CN104542588B - A kind of active ingredient is the sustained release agent of biogenic pesticide - Google Patents
A kind of active ingredient is the sustained release agent of biogenic pesticide Download PDFInfo
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- CN104542588B CN104542588B CN201410694267.5A CN201410694267A CN104542588B CN 104542588 B CN104542588 B CN 104542588B CN 201410694267 A CN201410694267 A CN 201410694267A CN 104542588 B CN104542588 B CN 104542588B
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Abstract
The present invention relates to the sustained release agent that a kind of active ingredient is biogenic pesticide, in described sustained release agent, active ingredient is lentinan and allicin.The method preparing described sustained release agent is: by organic modified bentonite, mix with the acetone soln of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 1.5 2 hours；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50 600 microns.In the present invention, allicin and lentinan decrease the dosage of active ingredient after compounding, effectively enhance the effect of the prevention to watermelon virus disease and treatment, instant effect, and the lasting period is long, on non-Target crops without impact.
Description
Technical field
The present invention relates to the sustained release agent that a kind of active ingredient is biogenic pesticide, be specifically related to sustained release agent that a kind of active ingredient is lentinan and allicin for preventing and treating watermelon virus disease, belong to field of biological pesticide.
Background technology
Watermelon virus disease, is commonly called as little leaf, mosaic disease, and after watermelon is injured, blade diminishes, poor growth, and plant is downgraded, floral organ depauperation, serious can not depauperation after setting, or setting, deformity, the least, yield poorly, poor quality, lose commodity value.Watermelon virus mainly shows as flower leaf type and two kinds of symptoms of fern blade profile in field.Flower leaf type: yellowish green inlay pattern occurs in initial stage top vane, becomes shrinkage deformity later, and blade diminishes, and blade face is uneven, the newborn climing shortened internodes of stem, very thin distortion, and setting is few or not setting.Fern blade profile: newborn blade becomes long and narrow, and shrinkage distorts, poor growth, and plant is downgraded, bunch life of top performance sometimes is the longest, and floral organ depauperation, serious can not setting.Fall ill later diseased plant, and fruit development is bad, forms deformity melon, and the fruit face also having is uneven, the least, melon pulp crineous, affects the biggest on yield and quality.
Lentinan is the effective active composition extracted from quality xianggu fructification, is a kind of host immunity reinforcing agent, and lentinan has antiviral, antitumor, regulation immunologic function and stimulates the functions such as interferon formation.Lentinan is the composition improving phyto-immunity, and its molecular weight polysaccharide more than 10,000, with β-1,3 glucans are main, containing a small amount of wood sugar and mannose.Lentinan is mainly used in field of medicaments the earliest, along with biological pesticide research is deepened continuously by people, lentinan has the most been used for pesticide field to prevent and treat the relevant report of the viroses of plant." a kind of composition pesticide containing cytosintetidemycin Yu lentinan " of the patent such as Application No. 201110115213.5 of application, " a kind of biogenic pesticide composition preventing and treating the viroses of plant and the application thereof " of Application No. 201310733788.2.
Allicin (Allicin) is a kind of organosulfur compound extracted from the bulb (garlic) of Liliaceae allium garlic (Allium Sativum), exists in onion and other alliums.Formal name used at school GIUCOSinoate.Pale yellow oily liquid body.Boiling point 80-85 DEG C (0.2kPa), relative density 1.112(20/4 DEG C), index of refraction 1.561.It is dissolved in ethanol, chloroform or ether.Solubility 2.5% (quality) (10 DEG C) in water, its pH value of water solution is 6.5, has grease sediment to be formed during standing.Can dissolve each other with ethanol, ether and benzene.Unstable to thermokalite, stable to acid.By in the bulb being present in liliaceous plant garlic, the garlic aminoacid existed under big allinase effect, convert generation.Exist in the bulb of green onion.Having strong big garlic odour, taste is peppery.
Summary of the invention
It is an object of the invention to provide the sustained release agent that a kind of active ingredient is biogenic pesticide, be used for preventing and treating watermelon virus disease, instant effect of the present invention, holding effect are long, to non-Target crops safety.
Technical scheme is as follows:
A kind of active ingredient is the sustained release agent of biogenic pesticide, and in described sustained release agent, active ingredient is lentinan and allicin.
Further, in described sustained release agent, active ingredient is by weight percentage:
Lentinan 0.1-1%, allicin 0.1-1%；Preferably, lentinan 0.2-0.8%, allicin 0.2-0.8%；It is furthermore preferred that lentinan 0.5%, allicin 0.5%.
Preparing sustained release agent of the present invention, step is as follows:
The organic modified bentonite that bentonite is obtained 25-70 DEG C of reaction with organic cation surfactant, mix with the acetone soln of lentinan and allicin, organic modified bentonite is 2-5:1 with the mass ratio of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, and wherein, sodium alginate is 3.5-4:1 with the mass ratio of lentinan and allicin, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 1.5-2 hour；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50-600 micron.
Preparation method of organic modified bentonite is as follows:
Take 100g bentonite to add in 2L water, add 20g cetyl trimethylammonium bromide, be heated to 70 DEG C, continuing stirring 2 hours, centrifugation goes out solids, and with after distilled water washing 4 times, it is placed in 110 DEG C of baking ovens and is dried to constant weight, cross 100 mesh sieves after pulverizing, obtain organic modified bentonite.
The present invention is used for preventing and treating watermelon virus disease, and dispenser period is virosis early stage, and the dosage of preparation is 30-100 gram/acre；Preferably, preparation dosage is 40-80 gram/acre；It is furthermore preferred that preparation dosage is 55 grams/acre.
The present invention compared with prior art has the advantage that
The present invention is the composition pesticide that biological source antivirus is sick, after allicin is compounding with lentinan, there is obvious synergistic effect, the dosage of active ingredient can be reduced, the present invention effectively enhances the effect of the prevention to watermelon virus disease and treatment, instant effect, lasting period is long, on non-Target crops without impact.
Detailed description of the invention
Below in conjunction with specific embodiment further describe the present invention, advantages of the present invention and feature will be with describe and apparent.But embodiment is only exemplary, the scope of the present invention is not constituted any restriction.It will be understood by those skilled in the art that and the details of technical solution of the present invention and form can be modified or replace lower without departing from the spirit and scope of the present invention, but these amendments and replacement each fall within protection scope of the present invention.
1 one kinds of active ingredients of embodiment are the sustained release agent of biogenic pesticide
In described sustained release agent, active ingredient is by weight percentage:
Lentinan 0.5%, allicin 0.5%
The method preparing above-mentioned sustained release agent is as follows:
The organic modified bentonite that bentonite is obtained 55 DEG C of reactions with organic cation surfactant, mix with the acetone soln of lentinan and allicin, organic modified bentonite is 3:1 with the mass ratio of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, and wherein, sodium alginate is 3.5:1 with the mass ratio of lentinan and allicin, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 2 hours；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50-600 micron.
Preparation method of organic modified bentonite is as follows:
Take 100g bentonite to add in 2L water, add 20g cetyl trimethylammonium bromide, be heated to 70 DEG C, continuing stirring 2 hours, centrifugation goes out solids, and with after distilled water washing 4 times, it is placed in 110 DEG C of baking ovens and is dried to constant weight, cross 100 mesh sieves after pulverizing, obtain organic modified bentonite.
The sustained release agent that the embodiment of the present invention 1 obtains is used for preventing and treating watermelon virus disease, watermelon virus disease early stage dispenser, and preparation dosage is 55 grams/acre, and after a medicine, the prevention effect of 7 days and 30 days is respectively 79.5%, 84.2%.60 grams/acre of spray pesticides pressed by 0.5% lentinan aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 69.8%, 61.3%.2000 times of spray pesticides pressed by 0.5% allicin aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 30.2%, 21.4%.
2 one kinds of active ingredients of embodiment are the sustained release agent of biogenic pesticide
In described sustained release agent, active ingredient is by weight percentage:
Lentinan 0.1%, allicin 0.9%
The method preparing above-mentioned sustained release agent is as follows:
The organic modified bentonite that bentonite is obtained 40 DEG C of reactions with organic cation surfactant, mix with the acetone soln of lentinan and allicin, organic modified bentonite is 2.5:1 with the mass ratio of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, and wherein, sodium alginate is 4:1 with the mass ratio of lentinan and allicin, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 2 hours；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50-600 micron.
Preparation method of organic modified bentonite is as follows:
Take 100g bentonite to add in 2L water, add 20g cetyl trimethylammonium bromide, be heated to 70 DEG C, continuing stirring 2 hours, centrifugation goes out solids, and with after distilled water washing 4 times, it is placed in 110 DEG C of baking ovens and is dried to constant weight, cross 100 mesh sieves after pulverizing, obtain organic modified bentonite.
The sustained release agent that the embodiment of the present invention 2 obtains is used for preventing and treating watermelon virus disease, watermelon virus disease early stage dispenser, and preparation dosage is 40 grams/acre, and after a medicine, the prevention effect of 7 days and 30 days is respectively 76.4%, 80.3%.60 grams/acre of spray pesticides pressed by 0.5% lentinan aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 69.8%, 61.3%.2000 times of spray pesticides pressed by 0.5% allicin aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 30.2%, 21.4%.
3 one kinds of active ingredients of embodiment are the sustained release agent of biogenic pesticide
In described sustained release agent, each raw material components is by weight percentage:
Lentinan 0.2%, allicin 0.8%
The method preparing above-mentioned sustained release agent is as follows:
The organic modified bentonite that bentonite is obtained 60 DEG C of reactions with organic cation surfactant, mix with the acetone soln of lentinan and allicin, organic modified bentonite is 4:1 with the mass ratio of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, and wherein, sodium alginate is 3.7:1 with the mass ratio of lentinan and allicin, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 1.5 hours；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50-600 micron.
Preparation method of organic modified bentonite is as follows:
Take 100g bentonite to add in 2L water, add 20g cetyl trimethylammonium bromide, be heated to 70 DEG C, continuing stirring 2 hours, centrifugation goes out solids, and with after distilled water washing 4 times, it is placed in 110 DEG C of baking ovens and is dried to constant weight, cross 100 mesh sieves after pulverizing, obtain organic modified bentonite.
The sustained release agent that the embodiment of the present invention 3 obtains is used for preventing and treating watermelon virus disease, watermelon virus disease early stage dispenser, and preparation dosage is 45 grams/acre, and after a medicine, the prevention effect of 7 days and 30 days is respectively 77.8%, 81.1%.60 grams/acre of spray pesticides pressed by 0.5% lentinan aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 69.8%, 61.3%.2000 times of spray pesticides pressed by 0.5% allicin aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 30.2%, 21.4%.
4 one kinds of active ingredients of embodiment are the sustained release agent of biogenic pesticide
In described sustained release agent, each raw material components is by weight percentage:
Lentinan 0.7%, allicin 0.3%
The method preparing above-mentioned sustained release agent is as follows:
The organic modified bentonite that bentonite is obtained 55 DEG C of reactions with organic cation surfactant, mix with the acetone soln of lentinan and allicin, organic modified bentonite is 5:1 with the mass ratio of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, and wherein, sodium alginate is 4:1 with the mass ratio of lentinan and allicin, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 2 hours；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50-600 micron.
Preparation method of organic modified bentonite is as follows:
Take 100g bentonite to add in 2L water, add 20g cetyl trimethylammonium bromide, be heated to 70 DEG C, continuing stirring 2 hours, centrifugation goes out solids, and with after distilled water washing 4 times, it is placed in 110 DEG C of baking ovens and is dried to constant weight, cross 100 mesh sieves after pulverizing, obtain organic modified bentonite.
The sustained release agent that the embodiment of the present invention 1 obtains is used for preventing and treating watermelon virus disease, watermelon virus disease early stage dispenser, and preparation dosage is 65 grams/acre, and after a medicine, the prevention effect of 7 days and 30 days is respectively 78.4%, 82.9%.60 grams/acre of spray pesticides pressed by 0.5% lentinan aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 69.8%, 61.3%.2000 times of spray pesticides pressed by 0.5% allicin aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 30.2%, 21.4%.
5 one kinds of active ingredients of embodiment are the sustained release agent of biogenic pesticide
In described sustained release agent, each raw material components is by weight percentage:
Lentinan 0.8%, allicin 0.2%
The method preparing above-mentioned sustained release agent is as follows:
The organic modified bentonite that bentonite is obtained 40 DEG C of reactions with organic cation surfactant, mix with the acetone soln of lentinan and allicin, organic modified bentonite is 3.5:1 with the mass ratio of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, and wherein, sodium alginate is 3.5:1 with the mass ratio of lentinan and allicin, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 2 hours；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50-600 micron.
Preparation method of organic modified bentonite is as follows:
Take 100g bentonite to add in 2L water, add 20g cetyl trimethylammonium bromide, be heated to 70 DEG C, continuing stirring 2 hours, centrifugation goes out solids, and with after distilled water washing 4 times, it is placed in 110 DEG C of baking ovens and is dried to constant weight, cross 100 mesh sieves after pulverizing, obtain organic modified bentonite.
The sustained release agent that the embodiment of the present invention 5 obtains is used for preventing and treating watermelon virus disease, watermelon virus disease early stage dispenser, and preparation dosage is 55 grams/acre, and after a medicine, the prevention effect of 7 days and 30 days is respectively 76.9%, 81.5%.60 grams/acre of spray pesticides pressed by 0.5% lentinan aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 69.8%, 61.3%.2000 times of spray pesticides pressed by 0.5% allicin aqua, and after a medicine, the prevention effect of 7 days and 30 days is respectively 30.2%, 21.4%.
Claims (1)
1. an active ingredient is the sustained release agent of biogenic pesticide, it is characterised in that in described sustained release agent, active ingredient is by weight percentage:
Lentinan 0.5%, allicin 0.5%；
The method preparing above-mentioned sustained release agent is as follows:
The organic modified bentonite that bentonite is obtained 55 DEG C of reactions with organic cation surfactant, mix with the acetone soln of lentinan and allicin, organic modified bentonite is 3:1 with the mass ratio of lentinan and allicin, recycling design is evaporated under reduced pressure, obtains the organic modified bentonite kernel being adsorbed with lentinan and allicin of powder；Then this powder kernel being evenly spread to mass fraction is in 3% sodium alginate soln, and wherein, sodium alginate is 3.5:1 with the mass ratio of lentinan and allicin, is subsequently adding the chitosan oligosaccharide aqueous solution, and high speed homogenisation processes 2 hours；Regulation pH to after neutrality by gained suspension filtration under diminished pressure or centrifugation, solids portion after drying, obtains the microparticle shape sustained release agent that particle diameter is 50-600 micron；
Preparation method of organic modified bentonite is as follows:
Take 100g bentonite to add in 2L water, add 20g cetyl trimethylammonium bromide, be heated to 70 DEG C, continuing stirring 2 hours, centrifugation goes out solids, and with after distilled water washing 4 times, it is placed in 110 DEG C of baking ovens and is dried to constant weight, cross 100 mesh sieves after pulverizing, obtain organic modified bentonite；
Described sustained release agent is in preventing and treating watermelon virus disease；Dispenser period is watermelon virus disease early stage；Spraying times is 1 time, and the dosage of preparation is 55 grams/acre.
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| CN105168179B (en) * | 2015-08-04 | 2019-01-25 | 浙江汇能生物股份有限公司 | A kind of clopidol sustained release microparticle preparation and preparation method thereof |
| CN106106442A (en) * | 2016-06-25 | 2016-11-16 | 丁玉琴 | A kind of preparation method of the modified montmorillonite used pesticide slow-releasing agent of waste water from dyestuff |
| CN107197879A (en) * | 2017-06-08 | 2017-09-26 | 合肥龙滨化工科技有限公司 | A kind of active ingredient is the sustained release agent of biogenic pesticide |
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| CN102172247A (en) * | 2011-03-03 | 2011-09-07 | 广西田园生化股份有限公司 | Composition for preventing and treating virus diseases of crops |
| CN102388874B (en) * | 2011-09-30 | 2013-04-24 | 杨凌农科大无公害农药研究服务中心 | Eugenol and allicin compounded agent and application thereof |
| CN102939960B (en) * | 2012-11-06 | 2014-07-02 | 绍兴文理学院 | Sustained-release herbicide microparticle preparation and preparation method thereof |
| CN103719088B (en) * | 2013-12-25 | 2015-11-18 | 广西南宁碧湾园林工程有限公司 | A kind of biogenic pesticide composition and application thereof preventing and treating the viroses of plant |
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Inventor after: Feng Cheng Inventor before: You Xiaoming Inventor before: Wang Xiantao Inventor before: Li Yang Inventor before: Chi Wenquan Inventor before: Deng Shihai |
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Effective date of registration: 20171204 Address after: Yangqiao village Huai Fu Qiaokou ancient town 224427 Jiangsu County of Funing Province Patentee after: Yancheng Shuangning Agriculture Chemical Co., Ltd. Address before: 257335 Guangrao City, Dongying Province town of Rubber Industrial Park Patentee before: Shandong Yongtai Chemical Co., Ltd. |