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Synergistic sterilization composition and application thereof

The technology of a composition and chlorothalonil is applied in the field of pesticides, which can solve the problems of high cost and the risk of pathogenic bacteria resistance, and achieve the effects of improving the control effect, overcoming the resistance to pathogens, and increasing the action site.

Inactive Publication Date: 2014-09-03
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compound is expensive to use alone and is prone to the risk of pathogenic bacteria developing resistance

Method used

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  • Synergistic sterilization composition and application thereof
  • Synergistic sterilization composition and application thereof
  • Synergistic sterilization composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Biological Assay Example 1: Indoor Toxicity Determination of Pyrafenapyr and Chlorothalonil Pairing Cucumber Powdery Mildew

[0030] Test object: Cucumber powdery mildew (Sphaerotheca fuliginea (Sch.) Poll) (collected from wild cucumber powdery mildew strains in the field, and separated and purified)

[0031] Test method: The test refers to the Agricultural Industry Standard of the People's Republic of China NY / T1156.11-2008 "Indoor Bioassay Test Guidelines for Pesticides and Fungicides Part 11: Pot Cutting Method for Controlling Melon Powdery Mildew Test", and the pot cutting method is used for determination.

[0032] Sow susceptible cucumber varieties, and grow them in pots until the stage of 2-4 true leaves is set aside. The original drug of pyraclostrobin and the original drug of chlorothalonil were respectively dissolved in dimethylformamide, and then diluted with 0.1% Tween-80 surfactant aqueous solution. For each treatment of 3 pots, repeat 4 times, evenly spray...

Embodiment 2

[0042] Biological Assay Example 2: Indoor Toxicity Determination of Pyrafenapyr and Chlorothalonil against Wheat Powdery Mildew

[0043]Test object: wheat powdery mildew (Erysiphe graminis) (collected from wild wheat powdery mildew strains in the field, and separated and purified)

[0044] Test method: The test refers to the Agricultural Industry Standard of the People's Republic of China NY / T1156.4-2006 "Indoor Bioassay Test Guidelines for Pesticides and Fungicides Part 4: Pot Cutting Method for the Control of Wheat Powdery Mildew Test", and the pot cutting method is used for determination.

[0045] Select susceptible wheat varieties for potting, and wait for the seedlings to grow to the 2-3 leaf stage for later use. The original drug of pyraclostrobin and the original drug of chlorothalonil were respectively dissolved in dimethylformamide, and then diluted with 0.1% Tween-80 surfactant aqueous solution. 3 pots per treatment, 10 plants per pot, repeated 4 times, evenly spray...

Embodiment 1、20

[0054] Formulation Example 1, 20% pyraclostrobin · chlorothalonil suspension

[0055] Pyrafenal 18%, chlorothalonil 2%, alkylphenol polyoxyethylene ether (dispersant) 3%, calcium lignosulfonate (dispersant) 2%, pull-off powder (wetting agent) 1% , xanthan gum (thickener) 0.2%, ethylene glycol (antifreeze) 4%, 20% polydimethylsiloxane emulsion (defoamer) 0.4%, sodium benzoate (preservative) 0.2%, water Replenishes to 100%.

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PUM

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Abstract

The invention discloses a synergistic sterilization composition and an application thereof. The sterilization composition comprises effective components including isopyrazam and chlorothalonil, wherein the mass ratio of isopyrazam to chlorothalonil ranges from (1:40) to (20:1). The composition has an obvious synergistic effect and good safety, is applicable to preventing and treating powdery mildew and rust diseases of crops and is particularly applicable to preventing and treating powdery mildew and rust diseases of vegetables, fruits and cereal crops.

Description

technical field [0001] The invention relates to a synergistic bactericidal composition, in particular to a synergistic bactericidal composition containing pyraclostrobin and its application for preventing and treating crop diseases, belonging to the technical field of pesticides. Background technique [0002] Powdery mildew is a widespread worldwide disease caused by fungi in the family Erysiphyceae. Rust is a worldwide disease caused by parasitism of rust fungi. [0003] In production, chemical pesticides are mainly used to control powdery mildew and rust. At present, it mainly relies on benzimidazoles, hydroxypyrimidines, phenoxyquinolines, triazoles and methoxyacrylate fungicides. These agents have produced varying degrees of resistance due to long-term use, and the control effect has decreased. In addition, triazole agents can inhibit the growth of crops when used in large doses, and easily cause phytotoxicity. Therefore, it is urgent to research and develop new effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01P3/00A01N37/34
Inventor 张华东杨立平孙承艳王新军曹明章孔建
Owner SHENZHEN NOPOSION AGROCHEM
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