CN110419543A - A kind of slow-release insecticide and preparation method thereof - Google Patents
A kind of slow-release insecticide and preparation method thereof Download PDFInfo
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- CN110419543A CN110419543A CN201910488122.2A CN201910488122A CN110419543A CN 110419543 A CN110419543 A CN 110419543A CN 201910488122 A CN201910488122 A CN 201910488122A CN 110419543 A CN110419543 A CN 110419543A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/12—Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/14—Celastraceae [Staff-tree or Bittersweet family], e.g. spindle tree, bittersweet or thunder god vine
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/38—Solanaceae [Potato family], e.g. nightshade, tomato, tobacco or chilli pepper
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Abstract
The invention discloses a kind of slow-release insecticides and preparation method thereof.By chitosan and sodium tripolyphosphate, cross-linking reaction forms nanoscale chitosan microball to the present invention in deionized water, during the reaction, crowndaisy chrysanthemum essential oil and composite vegetables extractive are wrapped in the inside of chitosan microball or are adsorbed on the surface of chitosan microball, there are slow release effects to crowndaisy chrysanthemum essential oil and composite vegetables extractive；Insecticide provided by the present invention is in suspension, and the stability of insecticide is improved by addition auxiliary agent；Slow-release insecticide provided by the invention is good to the control efficiency of pest and disease damage, and non agricultural chemical residuum, is a kind of insecticide of environment-friendly type.
Description
Technical field
The present invention relates to technical field of pesticide, in particular to a kind of slow-release insecticide and preparation method thereof.
Background technique
Synthesis chemical pesticide use scope due to being related to environmental problem is reducing, and pest and disease damage is to existing chemical pesticide
Drug resistance it is growing, there is an urgent need to find effect it is more preferable, using safer insecticide, and to its effective component into
Row improves.
Summary of the invention
The purpose of the present invention is to provide a kind of slow-release insecticides and preparation method thereof, to solve the above technical problems.
To achieve the goals above, the technical solution of the present invention is as follows:
A kind of preparation method of slow-release insecticide, includes the following steps:
(1) water soluble chitosan is dissolved in deionized water and is formulated chitosan solution；
(2) composite vegetables extractive and crowndaisy chrysanthemum essential oil are added in resulting chitosan solution, continue to stir evenly, then
Sodium tripolyphosphate solution is added, after stirring 0.5~2h, obtains suspension；
(3) auxiliary agent is added into step (2) resulting suspension, is uniformly mixing to obtain slow-release insecticide.
Preferably, in the step (1), the concentration of the chitosan solution is 2~10g/L.
Preferably, in the step (1), the molecular weight of the water soluble chitosan is 4~6kDa.
Preferably, in the step (2), the weight ratio of the composite vegetables extractive and the water soluble chitosan is
0.3~1:1.
Preferably, in the step (2), the preparation method of the composite vegetables extractive includes the following steps:
Slurries are broken into after Celastrus angulatus, neem tree leaf, tomato and water are mixed, and complex enzyme is added and is digested, is obtained by filtration
Enzymolysis liquid and filter residue pour into resulting filter residue in ethanol water, after mixing, at 70~90 DEG C be ultrasonically treated 1~
After 3h, through extracting solution is obtained by filtration, concentration, freeze-drying obtain composite vegetables extractive after extracting solution and enzymolysis liquid are merged.
It is further preferred that in the preparation method of the composite vegetables extractive, the Celastrus angulatus, neem tree leaf, tomato
Weight ratio be 1~5:0.5~3:10.
It is further preferred that in the preparation method of the composite vegetables extractive, the ethanol water and the filter residue
Weight ratio be 5~10:1.
It is further preferred that in the preparation method of the composite vegetables extractive, the matter of ethyl alcohol in the ethanol water
Measuring score is 70~90%.
It is further preferred that the complex enzyme includes protease, fiber in the preparation method of the composite vegetables extractive
One of plain enzyme and pectase are a variety of.
It is further preferred that the complex enzyme is 1~3 by weight ratio in the preparation method of the composite vegetables extractive:
Protease, cellulase and the pectase composition of 3~6:1.
It is further preferred that the weight of the complex enzyme is the hardship in the preparation method of the composite vegetables extractive
The 5~10% of the total weight of Pi Teng, neem tree leaf and tomato.
Preferably, in the step (2), the weight ratio of the crowndaisy chrysanthemum essential oil and the water soluble chitosan is 0.05~
0.2:1。
Preferably, in the step (2), the concentration of the sodium tripolyphosphate solution is 0.1~0.5g/L.
Preferably, in the step (2), the weight ratio of the sodium tripolyphosphate and the water soluble chitosan is 0.1~
0.3:1。
Preferably, in the step (3), the auxiliary agent is gathered by the triethylene glycol that weight ratio is 5~10:1 and hydroxy alkyl phenol
Ethylene oxide ether composition.
Preferably, in the step (3), the weight ratio of the auxiliary agent and the suspension is 0.01~0.1:1.
Compared with prior art, the beneficial effects of the present invention are:
Cross-linking reaction formation nanoscale chitosan is micro- in deionized water with sodium tripolyphosphate by chitosan by the present invention
Crowndaisy chrysanthemum essential oil and composite vegetables extractive are wrapped in the inside of chitosan microball or are adsorbed on shell and gathered by ball during the reaction
The surface of sugared microballoon, to crowndaisy chrysanthemum essential oil and composite vegetables extractive, there are slow release effects；Insecticide provided by the present invention is in outstanding
Supernatant liquid improves the stability of insecticide by addition auxiliary agent；Prevention and treatment of the slow-release insecticide provided by the invention to pest and disease damage
Effect is good, and non agricultural chemical residuum, is a kind of insecticide of environment-friendly type.
Specific embodiment
Specific embodiments of the present invention will be further explained below.It should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, this hair disclosed below
Technical characteristic involved in bright each embodiment can be combined with each other as long as they do not conflict with each other.
In following embodiment, the molecular weight of the water soluble chitosan is 5.8kDa.
Embodiment 1
The preparation method for present embodiments providing a kind of slow-release insecticide, includes the following steps:
(1) being dissolved in deionized water to be formulated concentration by water soluble chitosan is 8g/L chitosan solution；
(2) slurries are broken into after mixing Celastrus angulatus, neem tree leaf, tomato and water according to the weight ratio of 4:1:10:10, are added
It is digested by the complex enzyme that protease, cellulase and pectase that weight ratio is 2:5:1 form, the weight of the complex enzyme
Amount is the 7% of the total weight of the Celastrus angulatus, neem tree leaf and tomato, and enzymolysis liquid and filter residue is obtained by filtration, is according to weight ratio
The ratio of 8:1 is poured into resulting filter residue in the ethanol water that mass fraction is 85%, after mixing, surpasses at 80 DEG C
After sonication 2h, through extracting solution is obtained by filtration, concentration, freeze-drying obtain composite plant after extracting solution and enzymolysis liquid are merged
Extract；
(3) ratio for being 0.8:0.1:1 according to the weight ratio of composite vegetables extractive, crowndaisy chrysanthemum essential oil and water soluble chitosan
Example, composite vegetables extractive and crowndaisy chrysanthemum essential oil are added in chitosan solution, stirred evenly, and adding concentration is 0.3g/L
Sodium tripolyphosphate solution, wherein the weight ratio of the sodium tripolyphosphate and water soluble chitosan be 0.2:1, stir 1.5h
Afterwards, suspension is obtained；
(4) ratio for being 0.08:1 according to the weight ratio of auxiliary agent and suspension is added into resulting suspension by weight
Than the auxiliary agent of triethylene glycol and hydroxy alkyl phenol polyethenoxy ether composition for 7:1, it is uniformly mixing to obtain insecticide.
Comparative example 1
Enzymolysis liquid and extracting solution is made according to the method for above-mentioned steps (2) in this comparative example, enzymolysis liquid and extracting solution is merged straight
It connects and is used as insecticide.
Beneficial effect in order to further illustrate the present invention, the present invention exist to embodiment 1 and the resulting insecticide of comparative example 1
The test of indoor virulence activity level is carried out under unified experiment condition: test worm is sugarcane aphid, by 1 gained of embodiment 1 and comparative example
Insecticide add deionized water to dilute 100 times respectively after, the Sugarcane Leaves of fresh cleaning are respectively put into, by sugarcane top after leaching 5s
Piece takes out and naturally dry, and then Sugarcane Leaves are put into culture dish, is placed with 50 test worms in each culture dish, and 24 hours
Afterwards, the death rate of test worm is investigated.
After tested, the resulting insecticide of embodiment 1 is significant to the toxic effect of sugarcane aphid, after processing for 24 hours, test worm it is dead
The rate of dying reaches 92%, and after the processing of the resulting insecticide of comparative example 1 for 24 hours, the death rate of test worm is only 64%.
Embodiment 2
The preparation method for present embodiments providing a kind of slow-release insecticide, includes the following steps:
(1) being dissolved in deionized water to be formulated concentration by water soluble chitosan is 8g/L chitosan solution；
(2) slurries are broken into after mixing Celastrus angulatus, neem tree leaf, tomato and water according to the weight ratio of 1:3:10:10, are added
It is digested by the complex enzyme that protease, cellulase and pectase that weight ratio is 1:3:1 form, the weight of the complex enzyme
Amount is the 10% of the total weight of the Celastrus angulatus, neem tree leaf and tomato, enzymolysis liquid and filter residue is obtained by filtration, according to weight ratio
For the ratio of 8:1, resulting filter residue is poured into the ethanol water that mass fraction is 80%, after mixing, at 85 DEG C
After being ultrasonically treated 2h, through extracting solution is obtained by filtration, concentration, freeze-drying obtain compound plant after extracting solution and enzymolysis liquid are merged
Object extract；
(3) ratio for being 1:0.05:1 according to the weight ratio of composite vegetables extractive, crowndaisy chrysanthemum essential oil and water soluble chitosan,
Composite vegetables extractive and crowndaisy chrysanthemum essential oil are added in chitosan solution, stirred evenly, three that concentration is 0.3g/L are added
Polyphosphate sodium solution, wherein the weight ratio of the sodium tripolyphosphate and water soluble chitosan is that 0.2:1 is obtained after stirring 2h
Suspension；
(4) ratio for being 0.05:1 according to the weight ratio of auxiliary agent and suspension is added into resulting suspension by weight
Than the auxiliary agent of triethylene glycol and hydroxy alkyl phenol polyethenoxy ether composition for 5~10:1, it is uniformly mixing to obtain insecticide.
It is tested through indoor virulence activity level, insecticide is significant to the toxic effect of sugarcane aphid, after processing for 24 hours, test worm
The death rate reach 84%.
Embodiment 3
The preparation method for present embodiments providing a kind of slow-release insecticide, includes the following steps:
(1) being dissolved in deionized water to be formulated concentration by water soluble chitosan is 8g/L chitosan solution；
(2) slurries are broken into after mixing Celastrus angulatus, neem tree leaf, tomato and water according to the weight ratio of 5:0.5:10:10, are added
Enter and is digested by the complex enzyme that protease, cellulase and pectase that weight ratio is 3:6:1 form, the complex enzyme
Weight is the 7% of the total weight of the Celastrus angulatus, neem tree leaf and tomato, enzymolysis liquid and filter residue is obtained by filtration, according to weight ratio
For the ratio of 8:1, resulting filter residue is poured into the ethanol water that mass fraction is 80%, after mixing, at 80 DEG C
After being ultrasonically treated 3h, through extracting solution is obtained by filtration, concentration, freeze-drying obtain compound plant after extracting solution and enzymolysis liquid are merged
Object extract；
(3) ratio for being 0.3:0.05:1 according to the weight ratio of composite vegetables extractive, crowndaisy chrysanthemum essential oil and water soluble chitosan
Example, composite vegetables extractive and crowndaisy chrysanthemum essential oil are added in chitosan solution, stirred evenly, and adding concentration is 0.3g/L
Sodium tripolyphosphate solution, wherein the weight ratio of the sodium tripolyphosphate and water soluble chitosan be 0.2:1, stir 2h after,
Obtain suspension；
(4) ratio for being 0.07:1 according to the weight ratio of auxiliary agent and suspension is added into resulting suspension by weight
Than the auxiliary agent of triethylene glycol and hydroxy alkyl phenol polyethenoxy ether composition for 8:1, it is uniformly mixing to obtain insecticide.
It is tested through indoor virulence activity level, insecticide is significant to the toxic effect of sugarcane aphid, after processing for 24 hours, test worm
The death rate reach 88%.
Embodiment 4
Insecticide is made using preparation method similar to Example 1, the difference of the present embodiment and embodiment 1 is only that multiple
The dosage for closing the raw material of plant extracts is different, in the raw material of the composite vegetables extractive of the present embodiment, Celastrus angulatus, print chinaberry
Leaf, tomato weight ratio be 2:1:10.
It is tested through indoor virulence activity level, insecticide is significant to the toxic effect of sugarcane aphid, after processing for 24 hours, test worm
The death rate reach 90%.
Embodiment 5
Insecticide is made using preparation method similar to Example 1, the difference of the present embodiment and embodiment 1 is only that multiple
The dosage for closing the raw material of plant extracts is different, in the raw material of the composite vegetables extractive of the present embodiment, Celastrus angulatus, print chinaberry
Leaf, tomato weight ratio be 3:1:10.
It is tested through indoor virulence activity level, insecticide is significant to the toxic effect of sugarcane aphid, after processing for 24 hours, test worm
The death rate reach 94%.
Embodiment 6
Insecticide is made using preparation method similar to Example 1, the difference of the present embodiment and embodiment 1 is only that multiple
The dosage for closing the raw material of plant extracts is different, in the raw material of the composite vegetables extractive of the present embodiment, Celastrus angulatus, print chinaberry
Leaf, tomato weight ratio be 5:1:10.
It is tested through indoor virulence activity level, insecticide is significant to the toxic effect of sugarcane aphid, after processing for 24 hours, test worm
The death rate reach 90%.
Above the embodiments of the present invention are described in detail, but the present invention is not limited to described embodiments.It is right
For those skilled in the art, in the case where not departing from the principle of the invention and spirit, these embodiments are carried out more
Kind change, modification, replacement and modification, still fall in protection scope of the present invention.
Claims (10)
1. a kind of preparation method of slow-release insecticide, which comprises the steps of:
(1) water soluble chitosan is dissolved in deionized water and is formulated chitosan solution；
(2) composite vegetables extractive and crowndaisy chrysanthemum essential oil are added in resulting chitosan solution, continue to stir evenly, adds
Sodium tripolyphosphate solution obtains suspension after stirring 0.5~2h；
(3) auxiliary agent is added into step (2) resulting suspension, is uniformly mixing to obtain slow-release insecticide.
2. the preparation method of slow-release insecticide according to claim 1, which is characterized in that the chitosan solution it is dense
Degree is 2~10g/L.
3. the preparation method of slow-release insecticide according to claim 1, which is characterized in that the water soluble chitosan
Molecular weight is 4~6kDa.
4. the preparation method of slow-release insecticide according to claim 1, which is characterized in that the composite vegetables extractive
Weight ratio with the water soluble chitosan is 0.3~1:1.
5. the preparation method of slow-release insecticide according to claim 1, which is characterized in that the composite vegetables extractive
To be made using following methods:
Slurries are broken into after Celastrus angulatus, neem tree leaf, tomato and water are mixed, and complex enzyme is added and is digested, enzymatic hydrolysis is obtained by filtration
Liquid and filter residue pour into resulting filter residue in ethanol water, after mixing, after being ultrasonically treated 1~3h at 70~90 DEG C,
Through extracting solution is obtained by filtration, concentration, freeze-drying obtain composite vegetables extractive after extracting solution and enzymolysis liquid are merged.
6. the preparation method of slow-release insecticide according to claim 5, which is characterized in that the Celastrus angulatus, neem tree
Leaf, tomato weight ratio be 1~5:0.5~3:10.
7. the preparation method of slow-release insecticide according to claim 5, which is characterized in that the complex enzyme includes albumen
One of enzyme, cellulase and pectase are a variety of.
8. the preparation method of slow-release insecticide according to claim 5, which is characterized in that the weight of the complex enzyme is
The 5~10% of the total weight of the Celastrus angulatus, neem tree leaf and tomato.
9. the preparation method of slow-release insecticide according to claim 5, which is characterized in that the crowndaisy chrysanthemum essential oil with it is described
The weight ratio of water soluble chitosan is 0.05~0.2:1.
10. the preparation method of slow-release insecticide according to claim 1, which is characterized in that in the step (3), institute
Auxiliary agent is stated to be made of the triethylene glycol and hydroxy alkyl phenol polyethenoxy ether that weight ratio is 5~10:1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112457126A (en) * | 2021-02-01 | 2021-03-09 | 江西绿博士生物科技有限公司 | Cortex meliae extract microcapsule, preparation method and application in soil improvement fertilizer |
| CN114304171A (en) * | 2022-01-11 | 2022-04-12 | 甘肃省科学院生物研究所 | Seed coating agent of ligularia virgaurea extract and preparation method and application thereof |
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| CN114304171A (en) * | 2022-01-11 | 2022-04-12 | 甘肃省科学院生物研究所 | Seed coating agent of ligularia virgaurea extract and preparation method and application thereof |
| CN114304171B (en) * | 2022-01-11 | 2023-11-28 | 甘肃省科学院生物研究所 | Ligularia virgaurea extract seed coating agent and preparation method and application thereof |
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