CN103125505B - Dispersible oil suspending agent containing florasulam and MCPA-isooctyl - Google Patents
Dispersible oil suspending agent containing florasulam and MCPA-isooctyl Download PDFInfo
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- CN103125505B CN103125505B CN201310083527.0A CN201310083527A CN103125505B CN 103125505 B CN103125505 B CN 103125505B CN 201310083527 A CN201310083527 A CN 201310083527A CN 103125505 B CN103125505 B CN 103125505B
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Abstract
The invention discloses a dispersible oil suspending agent containing florasulam and MCPA-isooctyl. The dispersible oil suspending agent comprises effective active ingredients, namely florasulam and MCPA-isooctyl, a dispersing agent, an emulsifier, a wetting agent, a thickening agent, a stabilizing agent, a defoaming agent, a synergistic agent and plant oil. According to the dispersible oil suspending agent, a scheme of blending two effective active ingredients is adopted, control effect of mixing two effective active ingredients is better than that of a single effective active ingredient, and the dispersible oil suspending agent has a synergistic effect. The prepared dispersible oil suspending agent has the weeding effect obviously better than that of other dosage forms and also has good control effect to various broad leaf weeds in a wheat field, control cost can be reduced, safety to crop is good, and safety requirements to pesticide preparation are met.
Description
Technical field
The present invention relates to a kind of by florasulam and two kinds of active components of the 2 first different monooctyl esters of 4 chlorine, formed dispersible oil-suspending agent, belong to technical field of compounded pesticide.
Background technology
Dispersibling oil-suspending agent is to be dispersion medium with vegetable oil, environmentally friendly, is watered and is sprayed at adhesivity after plant surface, plate-out ability and good penetrability, resistance of rainwater washing against, the lasting period is long, thereby improves agricultural chemicals availability, play synergistic effect, can reduce effective ingredient consumption, cost-saving.
Florasulam, has another name called Mai Shida, English common name Florasulam, chemical name: 2', 6'-bis-fluoro-5-ethyoxyl-8-fluorine [1,2,4] triazoles [1,5-C] pyrimidine-2-sulfonanilide.Florasulam is triazolopyrimidine sulfonamides super-high-efficient weed killer herbicide, is mainly used in preventing and treating wheat paddock broad leaved weed, as clearvers, chickweed, corn gromwell etc. are had to good preventive effect, but general to broadcasting the preventive effects such as ma wormwood artemisia, shepherd's purse, alone slow to weeds drug effect, herbicide is not thorough, has demutation phenomenon.
The different monooctyl ester of 2 first 4 chlorine, English common name MCPA-isooctyl, chemical name: the different monooctyl ester of methoxone.For hormone-type selective herbicide, there is stronger interior suction conductivity, wheat paddock being broadcast to the broad leaved weeds such as ma wormwood artemisia, shepherd's purse has good preventive effect.Shortcoming is the easy demutations of alone weeds, as strengthened consumption, uses, dangerous to wheat.
3.5 hundred million mu of wheat areas are planted throughout the year by China, are only second to paddy rice.Wheat is from after planting being endangered by various broad leaved weeds often to results, chemical control wheat weeds is the most effective means.According to inventor, at the main growing area of wheat, investigated in recent years, find Hebei Province shepherd's purse, broadcast ma wormwood artemisia, the clearvers in Henan, the ox chickweed in Jiangsu, chickweed occur serious, and resistance is serious, above-mentioned florasulam, the different monooctyl ester single dose of 2 first 4 chlorine all can't resolve the problems referred to above, strengthen consumption and also easily produce poisoning, and a kind of herbicidal effect of urgent need invention is good, drug cost is low, the weed killer herbicide of safety nuisance free.
Summary of the invention
The object of the present invention is to provide a kind of component reasonable, synergistic effect is remarkable, and herbicidal effect is good, and drug cost is low, the oil-suspending agent that dispersibles containing florasulam and the different monooctyl ester of 2 first 4 chlorine to crop safety.
Another object of the present invention is to provide the above-mentioned application of oil-suspending agent in control weeds of wheat that dispersible, to be applied in especially weeds of wheat be shepherd's purse, chickweed or broadcast in ma wormwood artemisia.
Implementation procedure of the present invention is as follows:
Containing the oil-suspending agent that dispersibles of florasulam and the different monooctyl ester of 2 first 4 chlorine, its component and weight percentage are as follows:
Florasulam 0.2～2%
The different monooctyl ester 20～50% of 2 first 4 chlorine
Dispersant 1～8%
Emulsifier 5～15%
Wetting agent 0.5～3%
Thickener 0.5～8%
Stabilizing agent 0.5～8%
Defoamer 0.2～2%
Synergist 0.1～3%
Vegetable oil surplus
Described dispersant is that polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), the HUNTSMAN of TERSPERSE 2020(U.S. Huntsman Corporation are produced, alkyl naphthalene sulfonic acid salt) in one or more;
Described emulsifier is BY(castor oil polyoxyethylene ether) serial emulsifier (BY-110, BY-125, BY-140), Nongru-700 #(common name: alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this dish-60#(common name: sorbitan monostearate), Tween-60 #(common name: sorbitan monostearate APEO), agriculture breast 1601#(common name: phenethyl phenol polyoxyethylene poly-oxygen propylene aether), TERSPERSE 4894(U.S. Huntsman Corporation product) one or more in,
Described wetting agent is one or more in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500;
Described thickener is one or more in white carbon, polyvinyl alcohol, bentonite, xanthans, aluminium-magnesium silicate, carboxymethyl cellulose;
Described stabilizing agent is one or more in epoxychloropropane, tributyl phosphate, triphenyl phosphite, Sodium Benzoate, epoxidized soybean oil, butylated hydroxy anisole;
Described defoamer is silicone defoaming agent;
Described synergist is one or more in triacontanol, methyl α-naphthyl acetate, amino-oligosaccharide;
Described vegetable oil is one or more in soybean oil, rapeseed oil, cottonseed oil, palm oil, linseed oil, turpentine oil, corn oil, methyl oleate.
The above-mentioned preparation method who dispersibles oil-suspending agent containing florasulam and the different monooctyl ester of 2 first 4 chlorine: active ingredient florasulam, the different monooctyl ester of 2 first 4 chlorine are mixed with dispersant, emulsifier, wetting agent, thickener, stabilizing agent, defoamer, vegetable oil, through shearing, disperse 20～30 minutes, sand mill sand milling 2～3 hours, particle diameter is below 5 microns.
Inventor is through a large amount of indoor virulence screenings, pharmaceutical formulation test and field control effectiveness test, discovery is mixed with florasulam and the different monooctyl ester of 2 first 4 chlorine by a certain percentage and dispersibles oil-suspending agent, said preparation dispersibles the advantage of oil-suspending agent except having routine, owing to having added synergist, can solve the problem of wheat main producing region field resistance weeds, there is obvious synergistic effect, can reduce use cost, high to crop safety.
The present invention adopts two kinds of effective active compositions scheme that is mixed, and activity when preventive effect is better than using separately, has synergistic effect.Be mixed with and dispersible oil-suspending agent owing to having added synergist, also have synergistic effect, two technology, in conjunction with bringing out the best in each other, have dual synergistic effect.Itself does not have activity of weeding synergist, belongs to plant growth regulator, and it can be grown by Promoting plant growth, relieving herbicide poisoning, and synergy principle is to promote the absorption of weeds to herbicidal active component.The present invention has good control efficiency to all kinds of broad leaved weeds between wheat paddock, has particularly solved China's wheat main producing region wheat paddock shepherd's purse, has broadcast the problem that the resistant weeds such as ma wormwood artemisia, clearvers, chickweed are difficult to prevent and kill off.Can reduce cost accounting, good to crop safety, meet the security requirement of pesticidal preparations.
Embodiment
Below in conjunction with embodiment, content of the present invention is described further.
FORMULATION EXAMPLE 1
Taking 0.4% florasulam, the 39.6% 2 different monooctyl esters of first 4 chlorine, 2% TERSPERSE 2020(U.S. Huntsman Corporation produces), 4% this dish-60#, 3% Tween-60 #, 3% agriculture breast 2201#, 3% Nongru-700 #, 1% TERSPERSE 2500(U.S. Huntsman Corporation produce), s-29 Nanjing "four news" (new ideas applied chemistry product company product), 1% triacontanol, methyl oleate add to 100% weight portion 0.5% white carbon, 2% epoxychloropropane, 0.5% silicone defoaming agent (trade name:.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, is less than 5 microns makes the different monooctyl ester of 40% florasulam 2 first 4 chlorine and dispersible oil-suspending agent with sand mill sand milling to particle diameter.
FORMULATION EXAMPLE 2
Take 0.2% florasulam, the different monooctyl ester of 50%2 first 4 chlorine, 2% dispersing agent NNO, 3% agriculture breast 2201#, 10% BY-110,1%TERSPERSE 2500,1% aluminium-magnesium silicate, 1.5% butylated hydroxy anisole, 0.6% L-1000 silicone defoaming agent (Shanghai Li Qi auxiliary chemicals Co., Ltd product), 2.5% methyl α-naphthyl acetate, soybean oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 20min, is less than 5 microns makes the different monooctyl ester of 50.2% florasulam 2 first 4 chlorine and dispersible oil-suspending agent with sand mill sand milling to particle diameter.
FORMULATION EXAMPLE 3
Take 2% florasulam, the different monooctyl ester of 20%2 first 4 chlorine, 3% sodium lignin sulfonate, 2% agriculture breast 2201#, 10% BY-125,1% alkylphenol polyoxyethylene phosphate, 1% xanthans, 2% Sodium Benzoate, 0.5% silicone defoaming agent, 0.5% triacontanol, rapeseed oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 25min, is less than 5 microns makes the different monooctyl ester of 22% florasulam 2 first 4 chlorine and dispersible oil-suspending agent with sand mill sand milling to particle diameter.
FORMULATION EXAMPLE 4
Taking 0.5% florasulam, the 40% 2 different monooctyl esters of first 4 chlorine, 2% TERSPERSE 4894(U.S. Huntsman Corporation produces), 4% agriculture breast 1601#, 3% Tween-60 #, 3% Nongru-700 #, 1.5% phenethyl phenol polyethenoxy base ether phosphate, 0.5% bentonite, 2% tributyl phosphate, 0.5% silicone defoaming agent, 2% amino-oligosaccharide, 2% corn oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, is less than 5 microns makes the different monooctyl ester of 40.5% florasulam 2 first 4 chlorine and dispersible oil-suspending agent with sand mill sand milling to particle diameter.
FORMULATION EXAMPLE 2-4 detects and all meets the requirements according to These parameters.
Biological Examples 1 florasulam and the different monooctyl ester of 2 first 4 chlorine are mixed to weeds of wheat Toxicity Determination.
Subjects is respectively wheat paddock resistant weed chickweed, shepherd's purse, broadcasts ma wormwood artemisia.Former medicine is mixed with to the test medicine needing, test method is with reference to the agricultural industry criteria NY/T1155.7-2006 of < < People's Republic of China (PRC) farm-chemical indoor determination test rule weed killer herbicide the 7th part: > > is measured in the synergy being mixed.First single dose and each Mixed Pharmacy are arranged to 5 variable concentrations gradients.If clear water contrast, repeats 4 times.Spray-on process after employing seedling, get ready in advance for examination weeds seedling and (by 50 weed seeds of every alms bowl, be sowed in test basin alms bowl, by the time grow to fixed 40 strains of every alms bowl during the phase of 3 leaves), the medicament having diluted is evenly sprayed onto on weeds plant with laryngeal spray, to be evenly thoughtfully as the criterion, after insert greenhouse and normally cultivate, process the rear preventive effect of calculating each chemicals treatment for 21 days by ocular estimate, by the linear regression analysis between the probit value of preventive effect and the logarithm value of series concentration, obtain the ED of each medicament
50value, with the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun mixture, evaluates the activity of reagent agent to weeds with this.
The co-toxicity coefficient of complex preparation (CTC) >=120 shows as synergistic effect; CTC≤80 show as antagonism; 80 < CTC < 120 show as summation action.
Toxicity Determination result shows: florasulam and the different monooctyl ester of 2 first 4 chlorine in table 2-1,2-2,2-3 using dosage mixed with ratio to chickweed, shepherd's purse, broadcast ma wormwood artemisia and have good virulence, all there is good synergistic effect, especially remarkable with the synergy that is mixed of the 40% florasulam 2 first different monooctyl esters of 4 chlorine (0.4%+39.6%).
Biological Examples 2 eliminating weed in wheat field field control effectiveness tests
Inventor has carried out the different monooctyl ester of FORMULATION EXAMPLE 1(40% florasulam 2 first 4 chlorine and has dispersibled oil-suspending agent in Zhouzhi County, 27 in December, 2012 Shaanxi Province) eliminating weed in wheat field field control effectiveness test, with the different monooctyl ester of 40% florasulam 2 first 4 chlorine, dispersible oil-suspending agent (conventional formulation, containing synergist) and common other formulation suspending agent of identical component, identical proportioning content, suspension emulsion, water dispersible granules, microemulsion medicament in contrast, by inventor, adopt conventional auxiliary agent, conventional method to prepare.During test, wheat 2-3 is tillered, and shepherd's purse, chickweed, broadcasts the broad leaved weed 3-5 sheet leaves such as ma wormwood artemisia.Test medicine and dosage refer to table 3.Take spray clear water as contrast (CK).Repeat for 4 times, random district group is arranged, community area 20 ㎡.Adopting the electronic knapsack sprayer of mark standing grain board to carry out cauline leaf spraying, is 30kg/667 ㎡ by amount of liquid medicine.
Investigation and statistical method:
After medicine 7,14,21d observes the growing state of wheat seedling in each community.21d after medicine, every community is got 4 points at random, every 0.25 ㎡, weeds strain number in point is recorded in investigation, and calculates preventive effect.
Preventive effect (%)=(blank district number of weeds-treatment region number of weeds)/number of weeds * 100, blank district.
Test results and analysis: the different monooctyl ester of 40% florasulam 2 first 4 chlorine dispersibles oil-suspending agent (FORMULATION EXAMPLE 1) by 30g/667 ㎡, 35g/667 ㎡, 40g/667 ㎡ consumption, carrying out cauline leaf spraying processes, after medicine 21 days to weeds of wheat shepherd's purse, chickweed, broadcast ma wormwood artemisia and all have good preventive effect, average preventive effect is more than 95.6%, under Isodose, be obviously better than the preventive effect that the different monooctyl ester of 40% florasulam 2 first 4 chlorine dispersibles oil-suspending agent (not containing synergist) and other 4 kinds of formulations of the different monooctyl ester of 40% florasulam 2 first 4 chlorine, compared with (30g/667 ㎡) under low dosage, also than other, contrast medicament 35g/667 ㎡ consumption herbicidal effect superior (in Table 3).
After medicine 7,14,21d observes, the community that FORMULATION EXAMPLE 1 is processed does not find that the dead seedling of wheat, blade yellow, growth are subject to the poisoning phenomenons such as stagnant.After other chemicals treatment community medicine there is slight jaundice in 7 days part wheat leaf blades, and after medicine, 14 days slight yellowing phenomenons of wheat leaf blade recover gradually, and after medicine, 21 days wheats recover normal completely.After being described, interpolation synergist can avoid using the poisoning that weed killer herbicide produces wheat.
Claims (3)
1. containing the oil-suspending agent that dispersibles of florasulam and the different monooctyl ester of 2 first 4 chlorine, it is characterized in that component and weight percentage are as follows:
Florasulam 0.2～2%
The different monooctyl ester 20～50% of 2 first 4 chlorine
Dispersant 1～8%
Emulsifier 5～15%
Wetting agent 0.5～3%
Thickener 0.5～8%
Stabilizing agent 0.5～8%
Defoamer 0.2～2%
Synergist 0.1～3%
Vegetable oil surplus
Described dispersant be in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE 2020 one or more;
Described emulsifier is one or more in BY series emulsifier, Nongru-700 #, agriculture breast 2201, this dish-60#, Tween-60 #, agriculture breast 1601#, TERSPERSE 4894;
Described wetting agent is one or more in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500;
Described thickener is one or more in white carbon, polyvinyl alcohol, bentonite, xanthans, aluminium-magnesium silicate, carboxymethyl cellulose;
Described stabilizing agent is one or more in epoxychloropropane, tributyl phosphate, triphenyl phosphite, Sodium Benzoate, epoxidized soybean oil, butylated hydroxy anisole;
Described defoamer is silicone defoaming agent;
Described synergist is one or more in triacontanol, methyl α-naphthyl acetate, amino-oligosaccharide;
Described vegetable oil is one or more in soybean oil, rapeseed oil, cottonseed oil, palm oil, linseed oil, turpentine oil, corn oil, methyl oleate.
2. described in claim 1, containing florasulam and the different monooctyl ester of 2 first 4 chlorine, dispersible the application of oil-suspending agent in control weeds of wheat.
3. application according to claim 2, weeds of wheat is shepherd's purse, chickweed or broadcasts ma wormwood artemisia.
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| CN103444728B (en) * | 2013-08-01 | 2016-05-11 | 广东中迅农科股份有限公司 | A kind of composition that contains florasulam and phenoxy carboxylic acid herbicides |
| CN103503893A (en) * | 2013-09-12 | 2014-01-15 | 广东中迅农科股份有限公司 | Herbicide composition containing florasulam and 2,4-butyl ester |
| CN103783051B (en) * | 2014-02-26 | 2016-01-27 | 江苏富鼎化学有限公司 | A kind of mixed herbicide containing florasulam, azoles humulone and methoxone |
| CN105076132B (en) * | 2015-06-11 | 2017-07-18 | 中国农业大学 | A kind of oil type agricultural chemicals synergist and preparation method thereof |
| CN106665611A (en) * | 2016-12-03 | 2017-05-17 | 安徽丰乐农化有限责任公司 | Postemergence weeding composition containing 2-methyl-4-chloro-phenoxyacetic acid isooctyl, florasulam and terbuthylazine for millet seedling |
| CN106942246A (en) * | 2017-04-17 | 2017-07-14 | 武鸣县南方制绳厂 | It is a kind of for herbicide of sisal hemp and preparation method thereof |
| CN107668047A (en) * | 2017-09-27 | 2018-02-09 | 陕西上格之路生物科学有限公司 | A kind of ternary weeding composition containing pyraflufen-ethyl |
| CN111838156A (en) * | 2020-08-24 | 2020-10-30 | 安徽华星化工有限公司 | Herbicide composition containing triacontanol and preparation method and application thereof |
| CN116897942A (en) * | 2023-07-19 | 2023-10-20 | 青岛恒宁生物科技有限公司 | A kind of herbicidal composition containing flusulam and fluopyridine and its application |
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