CN105123798A - Method for preventing and treating loquat gray spot - Google Patents
Method for preventing and treating loquat gray spot Download PDFInfo
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- CN105123798A CN105123798A CN201510451510.5A CN201510451510A CN105123798A CN 105123798 A CN105123798 A CN 105123798A CN 201510451510 A CN201510451510 A CN 201510451510A CN 105123798 A CN105123798 A CN 105123798A
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- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 34
- 239000003899 bactericide agent Substances 0.000 claims abstract description 32
- 239000003094 microcapsule Substances 0.000 claims abstract description 32
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- 238000002360 preparation method Methods 0.000 claims description 12
- UYWWLYCGNNCLKE-UHFFFAOYSA-N 2-pyridin-4-yl-1h-benzimidazole Chemical compound N=1C2=CC=CC=C2NC=1C1=CC=NC=C1 UYWWLYCGNNCLKE-UHFFFAOYSA-N 0.000 claims description 11
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- 229920001213 Polysorbate 20 Polymers 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 239000005820 Prochloraz Substances 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 3
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- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- TVLSRXXIMLFWEO-UHFFFAOYSA-N prochloraz Chemical compound C1=CN=CN1C(=O)N(CCC)CCOC1=C(Cl)C=C(Cl)C=C1Cl TVLSRXXIMLFWEO-UHFFFAOYSA-N 0.000 claims description 3
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- HZJKXKUJVSEEFU-UHFFFAOYSA-N 2-(4-chlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)hexanenitrile Chemical compound C=1C=C(Cl)C=CC=1C(CCCC)(C#N)CN1C=NC=N1 HZJKXKUJVSEEFU-UHFFFAOYSA-N 0.000 abstract description 4
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- YFNCATAIYKQPOO-UHFFFAOYSA-N thiophanate Chemical compound CCOC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OCC YFNCATAIYKQPOO-UHFFFAOYSA-N 0.000 description 1
- 239000005418 vegetable material Substances 0.000 description 1
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Abstract
The invention discloses a method for preventing and treating loquat gray spot. A microcapsule bactericide is prepared from plant-derived extract and a conventional bactericide. The microcapsule bactericide is prepared from 15-25% by mass of plant-derived extract, 10-20% by mass of mancozeb, 10-15% by mass of myclobutanil, 5-12% by mass of methyl 2-benzimidazolecarbamate, 0.6-1% by mass of a surfactant, 0.3-0.5% by mass of a stabilizing agent and the balance water. The plant-derived extract bactericide comprises, by weight, 20-30 parts of herba polygoni avicularis, 10-20 parts of Solanum nigrum L., 10-15 parts of sweet wormwood, 5-10 parts of pine needle oil and 2-4 parts of stellera chameajasme. Through use of a microcapsule form, incompatible components are uniformly mixed so that component synergism is improved. Through overall consideration of a relationship of plant materials as monarch, minister, assistant and guide, effects of preventing and treating loquat gray spot are obviously improved and integrated prevention and treatment efficiency is 90% or more.
Description
Technical field
The present invention relates to the disease control of loquat, be specifically related to a kind of method of preventing and treating Loquat Leaf Spot.
Background technology
Compare with traditional chemical agricultural chemicals, botanical pesticide have raw material to be easy to get, action site is many, pest not easily develops immunity to drugs, easily degraded, low-residual, to the natural enemy insect harm advantage such as less and environmentally safe.High active substance is filtered out from natural products, be templated synthesis new chemical agricultural chemicals with it, or be directly developed to efficient, low toxicity, low-residual, natural source pesticidal preparations with harmonious environment, having become important and one of the effective approach of of New pesticides discovery, is the developing direction of pesticide in future.
Loquat Leaf Spot, infringement blade, limb, fruit, on leaf, scab has acute to ease up slow type two class.Acute forms large stretch of scab on leaf, or blade is shrivelled, falls leaves in a large number.At the Retarder theory scab initial stage, there is filbert round dot in blade, after be unified into irregular large spot, there is narrow black endless belt at edge, central authorities greyish white or lark, upper scattered black point.On branch, scab has gummosis type and withered type two class, and symptom is all similar to limb rot, and happening part has collar, trunk, side shoot etc.Gummosis type scab has soft corruption and gummosis.Withered type scab makes bark dry up, ftractures, levers up, seriously peels off.The scab of infringement fruit, circular, puce, rear significant depressions, upper scattered pore.
Prevent and treat this disease based on prevention and chemical control, strengthen fertile training at ordinary times, strengthen tree vigo(u)r; Avoid canopy humidity too high; And fallen leaves, decayed fruit will be removed, reduce pathogeny.Spray 50% topsin, 500 ~ 600 times of liquid; Or 65% zineb, 500 ~ 600 times of liquid; Or 80% large life M-45600 times of liquid control.To before blooming after fruit picking, available 0.3%-0.4% bordeaux mixture control.Long-Time Service easily develops immunity to drugs.For the medicine based on herbs in currently available technology, be mostly arbitrarily combine according to the effect of each composition, do not consider the relation of the monarch between various composition, not only cause the effect after combining not increase, the effect after combination can be affected on the contrary.
Botanical fungicide is not adopted to be specifically designed to the report of control Loquat Leaf Spot in prior art yet.
Summary of the invention
The present invention is directed to some problems in currently available technology, considered the relation of the Synergistic between vegetable material, the prevention and controls of the Loquat Leaf Spot of drug effect after providing a kind of combination, can be significantly improved.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
A kind of method of preventing and treating Loquat Leaf Spot, the microcapsules bactericide using plant resource extract as active fraction preparation is adopted to prevent and treat, wherein, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 15 ~ 25%, mancozeb 10 ~ 20%, nitrile bacterium azoles 10 ~ 15%, 2-benzimidazole ylcarbamic acid methyl ester 5 ~ 12%, surfactant 0.6 ~ 1%, stabilizing agent 0.3 ~ 0.5%, and surplus is water; Described plant resource extract is prepared by following methods:
Get Armstrong 20 ~ 30kg, black nightshade 10 ~ 20kg, sweet wormwood 10 ~ 15kg, pine needle oil 5 ~ 10kg, Chinese Stellera Root 2 ~ 4kg respectively, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 50-80% ethanol and carry out lixiviate as Extraction solvent, extract, after Vacuum Concentration refilters, namely obtains plant resource extract.
Preferably, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 25%, Prochloraz 15%, nitrile bacterium azoles 12%, Tween-20 7%, surfactant 0.8%, stabilizing agent 0.4%, surplus is water.
Preferably the consisting of of plant in described plant extraction liquid: Armstrong 25kg, black nightshade 15kg, sweet wormwood 12kg, pine needle oil 8kg, Chinese Stellera Root 3kg.
In the method for aforementioned control Loquat Leaf Spot, described surfactant is the one in sodium lignin sulfonate, CMC, polyvinyl alcohol.
In the method for aforementioned control Loquat Leaf Spot, described stabilizing agent is the one in polypropylene glycol oxirane ether, NaLS, dodecyl sodium sulfate or polyethylene glycol.
In the method for aforementioned control Loquat Leaf Spot, the temperature of described lixiviate is 80 ~ 90 DEG C, and extraction time is 15 ~ 20 hours.
In the method for aforementioned control Loquat Leaf Spot, the preparation method of described microcapsules bactericide is:
(1) plant resource extract is prepared: Armstrong, black nightshade, sweet wormwood, pine needle oil, Chinese Stellera Root are proportionally mixed, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 50 ~ 80% ethanol and carry out lixiviate as Extraction solvent, Extracting temperature is 80 ~ 90 DEG C, extraction time is obtain extract in 15 ~ 20 hours, extract, after Vacuum Concentration refilters, namely obtains plant resource extract;
(2) mix with step (1) gained material again after surfactant and the mixed solution of stabilizing agent being added mancozeb, nitrile bacterium azoles, 2-benzimidazole ylcarbamic acid methyl ester, put into mulser and stir 10 ~ 20 minutes with 8000 ~ 12000rpm speed; Under 40 ~ 55 DEG C of conditions, steam organic solvent, solidification encystation, filtration dewaters, and obtains microcapsules bactericide.
Beneficial effect of the present invention:
The form of microcapsules made by bactericide by the present invention, mixes with can making incompatible uniform composition, strengthens the effect of its mutual Synergistic.
The plant compatibility of the application is the interaction of the state of an illness according to Loquat Leaf Spot and plant, select Armstrong, black nightshade, sweet wormwood, pine needle oil, Chinese Stellera Root is mixed and made into plant resource extract, wherein Armstrong is monarch, black nightshade, sweet wormwood is minister, pine needle oil is assistant, Chinese Stellera Root is for making, object is the state of an illness adapting to complicated Loquat Leaf Spot, prophylactic agent is poisoning, this formula is on the basis of differential diagnosis in tcm, according to the performance of Four Plants sterilization and correlation compatibility, therefore, the overall compatibility of the application, though emphasize particularly on different fields between main points, but connect each other, a unified entirety, only have during embody rule and organically combine four, just can reach the promising result of medicine Synergistic biocidal.
Botanical fungicide and conventional sterilization agent combine use by the present invention, and make the form of microcapsules, can the generation of effectively preventing Loquat Leaf Spot, and combined therapy effect is better, also not easily produces resistance.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The embodiment of the present invention comprises:
Embodiment 1
A kind of method of preventing and treating Loquat Leaf Spot, the microcapsules bactericide using plant resource extract as active fraction preparation is adopted to prevent and treat, wherein, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 15%, mancozeb 10%, nitrile bacterium azoles 10%, 2-benzimidazole ylcarbamic acid methyl ester 5%, sodium lignin sulfonate 0.6%, polypropylene glycol oxirane ether 0.3%, and surplus is water;
Prepare microcapsules bactericide by the following method:
(1) plant resource extract is prepared: Armstrong 20kg, black nightshade 10kg, sweet wormwood 10kg, pine needle oil 5kg, Chinese Stellera Root 2kg are proportionally mixed, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 50% ethanol and carry out lixiviate as Extraction solvent, Extracting temperature is 90 DEG C, extraction time is obtain extract in 15 hours, extract, after Vacuum Concentration refilters, namely obtains plant resource extract;
(2) mix with step (1) gained material again after surfactant and the mixed solution of stabilizing agent being added mancozeb, nitrile bacterium azoles, 2-benzimidazole ylcarbamic acid methyl ester, put into mulser and stir 20 minutes with 8000rpm speed; Under 40 DEG C of conditions, steam organic solvent, solidification encystation, filtration dewaters, and obtains microcapsules bactericide.
Embodiment 2
A kind of method of preventing and treating Loquat Leaf Spot, the microcapsules bactericide using plant resource extract as active fraction preparation is adopted to prevent and treat, wherein, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 25%, Prochloraz 15%, nitrile bacterium azoles 12%, Tween-20 7%, CMC 0.8%, NaLS 0.4%, surplus is water.
The preparation method of microcapsules bactericide is:
(1) plant resource extract is prepared: Armstrong 25kg, black nightshade 15kg, sweet wormwood 12kg, pine needle oil 8kg, Chinese Stellera Root 3kg are proportionally mixed, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 65% ethanol and carry out lixiviate as Extraction solvent, Extracting temperature is 85 DEG C, extraction time is obtain extract in 18 hours, extract, after Vacuum Concentration refilters, namely obtains plant resource extract;
(2) mix with step (1) gained material again after surfactant and the mixed solution of stabilizing agent being added mancozeb, nitrile bacterium azoles, 2-benzimidazole ylcarbamic acid methyl ester, put into mulser and stir 15 minutes with 10000rpm speed; Under 50 DEG C of conditions, steam organic solvent, solidification encystation, filtration dewaters, and obtains microcapsules bactericide.
Embodiment 3
A kind of method of preventing and treating Loquat Leaf Spot, the microcapsules bactericide using plant resource extract as active fraction preparation is adopted to prevent and treat, wherein, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 25%, mancozeb 20%, nitrile bacterium azoles 15%, 2-benzimidazole ylcarbamic acid methyl ester 12%, polyvinyl alcohol 1%, dodecyl sodium sulfate 0.5%, and surplus is water; Described plant resource extract is prepared by following methods:
The preparation method of microcapsules bactericide is:
(1) plant resource extract is prepared: Armstrong 30kg, black nightshade 20kg, sweet wormwood 15kg, pine needle oil 10kg, Chinese Stellera Root 4kg are mixed, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 80% ethanol and carry out lixiviate as Extraction solvent, Extracting temperature is 90 DEG C, extraction time is obtain extract in 15 hours, extract, after Vacuum Concentration refilters, namely obtains plant resource extract;
(2) mix with step (1) gained material again after surfactant and the mixed solution of stabilizing agent being added mancozeb, nitrile bacterium azoles, 2-benzimidazole ylcarbamic acid methyl ester, put into mulser and stir 10 minutes with 12000rpm speed; Under 55 DEG C of conditions, steam organic solvent, solidification encystation, filtration dewaters, and obtains microcapsules bactericide.
Embodiment 4
A kind of method of preventing and treating Loquat Leaf Spot, the microcapsules bactericide using plant resource extract as active fraction preparation is adopted to prevent and treat, wherein, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 20%, mancozeb 20%, nitrile bacterium azoles 10%, 2-benzimidazole ylcarbamic acid methyl ester 12%, CMC 1%, polyethylene glycol 0.4%, and surplus is water; Described plant resource extract is prepared by following methods:
The preparation method of described microcapsules bactericide is:
(1) plant resource extract is prepared: Armstrong 28kg, black nightshade 12kg, sweet wormwood 10kg, pine needle oil 10kg, Chinese Stellera Root 4kg are mixed, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 70% ethanol and carry out lixiviate as Extraction solvent, Extracting temperature is 85 DEG C, extraction time is obtain extract in 20 hours, extract, after Vacuum Concentration refilters, namely obtains plant resource extract;
(2) mix with step (1) gained material again after surfactant and the mixed solution of stabilizing agent being added mancozeb, nitrile bacterium azoles, 2-benzimidazole ylcarbamic acid methyl ester, put into mulser and stir 15 minutes with 12000rpm speed; Under 45 DEG C of conditions, steam organic solvent, solidification encystation, filtration dewaters, and obtains microcapsules bactericide.
Microcapsules bactericide embodiment 1 ~ 4 prepared 600 times of liquid measures carry out blade face conventional spray, Carmazine 600 times of liquid, myclobutanil fungicide 600 times of liquid, carbendazim 600 times of liquid are respectively contrast medicament and carry out blade face conventional spray, and establish clear water to contrast, result shows, the application, Carmazine, myclobutanil fungicide, carbendazim is relative to contrast, the control efficiency certain to the equal tool of Loquat Leaf Spot, but the application's bactericidal effect is relative to Carmazine, myclobutanil fungicide, Bavistin carries out separately sterilization and improves 30% respectively, 34%, 21%, the comprehensive bactericidal effect of the application reaches more than 90%.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. prevent and treat the method for Loquat Leaf Spot for one kind, it is characterized in that, the microcapsules bactericide using plant resource extract as active fraction preparation is adopted to prevent and treat, wherein, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 15 ~ 25%, mancozeb 10 ~ 20%, nitrile bacterium azoles 10 ~ 15%, 2-benzimidazole ylcarbamic acid methyl ester 5 ~ 12%, surfactant 0.6 ~ 1%, stabilizing agent 0.3 ~ 0.5%, and surplus is water; Described plant resource extract is prepared by following methods:
Get Armstrong 20 ~ 30kg, black nightshade 10 ~ 20kg, sweet wormwood 10 ~ 15kg, pine needle oil 5 ~ 10kg, Chinese Stellera Root 2 ~ 4kg respectively, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 50-80% ethanol and carry out lixiviate as Extraction solvent, extract, after Vacuum Concentration refilters, namely obtains plant resource extract.
2. the method for control Loquat Leaf Spot according to claim 1, it is characterized in that, described microcapsules bactericide is prepared by mass percentage by following raw material: plant resource extract 25%, Prochloraz 15%, nitrile bacterium azoles 12%, Tween-20 7%, surfactant 0.8%, stabilizing agent 0.4%, surplus is water.
3. the method for control Loquat Leaf Spot according to claim 1, is characterized in that, the consisting of of plant in described plant extraction liquid: Armstrong 25kg, black nightshade 15kg, sweet wormwood 12kg, pine needle oil 8kg, Chinese Stellera Root 3kg.
4. the method for control Loquat Leaf Spot according to claim 1, is characterized in that, described surfactant is the one in sodium lignin sulfonate, CMC, polyvinyl alcohol.
5. the method for control Loquat Leaf Spot according to claim 1, is characterized in that, described stabilizing agent is the one in polypropylene glycol oxirane ether, NaLS, dodecyl sodium sulfate or polyethylene glycol.
6. the method for control Loquat Leaf Spot according to claim 1, is characterized in that, the temperature of described lixiviate is 80 ~ 90 DEG C, and extraction time is 15 ~ 20 hours.
7. the method for the control Loquat Leaf Spot according to claim 1 ~ 6 any one, is characterized in that, the preparation method of described microcapsules bactericide is:
(1) plant resource extract is prepared: Armstrong, black nightshade, sweet wormwood, pine needle oil, Chinese Stellera Root are proportionally mixed, mixing after mincing with the meal that plant tissue cracker is crushed to 1mm ~ 3mm, the meal of gained is minced and adds container 50 ~ 80% ethanol and carry out lixiviate as Extraction solvent, Extracting temperature is 80 ~ 90 DEG C, extraction time is obtain extract in 15 ~ 20 hours, extract, after Vacuum Concentration refilters, namely obtains plant resource extract;
(2) mix with step (1) gained material again after surfactant and the mixed solution of stabilizing agent being added mancozeb, nitrile bacterium azoles, 2-benzimidazole ylcarbamic acid methyl ester, put into mulser and stir 10 ~ 20 minutes with 8000 ~ 12000rpm speed; Under 40 ~ 55 DEG C of conditions, steam organic solvent, solidification encystation, filtration dewaters, and obtains microcapsules bactericide.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115636943A (en) * | 2022-09-28 | 2023-01-24 | 浙江工业大学 | Acetoxy (2-aminobenzimidazole) -zinc complex and preparation method and application thereof |
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| CN115636943A (en) * | 2022-09-28 | 2023-01-24 | 浙江工业大学 | Acetoxy (2-aminobenzimidazole) -zinc complex and preparation method and application thereof |
| CN115636943B (en) * | 2022-09-28 | 2023-07-18 | 浙江工业大学 | A kind of acetoxy (2-aminobenzimidazole)-zinc complex and its preparation method and application |
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