CN1091895A - Granular pesticide - Google Patents

Abstract

By using average weight---the finely divided mineral dust that particle diameter is at least 15 μ m prepares the granule that contains agricultural chemicals.

Description

Granular pesticide

The present invention relates to contain the granule of agricultural chemicals, more particularly, relate to the improvement that contains agricultural chemicals granule, it can improve the eluting rate of active component.

Up to the present adopted finely divided mineral dust as be used for granular pesticide, especially for the carrier of the granular pesticide in rice field, the average weight-particle diameter of the finely divided mineral dust of employing at number μ m to about 10 mu m ranges.

Still leaving over an an open question still at present, promptly in fact, when above-mentioned existing granule is applied to the rice field, the active component of desired amount can't be eluted to wherein satisfactorily, the result, this granule can not be effective as the pesticide control pest.

Now the inventor has successfully found the new granular pesticide that can address the above problem.

That is, the invention provides the granule that contains agricultural chemicals for preparing by the mineral dust that is at least 15 μ m with average weight-particle diameter.

Astoundingly, compare with the conventional granulates agent, the granular pesticide of the present invention that is at least the mineral dust preparation of 15 μ m with average weight-particle diameter herein can promote the eluting rate of the active component that wherein contains significantly, the result, can accurately and in time discharge the active component of aequum to the rice field water surface, with the pest of control in this existence.

In the granular pesticide of the present invention, the average weight-particle diameter of mineral dust can be selected from 15-40 μ m, and is preferably 20-30 μ m especially.

Granular pesticide of the present invention mainly contains mineral dust and the surfactant that pesticide activity component, average weight-particle diameter are at least 15 μ m, if desired, also comprises adjuvant for example sticker, colouring agent etc.

Production method of granular pesticides of the present invention can adopt conventional method, and active component is mixed with particle, and wherein when these particles of compacting, the mineral dust that adopts average weight particle-diameter to be at least 15 μ m is mixed with agent with it.

The reactive compound that uses among the present invention comprises pesticide activity components that all use in the rice field, can be specifically insecticide, fungicide, weed killer herbicide, plant growth regulator etc. with and composition thereof.

The specific embodiment of mentioning herein for example has:

Insecticide:

O, O-dimethyl-O-3,5,6-trichloro-2-pyridyl thiophosphate,

(RS)-2,2-two chloro-1-(4-ethoxyphenyls) cyclopropane-carboxylic acid (RS)-alpha-cyano-3-phenoxybenzyl ester,

The 2-(4-ethoxyphenyl)-2-methyl-propyl-3-phenoxy group-benzylic ether,

S, S '-[the 2-(dimethylamino) trimethylene] two (thiocarbamates),

N, N-dimethyl-1,2,3-trithiane-5-base amine,

2-tert-butyl imino group-3-isopropyl-5-phenyl-3,4,5,6-tetrahydrochysene-2H-1,3,5-thiadiazine-4-ketone,

1-(6-chloro-3-pyridylmethyl)-N-nitro-imidazolidine-2-ylidene amines,

N-cyano group-N-(2-chloro-5-pyridylmethyl)-N '-methyl acetyl-amizine,

1-[N-(6-chloro-3-pyridylmethyl)-the N-ethylamino]-1-methylamino-2-nitroethylene,

1-(2-chloro-5-pyridylmethyl)-5-methyl-2-nitro imino group-six hydrogen-1,3,5-triazines,

1-(2-chloro-5-thiazolyl methyl)-3,5-dimethyl-2-nitro imino group-six hydrogen-1,3,5-triazines,

1-(2-chloro-5-pyridylmethyl)-3,5-dimethyl-2-nitro imino group-six hydrogen-1,3,5-triazines,

1-(2-chloro-5-pyridylmethyl)-2-Nitromethylene-imidazolidine, etc.,

Fungicide:

O, O-diisopropyl-S-dibenzylsulfide substituted phosphate,

α, α, α-three fluoro-3 '-different third oxygen-O-N-is to toluyl aniline,

N-(2-methoxy acetyl group)-and N-(2, the 6-xylyl)-DL-alanine methyl ester,

N-(R)-[the 1-(4-chlorphenyl)-ethyl]-2, the mixture of 2-two chloro-1-ethyls-3t-methyl isophthalic acid r-cyclopropane-formamide diastereoisomer,

The N-[1-(4-chlorphenyl)-and ethyl]-2,2-two chloro-1-ethyls-3-methyl cyclopropane formamide,

N-(R)-[the 1-(4-chlorphenyl)-ethyl]-2,2-two chloro-1-isopropyl cyclopropane carboxamides,

N-(R)-[the 1-(4-chlorphenyl)-ethyl]-(1S)-2,2-two chloro-1-ethyls-3t-methyl isophthalic acid r-cyclopropane carboxamide,

3-allyloxy-1,2-benzisothiazole-1,1-dioxy diisopropyl-1,3-dithiolane-2-subunit malonate,

The 5-methyl isophthalic acid, 2,4-triazol [3,4-b] benzothiazole,

1,2,5, the 6-nafoxidine is [3,2,1-ij] quinoline-4-ketone also, etc.;

Weed killer herbicide:

4,5-dichloro thiazol-2-yl oxygen base-N-methyl phenylacetamide,

6-Lv benzoxazole-2-base oxygen base-N-methyl-N-acetyl (2-aminotoluene),

6-Lv benzoxazole-2-base oxygen base-N-methyl-N-acetyl (3-methylaniline),

5-chloro-4-cyano thiazole-2-base oxygen base-N-methyl phenylacetamide,

6-Lv benzoxazole-2-base oxygen base-N-isopropyl-N-acetyl (3-methylaniline),

7-chloro benzothiazole-2-base oxygen base-N-methyl phenylacetamide,

2-[4-morpholinodithio-2-base oxygen base-N-methyl phenylacetamide,

N-2-biphenyl sulfonyl N '-(4,6-dimethoxy-1,3,5-triazines-2-yl) urea,

5-[3-(4,6-dimethoxypyridin-2-yl) ureido sulfuryl]-1-methylpyrazole-4-carboxylic acid ethyl ester,

2-[3-(4,6-dimethoxypyridin-2-yl) the urea groups sulfonymethyl]-benzoic acid methyl ester,

3-(4,6-dimethoxy-1,3,5-triazines-2-yl)-the 1-[2-(2-methoxy ethoxy)-benzenesulfonyl] urea,

N-(2-chlorine imidazo [1,2-a] pyridin-3-yl-sulfonyl)-N '-(4,6-dimethoxy-2-pyrimidine radicals) urea,

N '-(4,6-dimethoxypyridin-2-yl)-N " (4-aminomethyl phenyl sulfuryl amino)-N ' ' '-(4-carbethoxyl group-1-methylpyrazole-5-base-sulfonyl) guanidine,

Right-toluenesulfonic acid 4-(2,4-dichloro-benzoyl base)-1,3-dimethyl pyrazole-5-base ester,

2-[4-(2,4-dichloro-benzoyl base)-1,3-dimethyl pyrazole-5-yl] Acetolon,

2-[4-(2, between 4-two chloro--toluyl groups)-1,3-dimethyl pyrazole-5-base oxygen base]-the 4-methyl acetanilide,

2-(betanaphthyl oxygen base) N-propionanilide,

(RS)-2-(2, between 4-two chloro--toloxyl)-the N-propionanilide,

2, two (the ethylamino)-6-(methylaminos of 4-)-1,3,5-triazines,

2-ethylamino-4-(1,2-dimethyl propylene amino)-6-methyl sulfenyl-1,3,5-triazines,

Diethylamino bamic acid S-is to the benzyl chloride ester,

Piperidines-1-thiocarboxylic acid S-1-methyl isophthalic acid-phenylethylester,

1, the amino bamic acid S-of 2-dimethyl propyl (ethyl) benzyl ester,

6-methoxyl group-2-pyridine radicals (methyl) thiocarbamic acid O-3-tert-butyl phenylester,

2,4,6-trichlorophenyl-4 '-nitrobenzophenone ether,

2,4 dichloro benzene base-3 '-methoxyl group-4 '-nitrobenzophenone ether,

(RS)-and 2-bromo-N-(α, α-Er Jiajibianji)-3,3-dimethylbutyl acid amides,

1-(α, α-Er Jiajibianji)-and 3-is right-tolyl urea, etc.

The example of the mineral dust that uses among the present invention can be kaolinite, pyrophyllite, cerussite, bentonite, calcium carbonate powder, acid clay, diatomite, talcum powder and manufactured goods thereof, etc.

The surfactant that uses among the present invention can be as: alkylbenzenesulfonate, alkylnaphthalene sulfonate, alkylphosphonic, polyoxyethylene alkyl ether, fatty acid glyceride, sorbitan fatty acid esters, alkyl sulfo succinate, lignin sulfonate, naphthalenesulfonate formaldehyde condensation compound, alkylammonium salt, alkylamine salt, alkyl glycinate, alanine salt, siloxane polymer series activating agent, alkylallyl sulfonate, polyoxyethylene alkyl phenyl ether sulfonate sodium, etc.

And the example of the sticker that uses among the present invention can be PVA, polyvinyl acetate, polyacrylic resin, dextrin, modification dextrin, carboxyl alkyl cellulose salt, carboxyalkyl sugar, lignin carbonate, etc.

The colouring agent that uses among the present invention can be inorganic pigment, and for example iron oxide, titanium oxide and Prussia orchid and organic dyestuff such as alizarin dyes, azo dyes or metal phthalocyanine dyestuff and trace are nontoxic as iron, manganese, boron, copper, cobalt, molybdenum and zinc or their salt.

The active component that uses in granular pesticide of the present invention, finely divided powder, surfactant and adjuvant should not be limited to the above-mentioned example of mentioning.

Granular pesticide of the present invention contains the active component (compound) of 0.01 to 95% weight ratio, preferred 0.05 to 60% weight ratio usually.But above-mentioned scope will change according to various conditions.

Following, will be with mode specific explanations the present invention of embodiment, but these embodiment do not constitute limitation of the scope of the invention.

Experimental example 1

The elution test of active component.

The preparation of granule:

Mix each following composition of this paper, and be squeezed into granule, have the sieve that the net diameter is 1.5mm on the squeezer by horizontal squeezer.With the dry so particle of extruding of heat-air dryer, obtain grain products then.

No. 1 granule prescription of the present invention (composition):

2-[4-morpholinodithio-2-base oxygen base-N-methyl-N-

Antifebrin (compd A) 10% weight ratio

Bentonite powder 30% weight ratio

Polyoxyethylene alkyl phenyl ether sulfonate sodium 5% weight ratio

Calcium carbonate

(average weight-particle diameter is 25 μ m) 55% weight ratio

No. 2 granule prescriptions of the present invention (composition):

Compd A 10% weight ratio

Bentonite powder 30% weight ratio

Calcium carbonate

(average weight-particle diameter is 15 μ m) 60% weight ratio

No. 1 granule prescription (composition) of contrast:

Compd A 10% weight ratio

Bentonite powder 30% weight ratio

Calcium carbonate

(average weight-particle diameter is 9 μ m) 60% weight ratio

No. 2 granule prescriptions (composition) of contrast:

Compd A 10% weight ratio

Bentonite powder 30% weight ratio

Calcium carbonate

(average weight-particle diameter is 6 μ m) 60% weight ratio

No. 3 granule prescriptions (composition) of contrast:

Compd A 10% weight ratio

Bentonite powder 30% weight ratio

Calcium carbonate

(average weight-particle diameter is 11 μ m) 60% weight ratio

Measure average weight-particle diameter (particle size) with the laser diffraction type granulometer.

Test method

Above-mentioned each granule (50mg) is placed in the beaker that contains distilled water (2000ml) of 25 ℃ of insulations, after this, from beaker, remove part water at one, three and five day respectively, use it for the concentration of measuring reactive compound (compd A), the results are shown in table 1.

Table 1

Experimental example 2

The granule that will prepare in experimental example 1 of the present invention is used to prevent and treat lowland weeds (annual weed such as barnyard grass grass and Monochoria vaginalis) experiment, and the gained control efficiency of granule of the present invention is considered to fabulous.

Claims (3)

1, is at least the mineral dust preparation of 15 μ m and the granule that contains agricultural chemicals of preparation with average weight-particle diameter.

2, according to the granule that contains agricultural chemicals of claim 1, the average weight-particle diameter of wherein said mineral dust is at least 20 μ m.

3, the preparation method who contains the granule of agricultural chemicals prepares granule comprising the mineral dust that is at least 15 μ m with average weight-particle diameter.