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Sterilizing composition containing cyprodinil

A technology of cyprodinil and composition, which is applied in the field of compound bactericidal compositions, can solve the problems of easy resistance, low dosage and high cost, and achieves reduction of production and use costs, improvement of control effect, and reduction of pesticide residues. Effect

Inactive Publication Date: 2010-02-17
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has good control effects on downy mildew, anthracnose, gray mold, blight, powdery mildew, rust, rice blast, and apple scab, and has a low dosage and unique mechanism of action. It also has a certain protective effect, but The cost of using it alone is high, and the same bacteria are prone to resistance

Method used

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  • Sterilizing composition containing cyprodinil

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Bioassay Example 1: Toxicity determination of cyprodinil (A) combined with a methoxyacrylate fungicide (B) against cucumber powdery mildew

[0028] Test object: Cucumber powdery mildew pathogen

[0029] The potted method was used in this experiment. Cucumber powdery mildew varieties are susceptible to sowing, cultivated in pots until the stage of 2-4 true leaves, numbered for future use. Use pure water with a small amount of surface active substances to absorb fresh spores from cucumber leaves covered with powdery mildew bacteria to make a spore concentration of 1×10 5 individual / mL spore suspension for later use. On the basis of the preliminary test, set 5-7 series of mass concentrations according to the activity of the drug. Spray the liquid medicine evenly on the leaf surface until it is completely moistened, and wait for the liquid medicine to dry naturally for later use. For each treatment, 3 pots were repeated 4 times, and the treatment containing only solvent...

example 2

[0055] Bioassay Example 2: Cyprodinil (A) and a kind of methoxyacrylate fungicide (B) are combined to determine the toxicity of rice blast

[0056] Test object: rice blast

[0057] In this experiment, the pot planting method was adopted, and the test crops were rice blast-susceptible varieties. After germination, 20 seeds were sown in each pot, and rice seedlings with 3 leaves and 1 heart stage with the same growth were selected for future use. Cultivate the pathogenic bacteria used in the test on a suitable medium. After the spores are produced, wash the spores with sterile water to make a concentration of 1×10 5 spores / mL of rice blast spore suspension, set aside. According to the drug activity, set 5-7 serial mass concentrations. Spray the liquid medicine evenly on the leaf surface until it is completely wet, and wait for the liquid medicine to dry naturally for later use. Each pot was treated with 4 repetitions, and the treatment containing only solvent and surfactant b...

example 3

[0076] Biological Assay Example 3: Cyprodinil (A) and a methoxyacrylate fungicide (B) compound toxicity assay for Botrytis cinerea

[0077] Test objects: Botrytis cinerea and botrytis cinerea

[0078] The test uses the growth rate method (plate method). On the basis of the preliminary test, according to the test treatment, the pre-thawed sterilized medium was quantitatively added to the sterile conical flask, and 5ml of the liquid medicine was sequentially taken from low concentration to high concentration and added to 45ml of hot medium (PDA Culture medium, in the Erlenmeyer flask of 45-50 ℃), after shaking well, when the culture medium drops to suitable temperature, pour into the glass culture dish of diameter 90mm rapidly, each culture dish is poured into 10ml of culture medium with medicine. Set aside horizontally to cool and form into slabs. Each concentration was replicated five times. The treatment without the active ingredient of the drug was used as the blank contr...

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Abstract

The invention relates to a sterilizing composition containing cyprodinil. The sterilizing composition comprises effective components of cyprodinil (A) and a methoxyl acrylic ester bactericide (B), wherein the (B) can be kresoxim-methyl, azoxystrobin, metominostrobin, dimoxystrobin, trifloxystrobin, picoxystrobin, fluoxastrobin, pyraclostrobin, enestroburin, kresoxim-methyl or SYP amine, and the mass ratio of the (A) to the (B) is 50:1 to 1:50. After the (A) and the (B) are compounded, the sterilizing composition has obvious synergistic effect and can be used for the prevention and the controlof diseases of crops such as fruit trees, cottons, wheat, rice, vegetables, and the like, particularly for fungoid diseases.

Description

Technical field [0001] The present invention relates to a bactericidal composition, in particular to a compound bactericidal composition containing cyprodinil. Background technique [0002] In recent years, due to single-use and unscientific use of drugs, many diseases have become resistant to currently used pesticides, such as rice blast, gray mold, powdery mildew, scab, etc., which has become a major problem in chemical control. At the same time, frequent pesticide application increases the burden on farmers and intensifies environmental pollution. Therefore, there is an urgent need for new varieties of highly efficient, low-toxic, and environmentally friendly fungicides. [0003] Cyprodinil, the English common name is Cyprodinil, and the chemical name is 4-cyclopropyl-6-methyl-N-phenylpyrimidin-2-amine. It is a protective fungicide whose mechanism of action is a methionine biosynthesis inhibitor. It acts after spore germination, prevents fungi from penetrating crop cell...

Claims

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Application Information

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IPC IPC(8): A01N47/24A01N43/88A01N43/54A01N37/50A01N43/40A01N37/36A01P3/00
Inventor 张洪曹明章张承来刘胜召文伯健王艳武孔建
Owner SHENZHEN NOPOSION AGROCHEM
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