CN1070341C - High effective multicomponent natural plant insecticide - Google Patents
High effective multicomponent natural plant insecticide Download PDFInfo
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- CN1070341C CN1070341C CN96103836A CN96103836A CN1070341C CN 1070341 C CN1070341 C CN 1070341C CN 96103836 A CN96103836 A CN 96103836A CN 96103836 A CN96103836 A CN 96103836A CN 1070341 C CN1070341 C CN 1070341C
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Abstract
The present invention discloses a highly-effective multicomponent natural plant insecticidal agent and preparing method thereof. Main components of the highly-effective multicomponent natural plant insecticidal agent are extracted from natural plants and comprise natural insecticidal substances comprising margosine extracted from chinaberries, matrine extracted from flavescent sophora roots, nicotine extracted from waste material of low-order tobacco leaves and waste material of cigarette industry, etc. The main components are mixed into a mixture dissolved in alcohol, an emulsifying agent and a stabilizer are added into the mixture, and thus, formal products are made. The highly-effective multicomponent natural plant insecticidal agent combines three kinds of effective natural plant insecticidal active ingredients, so the highly-effective multicomponent natural plant insecticidal agent has a wide insecticidal spectrum, has no toxic residue, does not damage natural enemies of injurious insects, and has promotion action to vegetable growth. Besides, the highly-effective multicomponent natural plant insecticidal agent is particularly suitable for the production of nuisance-free green food.
Description
The present invention relates to a kind of insecticide that contains vegetable material, especially relate to the broad spectrum pesticide that a kind of primary raw material is all taken from natural plants.
The application of chemical insecticide has guaranteed the volume increase significantly of agricultural animal product, but brings adverse influence also for environment, the ecological balance and the mankind itself's of human survival health.As the pollution of soil, water body, atmosphere and the residual hazard of agricultural animal product, cause a large amount of person poultry poisoning's death every year; Chemical insecticide has also injured the natural enemy of insect in kill pests, destroyed the ecological balance, some insects is increased sharply and wildness, be difficult to control and form vicious circle, use chemical insecticide repeatedly, insect is developed immunity to drugs rapidly, drug effect is descended or inefficacy.The update of chemical insecticide simultaneously, development tolls is more and more higher, and is very risky.Especially to the strict demand of environmental protection and going deep into of toxicity research, more and more tighter to the restriction and the requirement of new chemical insecticide.Under these circumstances, force people to go to seek the new way of insect protected, the insecticide research and development is difficult for developing immunity to drugs along efficient, low toxicity, insect, the protection pest natural enemy, and nuisanceless direction develops.
China has eliminated successively that some toxicity are big, residual quantity is high, environment has been had the chemical pesticide kind of severe contamination in recent years, and even so, persticide residue still allows critical field head and shoulders above in many agricultural byproducts.Developed country advocates energetically and adopts biological method and plant pesticide to kill damage by disease and insect for preserving the ecological environment and human health, produces " pollution-free food ".The work that domestic many agri-scientific research departments and exploitation mechanism have also begun development and developed nuisanceless pollution plants, biological species agricultural chemicals.
The objective of the invention is to avoid above-mentioned the deficiencies in the prior art, provide a kind of primary raw material all to take from natural plants, have high-efficiency low-toxicity, wide spectrum, insect is knocked down rapidly, multicomponent natural plant insecticide that killing rate is high and preparation method thereof.
Purpose of the present invention can realize by following technical measures.
The present invention is the emulsion of making according to following method:
A. the extraction of chinaberry vegetable insecticide active ingredient
1. neem bark, leaf are broken for the fragment about 1 centimetre;
2. make solvent with 70% ethanol, temperature is controlled at 55～65 ℃, divides 5～7 extractions, often stirs in leaching process, makes lixiviate complete, and each extraction time is 0.5～1 hour.
3. recovered under reduced pressure part ethanol;
4. in concentrating leaching liquor, add active carbon and the white bole that is about material quantity 3%, refluxed 10 minutes down, so that degreasing, come unstuck at 80+2 ℃;
5. add the benzinum degreasing once more that concentrates volume 1/5 in concentrate, products obtained therefrom is standby.
B. the preparation of kuh-seng insecticide
1. radix sophorae is cut into slices (section) with slicer, put into the lixiviate jar, add 1% aqueous hydrochloric acid solution of 4 times of raw material weights, material is heated to 90 ℃ of digestions, be incubated 4 hours; Emit the water that adds 4 times of amounts after the leaching liquor again, heat to 90 ℃ of leachings once;
2. with the leaching liquor that obtains for twice through cooling, post precipitation, clear liquid is squeezed into the impurity elimination jar and is coagulated depressant prescription with chemistry and remove tannin, colloid, impurity such as wooden, passes through filter and filters to get filtrate.To filter to such an extent that clear liquid is squeezed into vacuum tank and concentrated, and be concentrated into 35～40 ° of Be ', products obtained therefrom is standby.
C, nicotine sulphate extract
1. be raw material with flue-cured tobacco, broken cigarette, tobacco, cigarette muscle, secondary cigarette and cigarette factory offcuts;
2. water floods raw material, raw material: water=1: 4～6 (weight ratio), 45～55 ℃ of dipping temperatures, dip time 25～30 hours;
3. maceration extract adds 15～20% milk of lime processing, makes nicotine dissociate out, and makes a large amount of gummy precipitations in the maceration extract;
4. above-mentioned milk of lime is handled the back maceration extract and is added 5～7% soda ash processing after filtering, makes a spot of calcium ion and gummy precipitation;
5. with the above-mentioned filtered fluid of handling through soda ash of kerosene extraction, the weight ratio of kerosene and nicotine filtered fluid is 1: 2, and temperature is controlled at 60～70 ℃;
6. add 20% dilute sulfuric acid absorption nicotine, along with the raising of nicotinic density, the concentration of acid descends, and gained solution proportion is 8～12 ° of Be ', pH value=5～6;
7. concentrating under reduced pressure, temperature is 40～60 ℃, products obtained therefrom is standby.
The preparation of D, insecticide
1. above-mentioned A, B, three kinds of products of C are mixed with 1: 1: 1 weight ratio;
2. with 70% dissolve with ethanol mixture, add 6% emulsifier;
3. add 0.1% stabilizing agent, get product.
Used emulsifier can be 656HB; Stabilizing agent can be N
aHSO
3
Primary raw material of the present invention is all taken from natural plants, therefrom effective component extracting:
The first, the toosendanin that extracts from chinaberry is a kind of natural insecticide of wide spectrum, to being under the jurisdiction of 26 kinds of insects of 13 sections of 6 orders respectively, insecticidal effect is all arranged, it have avoid keep away, food refusal, inhibition insect growth grow, destroy insect cuticle, tag and the effect of interior suction intoxicating.
The second, kuh-seng is a kind of Chinese herbal medicine commonly used, belongs to pulse family in Plant Taxonomy.Contain multiple alkaloid and flavones in the kuh-seng, wherein based on matrine.The kuh-seng property of medicine has heat-clearing and damp-drying drug for " cold in nature, bitter ", and the function of diuresis desinsection also is a kind of good cancer therapy drug.Therefore, the present invention with the kuh-seng be that the vegetable insecticide of feedstock production has that insecticidal action is strong, noresidue, to the characteristics of people and animals' low toxicity, environmentally safe.This medicine is to tag, and inhaling extremely, (stomach toxicity) is auxilliary.
Three, nicotine also is a kind of broad spectrum pesticide, and general software insect, mini pest are all had good control efficiency; The main insecticidal activity thing nicotine or the nicotine salt of nicotine insecticide are from plant tobacco itself, and it easily decomposes in natural environment, does not have residue problem on crops substantially; Nicotine is a kind of insect never poison, and it can combine with the neural acetylcholinergic receptor of polypide after entering polypide by different approaches, and can not decompose, and it is excited to cause insect to continue, until respiratory failure and death.Under the concentration of using as insecticide,, can courageously use the person poultry safety.
Compared with prior art, multicomponent natural plant insecticide provided by the invention, the routine of an anti-chemical pesticide, primary raw material is all taken from natural plants.The present invention adopts science extracting method and rational prescription, and it organically is combined into one, and has efficient, low toxicity, wide spectrum, insect is knocked down rapidly characteristics such as killing rate height.Field test results shows, to wheat and maize army worm, wild cabbage diamond-back moth, cabbage caterpillar, cucumber two spotted spider mite, aphid, apple leaf curling aphid, pear sucker; Various pests such as thrips, brown plant-hopper, cotton leafhopper, tea borer, diamond-back moth, corn borer, jowar bar snout moth's larva, jujube fruit borer, persimmon caterpillar all have good insecticidal effect.The present invention is applicable to the control of insect of cotton, wheat, vegetables, fruit tree, paddy rice, flowers and other crops.The present invention has made up three kinds of effective natural plant insect killing active ingredients, thereby makes that the insecticidal spectrum of this product is broader, and does not have residual hazard, does not hinder natural enemy, and vegetable growth is had certain promotion, and the production of non-harmful pollution-free food is particularly suitable for.The present invention is the development vegetable basket project, and the vegetables that provide no residual toxicity to pollute have been created material conditions, have broad prospect for its application.
Embodiment
The high effective multicomponent natural plant insecticide is the emulsion of making according to following method:
A. the extraction of chinaberry vegetable insecticide active ingredient
1. neem bark, leaf are broken for 1 centimetre fragment;
2. make solvent with 70% ethanol, temperature is controlled at 60 ℃, divides 6 extractions, often stirs in leaching process, makes lixiviate complete, and each extraction time is 0.5～1 hour.
3. recovered under reduced pressure part ethanol;
4. in concentrating leaching liquor, add active carbon and the white bole that is about material quantity 3%, refluxed 10 minutes down, so that degreasing, come unstuck at 80 ± 2 ℃;
5. in concentrate, add the benzinum degreasing once more that concentrates volume 1/5, promptly get product.
B. the preparation of kuh-seng insecticide
1. radix sophorae is cut into slices (section) with slicer, put into the lixiviate jar, add 1% aqueous hydrochloric acid solution of 4 times of raw material weights, material is heated to 90 ℃ of digestions, be incubated 4 hours; Emit the water that adds 4 times of amounts after the leaching liquor again, be heated to 90 ℃ of leachings once;
2. with the leaching liquor that obtains for twice through cooling, post precipitation, clear liquid is squeezed into the impurity elimination jar, coagulates depressant prescription with chemistry and removes tannin, colloid, impurity such as wooden, passes through filter and filters to get filtrate.To filter to such an extent that clear liquid is squeezed into vacuum tank and concentrated, be concentrated into 35～40 ° of Be '.
C, nicotine sulphate extract
1. be raw material with flue-cured tobacco, broken cigarette, tobacco, cigarette muscle, secondary cigarette and cigarette factory offcuts;
2. water floods raw material, raw material: water=1: 5 (weight ratio), dipping temperature are 50 ℃, and dip time is 28 hours;
3. maceration extract adds 18% milk of lime processing, makes nicotine dissociate out, and makes a large amount of gummy precipitations in the maceration extract;
4. above-mentioned milk of lime is handled the back maceration extract and is added 6% soda ash processing after filtering, makes a spot of calcium ion and gummy precipitation;
5. the filtered fluid of handling with kerosene extraction above-mentioned soda ash, the weight ratio of kerosene and nicotine filtered fluid is 1: 2, temperature is controlled at 65 ℃;
6. add 20% dilute sulfuric acid absorption nicotine, along with the raising of nicotinic density, the concentration of acid descends, and gained solution proportion is 8～12 ° of Be ', pH value=5～6;
7. concentrating under reduced pressure, temperature is 50 ℃, products obtained therefrom is standby.
D, preparation insecticide
1. above-mentioned A, B, three kinds of products of C are mixed with 1: 1: 1 weight ratio;
2. with 70% dissolve with ethanol mixture, add 6% emulsifier 656HB;
3. add 0.1% stabilizing agent N
aHSO
3, promptly get formal product.
Claims (2)
1, a kind of multicomponent natural plant insecticide is characterized in that the emulsion of making according to following method:
A. the extraction of chinaberry vegetable insecticide active ingredient;
1. neem bark, leaf are broken for the fragment about 1 centimetre;
2. make solvent with 70% ethanol, temperature is controlled at 55～65 ℃, divides 5～7 extractions, often stirs in leaching process, makes lixiviate complete, and each extraction time is 0.5～1 hour;
3. recovered under reduced pressure part ethanol;
4. in concentrating leaching liquor, add the active carbon and the white bole of material quantity 3%, refluxed 10 minutes down, so that degreasing, come unstuck at 80 ± 2 ℃;
5. in concentrate, add the benzinum degreasing once more that concentrates volume 1/5, promptly make the active ingredient of chinaberry;
B. the preparation of kuh-seng insecticide
1. radix sophorae is cut into slices with slicer or section, put into the lixiviate jar, add 1% aqueous hydrochloric acid solution of 4 times of raw material weights, material is heated to 90 ℃ of digestions, be incubated 4 hours; Emit the water that adds 4 times of amounts after the leaching liquor again, heat to 90 ℃ of leachings once;
2. with the leaching liquor that obtains for twice through cooling, post precipitation, clear liquid is squeezed into the impurity elimination jar, coagulates depressant prescription with chemistry and removes tannin, colloid and wooden, passes through filter and filters to get filtrate; To filter to such an extent that clear liquid is squeezed into vacuum tank and concentrated, be concentrated into 35～40 ° of Be ';
The extraction of C, nicotine sulphate
1. be raw material with flue-cured tobacco, broken cigarette, tobacco, cigarette muscle, secondary cigarette and cigarette factory offcuts;
2. water floods raw material, and the weight ratio of raw material and water is 1: 4～6,45～55 ℃ of dipping temperatures, dip time 25～30 hours;
3. maceration extract adds 15～20% milk of lime processing, makes nicotine dissociate out, and makes a large amount of gummy precipitations in the maceration extract;
4. above-mentioned milk of lime is handled the back maceration extract and is added 5～7% soda ash processing after filtering, makes high son of a spot of calcium and gummy precipitation;
5. with the above-mentioned filtered fluid of handling through soda ash of kerosene extraction, the weight ratio of kerosene and nicotine filtered fluid is 1: 2, and temperature is controlled at 60～70 ℃;
6. add 20% dilute sulfuric acid absorption nicotine, along with the raising of nicotinic density, the concentration of acid descends, and gained solution proportion is 8～12 ° of Be ', pH value=5～6;
7. concentrating under reduced pressure, temperature is 40～60 ℃, products obtained therefrom is standby;
D, preparation insecticide
1. above-mentioned A, B, three kinds of products of C are mixed with 1: 1: 1 weight ratio;
2. with 70% dissolve with ethanol mixture, add 6% emulsifier;
3. add 0.1% stabilizing agent, get product.
2, multicomponent natural plant insecticide according to claim 1, described emulsifier is 656HB when it is characterized in that preparing insecticide; Described stabilizing agent is N
aHSO
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103836A CN1070341C (en) | 1996-04-18 | 1996-04-18 | High effective multicomponent natural plant insecticide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103836A CN1070341C (en) | 1996-04-18 | 1996-04-18 | High effective multicomponent natural plant insecticide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1138416A CN1138416A (en) | 1996-12-25 |
| CN1070341C true CN1070341C (en) | 2001-09-05 |
Family
ID=5118223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96103836A Expired - Fee Related CN1070341C (en) | 1996-04-18 | 1996-04-18 | High effective multicomponent natural plant insecticide |
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| Country | Link |
|---|---|
| CN (1) | CN1070341C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411523C (en) * | 2006-04-07 | 2008-08-20 | 浙江省农业科学院 | A kind of Tripterygium wilfordii alkaloid compound insecticide |
| CN104432448A (en) * | 2014-10-27 | 2015-03-25 | 红云红河烟草(集团)有限责任公司 | Tobacco mildew-proof method for ethanol slow-release sterilization |
| CN107801736A (en) * | 2017-11-27 | 2018-03-16 | 来安县义坤农业发展有限公司 | A kind of insecticide for preventing and treating Lin grass gelechiid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063601A (en) * | 1992-02-25 | 1992-08-19 | 李瑛� | Chinese herbal medicine agricultural chemicals and preparation method thereof |
| CN1107654A (en) * | 1994-12-19 | 1995-09-06 | 彭君 | Preparation of margosine as plant insecticide and its using method |
-
1996
- 1996-04-18 CN CN96103836A patent/CN1070341C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063601A (en) * | 1992-02-25 | 1992-08-19 | 李瑛� | Chinese herbal medicine agricultural chemicals and preparation method thereof |
| CN1107654A (en) * | 1994-12-19 | 1995-09-06 | 彭君 | Preparation of margosine as plant insecticide and its using method |
Non-Patent Citations (1)
| Title |
|---|
| 生物农药第一版 1995.10.1 赵永贵，中国科学技术出版社 * |
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| Publication number | Publication date |
|---|---|
| CN1138416A (en) | 1996-12-25 |
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