CN1194783A - Kushujuzhi (picrasmathrin) pesticide - Google Patents
Kushujuzhi (picrasmathrin) pesticide Download PDFInfo
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- CN1194783A CN1194783A CN97109057A CN97109057A CN1194783A CN 1194783 A CN1194783 A CN 1194783A CN 97109057 A CN97109057 A CN 97109057A CN 97109057 A CN97109057 A CN 97109057A CN 1194783 A CN1194783 A CN 1194783A
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- cypermethrin
- picrasmathrin
- kushujuzhi
- pesticide
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Abstract
An insecticide of picrasmapyrethrin is in the form of wettable powder, emulsion or aqueous solution. The picrasma extract is prepared from the seed, stem, leaf and root bark through removing impurities, drying, crushing, cyclic extraction in reactor. The extract is either processed through drying, crushing, screening, addition of sodium lignosulfonate and chlorocyanthrin, mixing to obtain wettable powder, or processed through ordinary-temp vacuum extraction, and mixing with emulsifier, chlorocyanthrin and sodium dodecylsulfate to obtain emulsion or aqueous solution. The said insecticide features simple preparing process, low cost and high effect.
Description
The invention belongs to a kind of Kushujuzhi (picrasmathrin) pesticide, be particularly useful for crops, the control of common insects such as vegetables, fruit tree, tea tree.
Nearly two during the last ten years, the company of domestic and international many production agricultural chemicals, producer and some national government have dropped into substantial contribution, mobilize large quantities of scientists and technical staff to be engaged in the research and development of natural sex plant pesticide, tried hard to develop the chemical synthetic pesticide that the pollution-free natural plant pesticide progressively replaces or partly replacement has been produced the latent threat that pollutes to the mankind and natural environment by mankind's confirmation.At present, the research work of this respect obtained some the progress, as with the seal chinaberry be the seal chinaberry insecticide that raw material is made.Domestic also to have with natural plants such as rotenone, nicotine, margosine, matrine, fennel artemisins be the plant pesticide of raw material, and these new varieties have good benefits in environment, but drug effect is not fully up to expectations, and particularly quick-acting is not too high and cost is higher.Bitter tree is one of pesticide plant of the distinctive tool potentiality of China.Since over half a century, China explores and studies chemistry and the activity of hardship tree, but in utilization, still be stuck in ancient uproot, flour, pharmacy, technology is simple, drug effect adhesive force and spread poor performance, dosage is many in use, the cost height, uproot in a large number, destroyed the vegetation and the water and soil conservation on hillside.
The purpose of this invention is to provide a kind of Kushujuzhi (picrasmathrin) pesticide, hardship is set extract and cypermethrin compounded, technology is easy, and cost is low, and control efficiency is good.
For reaching above-mentioned purpose, the present invention adopts following technology path: the preparation Kushujuzhi (picrasmathrin) pesticide the steps include:
1, the production method of Kushujuzhi (picrasmathrin) pesticide at first is to extract active substance from seed, cauline leaf or the root skin of hardship tree; Next is to add emulsifier preparation semi-finished product in the active substance of extracting and liquid flux; The 3rd is that semi-finished product and the chemical pesticide cypermethrin that will prepare is mixed with the Kushujuzhi (picrasmathrin) finished product by a certain percentage.
As solvent, optimum have an alcohols: as methyl alcohol, ethanol, butanols; Aromatics: as toluene, dimethylbenzene, chlorobenzene, vinyl chloride, chloroform, carrene; Ketone: acetone, methyl ethyl ketone.
As emulsifier, optimum nonionic and anion emulsifier have: polyoxyethylene fatty acid ester, polyoxyethylene aliphatic alcohol ether, an alkylsulfonate, alkyl sulfate, arylsulphonate.
As solid carrier natural organic matter is arranged: be suitable carrier as the withered powder of tea, elm powder and bitter seeds shell powder, root skin powder, cauline leaf powder.
2, the production technology of Kushujuzhi (picrasmathrin) pesticide is: seed, cauline leaf, root skin, removal of impurities, drying, the pulverizing of gathering bitter tree, extract by liquid flux then, extract adds emulsifier and cypermethrin, and preparation is mixed with the Kushujuzhi (picrasmathrin) cream pesticide in proportion.By the filter cake after the extraction after crushed, add wetting agent and cypermethrin, can be made into the Kushujuzhi (picrasmathrin) wetting powder.
3, the emulsion of Kushujuzhi (picrasmathrin) pesticide, aqua, wetting powder system are joined and are:
The wetting powder preparation is: the one, and seed, cauline leaf, the root skin set with hardship are raw material, the 2nd, preliminary treatment, removal of impurities chopping; The 3rd, dry; The 4th, go into reactor after pulverizing; The 5th, the extract that the circulation extracting obtains filters, and filter cake carries out drying; The 6th, crush and screen; The 7th, add an amount of wooden sodium sulfonate and cypermethrin and mix, can obtain the finished product wetting powder;
The emulsion preparation is: the extract through reactor circulation extracting obtains, behind the normal temperature vacuum filtration, add liquid flux, emulsifier in proportion, and add cypermethrin then in proportion and fully mix, can obtain the emulsion finished product;
The aqua preparation is: obtain extract through reactor circulation extracting, behind the normal temperature vacuum filtration, add an amount of sodium dodecyl sulfate solution and cypermethrin and fully mix again, can obtain Kushujuzhi (picrasmathrin) aqua finished product.
4, emulsion, aqua, the wetting powder of preparation Kushujuzhi (picrasmathrin) pesticide can suitably add trace element, mix as iron, copper, boron, molybdenum, zinc, salt and use.
5, the preparation Kushujuzhi (picrasmathrin) pesticide can mix use with activated material, as bactericide, nematode killing agent, growth hormone, water-loss reducer, mixes the concentration of using and is 0.01-1%.
The active ingredient of Kushujuzhi (picrasmathrin) desinsection comprises two classes: one is the active matter that extracts in the hardship tree, chemistry Celastrus angulatus alkaloid by name.Its two, be cypermethrin.
19 kinds of new sequiterpene ester Alkaloids have been found to have among bitter tree seeds and the Gen Pi at present, parent nucleus β---dihydroagarofuran.Similar compound, just the position that links on kind, number and the parent nucleus of ester group is different.For example, the molecular formula of Celastrus angulatus ester II is 0C in the root skin
34H
41NO
23The molecular formula of planting Celastrus angulatus ester in the oil is C
34H
39NO
11Four crystals in the seed, to aulacophora femoralis adult food refusal effect, I is better for the Celastrus angulatus ester, and the 500ppm preventive effect is 99%, and Celastrus angulatus ester IV effect is 96%.Celastrus angulatus ester II is 68%, and Celastrus angulatus ester III is 27%.
Cypermethrin, english common name for the cypermethrin chemical name is: a-hydrogen base (3-benzyloxy phenoxy base) (1RS)-1R, 3R-3-(2,2-dichloroethylene)-2,2-dimethyl cyclopropane carboxylic acid ester.Former medicine is pale brown to dark red brown thick liquid, and proportion is 1.24 (20 ℃).Stable under neutrality, acid condition, hydrolysis under the highly basic condition, good thermal stability.Toxicity is by China's pesticide toxicity grading criteria, and cypermethrin is a medium pesticide.It belongs to pyrethroid insecticides, has to tag and stomach poison function.Insecticidal spectrum is wide, and drug effect is rapid, to light, thermally-stabilised.This medicine is respond well to the insect that organic phosphor produces resistance, and the longevity of residure is long.
Advantage of the present invention is: 1, drug resource is abundant, and production technology is easy; 2, have low toxicity, low-residual, non-killed natural enemies, do not develop immunity to drugs, no poisoning phenomenon; 3, production safety, to human body safety, production process does not have " three wastes ", environment is not produced and pollutes; 4, control efficiency is good.Preventive effect to cabbage caterpillar is that quick-acting is better more than 99%, and dispenser first day is just up to 95%; 5, natural enemy is had the better protect effect, crop is had the effect of certain guarantor's leaf; 6, cost is low, has remarkable economical society and environmental benefit.
Embodiment:
Example 1:
The active matter 25-65 gram of employing ethanol extracting seed or cauline leaf, root skin, xylene mixture 25-65 gram, dodecyl sodium sulfonate calcium 3-11 restrain, 0204 emulsifier 2-8 restrains, turkey red oil 2-8 restrains, the 2-8 of class of department restrains, cypermethrin 1-2 restrains, the even mixing, can obtain emulsion.
Example 2:
Adopt mixture 30-80 gram, 1-20% sodium dodecyl sulfate solution 20-60 gram, blowing agent 2-12 gram, cypermethrin 1-2 gram, 0204 emulsifier 1-3 gram, the per minute kind of the active matter of bitter tree extracting to stir 120 times, at the uniform velocity stirred 90-100 minute, get final product the Kushujuzhi (picrasmathrin) aqua.
Example 3:
The filter cake of employing after reactor circulation extracting filter got 8-30 gram, wood powder 50-100 gram, talcum powder 10-20 gram, the 2-8 of wooden sodium sulfonate gram, cypermethrin 1-2 gram, elm powder 10-15 gram after the drying, after stirring, can obtain the Kushujuzhi (picrasmathrin) wetting powder.
Claims (4)
1, a kind of Kushujuzhi (picrasmathrin) pesticide is characterized in that:
A, be raw material with the seed of hardship tree or cauline leaf, root skin, removal of impurities chopping, drying are pulverized the back and are added reactor, and the circulation extracting obtains filter cake and carries out drying, crushes and screens, and adds an amount of wooden sodium sulfonate and cypermethrin and mixes, and obtains wetting powder;
B, obtain extract, behind the normal temperature vacuum filtration, add emulsifier in proportion, add cypermethrin then in proportion and mix, obtain emulsion through reactor circulation extracting;
C, obtain extract, behind the normal temperature vacuum filtration, add an amount of lauryl sodium sulfate and cypermethrin and mix again, obtain aqua through reactor circulation extracting.
2, a kind of Kushujuzhi (picrasmathrin) pesticide according to claim 1, it is characterized in that aqua system is joined is: the mixture 30-80 gram of bitter tree extracting active matter, the sodium dodecyl sulfate solution 20-60 gram of 1-20%, blowing agent 2-12 gram, cypermethrin 1-2 gram, 0204 emulsifier 1-3 gram stir.
3, a kind of Kushujuzhi (picrasmathrin) pesticide according to claim 1 is characterized in that emulsion system is joined and is: the active matter 25-65 gram of ethanol extracting seed or cauline leaf, root skin, xylene mixture 25-65 gram, dodecyl sodium sulfonate calcium 3-11 gram, 0204 emulsifier 2-8 gram, turkey red oil 2-8 gram, the 2-8 of class of department gram, cypermethrin 1-2 gram, evenly mix.
4, a kind of Kushujuzhi (picrasmathrin) pesticide according to claim 1, it is characterized in that wetting powder system is joined is: adopt and get 8-30 gram, wood powder 50-100 gram, talcum powder 10-20 gram, the 2-8 of wooden sodium sulfonate gram, cypermethrin 1-2 gram, elm powder 10-15 gram behind the filtration cakes torrefaction after the reactor circulation extracting filter, stir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109057A CN1194783A (en) | 1997-04-01 | 1997-04-01 | Kushujuzhi (picrasmathrin) pesticide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109057A CN1194783A (en) | 1997-04-01 | 1997-04-01 | Kushujuzhi (picrasmathrin) pesticide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1194783A true CN1194783A (en) | 1998-10-07 |
Family
ID=5170879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97109057A Pending CN1194783A (en) | 1997-04-01 | 1997-04-01 | Kushujuzhi (picrasmathrin) pesticide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1194783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232895A (en) * | 2013-05-15 | 2013-08-07 | 福建紫红苑本草科技有限公司 | Natural magnolia incense and preparation method thereof |
-
1997
- 1997-04-01 CN CN97109057A patent/CN1194783A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232895A (en) * | 2013-05-15 | 2013-08-07 | 福建紫红苑本草科技有限公司 | Natural magnolia incense and preparation method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |