CN102160554A - Plant fungicide - Google Patents
Plant fungicide Download PDFInfo
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- CN102160554A CN102160554A CN2010105415807A CN201010541580A CN102160554A CN 102160554 A CN102160554 A CN 102160554A CN 2010105415807 A CN2010105415807 A CN 2010105415807A CN 201010541580 A CN201010541580 A CN 201010541580A CN 102160554 A CN102160554 A CN 102160554A
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- ground
- bactericide
- emulsifier
- leaf extract
- aqueous emulsion
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Abstract
The invention provides a plant fungicide in which a ficus tikoua bur extract is used as an active material. A preparation method for the plant fungicide comprises the following steps of: extracting the active material from stems and leaves of ficus tikoua bur by using an organic solvent to obtain the extract; and processing the extract, a solvent, and auxiliary agents such as an emulsifier, an antifreeze agent and the like to obtain emulsifiable oil or water emulsion. The ficus tikoua bur fungicide has the advantages of obvious preventive effects, difficulty in generation of drug resistance and high safety for human, livestock and the environment.
Description
Technical field:
The present invention relates to a kind of bactericide that is used to prevent and treat the farm crop fungus disease, belong to the field of pesticide technology.
Background technology:
The crop yield that whole world every year causes because of the harm of plant pathogenic fungi is with a toll of more than 13%.In China, corps diseases relies on the chemosynthesis bactericidal agent for preventing and treating for a long time, many bactericide not only make phytopathogen produce serious pesticide resistance owing to the single and unreasonable use of action site, but also because of residue of pesticide residual hazard serious threat Environmental security and food security.Therefore the non-environmental pollution control of always exploring corps diseases both at home and abroad, the particularly research of natural plants bactericide and application receives much concern.
Ground fruit (Ficus tikoua Bur) is the perennial bejuco that crawls of Moraceae (Moraceae) Ficus (Ficus), is commonly called as pachyrhizus, Fructus Fici tikouae, siphon etc., is distributed widely in each provinces and regions on the south China Qinling Mountains.Bactericidal activity about the ground fruit, only report that to red, Wang Xuying its water decoction has inhibitory action [to red, Wang Xuying to Hayes shigella dysenteriae and staphylococcus aureus, ground fruit (Ficus tikoue Bur) antibacterial action detects, six model higher junior college of dish waterborne forces journals, 2005,17 (6): 1～3].So far do not suppress plant pathogenic fungi and be developed as the report that disinfectant use in agriculture is prevented and treated corps diseases relevant for the ground berry extract.
Summary of the invention:
It is the bactericide of active substance with the ground berry extract that purpose of the present invention just provides a kind of, not only remarkable to the farm crop fungus diseases control, and to non-target organism and Environmental security, the worry of noresidue residual hazard.
Bactericide of the present invention is suitable for being processed into missible oil and aqueous emulsion.
Ground fruit missible oil is made up of ground stem end leaf extract, solvent and emulsifier, and the shared mass percent of each component is as follows:
Ground stem end leaf extract 5～50%
Emulsifier 5～10%
Solvent 40～90%
Ground fruit aqueous emulsion is made up of ground stem end leaf extract, emulsifier, antifreeze and water, and the shared mass percent of each component is as follows:
Ground stem end leaf extract 5～40%
Emulsifier 8～15%
Antifreeze 8～10%
Water 35～79%
Preparation method of the present invention comprises the steps:
A. the oven dry of ground stem end leaf, pulverizing back are added in the extractor, the adding organic solvent (benzinum, benzene, ethyl acetate, ethanol, methyl alcohol, but be not limited thereto) carry out refluxing extraction, obtain really extract of ground.
B. the extract with the steps A gained changes in the concentration tank of band decompressor, is concentrated into when no longer going out solvent, and blowing is the ground berry extract while hot.
C. solvent metering back adds modulation kettle, is warming up to 60～65 ℃, under agitation adds emulsifier and ground berry extract, continues to stir 30min, promptly gets ground fruit missible oil.
D. ground berry extract and emulsifier are added modulation kettle, be warming up to 70～75 ℃, stir adding antifreeze and water down,, promptly get ground fruit aqueous emulsion again through shearing homogeneous 30min.
Compared with prior art, bactericide of the present invention---ground fruit missible oil and ground fruit aqueous emulsion have following advantage:
1) preventive effect is remarkable, the crop pest that oomycetes is caused particularly, and the land for growing field crops preventive effect can be stabilized in more than 85%.
2) bactericide of the present invention, its active component is a multicomponent mixture, has a plurality of action sites, pathogen is difficult for developing immunity to drugs.
3) fruit itself is the forage grass of herd sheep and cattle, also uses as the Chinese medicine decoction among the people, and therefore bactericide of the present invention is easy to degraded, the worry of noresidue residual hazard to the person poultry safety in environment.
Embodiment
Help to understand the present invention by following embodiment, but do not limit content of the present invention.
Embodiment one
Ground fruit missible oil preparation
Take by weighing 40g ground berry extract, add 50g dimethylbenzene and 10g emulsifier, be warming up to 60 ℃, stir 30min and promptly get 40% ground fruit missible oil.
Wherein emulsifier consists of: peaceful breast 34: DBS-Ca (calcium dodecyl benzene sulfonate, down together)=2: 1 (mass ratio).
Embodiment two
Ground fruit aqueous emulsion preparation
Take by weighing ground berry extract 20g, add the 12g emulsifier, be warming up to 70 ℃, stir adding 8g ethylene glycol and 60g water down, high shear homogeneous 30min promptly gets 20% ground fruit aqueous emulsion.
Wherein emulsifier consists of: farming breast 600: OP-10: DBS-Ca=2: 4: 1 (mass ratio).
Embodiment three
Potted plant control cucumber downy mildew test
Supply examination during 2 true leaves of greenhouse pot culture cucumber (kind is the close thorn in Xintai City).Reagent agent is 40% ground, 500 times, 750 times of missible oil of fruit and 1000 times of dilutions, and the contrast medicament is 2000 times of 50% dimethomorph water dispersion granulas.Repeat every repetition 15 basins 3 times.2 all investigation prevention effects the results are shown in Table 1 after the dispenser.
The results from pot experiment test of table 1 40% ground fruit missible oil control cucumber downy mildew
The presentation of results of table 1, fruit missible oil 500 times of control efficiency to cucumber downy mildew in 40% ground are suitable with 2000 times of 50% dimethomorph water dispersion granulas, can reach more than 85%.
Embodiment four
The test of control in field cucumber downy mildew
Test is carried out on Xibei Univ. of Agricultural ﹠ Forest Science ﹠ Technology experiment station cucumber ground, 6～8 leaf periods of duration cucumber (kind is the close thorn in Xintai City), and cucumber downy mildew begins to have fragmentary generation.40% ground, 500 times of missible oil of fruit, 2000 times of 50% dimethomorph water dispersion granulas and 3 kinds of processing of clear water contrast are established in test.Sub-district area 45m
2, 3 repetitions, district's group is arranged at random.Every sub-district spraying liquid measure 3.5Kg, dispenser twice altogether, 7d at interval.7d investigation prevention effect after the dispenser for the second time the results are shown in Table 2.
Table 2 40% ground fruit missible oil control cucumber downy mildew field experiment result
The presentation of results of table 2, under the serious situation about taking place of cucumber downy mildew, 40% ground, 500 times of missible oil of fruit are suitable with 2000 times of control efficiency of 50% dimethomorph, can control this evil of being critically ill effectively.
Claims (5)
1. a bactericide is characterized in that this bactericide is to be processed by ground fruit (Ficus tikoua Bur) stem-leaf extract and auxiliary agent.
2. bactericide as claimed in claim 1 is characterized in that this bactericide can be processed into missible oil.
The shared mass percent of each component is in this missible oil:
Ground stem end leaf extract 5～50%
Emulsifier 5～10%
Solvent 40～90%
3. bactericide as claimed in claim 1 is characterized in that this bactericide can be processed into aqueous emulsion.
The shared mass percent of each component is in the aqueous emulsion:
Ground stem end leaf extract 5～40%
Emulsifier 8～15%
Antifreeze 8～10%
Water 35～79%
4. as claim 1,2 described plant sterilization agent emulsifiable solution preparation methods are:
Add emulsifier and ground stem end leaf extract after solvent is warming up to 60～65 ℃, stir 30min, get ground fruit missible oil.
5. as claim 1,3 described bactericide method for producing aqueous emulsion are:
Ground stem end leaf extract adds emulsifier, under agitation adds antifreeze and water after being warming up to 70～75 ℃, through high shear homogeneous 30min, ground fruit aqueous emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105415807A CN102160554A (en) | 2010-11-02 | 2010-11-02 | Plant fungicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105415807A CN102160554A (en) | 2010-11-02 | 2010-11-02 | Plant fungicide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102160554A true CN102160554A (en) | 2011-08-24 |
Family
ID=44462223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105415807A Pending CN102160554A (en) | 2010-11-02 | 2010-11-02 | Plant fungicide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102160554A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879637A (en) * | 2017-03-18 | 2017-06-23 | 陕西康禾立丰生物科技药业有限公司 | A kind of efficient bactericidal composite of the flavones of fruit containing ground |
| CN106879639A (en) * | 2017-03-18 | 2017-06-23 | 陕西康禾立丰生物科技药业有限公司 | A kind of composition pesticide of the flavones of fruit containing ground |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463605A (en) * | 2002-06-22 | 2003-12-31 | 西北农林科技大学农药研究所 | Plant bacteriocide |
-
2010
- 2010-11-02 CN CN2010105415807A patent/CN102160554A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463605A (en) * | 2002-06-22 | 2003-12-31 | 西北农林科技大学农药研究所 | Plant bacteriocide |
Non-Patent Citations (2)
| Title |
|---|
| 向红，等: "地果（FicustikouaBur）抗菌作用检测", 《六盘水师范高等专科学校学报》 * |
| 向红，等: "地果黄酮类化合物的含量及抗氧化作用测定", 《六盘水师范高等专科学校学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879637A (en) * | 2017-03-18 | 2017-06-23 | 陕西康禾立丰生物科技药业有限公司 | A kind of efficient bactericidal composite of the flavones of fruit containing ground |
| CN106879639A (en) * | 2017-03-18 | 2017-06-23 | 陕西康禾立丰生物科技药业有限公司 | A kind of composition pesticide of the flavones of fruit containing ground |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20110824 |