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Chinese medicine bactericidal agent for preventing and treating soft rot of konjak

A fungicide and soft rot technology, which is applied in the field of traditional Chinese medicine fungicides for the prevention and treatment of konjac soft rot, can solve the problems of affecting the killing effect of the pathogenic bacteria of konjac soft rot, and the lack of pertinence, so as to slow down drug resistance Production, strong specificity, and the effect of increasing drug resistance

Inactive Publication Date: 2009-05-20
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] Although many traditional Chinese medicine fungicides have been applied to the field of biopesticides, such as fungicides containing rhubarb extract and their compositions (ZL 02123720.4), these traditional Chinese medicine fungicides are not very specific, which affects their effect on konjac soft rot. The killing effect of pathogenic bacteria, if the traditional Chinese medicine fungicide is to be applied to the prevention and treatment of konjac soft rot, it is necessary to find a good inhibitory and killing effect on the pathogenic bacteria of konjac soft rot from many traditional Chinese medicines with bactericidal effect. The traditional Chinese medicine and its active ingredients can only improve the control effect by prescribing the right medicine, but the research in this area has not been reported so far, so there is no traditional Chinese medicine fungicide product that can effectively prevent and cure konjac soft rot used in konjac planting and production

Method used

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  • Chinese medicine bactericidal agent for preventing and treating soft rot of konjak
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Examples

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preparation example Construction

[0025] 4) Preparation of wettable powder: mix 3% to 12% of Coptis chinensis extract and 3% to 10% of honeysuckle leaf extract by weight percentage, dry at 80°C for 1 hour, crush through a 200-mesh sieve, and then add wettability After adding 3% to 5% of powder additives and 36% to 70% of filler carrier, put it in a mixer and stir it fully for 1 hour, while stirring, add 12% to 36% of garlic extract until all components are completely mixed evenly.

[0026] The method of using the traditional Chinese medicine fungicide of the present invention is to mix the wettable powder of the traditional Chinese medicine fungicide 200 to 500 times with water according to the weight ratio, and then use it for soaking the seeds of konjac taro, root irrigation and spraying of konjac plants, generally Apply 400 grams of traditional Chinese medicine fungicides per mu.

Embodiment 1

[0029] (1) Prepare garlic, coptis and honeysuckle leaf extract respectively

[0030] After peeling, Enshi produces 10 kg of fresh white-skinned garlic, wash it, add 3 kg of water, beat it with a beater for 0.5 hours to get garlic paste, pour it into a sealed tank, add 0.02mol / L hydrochloric acid dropwise and keep stirring until the pH of the garlic paste =6.0, sealed and kept at a temperature of 40° C., allowing the endogenous Alliinase in the mashed garlic to enzymatically hydrolyze alliin for 4 hours to produce allicin. After the enzymolysis is completed, the garlic paste is transferred to a stirring tank, and 40 kg of 95% edible ethanol is added, and after fully stirring, the allicin extract is obtained by filtering through a small stainless steel plate frame filter, and transferred to a vacuum decompression concentration tank, controlled The distillation temperature was 60° C., the vacuum degree was 0.01 MPa, and concentrated until no water was evaporated to obtain 0.43 kg...

Embodiment 2

[0040] Purchase 200 kilograms of fresh white-skinned garlic produced in Enshi, and obtain 9.22 kilograms of garlic extract according to the preparation method in Example 1 after peeling (the content of allicin in the extract is 6.36% through high-performance liquid chromatography); kg, obtain 5.84 kg of Coptidis Rhizoma extract according to the preparation method in Example 1 (the berberine content in the extract is detected by high-performance liquid chromatography to 33.10%); 50 kg of dry honeysuckle leaves produced in Chongqing, obtain Lonicera Lonicera according to the preparation method in Embodiment 1 9.50 kg of leaf extract (the content of chlorogenic acid in the extract is 15.79% as detected by high performance liquid chromatography).

[0041] Take 2.00 kg of Coptis chinensis extract and 1.80 kg of honeysuckle leaf extract, mix them, dry at 80°C for 1 hour, crush them through a 200-mesh sieve, add 0.80 kg of calcium dodecylbenzenesulfonate, alkyl aryl polyoxypropylene p...

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Abstract

The invention relates to a traditional Chinese medicine bactericide for preventing and controlling soft rot of konjak, and belongs to the filed of insect pests and plant disease prevention and control and biological pesticide. The traditional Chinese medicine bactericide comprises the following components by weight percentage: 12 to 36 percent of garlic extract, 3 to 12 percent of Chinese goldthread rhizome extract, 3 to 10 percent of Flos Lonicerae leave extract, 3 to 5 percent of wettable powder accessory ingredient for farm chemical, and the balance being packing carrier for the farm chemical. The components are compounded into the traditional Chinese medicine bactericide wettable powder which has obvious sterilizing effect on pathogen of the soft rot of konjak, namely Erwinia Aroideae Holland for preventing and controlling the soft rot of konjak. The traditional Chinese medicine bactericide wettable powder is environment-friendly, has strong specificity, is better than chemical agents to prevent and control the soft rot of konjak, has more than 65 percent of relative prevention effect, and can improve the yield of konjak when applied to konjak production, as proved by experiments.

Description

technical field [0001] The invention belongs to the fields of plant disease control and biological pesticides, and in particular relates to a traditional Chinese medicine fungicide for preventing and treating konjac soft rot. The konjac soft rot described in the present invention is caused by Erwinia carotovora pv. carotovora infection, and the konjac varieties are flower konjac, white konjac, Tianyang konjac and other konjac varieties susceptible to konjac soft rot. Background technique [0002] Konjac (Amorphophallus konjac) is a perennial herbaceous plant of Araceae. It is a rare plant high in glucomannan, and its bulb glucomannan (KGM) content can be as high as about 60% of the dry weight. Konjac glucomannan is the best dietary fiber and the "seventh nutrient element" necessary for the human body. It is one of the first-choice foods for patients with gastrointestinal diseases such as hypertension, obesity, diabetes, constipation, and intestinal cancer. , fine chemicals,...

Claims

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Application Information

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IPC IPC(8): A01N65/42A01N65/08A01N25/14A01P3/00
CPCY02A50/30
Inventor 余龙江金文闻何峰杨英
Owner HUAZHONG UNIV OF SCI & TECH
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