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Changchuan mycin agricultural bactericide and its preparing method and use

An agricultural fungicide, Changchuanmycin technology, applied in the field of agricultural and horticultural fungicides, can solve the problems of residue, serious opposite resistance and poor effect

Inactive Publication Date: 2002-08-21
SHANGHAI PESTICIDE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long-term use of these agents, many diseases have developed quite serious resistance. For example, due to the long-term use of carbendazim, gray mold resistance has become very common. Farmers have to increase the amount of use dozens of times when controlling gray mold amount, but the effect is getting worse and worse, on the contrary, the resistance is getting more and more serious, entering a vicious circle; and due to the large amount of use of some chemicals and the high residue, it has caused a lot of pressure on the environment

Method used

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  • Changchuan mycin agricultural bactericide and its preparing method and use
  • Changchuan mycin agricultural bactericide and its preparing method and use
  • Changchuan mycin agricultural bactericide and its preparing method and use

Examples

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Comparison scheme
Effect test

Embodiment 1

[0051] Example 1 Nagakawamycin is manufactured with 3% glucose, 5% starch, 1% peanut cake powder, 2% soybean cake powder, 0.1% peptone, 0.4% yeast extract, 0.2% sodium chloride, 0.5% magnesium sulfate, nitric acid The culture medium was prepared with 0.2% amine and 0.05% dipotassium hydrogen phosphate, adjusted to pH 7.2, and then sterilized. Inoculate the above-mentioned SPRI 98520 strains in the culture medium, put 50ml in a 250ml Erlenmeyer shaker flask, and shake and cultivate at 28°C for 40 hours; use this culture as a seed, and inoculate the above-mentioned 100 kg culture medium at a ratio of 20%. In the fermented culture solution composed, cultured with aeration and stirring for 90 hours at 28°C. Take the fermentation culture liquid, filter to obtain 20 kg of filter residue, stir and soak with 60 kg of 80% water-containing acetone for 8 hours, after the mycelium is broken, merge with 80 kg of filtrate, and pass through 5 kg of HP20 type macroporous adsorption resin; Th...

Embodiment 2

[0052] Example 2 Preparation of Changchuanmycin WP

[0053] Take 40 parts of I or II or III obtained in Example 1, mix with 2 parts of sodium lignosulfonate, 4 parts of pull-off powder, 2 parts of sizing agent LS and 52 parts of diatomaceous earth, and grind to obtain 100 parts of the required content of wettable powder.

Embodiment 3

[0054] Example 3 Preparation of Changchuanmycin Emulsion

[0055] Mix 28 parts of I or II or III obtained in Example 1 with 10 parts of ethylene glycol, 20 parts of dimethylformamide, 10 parts of xylene and 32 parts of ethanol to obtain 100 parts of emulsion with the required content.

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Abstract

The agricultural Changchuan mycin bactericide is prepared through the process including culture of melanospore Changchuan variety SPRI 98520 CGMCC No.0638; separation and extraction of fermented culture to obtain Changchuan mycin; and mixing with assistants. The separation and extraction includes wall breaking of mycelium with acetone or ethanol, merging with fermented liquid, resin exchange and separation, desorption with acetone or ethanol, concentrating or purification. Test shows that the said bactericide has excellent preventing and treating effect, especially on gray mold of crop, corn pellagra and other diseases. Compared with available bactericides, the present invention has less consumption, low in cost, wide as range, high stability and low toxicity.

Description

technical field [0001] The present invention relates to an agricultural and horticultural fungicide with Changchuanmycin as an active ingredient, a preparation method thereof, and the application of the fungicide. Background technique [0002] In recent years, the technology of using microbial metabolites to be researched and developed into drugs (including medicines, pesticides, and veterinary drugs) is being widely used, such as penicillin and streptomycin, which are used as medical antibiotics. Jinggangmycin for disease, abamectin for control of various mites and noctuid moths, etc. Nonetheless, there are not many microbial pesticides with real application value for the prevention and control of agricultural diseases and insect pests in China. Cucumber Blight), Kasugamycin (control of rice blast and sorghum anthracnose), blasticidin (control of rice blast), polyamycin (control of wheat powdery mildew, tobacco scab, cucumber downy mildew, Black spot disease of ginseng an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/00C12N1/20
Inventor 陶黎明倪长春沈寅初张云桦顾学斌徐文平吴霞王磊祁秀明沈宙顾必文
Owner SHANGHAI PESTICIDE RES INST
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