Compound bactericide and application thereof

A technology of compounding fungicides and preparations, applied in the field of pesticides, to achieve the effect of delaying the drug resistance of pathogenic bacteria, unique mechanism of action, and multiple action sites

Inactive Publication Date: 2013-07-03
INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So far, there have been no reports on the use of mandipropamid and fludioxonil to develop a mixture to control cucumber downy mildew, potato / tomato late blight, vegetable gray mold, cucumber root rot, and pepper blight.

Method used

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  • Compound bactericide and application thereof
  • Compound bactericide and application thereof
  • Compound bactericide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: the wettable powder of compound fungicide

[0065] Preparation: 30% mandipropamid·fludioxonil WP (2:1, w / w): take 20.83kg of 96% mandipropamid original drug, 10.42kg of 96% fludioxonil original drug, add 2kgM- 9, 1.5kgCMC, 5kg sodium dodecylbenzenesulfonate, 60.25kg light calcium, after mixing and stirring, enter the primary crushing (particle fineness reaches 80 mesh); after mixing and stirring again, enter the secondary crushing (particle fineness The degree reaches 325 mesh), and the packaging is a product.

Embodiment 2-6

[0066] Embodiment 2-6: wettable powder

[0067] The preparation method is the same as in Example 1, except that the components listed in Table 1 are different.

[0068] Table 1 Example 2-6 Components

[0069]

Embodiment 1-6

[0070] Example 1-6 The quality detection of compound fungicide mandiprodil · fludioxonil WP

[0071] 1) Active ingredient content: the contents of mandipropamid and fludioxonil were determined by liquid chromatography, and the results showed that the contents of active ingredients in Mandipropamid · Fludioxonil WP in Examples 1-6 were all greater than 30.00% .

[0072] 2) Determination of wettability: according to GB / T5451-2001 determination method of wettability of pesticide wettable powder. Examples 1-6 The wetting time of mandiprodil·fludioxonil WP is 55s.

[0073] 3) Determination of suspension rate: according to GB / T14825-2006 Determination of Suspension Rate of Pesticide Wettable Powder. Examples 1-6 The suspension rate of mandiprodil·fludioxonil WP is above 85%.

[0074] 4) Determination of fineness: according to the wet sieving method in GB / T16150-1995 Pesticide Wettable Powder Fineness Determination Method. Mandipropamid·fludioxonil WP of Example 1-6 passing throu...

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Abstract

The invention discloses a compound bactericide and an application thereof. The compound bactericide is prepared from mandipropamid and fludioxonil, and the mass ratio of mandipropamid to fludioxonil is (1-9): (1-90), preferably (1-5):(1-5), and more preferably (1-3):1. The compound bactericide is applicable to prevention of vegetable downy mildew, late blight, botrytis, cucumber root rot, pepper phytophthora blight and other plant diseases. The fast-acting property and the persistence of the compound bactericide are good, the mechanism of action is unique, the acting sites are more, the bacteriocidal spectrum is wide, the biosecurity is high, the preparation process is simple, the cost is low, and the economic benefit is remarkable.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a compound fungicide and its application. Background technique [0002] The application of chemical agents is the most effective means to prevent and control plant diseases, but long-term continuous high-dose application of a single fungicide is likely to cause problems such as chemical residues, environmental pollution, and the development of drug-resistant fungi. Reasonable compounding or mixing of chemical fungicides can expand the bactericidal spectrum, improve the control effect, prolong the application interval, reduce the dosage, reduce the injury, reduce the residue, and delay the occurrence and development of drug resistance and drug resistance of pathogenic fungi, etc. features. Fungicide compounding is one of the effective methods to solve the above problems. [0003] Mandipropamid is a carboxylic acid amide fungicide. This kind of fungicide is a novel chemical agent. It in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/36A01N37/36A01P3/00
Inventor 王文桥孟润杰张小风马志强韩秀英赵建江
Owner INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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