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Fludioxonil-containing bactericidal composition

A technology of fludioxonil and its composition, which is applied in the field of agricultural fungicides, can solve the problems of unfavorable environmental sustainable development, disease resistance, and increased dosage, so as to delay the occurrence and development of pathogenic drug resistance, prolong the Use effect, effect of improving safety

Active Publication Date: 2011-04-20
陕西亿田丰作物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Long-term use of a single agent of fludioxonil can easily cause disease resistance, leading to problems such as increased dosage, reduced control effect, and shortened duration, which is not conducive to sustainable development of the environment

Method used

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  • Fludioxonil-containing bactericidal composition
  • Fludioxonil-containing bactericidal composition
  • Fludioxonil-containing bactericidal composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Example 1 Efficacy test of 80% carbendazim·fludioxonil wettable powder in the control of wheat powdery mildew

[0089] 70% carbendazim, 10% fludioxonil, 3% polycarboxylate, 3% sodium lauryl sulfate, 2% silkworm excrement, and diatomaceous earth are added to 100%, and the mixture is jet milled to obtain 80% Carbendazim · Fludioxonil wettable powder. The proportion is diluted and sprayed at 30 g / mu, sprayed at the early stage of the disease, sprayed once every 7 days, and sprayed twice in total. 7 days and 14 days after the last spraying, the disease index was investigated and the control effect was calculated. 7 days and 14 days after the application, the effects of preventing and treating wheat powdery mildew were 91.5%, 97.2%, respectively. The 50% carbendazim wettable powder and the 50% fludioxonil wettable powder followed the same method, respectively at 100 g / mu and 15 g / mu diluted use, 14 days after the drug control effect were 64.5% and 68.3%.

[0090] In this...

Embodiment 2

[0091] Example 2 Efficacy test of 40% propiconazole·fludioxonil aqueous emulsion for controlling banana leaf spot

[0092]30% propiconazole, 10% fludioxonil, 8% acetone, 4% n-octanol, 5% alkylphenol polyoxyethylene ether phosphate, 3% polyethylene glycol, 5% calcium alkylbenzenesulfonate, Add 2% sodium chloride and deionized water to 100%, and mix to prepare 40% propiconazole·fludioxonil aqueous emulsion. The ratio is 2500 times diluted and sprayed, sprayed at the early stage of the disease, sprayed once every 7 days, and sprayed 3 times in total, and investigated the disease index and calculated the control effect 7 days and 14 days after the last spraying. 7 days and 14 days after the drug, the effects of preventing and treating banana leaf spot were 91.8%, 95.6%, respectively, and 25% propiconazole EC and 50% fludioxonil wettable powder were diluted 800 times and 3500 times respectively according to the same method. After 14 days, the control effects were 66.4% and 69.6%, ...

Embodiment 3

[0094] Example 3 Effect Test of 48% Cyclostrobin · Fludioxonil Suspension Concentrate on Controlling Rice Sheath Blight

[0095] Cyclostrobin 40%, Fludioxonil 8%, Polycarboxylate 3%, Lignosulfonate 2%, Sodium Dodecyl Benzene Sulfonate 3%, Xanthan Gum 0.5%, Polyethylene Glycol 4 %, deionized water was added to 100%, and mixed to prepare 48% cyclostrobin · fludioxonil suspension. The proportion is diluted and sprayed at 30 g / mu, sprayed at the early stage of the disease, sprayed once every 7 days, and sprayed 3 times in total. 7 days and 14 days after the last spraying, the disease index was investigated and the control effect was calculated. 7 days and 14 days after the medicine, the effects of preventing and treating rice sheath blight were 91.7%, 96.1%, respectively, and 25% cyclostrobin suspension concentrate and 50% fludioxonil wettable powder followed the same method, respectively pressing 120 grams / mu and 15 Diluted in grams / mu, the control effects were 70.8% and 71.2% 1...

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Abstract

The invention discloses a bactericidal composition, which contains a synergy effective amount of fludioxonil, and one of propiconazol, carbendazim, thiram, JS399-19, cyprodinil and polyoxin. The weight part ratio of the two active ingredients in the bactericidal composition is 50:1 to 1:50. The bactericidal composition provided by the invention at least contains a surfactant which is favorable for dispersing the active ingredients in water when applied, integrates protection, treatment and eradication activities, and can be used for preventing and controlling the plant diseases, caused by the pathogenic bacteria of aseomycotina, basidiomycolina and deuteromycotina, of various crops, such as wheat, rice, vegetables, fruit trees and the like.

Description

technical field [0001] The invention belongs to the field of agricultural fungicides and relates to the preparation and application of a fungicidal composition containing fludioxonil. Background technique [0002] Fludioxonil is an azole fungicide. Molecular formula is C 12 h 6 f 2 N 2 o 2 , chemical name: 4-(2,2-difluoro-1,3-benzodioxol-4-yl)-1-hydrogen-pyrrole-3-carbonitrile. [0003] Fludioxonil is a broad-spectrum contact fungicide, which is used as a foliar fungicide to prevent Fusarium nivale, wheat smut, and blight, and has special effects on gray mold; it is used as a seed treatment agent, It can prevent and control most of the seed-borne and soil-borne fungal diseases. It is stable in the soil and forms a protective zone in the rhizosphere of seeds and seedlings to prevent the invasion of pathogens. The structure is new, and it is not easy to cross-resistance with other fungicides. [0004] Long-term use of a single dose of fludioxonil can easily cause dise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01N43/36A01N47/18A01N47/26A01N37/44A01N43/54A01N47/12A01P3/00
Inventor 张伟高超曹巧利
Owner 陕西亿田丰作物科技有限公司
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