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Synergistic bactericide and preparation method thereof

A synergistic and fungicide technology, applied in the direction of fungicides, botanical equipment and methods, and biocides, can solve the problems of oomycetes and bacteria ineffectiveness, and achieve the goals of reducing drug costs, simple production, and reduced control costs Effect

Inactive Publication Date: 2014-01-08
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

but not effective against oomycetes and bacteria

Method used

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  • Synergistic bactericide and preparation method thereof
  • Synergistic bactericide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: Preparation of 40% thiophanate-methyl hexaconazole wettable powder

[0017] Thiophanate-methyl 37%

[0018] Hexaconazole 3%

[0019] NNO (dispersant) 3%

[0020] Sodium lignosulfonate (dispersant) 7%

[0021] Sodium alkylbenzene sulfonate (dispersant) 1%

[0022] Silica (filler) 49%

[0023] Weigh the materials according to the above weight ratio, add each material successively under stirring, after being pulverized by a jet mill and then stir and mix uniformly, the product is obtained, and the field drug efficacy test for preventing and treating rice sheath blight is carried out. The disease control effect is 80%.

[0024] Table 1 Control effect of 40% thiophanate-methyl·hexaconazole wettable powder on rice sheath blight after 10 days of treatment (%)

[0025]

Embodiment 2

[0026] Embodiment 2: Preparation of 45% thiophanate-methyl hexaconazole suspension concentrate

[0027] Thiophanate Methyl 40%

[0028] Hexaconazole 5%

[0029] Nonylphenol ethoxylate (NP-9) (dispersion wetting agent) 8%

[0030] Propylene glycol (antifreeze) 1%

[0031] Xanthan gum (thickener) 1%

[0032] Silicone defoamer (SAG612) 2%

[0033] Water (filler) 43%

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Abstract

The invention provides a synergistic bactericide and a preparation method thereof, which relates to the technical field of production of pesticides. The synergistic bactericide comprises the active components consisting of thiophanate methyl, hexaconazole and additives, wherein on the basis of the total weight of the bactericide, thiophanate methyl accounts for 2 to 50%, hexaconazole accounts for 1 to 20%, an auxiliary agent accounts for 2 to 25%, and a filling material accounts for 5 to 95%. A bactericide composition which contains thiophanate methyl and hexaconazole and is in the form of a wettable powder or suspending agent can be prepared by adding the above-mentioned components into an enamel mixing tank for uniform mixing and carrying out air jet pulverization or grinding. The synergistic bactericide employs compounding of thiophanate methyl and hexaconazole, has the characteristics of low toxicity, low residual, a wide insecticidal spectrum, good persistence, low cost and in particular, nuisanceless control, and is an ideal pesticide variety for prevention and treatment of a variety of diseases.

Description

technical field [0001] The invention relates to the technical field of pesticide production. Background technique [0002] Rice sheath blight is an important disease of rice, and the annual incidence area is about 290 million mu, which is a serious obstacle to high and stable rice yield in my country. The realization of pollution-free biological control of rice diseases is the development direction and goal of the field of agricultural plant protection. Jinggangmycin, the main biopesticide fungicide for the control of rice sheath blight, once occupied the market share of rice sheath blight control in my country for a long time. However, due to the decline in drug efficacy, the output has dropped to 30,000-40,000 tons (calculated based on 5% formulation) in recent years, and hexaconazole has replaced its position as the first fungicide. The usable area has been reduced to about 150 million mu. However, the continuous emergence of new products seized the market share of Jin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/34A01P3/00A01N43/653
Inventor 孙红军南艳童振祥徐国香
Owner JIANGSU DONGBAO AGROCHEM
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