CN108541717A - A kind of nimbin and pyrethrin complex microemulsion and preparation method thereof - Google Patents
A kind of nimbin and pyrethrin complex microemulsion and preparation method thereof Download PDFInfo
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- CN108541717A CN108541717A CN201810830950.5A CN201810830950A CN108541717A CN 108541717 A CN108541717 A CN 108541717A CN 201810830950 A CN201810830950 A CN 201810830950A CN 108541717 A CN108541717 A CN 108541717A
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- pyrethrin
- nimbin
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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
- A01N25/02—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 liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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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
- 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
-
- 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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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Mycology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Pest Control & Pesticides (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Botany (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of nimbins and pyrethrin complex microemulsion and preparation method thereof, first 0.1~3% nimbin, 0.1~5% pyrethrin, 10~15% ethyl alcohol, 5~15% isopropanols, 5~15% isobutanols, 5~10% isoamyl alcohol, 5~10% propylene glycol, 5~15% agriculture breasts 1601,5~10% agriculture breasts 1602,1~5% polysorbas20,1~5% Tween 80,1~4% organosilicon SiLwet408,5~10% piperonyl butoxides, 3~10% azones, 0.1~1%BHT and 0.1~1% benzophenone are uniformly mixed, group becomes oil phase；Then the deionized water of polishing 100% is slowly added under 60 revs/min of stirring conditions among oil phase, continue stirring to liquid it is uniform, it is transparent be microemulsion finished product.Nimbin provided by the invention and pyrethrin complex microemulsion preparation method are simple for process, and the medicament of gained microemulsion is stable, efficient, both it had played pyrethrin and has killed the delay drug effect for also achieving nimbin to the speed of pest, and can be widely applied to the control of insect of organic farm products.
Description
Technical field
The present invention relates to the technical fields of pollution-free natural plant insecticide microemulsion, particularly relate to a kind of print
Chinaberry element and pyrethrin complex microemulsion and preparation method thereof.
Background technology
For the relatively other such as aqueous emulsions of microemulsion liquid insecticide, missible oil liquid pesticide, it is environmental-friendly with it is high
Effect has been universally acknowledged.But it prepares microemulsion to require active compound in water to stablize and can just be prepared into microemulsion to be oil-soluble.
Nimbin (AZadirachtin) is a kind of biological insecticides extracted in neem tree benevolence, can be prevented more than 200
Kind of agriculture, woods, storage and indoor sanitary insect pest are universally acknowledged wide spectrum, efficient, less toxic, degradable, noresidue insecticide.
Pyrethrin (PYrthrins) is derived from the biological insecticides of composite family natural plant, containing six kinds of insecticidal activities at
Point, pest is not likely to produce drug resistance, has and quickly knocks down the special effective function of pest, can be widely used for agriculture, woods, herds and urban health
Control of insect.
Due to the property of nimbin and pyrethrin facile hydrolysis, they are mostly the dosage form supply of missible oil on the market.Especially
It is that nimbin is not reported with pyrethrin complex microemulsion.
Invention content
To solve the problems mentioned above in the background art, the purpose of the present invention is to provide a kind of nimbin and Dalmatian chrysanthemums
Plain complex microemulsion and preparation method thereof, have efficiently, high stability, solve under the conditions of water base prepare obtained by nimbin with
The drug effect of pyrethrin complex microemulsion and the problem of being difficult to ensure of stability, to realize the traditional high poison agriculture of large batch of replacement
Medicine and meet environmentally protective with people's life health needs.
To achieve the above object, the technical solution that the present invention takes is：
A kind of nimbin of present invention offer and pyrethrin complex microemulsion preparation method, include the following steps：
Step 1: weight percent accounting 21.2-61% surfactants and weight percent accounting 30-65% low-carbon alcohols are helped
Surfactant is uniformly mixed, and group becomes oil phase；
Step 2: being 0.1~3% nimbin by weight percent accounting and weight percent accounting is 0.1~5% pyrethrin
It is dissolved among the oil phase obtained by step 1；
Step 3: under 60 revs/min of stirring conditions, by quantitative polishing weight percent be 100% deionized water slowly
Be added obtained by step 2 dissolved in the oil phase of nimbin and pyrethrin, and it is uniform, transparent to continue stirring until solution, obtains oil
Packet water microemulsion, as finished product.
In above-mentioned technical proposal, low-carbon alcohols cosurfactant includes following components by weight percentage：10~15%
Ethyl alcohol, 5~15% isopropanols, 5~15% isobutanols, 5~10% isoamyl alcohol and 5~10% propylene glycol.
In above-mentioned technical proposal, nonionic surfactant includes following components by weight percentage：5~15% agriculture breasts
1601,5~10% agriculture breasts 1602,1~5% polysorbas20,1~5% Tween 80,1~4% organosilicon SiLwet408,5~10%
Piperonyl butoxide, 3~10% azones, 0.1~1%BHT and 0.1~1% benzophenone.
The present invention also provides a kind of nimbins and pyrethrin complex microemulsion, include with the following group by weight percentage
Point：0.1~3% nimbin, 0.1~5% pyrethrin, 10~15% ethyl alcohol, 5~15% isopropanols, 5~15% isobutanols, 5
~10% isoamyl alcohol, 5~10% propylene glycol, 5~15% agriculture breasts 1601,5~10% agriculture breasts 1602,1~5% polysorbas20,1~
5% Tween 80,1~4% organosilicon SiLwet408,5~10% piperonyl butoxides, 3~10% azones, 0.1~1%BHT and
0.1~1% benzophenone, surplus are water.
Further, a kind of nimbin and pyrethrin complex microemulsion include following components by weight percentage：
0.25% nimbin, 1.45% pyrethrin, 10% ethyl alcohol, 10% isopropanol, 10% isobutanol, 5% isoamyl alcohol, 5% the third two
Alcohol, 10% agriculture breast 1601,5% agriculture breast 1602,3% polysorbas20,2% Tween 80,2% organosilicon SiLwet408,5% piperonyl
Butyl ether, 3% azone, 0.1%BHT and 0.1% benzophenone, surplus are water.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention allows water phase by micro- in the microemulsion of water-in-oil type using the characteristic that can have " water core " in micro-emulsion systems
Ball wraps up, and so that water phase is isolated with the nimbin and pyrethrin being dissolved in oil phase, to prevent nimbin and pyrethrin in water ring
Fast hydrolyzing in border, to solve the instability problem of nimbin and the pyrethrin facile hydrolysis in water environment.
Nimbin provided by the invention and pyrethrin complex microemulsion preparation method are simple for process, and gained microemulsion
Medicament is stable, efficient, had both played pyrethrin and has killed the delay drug effect for also achieving nimbin to the speed of pest, can extensive use
In the control of insect of organic farm products.
Description of the drawings
Fig. 1 is the flow process figure of the present invention.
Specific implementation mode
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, with reference to
The drawings and specific embodiments, how the present invention is further explained implements.
A kind of nimbin of present invention offer and pyrethrin complex microemulsion preparation method, as shown in Figure 1, including following step
Suddenly：
Step 1: weight percent accounting 21.2-61% surfactants and weight percent accounting 30-65% low-carbon alcohols are helped
Surfactant is uniformly mixed, and group becomes oil phase；
Step 2: being 0.1~3% nimbin by weight percent accounting and weight percent accounting is 0.1~5% pyrethrin
It is dissolved among the oil phase obtained by step 1；
Step 3: under 60 revs/min of stirring conditions, by quantitative polishing weight percent be 100% deionized water slowly
Be added obtained by step 2 dissolved in the oil phase of nimbin and pyrethrin, and it is uniform, transparent to continue stirring until solution, obtains oil
Packet water microemulsion, as finished product.
In the present invention, low-carbon alcohols cosurfactant includes following components by weight percentage：10~15% ethyl alcohol, 5
~15% isopropanol, 5~15% isobutanols, 5~10% isoamyl alcohol and 5~10% propylene glycol.
In the present invention, nonionic surfactant includes following components by weight percentage：5~15% agriculture breasts 1601,5
~10% agriculture breast 1602,1~5% polysorbas20,1~5% Tween 80,1~4% organosilicon SiLwet408,5~10% piperonyls
Butyl ether, 3~10% azones, 0.1~1%BHT and 0.1~1% benzophenone.
The present invention also provides a kind of nimbin and pyrethrin complex microemulsion, include with the following group by weight percentage
Point：0.1~3% nimbin, 0.1~5% pyrethrin, 10~15% ethyl alcohol, 5~15% isopropanols, 5~15% isobutanols, 5
~10% isoamyl alcohol, 5~10% propylene glycol, 5~15% agriculture breasts 1601,5~10% agriculture breasts 1602,1~5% polysorbas20,1~
5% Tween 80,1~4% organosilicon SiLwet408,5~10% piperonyl butoxides, 3~10% azones, 0.1~1%BHT and
0.1~1% benzophenone, surplus are water.
In the present invention, nimbin is nimbin raw medicine, and pyrethrin is pyrethrosin primary medicine, and BHT is antioxidant 264；And
Nimbin raw medicine, ethyl alcohol, isopropanol, isobutanol, isoamyl alcohol, propylene glycol, agriculture breast 1601, agriculture breast 1602, is spat pyrethrosin primary medicine
Temperature 20, Tween 80, organosilicon SiLwet408, piperonyl butoxide, azone, antioxidant 264 and benzophenone are purchased from market
It sets.
Embodiment 1
In specific production application, a kind of preparation side of nimbin and pyrethrin complex microemulsion provided in this embodiment
Method, specially：
First weigh 0.25 kilogram of nimbin, 1.45 kilograms of pyrethrins, 10 kg ethanols, 10 kg isopropanol alcohol, 10 kilograms
Isobutanol, 5 kilograms of propylene glycol, 5 kilograms of isoamyl alcohol, 10 kilograms of 1601,5 kilograms of agriculture breast, 1602,3 kilograms of agriculture breast polysorbas20s, 2 kilograms
Tween 80,2 kilograms of organosilicon SiLwet408,5 kilograms of piperonyl butoxides, 3 kilograms of azones, 0.1 kilogram of BHT, 0.1 kilogram of hexichol
Then all components are uniformly mixed by ketone, group becomes oil phase.
Finally by the deionized water of polishing 100%, among being slowly added into oil phase under conditions of stirring at 60 revs/min, stirring
It is uniformly mixed, transparent to liquid, obtain water-in-oil microemulsion agent, as 100 kilograms of finished products.
Embodiment 2
In specific production application, a kind of preparation side of nimbin and pyrethrin complex microemulsion provided in this embodiment
Method, specially：
First weigh 0.1 kilogram of nimbin, 0.1 kilogram of pyrethrin, 15 kg ethanols, 15 kg isopropanol alcohol, 5 kilograms of isobutyls
Alcohol, 10 kilograms of propylene glycol, 7 kilograms of isoamyl alcohol, 15 kilograms of 1601,10 kilograms of agriculture breast, 1602,1 kilograms of agriculture breast polysorbas20s, 1 kilogram spit
80,4 kilograms of organosilicon SiLwet408 of temperature, 7 kilograms of piperonyl butoxides, 6 kilograms of azones, 1 kilogram of BHT, 1 kilogram of benzophenone, so
All components are uniformly mixed afterwards, group becomes oil phase.
Finally by the deionized water of polishing 100%, among being slowly added into oil phase under conditions of stirring at 60 revs/min, stirring
It is uniformly mixed, transparent to liquid, obtain water-in-oil microemulsion agent, as 100 kilograms of finished products.
Embodiment 3
In specific production application, a kind of preparation side of nimbin and pyrethrin complex microemulsion provided in this embodiment
Method, specially：
First weigh 3 kilograms of nimbins, 5 kilograms of pyrethrins, 12 kg ethanols, 5 kg isopropanol alcohol, 15 kilograms of isobutanols, 7
Kilogram propylene glycol, 10 kilograms of isoamyl alcohol, 5 kilograms of 1601,7 kilograms of agriculture breast, 1602,5 kilograms of agriculture breast polysorbas20s, 5 kilograms of Tween 80s, 1
Kilogram organosilicon SiLwet408,10 kilograms of piperonyl butoxides, 10 kilograms of azones, 0.5 kilogram of BHT, 0.5 kilogram of benzophenone, so
All components are uniformly mixed afterwards, group becomes oil phase.
Finally by the deionized water of polishing 100%, among being slowly added into oil phase under conditions of stirring at 60 revs/min, stirring
It is uniformly mixed, transparent to liquid, obtain water-in-oil microemulsion agent, as 100 kilograms of finished products.
One, stability test
1.1 test method：
Embodiment 1, embodiment 2 and 3 sample of embodiment are placed in (54 ± 2) DEG C environment after storing 14d, observe its heat storage
Stability, appearance are homogeneous, transparent for qualification.
Embodiment 1, embodiment 2 and 3 sample of embodiment are stored in the refrigerator of (0 ± 1) DEG C, it is observed after placing 14d
Cold storage stability, appearance transparent, without precipitating or be layered as qualification.If sample is placed in room temperature, muddy or ice cube fades away
And can restore to pellucidity, it is not stratified after centrifugation, then it is qualification.
After the embodiment 1 configured, embodiment 2 and 3 microemulsion standard hard water of embodiment are diluted 20-200 times, in
25-30 DEG C of standing 1h, observes the stability of dilution, and clear is produced as qualification without grease or precipitation.
The microemulsion for placing 1 year embodiment 1, embodiment 2 and embodiment 3 is weighed in right amount in volumetric flask, with acetone constant volume,
It shakes up；It is then transferred to sample injection bottle, with nimbin and deinsectization in GC-14B gas chromatographs (Japanese Shimadzu Corporation) determination sample
The content of chrysanthemum element, investigates the ageing stability of microemulsion, if the changes of contents of nimbin and pyrethrin is little in sample, for
It is qualified.
1.2 according to the heat storage stability of above-mentioned pesticide, cold storage stability, emulsion stability and ageing stability experiment side
Method, measure the heat storage stability of 3 sample of embodiment 1, embodiment 2 and embodiment, cold storage stability, emulsion stability and through when it is steady
Qualitative is qualification.
Two, efficiently experiment
To as a control group, it implement 2% methylamino AVM hereinafter element formates microemulsion of common diamondback moth insecticide in the market
Example 1, embodiment 2 and 3 gained microemulsion of embodiment are diluted with water 800 times and are used as experimental group, use leaf dish method to measure at the beginning of 3 ages respectively
Diamondback moth larvae insecticidal activity and antifeedant activity, the results are shown in Table 1.
The insecticidal activity and antifeedant activity statistical form of 1 experimental group of table and control group
The result shows that the anti-food rate of the diamondback moth larvae at the beginning of 3 age of 2% methylamino AVM hereinafter element formates microemulsion pair is
24.47% (2h), 58.54% (for 24 hours), 97.58% (72h)；The death rate be 27.12% (2h), 60.19% (for 24 hours),
98.74% (72h), the anti-food rate of the diamondback moth larvae at the beginning of 3 age of 1 gained microemulsion pair of embodiment be 79.79% (2h),
89.59% (for 24 hours), 99.87% (72h)；The death rate is 73.33% (2h), 90.43% (for 24 hours), 99.61% (72h)；Implement
The anti-food rate of diamondback moth larvae at the beginning of 3 age of 2 gained microemulsion pair of example is 84.79% (2h), 90.45% (for 24 hours), 99.47%
(72h)；The death rate is 83.43% (2h), 94.23% (for 24 hours), 99.75% (72h)；At the beginning of 3 age of 2 gained microemulsion pair of embodiment
Diamondback moth larvae anti-food rate be 81.29% (2h), 90.77% (for 24 hours), 99.97% (72h)；The death rate is 83.45%
(2h), 91.61% (for 24 hours), 99.48% (72h).Compared to 2% methylamino AVM hereinafter element formates of common insecticide in the market
Microemulsion drug effect after 72h is played effectiveness, and embodiment 1, embodiment 2 and 3 gained microemulsion of embodiment are after 2h i.e. to diamondback moth
It plays effectiveness, and insecticidal activity to the diamondback moth larvae at the beginning of 3 ages and antifeedant activity are above 2% methylamino AVM hereinafter element formic acid
Salt microemulsion.
Field trial：Embodiment 1, embodiment 2 and 3 gained microemulsion of embodiment are diluted with water 1000 times for preventing flower
Pest on cabbage, the results showed that, be 79.41% (after dispenser 2h) to the preventive effect of diamondback moth, 88.74% (after dispenser 1 day),
98.75% (after dispenser 3 days), 99.79% (after dispenser 7 days), 99.94% (after dispenser 15 days), 98.58% (dispenser 30 days
Afterwards).This show embodiment 1, embodiment 2 and 3 gained microemulsion of embodiment after 2h i.e. to the performance drug effect of diamondback moth, and 30 days
Still there is drug effect afterwards, has both played pyrethrin and killed the delay drug effect for also achieving nimbin to the speed of pest, can be widely applied to
The control of insect of organic farm products.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (5)
1. a kind of nimbin and pyrethrin complex microemulsion preparation method, which is characterized in that include the following steps：
Step 1: weight percent accounting 21.2-61% surfactants and weight percent accounting 30-65% low-carbon alcohols are helped surface
Activating agent is uniformly mixed, and group becomes oil phase；
Step 2: by weight percent accounting be 0.1~3% nimbin and weight percent accounting be 0.1~5% pyrethrin dissolving
Among oil phase obtained by step 1；
Step 3: under 60 revs/min of stirring conditions, the deionized water that quantitative polishing weight percent is 100% is slowly added into
Obtained by step 2 dissolved in the oil phase of nimbin and pyrethrin, and it is uniform, transparent to continue stirring until solution, obtains Water-In-Oil
Microemulsion, as finished product.
2. a kind of nimbin according to claim 1 and pyrethrin complex microemulsion preparation method, which is characterized in that low
Carbon alcohol cosurfactant includes following components by weight percentage：10~15% ethyl alcohol, 5~15% isopropanols, 5~15%
Isobutanol, 5~10% isoamyl alcohol and 5~10% propylene glycol.
3. a kind of nimbin according to claim 1 and pyrethrin complex microemulsion preparation method, which is characterized in that non-
Ionic surface active agent includes following components by weight percentage：5~15% agriculture breasts 1601,5~10% agriculture breasts 1602,1~
5% polysorbas20,1~5% Tween 80,1~4% organosilicon SiLwet408,5~10% piperonyl butoxides, 3~10% azones,
0.1~1%BHT and 0.1~1% benzophenone.
4. a kind of nimbin and pyrethrin complex microemulsion, which is characterized in that include following components by weight percentage：
0.1~3% nimbin, 0.1~5% pyrethrin, 10~15% ethyl alcohol, 5~15% isopropanols, 5~15% isobutanols, 5~
10% isoamyl alcohol, 5~10% propylene glycol, 5~15% agriculture breasts 1601,5~10% agriculture breasts 1602,1~5% polysorbas20,1~5%
Tween 80,1~4% organosilicon SiLwet408,5~10% piperonyl butoxides, 3~10% azones, 0.1~1%BHT and 0.1~
1% benzophenone, surplus are water.
5. a kind of nimbin and pyrethrin complex microemulsion, which is characterized in that include following components by weight percentage：
0.25% nimbin, 1.45% pyrethrin, 10% ethyl alcohol, 10% isopropanol, 10% isobutanol, 5% isoamyl alcohol, 5% the third two
Alcohol, 10% agriculture breast 1601,5% agriculture breast 1602,3% polysorbas20,2% Tween 80,2% organosilicon SiLwet408,5% piperonyl
Butyl ether, 3% azone, 0.1%BHT and 0.1% benzophenone, surplus are water.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113476363A (en) * | 2021-06-30 | 2021-10-08 | 杭州欣禧农林科技有限公司 | Composition for repelling solenopsis invicta and application thereof |
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2018
- 2018-07-26 CN CN201810830950.5A patent/CN108541717A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113476363A (en) * | 2021-06-30 | 2021-10-08 | 杭州欣禧农林科技有限公司 | Composition for repelling solenopsis invicta and application thereof |
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