, 2% alkyl polyoxyethylene ether sodium sulfonate, 1% aluminium-magnesium silicate, 0.4% carboxyethyl cellulose, 4% potassium sorbate, 0.5% benzoic acid Sodium, 0.5% silicone oil, deionized water add to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, uses sand mill The 30% different monooctyl ester suspending agent of pyraflufen-ethyl florasulam fluroxypyr is made after sand milling.

Example of formulations 7

Weigh 8% pyraflufen-ethyl, 3% florasulam, 14% fluroxypyr, 5% Negel, 5% this disk -60#, 6% agriculture Newborn 2201,2% sodium alkyl sulfate, 0.5% white carbon, 6% propane diols, small wheat oil add to 100% parts by weight.Above-mentioned raw materials are blended, High speed shear disperses 30min, and it is dispersible that 25% pyraflufen-ethyl florasulam fluroxypyr is made after being sanded with sand mill Oil-suspending agent.

Example of formulations 8

Weigh 4% pyraflufen-ethyl, 2% florasulam, 16% fluroxypyr, 7%TERSPERSE 2020,8% Tween-60 #, 4% Nongru-700 #, 1% sodium naphthalene sulfonate, 0.5% aluminium-magnesium silicate, 4% urea, methyl oleate add to 100% parts by weight.Above-mentioned raw materials are through mixed Close, high speed shear disperses 30min, and it is different that 22% pyraflufen-ethyl florasulam fluroxypyr is made after being sanded with sand mill The dispersible oil-suspending agent of monooctyl ester.

Example of formulations 9

Weigh 2% pyraflufen-ethyl, 0.1% florasulam, 22% fluroxypyr, 6% agriculture breast 1601#, 4% agriculture breast 400#, 10% 2 Toluene, 4% toluene, 5% ethanol, through dissolving completely and being well mixed, deionized water adds to 100% parts by weight, is made after stirring 24.1% pyraflufen-ethyl florasulam fluroxypyr microemulsion.

Example of formulations 10

Weigh 6% pyraflufen-ethyl, 1% florasulam, the different monooctyl ester of 26% fluroxypyr, 6% Nongru-700 #, 8% polysorbate60-#, 12% 1-METHYLPYRROLIDONE, 6% n-butanol, through dissolving completely and being well mixed, deionized water adds to 100% parts by weight, is made after stirring Obtain the 33% different monooctyl ester microemulsion of pyraflufen-ethyl florasulam fluroxypyr.

Example of formulations 11

Weigh 11% pyraflufen-ethyl, 5% florasulam, 12% fluroxypyr, 5% agriculture breast 600#, 5% Negel, 6% benzene Methyl formate, 5% glycerine, 0.5% butanol, 1% bentonite, deionized water add to 100% parts by weight.Above-mentioned raw materials pass through high speed shear It is well mixed, ball milling 2~3 hours in ball mill, make diameter of particle all below 5 μm, that is, the double fluorine of 28% pyraflufen-ethyl are made Sulphur grass amine fluroxypyr suspension emulsion.

Example of formulations 12

Weigh 14% pyraflufen-ethyl, 4% florasulam, the different monooctyl ester of 14% fluroxypyr, 4% Nongru-700 #, 4% polycarboxylic acids sodium, 5% Ethyl acetate, 3% ethylene glycol, 1% hexanol, 1.5% aluminium-magnesium silicate, deionized water add to 100% parts by weight.Above-mentioned raw materials are by a high speed Shear-mixed is uniform, ball milling 2~3 hours in ball mill, makes diameter of particle all below 5 μm, that is, 32% pyraflufen-ethyl is made The different monooctyl ester suspension emulsion of florasulam fluroxypyr.

Biological Examples 1：Prevent and treat wheat weedses broad-leaved field control effectiveness test.

Inventor has carried out example of formulations 1 in 2016 in Xiuqian City of Jiangsu Province Sihong（The double fluorine sulphur grass of 35% pyraflufen-ethyl Amine fluroxypyr wettable powder）, example of formulations 4（42% pyraflufen-ethyl florasulam fluroxypyr is different Monooctyl ester water dispersible granules）, example of formulations 5（29% pyraflufen-ethyl florasulam fluroxypyr suspending agent）, preparation it is real Apply example 8（The 22% dispersible oil-suspending agent of the different monooctyl ester of pyraflufen-ethyl florasulam fluroxypyr）, example of formulations 9 （24.1% pyraflufen-ethyl florasulam fluroxypyr microemulsion）, example of formulations 12（The double fluorine sulphurs of 32% pyraflufen-ethyl The careless different monooctyl ester suspension emulsion of amine fluroxypyr）Wheat weedses field control effectiveness test is prevented and treated, it is wealthy to wheatland to demonstrate the medicament The prevention effect of leaf weeds and the security to wheat.

Trial crops are wheat, and controlling object is wheatland broad leaved weed, the leaf phase dispenser of weeds 3~5.Experimental plot physical features is put down Smooth, soil is loam, middle fertility, pH value 7.2.Test medicine and dosage refer to table 11.Blank control separately is set, is often handled 4 times Repeat, per the ㎡ of cell 30, totally 64 cells, the random district's groups of cell arrange.Using conventional spray-on process, mu dispenser liquid 45kg.

Table 11 prevents and treats wheat weedses field control effectiveness test result

Table of field test results is bright, and above example of formulations has good prevention effect to wheatland broad leaved weed, and active ingredient is used Dose is sprayed 1 time by 500g/ hectares, reaches more than 95% to the average preventive effect of 30 days after wheat weedses medicine, hence it is evident that better than each The preventive effect of comparison medicament.By to 30 days significance difference analysis after medicine, pyraflufen-ethyl, florasulam and fluroxypyr or The different monooctyl ester combination of fluroxypyr is notable with other control treatment preventive effect othernesses.

Security survey：Observed during experiment, wheat growth safety, no poisoning phenomenon occur all reagent agents.

In summary, composition of the invention is to use three kinds of active component compound schemes, and its activity and herbicidal effect are not It is the simple superposition of each component activity, compared with existing unitary agent or binary built preparation, there is significant herbicidal effect, Synergistic effect is notable, can be with delaying drug resistance, and security is good, meets the security requirement of pesticidal preparations.

Claims (4)

1. A kind of 1. ternary weeding composition containing pyraflufen-ethyl, it is characterised in that：Active component is by pyraflufen-ethyl, florasulam and chlorine Fluorine pyrrole fluoroacetic acid or the different monooctyl ester composition of fluroxypyr, the percentage by weight that pyraflufen-ethyl accounts for the composition is 1%~10%, double The percentage by weight that penoxsulam accounts for the composition is 0.1~10%, and fluroxypyr or the different monooctyl ester of fluroxypyr account for The percentage by weight of the composition is 10~50%.
2. 2. the ternary weeding composition containing pyraflufen-ethyl according to claim 1, it is characterised in that：The combination dosage form is can WP, water dispersible granules, suspending agent, dispersible oil-suspending agent, microemulsion, suspension emulsion.
3. 3. purposes of the ternary weeding composition containing pyraflufen-ethyl on preventing and treating wheatland broad leaved weed according to claim 1.
4. 4. purposes according to claim 3, wheat weedses include broad leaved weed be clearvers, Veronica, chickweed, Descurainia sophia and Shepherd's purse.