KR19990039757A - Furasasulfuron herbicide for leaf and soil treatment - Google Patents

Abstract

The present invention is a herbaceous sulfonic herb for foliage and soil treatment, which makes it easy and efficient to control weeds by granifying the herbicidal active component of the furazulfuron system as a herbicide active ingredient. It is about granulation.

Flazasulfuron herbicide for the foliage and soil treatment according to the present invention, 0.01 to 0.5% by weight of the furasasulfuron-based herbicidal active ingredient, 0.5 to 10% by weight surfactant, 0 to 5% by weight binder, diffusion A powdery herbicidal composition comprising 0.5 to 10% by weight of the accelerator, 5 to 40% by weight of the auxiliary solid carrier and the residual amount of the solid carrier is granulated by a conventional extrusion molding machine.

Therefore, it is excellent in terms of convenience and external effects such as ease of use and prevention of intoxication of the worker, and it is possible to increase viability, and has an effect of providing a flazasulfuron herbicide for treating foliage and soil having low risk of weakening.

Description

Furasasulfuron herbicide for leaf and soil treatment

The present invention relates to a furazasulfuron herbicide for treating foliage and soil, and more particularly, to control weeds by granifying the herbicidal active component of flazasulfuron-based as a herbicide active ingredient and treating the soil. The present invention relates to a furasasulfuron herbicide for treating foliage and soil, which can be efficiently and efficiently treated.

With the improvement of living standards, such as sports facilities such as golf courses, soccer fields or baseball fields, horizontal dividers, and gardens installed in houses, the area of lawns for landscaping and amusement gradually increases, and the need for continuous management increases. The control of weeds on the lawn was a labor-intensive work, and its efficient management was absolutely necessary.

On the other hand, despite the increase in lawns to be managed, until now we have been using various electric mowing machines and improved sickle for weed control, and recently, various herbicidal active ingredients such as furasasulfuron have been developed. However, especially in the formulation of herbicides used in lawns, there is no significant improvement, and the formulation of the high concentration of the original agent developed as a herbicide active ingredient is commercially available as it is, and the user directly dilutes it with water and sprays it with a conventional nebulizer, or spray immediately. The main topic was to do this. In particular, herbicides containing the herbicidal active ingredient have a disadvantage in that the high concentration of the herbicidal active ingredient, when treated intensively, can not avoid the risk of weak rather than medicinal effects, therefore, the concentration of the herbicidal active ingredient in the formulation is specifically considered There is a need to do this. Moreover, the herbicidal active ingredient can seriously affect other plants and the surroundings, and even more attention should be paid to dilution. However, in conventional hydrating agents or powders, spraying or dispersing by dilution requires more labor. There was a downside. In addition, in the case of powder, there is a problem that the handler can be easily addicted by the influence of the wind during scattering, and the change over time during storage has to be considered essential for the development of the formulation. Because of the many restrictions, the situation is not far from the hydration and powder.

Therefore, there is a need to develop a new type of herbicide that can achieve excellent control effect and satisfy the viability during the treatment and storage stability of the herbicidal active ingredient.

SUMMARY OF THE INVENTION An object of the present invention is to provide a furasasulfuron herbicide for treating foliage and soil, which is easy to spread as a granule and is dispersed and transferred to foliage and soil by absorption of moisture to reduce the possibility of weakening.

Furazasulfuron herbicide for the foliage and soil treatment according to the present invention for achieving the above object, 0.01 to 0.5% by weight of the furazulfuron-based herbicidal active ingredient, 0.5 to 10% by weight surfactant, binder 0 The powdery herbicidal composition comprising the solid carrier as 5 to 5% by weight, 0.5 to 10% by weight of the diffusion accelerator, 5 to 40% by weight of the auxiliary solid carrier, and the balance is granulated by a conventional extrusion molding machine.

Hereinafter, the present invention will be described in detail with reference to specific examples.

Flazasulfuron herbicide for the foliage and soil treatment according to the present invention as a herbicidal active ingredient 0.01 to 0.5% by weight of the furasasulfuron-based herbicidal active ingredient, 0.5 to 10% by weight surfactant, binder 0 to 5% by weight, diffusion accelerator The powdery herbicidal composition comprising the solid carrier as 0.5 to 10% by weight, 5 to 40% by weight of the auxiliary solid carrier, and the remainder is granulated by a conventional extrusion molding machine.

The herbicidal active ingredient is particularly low in time stability, and in the present invention, the frazulfuron-based herbicidal active ingredient, which was mainly developed only as a hydrating agent or powder, was used in an amount of 0.01 to 0.5% by weight. Azimsulfuron (1- (4,6-dimethoxy-pyrimidin-2-yl) -3- [1-methyl-4- (2-methyl-2H-) together with furazulfuron-based herbicidal active ingredients tetrazol-5-yl) -pyrazol-5-yl-sulfonyl] urea), Bensulfuronmethyl; α- (4,6-dimeth-

oxypyrimidin-2-yl-carbamoylsulfamoyl) -o-toluidic acid), Cinosulfuron; 1- (4,6-dimethoxy-1,3,5-triazin-2-yl) -3- [2- (2 -methoxyethoxy)-

phenyl-sulfonyl] urea), Cyclosulfamuron; 1-{[2- (cyclopropyl

carbonyl) phenyl] sulfamoyl} -3- (4,6-dimethoxy-2-pyrimidinyl) urea), Imazosulfuron; 1- (2-chloroimidazo [1,2-α] pyridin-3-yl-sulfonyl -3- (4,6-

dimethoxy-pyridin-2-yl) urea), pyrazosulfuronethyl (Ethyl 5- (4,6-dimethoxypirimidin-2-yl-carbamoylsulfamoyl) -1-methylpyrazole-4-carboxylate), ethoxysulfuron; 3- (4,6-dimethoxypirimidin-2-yl) -1- (2-

ethoxyphenoxysulfonyl) urea), Benfuresate (2,3-dihydro-3,3-

dimethylbenzofuran-5-yl-ethanesulfonate) or herbicidally active ingredients selected from the group consisting of two or more thereof, or in addition to them, Simetryn (N ² , N ⁴ -diethyl-6-methylthio-1,3,5- triazine-2,4-diamine), mefenacet (2- (1,3-benzothiazol-2-yl-oxy) -N-methyl-acetanilide), molinate (s-ethylazepane-1-carbothioate Water-soluble pesticide active ingredient, poorly water-soluble pesticide active ingredient and non-water-soluble pesticide active ingredient can be used, including herbicidal active ingredients, etc., which have a great influence on physical and / or chemical properties such as formulation or solubility of the active ingredient of the pesticide itself. Can be used without receiving.

In the above, the surfactant is a substance having a high surface activity, and may be a positive lipophilic substance having hydrophilic and lipophilic molecular groups in the molecule, and has a washing power, dispersing power, emulsifying power, solubilizing power, wetting power, bactericidal power, foaming power, and penetration power. As the substances which are understood to have excellent properties, the liquid surfactant may be sulfonic acid salts such as polyoxyalkylene alkylaryl sulfonate or succinate salts such as polyoxyalkylene succinate or sodium dialkyl sulfosuccinate or Sodium benzoate and the like may be used alone or in combination, and all of them are exemplarily listed in the present invention, and those skilled in the art may select other suitable surfactants meeting the above-mentioned objects. It can of course be understood that It is. In the herbicidal granules of the present invention, the surfactant may be considered to play a role in allowing each component contained in the granules to easily disperse and transition to foliar or soil when the granules come into contact with moisture.

In the binder, the secondary solid carrier and the solid carrier described below, including the herbicidal active ingredient, bind to each other, and include starch, dextrin, carboxymethylcellulose, sodium polyacrylate, xanthan gum or a mixture of two or more thereof. One selected from the group consisting of can be used.

The diffusion promoter is a function of dispersing the granule itself by absorbing moisture from the outside so that the herbicidally active ingredients can be easily dispersed, including auxiliary solid carriers and solid carriers described below separately from the surfactant. Preferably, carbonates or phosphates of alkali metals such as soda ash, calcium carbonate, sodium phosphate, calcium phosphate and the like may be used.

In particular, the auxiliary solid carrier is used in combination with the surfactant to adsorb and powder the surfactant, and functions as a material forming the surface of the granule together with the surfactant and the solvent, and the auxiliary solid carrier is bentonite, One selected from the group consisting of calcium carbonate, pyropearlite, white carbon or a mixture of two or more thereof can be used.

The solid carrier comprises the sulfonylurea-based herbicidal active ingredient while forming the granule itself by occupying most of the granule of the present invention, and serves to reduce the possibility of weakness caused by the herbicidal active ingredient, mainly talc powder, etc. Conventional inorganic powders or inorganic salts such as ammonium sulfate, potassium chloride and the like may be used alone or in combination.

The herbicidal composition having the composition as described above is powdered according to a conventional granulation method, kneaded by adding 5 to 50% by weight of water with respect to the whole powdery herbicidal composition, and using a conventional granulator. It can be formed into granules and granulated by drying with a drier at 50 to 90 ° C.

In particular, during the granulation, the solid or powder herbicidal active ingredient may be used as it is or by grinding, and in the case of a liquid, it may be used after being adsorbed to an auxiliary solid carrier or the like, or else, if it is not easy to adsorb. An organic solvent may be used, and as the organic solvent, liquid paraffin oil, which is known to have good fluidity and is preferably environmentally friendly, does not contaminate the environment even in large quantities, may be used. Such granulation methods can be understood to be well known to those skilled in the art.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be understood as limiting the scope of the invention.

Example

0.15% by weight of furazasulfuron-based herbicidal active ingredient, 5.0% by weight of sodium dialkylsulfosuccinate as surfactant, 0.2% by weight of dextrin as binder, 0.5% by weight of soda ash as diffusion promoter, 25% bentonite as auxiliary solid carrier Talc powder was used as the solid carrier as weight% and residual amount, and the herbicidal active ingredient and the talc powder were mixed together and pulverized to have a particle size distribution in the range of 1 to 15 μm to form a premixture, which was used as a surfactant, a binder, A herbicidal composition is prepared by mixing with a diffusion accelerator and auxiliary solid carriers, kneading by adding about 15% by weight of water to the entire herbicidal composition, and using a conventional pelletizer in a particle size of 0.6 mm to 6,000 to 6,500. Molded to form a dog / g, and dried with a normal dryer using hot air at about 70 ° C It was completed the herbicidal granules according to the invention.

Comparative Examples 1 to 3

As comparative examples, the conventional furazulfuron hydrous (comparative example 1), lonpa (comparative example 2), and vanbell (comparative example 3) as commercially available commercial products were purchased and used for control tests. Comparative examples were used based on the dosage of the specifications provided by the manufacturer.

Drug efficacy test

The paved area was 4.5m ² (1.5m * 3m) and cultivated so that the grass was 5cm in length according to the golf course lawn cultivation method, and the soil moisture was adjusted by watering by sprinkler, Table 1 (20 days after treatment) , Test results) and table 2 (40 days after treatment, drug efficacy test results) by treatment with the drug amount as described in the month 0-9, the drug efficacy was determined based on 0 to 100. The irradiation date was evaluated by the 20 days and 40 days after treatment, respectively, and the results are shown in Table 1 and Table 2, respectively.

20 days after treatment, test results standard(%) Treatment amount (/ 10a) Processing time Weak Moon effect (0 to 100) River pool wire grass pigweed Horsetail Cell shamrock Example 1 0.15 6 kg Grass growing 0.3 90.7 90.7 98.3 100 93.3 - Comparative Example 1 10 50 g Grass growing 2.5 99 99.3 100 100 99.3 - Comparative Example 2 50 3L Grass growing 0.5 44 46.7 70 80 15 40 Comparative Example 3 48.2 200 mL Grass growing 0 46.7 60 100 100 51.7 - No treatment 27cm13 book 16cm12 book 10cm1 book 17cm3 book 19cm3 book 9cm0.5 book Weed situation during processing 7cm3 leaf 4 cm 4 leaf 4 cm 12cm4 leaf 3 cm Strong Grass = Puppy Grass, Cytoblast = Cytoblast

40 days after treatment, test results standard(%) Treatment amount (/ 10a) Processing time Weak Moon effect (0 to 100) River pool wire grass pigweed Horsetail Cell shamrock Example 1 0.15 6 kg Grass growing 0 84 91 100 80 100 100 Comparative Example 1 10 50 g Grass growing 0.2 97.3 100 100 96.7 100 100 Comparative Example 2 50 3L Grass growing 2.3 - - - - - - Comparative Example 3 48.2 200 mL Grass growing 0 31.7 45 100 80 20 100 Strong Grass = Puppy Grass, Cytoblast = Cytoblast

As shown in Table 1 and Table 2, when used in accordance with the manufacturer's recommended dosage, based on the use of the enemy, in terms of the weakness according to the present invention is less harmful than the conventional formulations appearing in the comparative examples In terms of efficacy, it was confirmed that they appear to be superior or similar to the existing formulations.

Cyanide test

The herbicides according to the present invention were sealed and packaged in a silver foil bag at 50 g and stored in a thermostat maintained at a temperature of 40 ° C. ± 2 ° C., samples were taken over time, and each component was quantitatively analyzed according to the process analysis method. The results are shown in Table 3 below.

% Change by parking Early 4 weeks Week 8 Week 12 Example 1 - 1.8 3.1 4.1

As shown in Table 3, there was almost no change over time even at a slightly higher temperature than the domestic maximum annual temperature, and thus it was confirmed that it can be stored stably in the long term.

As a result of the synthesis of the above embodiments, the herbicidal granules according to the present invention are in contact with the target weed leaf surface or ground in the early stage of growth and absorb moisture in the dew and air to be transferred to the roots through the leaf surface or soil, and exhibit even dispersion effect. It was confirmed that the final weed control effect can be sufficiently exhibited, and it is possible to keep the herbicide active ingredient stably for a long time without noticeable change over time, and above all, it is possible to control the weeds without the occurrence of serious weakness by simple dispersion. I could confirm it.

Moreover, the herbicidal granules according to the present invention may be prepared by utilizing existing manufacturing facilities as they are, and in particular, have high time stability against herbicidally active ingredients such as flaxasulfuron, which have a lot of limitations in the development of formulations due to the nature of the active ingredients. In addition, it is confirmed that it is economically advantageous to provide a herbicidal agent capable of viability.

Therefore, according to the present invention, it is excellent in convenience and ease of use and prevention of worker's poisoning and external effects, and it is possible to increase viability, and to provide flazasulfuron herbicide for treating foliage and soil having low risk of weakening. There is.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

Claims (6)

As the herbicidal active ingredient, 0.01 to 0.5% by weight of the furazasulfuron herbicidal active ingredient, 0.5 to 10% by weight of surfactant, 0 to 5% by weight of binder, 0.5 to 10% by weight of diffusion accelerator, 5 to 40% by weight of auxiliary solid carrier and residual amount Furazasulfuron herbicide for the foliage and soil treatment, characterized in that the granular herbicidal composition comprising a solid carrier as a granulation in a conventional extrusion molding machine. The method of claim 1, The herbicidal active ingredient is azillasulfuron, bensulfuronmethyl, cynosulfuron, cyclosulfamuron, imazosulfuron, pyrazosulfuronethyl, ethoxysulfuron together with the furazasulfuron herbicidal active ingredient or the furazasulfuron herbicidal active ingredient. , Furazasulfuron herbicide for treating foliage and soil, characterized in that it is selected from the group consisting of benfurate, simethrin, mefenacet, molinate or a mixture of two or more thereof. The method of claim 1, The surfactant is characterized in that the sulfonic acid salt such as polyoxyalkylene alkylaryl sulfonate, succinate salt such as polyoxyalkylene succinate or sodium dialkyl sulfosuccinate or sodium benzoate or the like alone or in combination. Furazasulfuron herbicide for treating the foliage and soil. The method of claim 1, Furazasulfuron herbicide for the foliage and soil treatment, characterized in that the binder is selected from the group consisting of starch, dextrin, carboxymethyl cellulose, sodium polyacrylate, xanthan gum or a mixture of two or more thereof. The method of claim 1, The follizasulfuron herbicide for treating foliage and soil, characterized in that the diffusion promoter is selected from the group consisting of carbonates or phosphates of alkali metals such as soda ash, calcium carbonate, sodium phosphate, calcium phosphate and the like. The method of claim 1, Furazasulfuron herbicide active ingredient 0.05 to 0.1% by weight, surfactant 1 to 5% by weight, binder 0.2 to 1% by weight, diffusion promoter 0.5 to 1% by weight, auxiliary solid carrier 20 to 30% by weight and residual amount Furazasulfuron herbicide for the foliage and soil treatment, characterized in that the granular herbicidal composition comprising a solid carrier as a granulation in a conventional extrusion molding machine.