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Compounded pesticide sterilizing composition

A technology of a composition and a fungicide, which is applied in the field of compound pesticide and sterilization compositions to achieve the effects of improving the control effect, reducing the pollution and reducing the dosage of the drug

Inactive Publication Date: 2011-11-23
HAILIR PESTICIDES & CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And about the above-mentioned two-component compounding, there is no relevant research or report at home and abroad.

Method used

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  • Compounded pesticide sterilizing composition
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  • Compounded pesticide sterilizing composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0018] The necessary components and simple preparation methods for preparing the dosage form of the pesticide preparation are as follows:

[0019] In the dosage form embodiment, the active ingredient A represents bixafen, a new type of pyrazole fungicide, and the active ingredient B represents several ergosterol synthesis inhibitor compounds such as rice blastic acid ester, penconazole, cyproconazole, epoconazole, cyproconazole, etc. Any one of fenhexamid, flusilazole, prochloraz, propiconazole, prothioconazole, silfluazole, spiroxamid, tebuconazole, and tetrafluconazole.

[0020] One of the technical solutions of the present invention, the described bactericidal composition is a wettable powder, and the weight percentage of the components is:

[0021]

[0022] The specific processing steps of the wettable powder of the bactericidal composition are as follows: mix the active ingredient A, the active ingredient B, the dispersant, the wetting agent and the filler according to...

example 1

[0051] (1) Experimental object: Cucumber powdery mildew fungus, collected and isolated from cucumber cultivation areas in Shouguang, Shandong Province, where no bixafen and ergosterol synthesis inhibitor pesticides were applied, and the variety is Changchun Mici.

[0052] The susceptible cucumber variety Changchun Mici was cultivated in a seedling pot and placed in a greenhouse for cultivation. After the plants reached the three-to-four-leaf stage, the leaves of the same leaf age were collected for the cultivation and determination of cucumber powdery mildew.

[0053] Cucumber powdery mildew was cultured by live plant method at 20°C and 12 hours of alternating light and dark conditions, and subcultured once every 30 days. When inoculating, the conidia on the diseased leaves were washed out with sterile water, and the conidia concentration was prepared to be 1×10 6 individual / mL suspension.

[0054] (2) Experimental medicaments: 90% bixafen technical product, Germany Bayer Cro...

example 2

[0078] Biological assay example 2: Indoor toxicity test of bixafen and prothioconazole against cucumber powdery mildew.

[0079] Preparation of drug solution for single-dose toxicity test: dissolve bixafen and prothioconazole in acetone as a solvent to prepare a 10,000 μg / ml mother solution, store at 4°C until use.

[0080] Mixing combination setting: 11% bixafen·prothioconazole mass ratio is 2%+9%, 4%+7%, 5%+6%, 6%+5%, and 8%+3%, a total of 5 mix and match.

[0081] On the basis of the preliminary test, the toxicity of a single dose of bixafen and prothioconazole was determined by the above method, and the EC 50 The values ​​were 4.79mg / l and 8.01mg / l, respectively.

[0082] Toxicity test results and analysis:

[0083] Table 3 Toxicity and synergistic effect of different ratios of bixafen and prothioconazole mixture on cucumber powdery mildew

[0084] Drug mass ratio

[0085] Table 4 Combined toxicity of bixafen and prothioconazole against Cucumber powdery milde...

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Abstract

The invention relates to a sterilizing composition in the field of pesticide compounding. An effective component bixafen of the sterilizing composition is subjected to two-element mixing with a few kinds of ergosterol synthetic inhibitor compounds; the weight percentage proportion of the two effective components is (80:1)-(1:80), preferably (1-40):(50-1); the total weight percentage of the effective components in the sterilizing composition is 1-90 percent, preferably 5-55 percent; and the rest in the sterilizing composition is auxiliary components which are allowed to be used and are acceptable in pesticide. By using the known method, the sterilizing composition can be prepared into wettable powder, emulsifiable solution, suspending agent, water dispersible granules, water emulsion or microemulsion.

Description

technical field [0001] The present invention relates to a synergistic bactericidal pesticide composition, in particular to a composition comprising bixafen and some compounds selected from ergosterol biosynthesis inhibitors such as blastic-methyl, penconazole, cyproconazole, epoconazole, cyclamyl The additive of two-component compounding of any bactericidal active ingredient of chlorcymidine, flusilazole, prochloraz, propiconazole, prothioconazole, silfluazole, spiroxamid, tebuconazole, and tetraflumezole effective fungicidal composition. Background technique [0002] bixafen (C 18 h 12 Cl 2 f 3 N 3 (2) is a novel SDI pyrazole bactericide, and the chemical structural formula of bixafen is: [0003] [0004] Bixafen is a succinate dehydrogenase inhibitor, which will be mainly developed for the control of leaf spot and leaf rust, but the research shows that this new compound has good activity against a variety of pathogens, such as powdery mildew, Botrytis cinerea, fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/38A01N43/56A01N43/653A01N37/24A01N55/10A01N43/30A01P3/00
Inventor 葛尧伦杨波涛杜秀斌韩先正葛大鹏
Owner HAILIR PESTICIDES & CHEM GRP
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