CN1225174C - Wettable powder of nimbin and pyrethrin and its preparing method - Google Patents
Wettable powder of nimbin and pyrethrin and its preparing method Download PDFInfo
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- CN1225174C CN1225174C CN 03140099 CN03140099A CN1225174C CN 1225174 C CN1225174 C CN 1225174C CN 03140099 CN03140099 CN 03140099 CN 03140099 A CN03140099 A CN 03140099A CN 1225174 C CN1225174 C CN 1225174C
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- nimbin
- pyrethrin
- wetting powder
- powder
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Abstract
The present invention relates to a wettable powder containing nimbin and pyrethrin. The wettable powder is prepared by the following steps: mixing the nimbin powder or extract containing nimbin with pyrethrin; adding a wetting agent, a dispersing agent, a preservative and a filling agent into the mixture, and then disintegrating the final mixture in a disintegrator to obtain the wettable powder. The pesticide favorable in pest prevention effect and safe to people, livestock, natural enemies of pests and other beneficial organisms avoids environment pollution caused by a plurality of organic solvents. The drug resistance of pest is overcome by using the synergistic effect and negative cross resistance relationship between nimbin and pyrethrum in the mixture, and thus the agent use effect is increased. The wettable powder is suitable for controlling various pests with serious drug resistance.
Description
Technical field
The present invention relates to a kind of vegetable insecticide, especially wetting powder of insecticide active substance nimbin and pyrethrin and preparation method thereof.
Technical background
The present invention mixes " environmental friendliness " insecticide active substance nimbin and high-efficiency low-toxicity medicament pyrethrin, is mixed with wetting powder, makes it have stronger insecticidal activity, widens its scope of application.
Nimbin is not only universally acknowledged efficient insecticide active substance, and it is to environment, people, animal, pest natural enemy and other beneficial organism safety, and insect is difficult for developing immunity to drugs, and it belongs to " environmental friendliness " type agricultural chemicals.Countries in the world are attached great importance to it at present, have developed a plurality of nimbin insecticide varieties in succession, and wherein formulation mainly is a missible oil, and environment is caused bigger pollution.Pyrethrin is a kind of active substance that extracts from pyrethrum flowers, and various pests is had stomach toxicity and action of contace poison, and especially knockdown effect is obvious, to crop safety, has advantages such as preventive effect height, dosage be low.After nimbin and pyrethrin are mixed and are processed into wetting powder, can reduce the pollution of organic solvent, can widen the control spectrum simultaneously again, reduce drug-fast generation, prolong the service life of medicament, bring into play the effect of medicament better environment.
Technology contents
The objective of the invention is to propose the wetting powder that a kind of nimbin and pyrethrin be mixed and the method for preparation thereof.
Purpose of the present invention is achieved through the following technical solutions:
Nimbin dry powder or contain the nimbin extract and after pyrethrin mixes, add wetting agent, dispersant, preservative, filler again stirs, and fully pulverizes in cracker, makes the particle diameter of nimbin and pyrethrin reach 44～74 μ m and gets final product.
The extract or the nimbin dry powder that wherein contain nimbin prepare as follows: utilize neem seed to carry out lixiviate, obtain certain density nimbin extract, extract obtains containing the extract of nimbin after concentrating evaporate to dryness; Perhaps squeeze neem kernel and obtain neem oil, neem oil is slowly joined in the non-polar solven, filter or centrifugally go out flocculent deposit, precipitation is drying to obtain nimbin dry powder.Pyrethrin is commercially available pyrethrin.
The wetting powder of a kind of nimbin and pyrethrin is characterized in that containing by weight nimbin 0.1%～80%, pyrethrin 0.1%～80%, and all the other are auxiliary agents.
The above-mentioned nimbin and the wetting powder of pyrethrin contain by weight:
Nimbin 0.1%-80% pyrethrin 0.1%-80%
Wetting agent content is 7%-30% for the 1%-20% dispersant
Antiseptic content is 10%-85% for the 0.1%-2.9% filer content
Each component summation is 100%
Described wetting agent is: sodium lignin sulfonate, calcium lignosulfonate, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, the alkyl naphthalene formaldehyde condensate sulfonates, neopelex, lauryl sodium sulfate, potassium oleate (sodium), alkyl polyoxyethylene ether sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products, alkylphenol-polyethenoxy base ether Nonyl pheno base ether, polyoxyethylene polyoxypropylene base ether block copolymers, draw back powder, poly-second carboxylic esters sodium salt, the dodecyl polyoxyethylene ether phosphate, the alkyl naphthalene formaldehyde condensate sulfonates, oleic acid methylamino ethylsulfonic acid sodium, alkyl acid polyoxyethylene groups ether sulfonate, starch, gelatin, CMC, in the polyvinyl alcohol any one or more.
Dispersant is: any one or more in naphthalene sulfonate, alkylsulfonate, polyoxy ethyl ether sulfonate, the diisopropyl phosphate.
Preservative is: one or more in active carbon, the alkaline earth metal.
Filler is: one or more in kaolin, diatomite, the active carbon.
The invention provides a kind of efficient, low toxicity, to person poultry safety's the nimbin and the wetting powder of pyrethrin.Earlier nimbin is mixed with pyrethrin, fully mix with wetting agent, dispersant again, add preservative, filler then successively, stir while adding evenly, in cracker, pulverize, the particle diameter that makes nimbin and pyrethrin is generally 44～74 μ m and gets final product all by the specified standard sieve.It has the following advantages:
To pest efficient, to people and animals' low toxicity; Control efficiency improves, and cost reduces; Be fit to the multiple resistant insect of control; Do not use organic solvent in the preparation, reduce and pollute, can not produce solvent and poison; After being mixed, dosage reduces, and drug effect increases substantially.
In order to understand essence of an invention better, describe the technology contents of invention below in detail with example, but content of the present invention is not limited thereto.
Embodiment one: produce 1.0% nimbin pyrethrin wetting powder
Nimbin 0.2% pyrethrin 0.8%
Wetting agent 6% dispersant 28%
Preservative 1%
Filled to 100%.
Wherein, nimbin and pyrethrin are by active ingredient, and all the other by weight.Earlier nimbin is mixed with pyrethrin, fully mix with wetting agent, dispersant again, add preservative, filler then successively, stir while adding evenly, pulverize in cracker, the particle diameter that makes nimbin and pyrethrin is that 44～74 μ m get final product.Following examples are identical therewith.
Embodiment two: produce 1.2% nimbin pyrethrin wetting powder
Nimbin 0.3% pyrethrin 0.9%
Wetting agent 8% dispersant 30%
Preservative 1%
Filled to 100%.
Embodiment three: produce 1.5% nimbin pyrethrin wetting powder
Nimbin 0.3% pyrethrin 1.2%
Wetting agent 8% dispersant 35%
Preservative 1%
Filled to 100%.
Embodiment four: produce 2.2% nimbin pyrethrin wetting powder
Nimbin 0.5% pyrethrin 1.7%
Wetting agent 10% dispersant 36%
Preservative 1%
Filled to 100%.
Effect of the present invention is as follows:
Table 1 nimbin pyrethrin mixture is to the control efficiency of radish aphid
| Medicament kind | Extension rate | Borer population before the medicine | Behind the medicine the 3rd day | Behind the medicine the 7th day | ||
| Proofread and correct the insect population rate % that goes down | Preventive effect % | Proofread and correct the insect population rate % that goes down | Preventive effect % | |||
| CK | 148 | -8.78％ | 15.82％ | |||
| 2% pyrethrin EC | 1500× | 132 | 65.58％ | 63.81％b | 89.63％ | 88.47％c |
| 0.3% nimbin EC | 1000× | 127 | 64.95％ | 63.57％b | 90.31％ | 89.25％c |
| 1.0 nimbin pyrethrin WP | 1500× | 142 | 68.29％ | 67.63％a | 94.32％ | 93.67％ab |
| 1.5 nimbin pyrethrin WP | 1500× | 156 | 70.26％ | 68.72％a | 96.76％ | 95.38％a |
Annotate: alphabetical identical person after the same column data in the table, show through variance analysis difference not significantly (DMRT method) on 5% level
Claims (7)
1. the wetting powder of nimbin and pyrethrin is characterized in that containing by weight nimbin 0.1%～80%, pyrethrin 0.1%～60%, and all the other are auxiliary agents.
2. the wetting powder of nimbin according to claim 1 and pyrethrin is characterized in that by containing;
Nimbin 0.1%-80% pyrethrin 0.1%-60%
Wetting agent content is 7%-30% for the 1%-20% dispersant
Antiseptic content is 10%-85% for the 0.1%-2.9% filer content
Each component summation is 100%
3. the wetting powder of nimbin according to claim 2 and pyrethrin is characterized in that wetting agent is: sodium lignin sulfonate, calcium lignosulfonate, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, the alkyl naphthalene formaldehyde condensate sulfonates, neopelex, lauryl sodium sulfate, potassium oleate, enuatrol, alkyl polyoxyethylene ether sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products, alkylphenol-polyethenoxy base ether Nonyl pheno base ether, polyoxyethylene polyoxypropylene base ether block copolymers, draw back powder, poly-second carboxylic esters sodium salt, the dodecyl polyoxyethylene ether phosphate, the alkyl naphthalene formaldehyde condensate sulfonates, oleic acid methylamino ethylsulfonic acid sodium, alkyl acid polyoxyethylene groups ether sulfonate, starch, gelatin, CMC, in the polyvinyl alcohol any one or more.
4. the wetting powder of nimbin according to claim 2 and pyrethrin is characterized in that dispersant is: any one or more in naphthalene sulfonate, alkylsulfonate, polyoxy ethyl ether sulfonate, the diisopropyl phosphate.
5. the wetting powder of nimbin according to claim 2 and pyrethrin is characterized in that preservative is: one or more in active carbon, the alkaline earth metal.
6. the wetting powder of nimbin according to claim 2 and pyrethrin is characterized in that filler is: one or more in kaolin, diatomite, the active carbon.
7. the wetting powder of nimbin according to claim 2 and pyrethrin, it is characterized in that: earlier nimbin is mixed with pyrethrin, fully mix with wetting agent, dispersant again, add preservative, filler then successively, stir while adding evenly, pulverize in cracker, the particle diameter that makes nimbin and pyrethrin is the standard screen by 44-74 μ m all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140099 CN1225174C (en) | 2003-08-07 | 2003-08-07 | Wettable powder of nimbin and pyrethrin and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140099 CN1225174C (en) | 2003-08-07 | 2003-08-07 | Wettable powder of nimbin and pyrethrin and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1473469A CN1473469A (en) | 2004-02-11 |
| CN1225174C true CN1225174C (en) | 2005-11-02 |
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| CN 03140099 Expired - Fee Related CN1225174C (en) | 2003-08-07 | 2003-08-07 | Wettable powder of nimbin and pyrethrin and its preparing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239890A (en) * | 2011-08-04 | 2011-11-16 | 华南农业大学 | Microcapsule suspension used for preventing and controlling spiraling whitefly and preparation method thereof |
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| CN103262864A (en) * | 2013-06-13 | 2013-08-28 | 金陵科技学院 | Biological pesticide composition as well as preparation method and application thereof |
| CN104488978A (en) * | 2014-11-17 | 2015-04-08 | 红云红河烟草(集团)有限责任公司 | Special repellent for tobacco pests and using method thereof |
| CN105340980A (en) * | 2015-10-09 | 2016-02-24 | 南宁源广农业科技有限公司 | Fruit tree insecticidal composition |
| CN107873743A (en) * | 2017-12-06 | 2018-04-06 | 昭平县科学技术实验场 | Plant insecticide containing selfheal and preparation method thereof |
| CN107950551A (en) * | 2017-12-25 | 2018-04-24 | 云南保山嘉宏农业开发（集团）有限公司 | Pure biology neem-based insecticide preparation process |
| CN107969439A (en) * | 2017-12-25 | 2018-05-01 | 云南保山嘉宏农业开发（集团）有限公司 | Pure biology neem-based insecticide formula |
| CN112189675A (en) * | 2020-08-04 | 2021-01-08 | 北京宇悦生物科技有限公司 | Pesticide nano drug-loading system and preparation method thereof |
| CN115769826A (en) * | 2022-11-29 | 2023-03-10 | 云南春城档案用品有限公司 | Archival repository insecticide |
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2003
- 2003-08-07 CN CN 03140099 patent/CN1225174C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239890A (en) * | 2011-08-04 | 2011-11-16 | 华南农业大学 | Microcapsule suspension used for preventing and controlling spiraling whitefly and preparation method thereof |
| CN102239890B (en) * | 2011-08-04 | 2013-08-07 | 华南农业大学 | Microcapsule suspension used for preventing and controlling spiraling whitefly and preparation method thereof |
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| Publication number | Publication date |
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| CN1473469A (en) | 2004-02-11 |
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