JP2007045728A - Water-based horticultural pesticide composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water-based horticultural pesticide composition diluted with water in advance and adjusted to directly usable concentrations, and capable of maintaining over a long period the performance of a water-soluble colorant added for identifying the pesticide without deteriorating the composition(product). <P>SOLUTION: The water-based horticultural pesticide composition diluted with water in advance comprises a pesticidally active ingredient, a surfactant, the water-soluble colorant, a paraben-based preservative and water. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is an aqueous horticultural pesticide composition that can be directly applied to plants without diluting with water in a scene for home gardening, and a water-soluble colorant necessary for maintaining the appearance of the product without deteriorating the product. The present invention relates to an aqueous horticultural pesticide composition to which a preservative capable of maintaining the performance of the above is added over a long period of time.

  Aqueous horticultural pesticide compositions that can be directly sprayed on plants without diluting with water (hereinafter abbreviated as “agents”) are diluted with water in advance and directly adjusted to the use concentration. There is no need, there is no flammability and bad odor in the emulsion, fine powder scattering in the wettable powder, and it is very convenient and easy to use in the home gardening scene, so many products have been studied and developed (for example, (See Patent Documents 1 to 6.) In addition to agrochemical active ingredients, surfactants, etc., the ingredients that make up the agent as they are are water-soluble colorants that are added for the purpose of alerting the user to the fact that they are pesticides, and prevent alteration by microorganisms. Such as preservatives for

JP 2000-128704 A Japanese Patent Laid-Open No. 10-87403 JP-A-8-268803 JP-A-6-305904 JP-A-6-80504 JP-A-3-145403

In general, the agent is easily decomposed because the concentration of the agent is low. In particular, it is known that the amount of the water-soluble colorant added to the agent as it is is very small, so that it easily decomposes and fades.
On the other hand, since an aqueous preparation may be remarkably deteriorated by the influence of bacteria or mold during long-term storage, a preservative is generally added during formulation. However, when a general preservative for agricultural chemicals is added to the agent with the water-soluble colorant added as it is, decomposition of the water-soluble colorant is promoted and the appearance of the product within the expiration date cannot be maintained. It was. For this reason, the preservative which can suppress the quality change of a product, without promoting decomposition | disassembly of a water-soluble coloring agent was desired.

As a result of intensive studies to solve the above problems, the present inventors have found that the use of a paraben-based preservative can maintain the performance of a water-soluble colorant over a long period of time without altering the product. The headline and the present invention were completed. That is, the present invention
[1] An aqueous horticultural pesticide composition previously diluted with water, comprising an agrochemical active ingredient, a surfactant, a water-soluble colorant, a paraben-based preservative, and water,
[2] The aqueous horticultural agricultural chemical composition according to [1], wherein the paraben preservative is one or more parabens selected from methyl paraben, ethyl paraben, propyl paraben, isopropyl paraben, butyl paraben, isobutyl paraben and benzyl paraben. ,
[3] The aqueous horticultural agricultural chemical composition according to [1] or [2], wherein the preservative content is 0.01 to 1.00% by weight,
[4] The pesticidal active ingredient is N- (phosphonomethyl) glycine (generic name: glyphosate) or a salt thereof, or 4- [hydroxy (methyl) phosphinoyl] -DL-homoalanine (generic name: glufosinate) or a salt thereof [1] ] To [3] The aqueous horticultural agricultural chemical composition according to any one of the above,
[5] The aqueous horticultural agricultural chemical composition according to any one of [1] to [4], wherein the water-soluble colorant is Blue No. 1 or Blue No. 2.

  The aqueous horticultural pesticide composition of the present invention comprises an agrochemical composition for aqueous horticulture diluted in advance with water, which comprises an agrochemical active ingredient, a surfactant, a water-soluble colorant, a paraben preservative and water. The performance of the water-soluble colorant can be maintained over a long period of time without deteriorating the product due to the effect of the paraben-based preservative.

The pesticidal active ingredient contained in the aqueous horticultural pesticide composition of the present invention is not particularly limited as long as it can be used in the aqueous horticultural pesticide composition, but 2-tertiarybutylimino-3-isopropyl-5- Phenyl-3,4,5,6-tetrahydro-2H-1,3,5-thiadiazin-4-one (generic name: buprofezin), tert-butyl = (E) -α- (1,3-dimethyl-5 -Phenoxypyrazol-4-ylmethyleneaminooxy) -p-toluate (generic name: fenpyroximate), N-tert-butyl-N '-(4-ethylbenzoyl) -3,5-dimethylbenzzohydrazide (generic name) : Tebufenozide), (±) -5-amino-1- (2,6-dichloro-α, α, α-trifluoro-p-toluyl) -4-trifluoromethylsulfinylpyra Zole-3-carbonitrile (generic name: fipronil), (E) -N ¹ -[(6-chloro-3-pyridyl) methyl] -N ² -cyano-N ¹ -methylacetamidine (generic name: acetamiprid) Insecticidal active ingredients such as O, S-dimethyl-N-acetylphosphoramidothioate (generic name: acephate),

α, α, α-trifluoro-3′-isopropoxy-o-toluanilide (generic name: flutolanil), 2,3-dicyano-1,4-dithiaanthraquinone (generic name: dithianon), tetrachloroisophthalo Nitrile (generic name: TPN), 2-p-chlorophenyl-2- (1H) -1,2,4-triazol-1-ylmethyl) hexanenitrile (generic name: microbutanyl), 2-methoxy-N- (2- Bactericidal active ingredients such as oxo-1,3-oxazolidine-3-yl) aceto-2 ′, 6′-xylidide (generic name: oxadixyl), methyl = α- (4,6-dimethoxypyrimidin-2-ylcarbamoylsulfur Famoyl) -o-toluate (generic name: bensulfuronmethyl), 2-chloro-N- (3-methoxy-2-enyl) -2 ′, 6′-dimethyl Acetanilide (generic name: tenylchlor), ethyl = 2-chloro-5- (4-chloro-5-difluoromethoxy-1-methyl-1H-pyrazol-3-yl) -4-fluorophenoxyacetate (generic name: pyraflufen- Ethyl), N- (phosphonomethyl) glycine (generic name: glyphosate) and its ammonium salt, sodium salt, isopropylamine salt or trimesium salt, 4- [hydroxy (methyl) phosphinoyl] -DL-homoalanine (generic name: glufosinate) and Examples thereof include herbicidal active ingredients such as ammonium salts, particularly preferably N- (phosphonomethyl) glycine (generic name: glyphosate) or a salt thereof, or 4- [hydroxy (methyl) phosphinoyl] -DL-homoalanine (general Name: Gulhocine G) or a salt thereof.

  The surfactant used in the present invention is not particularly limited as long as it can be used in agricultural chemical formulations, but polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ether, formalin condensate of polyoxyalkylene alkyl phenyl ether, polyoxy Examples include alkylene polystyryl phenyl ether, polyoxyalkylene alkyl ether sulfite, polyoxyalkylene polystyryl phenyl ether phosphate, dioctyl sulfosuccinate, alkylbenzene sulfonate, lignin sulfonate, and the like. An activator can be used individually or in mixture of 2 or more types.

  As the water-soluble colorant used in the present invention, Red No. 2, Red No. 3, Red No. 40, Red No. 102, Red No. 104, Red No. 105, Red No. 106, Yellow No. 4, Yellow No. 5, Blue 1 No., Blue No. 2, etc., preferably Blue No. 1 or Blue No. 2. These water-soluble colorants can be used alone or in admixture of two or more.

  As the paraben preservative used in the present invention, one or more parabens selected from methyl paraben, ethyl paraben, propyl paraben, isopropyl paraben, butyl paraben, isobutyl paraben and benzyl paraben can be used. The blending ratio may be selected and used within the range of 0.01 to 1.00% by weight of the antiseptic effect and the water-soluble colorant, and is preferably 0.05% to 0.10% by weight.

  The agrochemical composition for aqueous horticulture of the present invention comprises a pesticide active ingredient, a surfactant, a water-soluble colorant, a paraben-based preservative, and a freeze-restoring agent (for example, ethylene glycol, propylene glycol, glycerin, etc.) as necessary. ), Antifoaming agents (eg, dimethylpolysiloxane, acetylene alcohol, etc.), organic solvents (eg, alkylbenzene, normal paraffin, etc.), stabilizers (eg, phosphoric acid, citric acid, etc.), and water It can be produced by the above conventional method. As water to be used, for example, distilled water, filtered water, sterilized water, etc. can be used in addition to tap water.

Although the typical Example and test example of this invention are shown below, this invention is not limited to these.
Example 1
Add water to 100% by weight of glufosinate 0.2% by weight, surfactant 0.3% by weight, blue No. 1 0.00007% by weight, propylparaben 0.05% by weight, mix and dissolve uniformly to form an aqueous pesticide A composition was obtained. The components and component amounts are shown in Table 1.
Examples 2 to 4 and Comparative Examples 1 to 3
Each aqueous horticultural agricultural chemical composition was prepared according to Example 1. The components and component amounts are shown in Table 1.

Test Example 1 Blue No. 1 Residual Tests The aqueous horticultural agrochemical compositions of Examples 1 to 4 and Comparative Examples 1 to 3 were placed in a colorless transparent glass bottle, left standing at 40 ° C. and 2000 lux, and sampled over time. The residual ratio of blue No. 1 was determined with a spectrophotometer. The results are shown in Table 2.

その結果、パラベン系防腐剤は良好な残存率を示し、水溶性着色剤の分解を抑制したが、他の防腐剤である１，２−ベンズイソチアゾリン−３−オン、５−クロロ−２−メチル−４−イソチアゾリン−３−オン、２−ブロモ−２−ニトロ−１，３−プロパンジオールは水溶性着色剤の分解を促進した。

As a result, the paraben-based preservative showed a good residual rate and suppressed decomposition of the water-soluble colorant, but 1,2-benzisothiazolin-3-one and 5-chloro-2-methyl, which are other preservatives -4-Isothiazolin-3-one and 2-bromo-2-nitro-1,3-propanediol promoted the decomposition of the water-soluble colorant.

Test Example 2 Preservative Effect Test on Mold Fungus isolated from a commercially available aqueous preparation was inoculated into the aqueous horticultural agrochemical compositions of Examples 1 to 4 and Comparative Example 1 of the present invention, and cultured with shaking at 25 ° C. After 30 days, the growth of the bacteria was determined with the naked eye. The results are shown in Table 3.

Test Example 3 Herbicidal Effect Test The aqueous horticultural agrochemical compositions of Examples 1 to 4 and Comparative Example 1 of the present invention were treated on the stems and leaves of Inobie and Onamomi, and the herbicidal effect after 3 weeks was visually determined. The results are shown in Table 4.

Claims (5)

  An aqueous horticultural pesticide composition previously diluted with water, comprising an agrochemical active ingredient, a surfactant, a water-soluble colorant, a paraben-based preservative, and water.   The aqueous horticultural agricultural chemical composition according to claim 1, wherein the paraben preservative is one or more parabens selected from methyl paraben, ethyl paraben, propyl paraben, isopropyl paraben, butyl paraben, isobutyl paraben and benzyl paraben.   The aqueous horticultural agricultural chemical composition according to claim 1 or 2, wherein the preservative content is 0.01 to 1.00% by weight.   The pesticidal active ingredient is N- (phosphonomethyl) glycine (generic name: glyphosate) or a salt thereof, or 4- [hydroxy (methyl) phosphinoyl] -DL-homoalanine (generic name: glufosinate) or a salt thereof. The aqueous horticultural agricultural chemical composition according to any one of the above.   The aqueous horticultural agricultural chemical composition according to any one of claims 1 to 4, wherein the water-soluble colorant is Blue No. 1 or Blue No. 2.