CN101036477A - Chinese herbal medicine combined pesticide and method for preparing the same - Google Patents
Chinese herbal medicine combined pesticide and method for preparing the same Download PDFInfo
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- CN101036477A CN101036477A CNA2007100615909A CN200710061590A CN101036477A CN 101036477 A CN101036477 A CN 101036477A CN A2007100615909 A CNA2007100615909 A CN A2007100615909A CN 200710061590 A CN200710061590 A CN 200710061590A CN 101036477 A CN101036477 A CN 101036477A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
A Chinese herbal medicine complex vegetative pesticide is made by mixing Chinese herbal medicine extracting solution, stabilizer, penetrant, solubility promoter, and emulsifier, wherein the Chinese herbal medicine extracting solution is made by ethanol solution extraction of kuhseng, hellebore, lucid asparagus, wild aconite root, pinellia tuber, aztec tobacco, and etc. The medicine effect and control effect of the product can be improved according to the synergetic effect among medicines by reasonably mixing a plurality of Chinese herbal medicines such as kuhseng, hellebore, and etc. The medicine has short action time and long lasting period, and is not easy to generate resistance, which can be used for prevention and control of plant louse, cabbage worm, tea caterpillar, and etc on vegetables, fruit trees, tea leaf, tobacco leaf, and crop and cotton.
Description
Technical field
The present invention relates to a kind of agricultural chemicals, specifically relate to a kind of plant pesticide of making by combined Chinese herb.The invention still further relates to the preparation method of this plant pesticide.
Background technology
The history of the existing last 100 years of the use of chemical pesticide, for a long time, chemical pesticide has played huge protective effect for the volume increase good harvest of agricultural, for irreplaceable effect has been played in human progress and social development.But traditional chemical pesticide is when playing positive role to agricultural produce, prevention and elimination of disease and pests, and its negative effect of bringing also manifests day by day, and the ecological balance is destroyed, severe environmental pollution; Residue of pesticide cause crops quality to descend, and the oxious component accumulation is detrimental to health; Sick worm generally develops immunity to drugs, and control is more and more difficult or the like.Along with high development of social economy; people's living standard requires generally to improve; self-protection and self-health perception constantly strengthen; more and more recognize the importance of environmental protection; therefore, use public nuisance-free agricultural chemicals instead of chemical agricultural chemicals pollution-free, high-efficiency low-toxicity must become the development priority of novel agrochemical.
The plant resource environment friendly agricultural because of its raw material sources in natural plants, use and not destroy environment, to the person poultry safety, sick worm is difficult for developing immunity to drugs and is subjected to the great attention of various countries, is the safety-type agricultural chemicals of a class low toxicity and low residue.China is vast in territory, and multiple natural plants that abounds with such as kuh-seng, China tree, tobacco leaf, the tuber of stemona etc. are all effective to preventing and treating certain damage by disease and insect, has the advantageous advantage of development plant pesticide.
In recent years, though it is that raw material extracts the plant pesticide made from above-mentioned plant variety that China's Development and Production goes out multiple, emerge some plant resource environment friendly agriculturals preferably, for development low toxicity, low-residual, the low pesticide new variety that pollutes contribute, but, make progress comparatively slow owing to technology, laboratory facilities are limit.These action of agricultural chemicals are slow in the effect of diseases and pests of agronomic crop, quick-acting is generally not good, limited promoting the use of of its, be embodied in the ability of knocking down to insect, lethal time is long, and integrated control effect is low, often after the dispenser in one, two day insect also lose and die, the burst that more can not prevent insect spreads, and allows the peasant lose the confidence of using.This common defects that the plant resource environment friendly agricultural exists is to fail for many years to be accepted by vast farmers, and the main cause of failing to apply has on a large scale become its " bottleneck " that popularizes of restriction.
Some take the method that plant resource environment friendly agricultural and chemical pesticide is composite to improve the control efficiency of plant resource environment friendly agricultural, have obtained certain effect, have improved the quick-acting of plant resource environment friendly agricultural to a certain extent.But, owing to contain a certain amount of chemical pesticide in these Recompounded pesticides, not proper plant resource environment friendly agricultural, it has not existed as the advantage of plant resource environment friendly agricultural at aspect such as nuisanceless, free from environmental pollution yet.
Therefore, how reasonably to choose Chinese herbal medicine and carry out scientific matching, obtain the obvious results Chinese herbal medicine formula, and how faster, more effectively from Chinese herbal medicine, extract active ingredient, to improve the control efficiency of damage by disease and insect, be the problem that exploitation plant resource environment friendly agricultural presses for solution.
Summary of the invention
The purpose of this invention is to provide a kind of brand-new nontoxic, nuisanceless, pollution-free, by the plant extract preparation, do not add any chemicals, and act on the combined Chinese herb plant pesticide of diseases and pests of agronomic crop outstanding effect purely, to promote the green ecological Agricultural Development, guarantee health.
A kind of preparation method of said herbal medicine compound botanical pesticide being provided, being beneficial to the drug effect performance of this plant pesticide, further improve drug effect, is another goal of the invention of the present invention.
Combined Chinese herb plant pesticide of the present invention is that the component of following portions by weight is together composite,
Extracts of Chinese herbal medicine 80～100 stabilizing agents 5～10
Bleeding agent 2～5 cosolvents 0.5～1
Emulsifier 5～10
And be to make after 5～6.5 with the pH value of watery hydrochloric acid regulator solution.
Wherein, described extracts of Chinese herbal medicine is to be obtained after ethanolic solution extracts by the former medicine of the Chinese herbal medicine of following portions by weight:
Kuh-seng 30～50 black false hellebores 10～20
Asparagus 10～20 radix aconiti agrestis 8～12
The tuber of pinellia 3～5 Aztec tobaccos 10～20
Thickfruit millettia seed or fruit 5～10 fructus gleditsiaes 12～15.
Described ethanolic solution is that volume parts is 70% ethanolic solution.
Wherein, in described component:
Stabilizing agent can be any in epoxidation methyl stearate, glyceryl monostearate, dialkyl succinylsuccinate sulfonated ester, hydroxybenzyl phosphate, modified castor oil, the sulfurized castor oil etc., the preferred hydroxybenzyl phosphate of the present invention.
Bleeding agent can be any in alkylphenol polyoxyethylene, alkylphenol polyoxyethylene formaldehyde condensation products, lauryl alcohol sulphate, the Laurocapram etc., preferred alkyl phenol polyethenoxy ether of the present invention.
Cosolvent can be any in ethylene glycol, acetone, the cyclohexanone etc., the preferred cyclohexanone of the present invention.
Emulsifier can be any in alkylbenzenesulfonate, alkylsulfonate, alkyl phosphate, the alkyl polyoxyethylene ether phosphate etc., preferred alkyl benzene sulfonate of the present invention.
Concrete preparation method of the present invention is as follows:
With the former medicine of above-mentioned various Chinese herbal medicines selected after, be ground into 20～40 purpose particles;
2. get the former medicine of the Chinese herbal medicine that crushes, place extraction vessel, add 70% alcoholic solution be equivalent to 4～6 times of weight of former medicine,, filter, collect filtrate in 50～70 ℃, 0.02～0.05MPa leaching 2～5h down according to above-mentioned parts by weight;
3. add 70% ethanolic solution be equivalent to 2～4 times of weight of former medicine in the filter residue,, filter and also collect filtrate in 50～70 ℃, normal pressure leaching 2～3h down;
4. add 70% ethanolic solution be equivalent to 2～4 times of weight of former medicine in the filter residue again,, filter and also collect filtrate in 50～70 ℃, normal pressure leaching 2～3h down;
5. merge filtrate three times, be concentrated into 12～18% of original volume, proportionally even with stabilizing agent, bleeding agent, cosolvent and emulsifier, be 5～6.5 with the pH value of watery hydrochloric acid regulator solution; Obtain Pesticidal products of the present invention.
Among the preparation method of the present invention, the modes of emplacement of various Chinese herbal medicines in extraction vessel be preferably: the bottom that kuh-seng and Li Lu is placed on container, Aztec tobacco, thickfruit millettia seed or fruit and fructus gleditsiae are placed in the intermediate layer, and asparagus, radix aconiti agrestis and the tuber of pinellia then are placed on the superiors of container.Adopt this placement order, drug powder swims in the solvent surface in the time of can preventing the solution leaching on the one hand, leach incomplete phenomenon, on the other hand, the temperature that differing heights kept in the extraction vessel is complementary with the optimum soaking extracting temperature that is placed on this height medicine again, make various medicines that maximum leaching rate all be arranged, guaranteed to extract the maximum performance of medicine effect.
In the compound method of combined Chinese herb plant pesticide of the present invention, preferably according to the interpolation of bleeding agent, cosolvent, emulsifier, stabilizing agent order, earlier various auxiliary materials are mixed, adding extracts of Chinese herbal medicine more fully mixes, pH value with the watery hydrochloric acid regulator solution is 5～6.5 at last, preparation is left standstill natural subsidence, obtain stable combined Chinese herb plant pesticide after removing by filter sediment.
The present invention has taken into full account the characteristic of various Chinese herbal medicines, complex interactions mechanism between Chinese herbal medicine has been carried out rational simplification, by reasonable compatibility to multiple Chinese herbal medicines such as kuh-seng, Li Lu, rely on the synergy between each medicine, the drug effect and the integrated control effect of product have been improved, rapid-action, the lasting period is long, is difficult for producing resistance in the use.
Combined Chinese herb plant pesticide of the present invention has certain broad spectrum activity applicable to the control of various pests such as aphid, cabbage caterpillar, tea caterpillar, cotton bollworm, smaller green leaf hopper on vegetables, fruit tree, tealeaves, tobacco leaf, the grain and cotton crop.
Through HSPH of Mountain Western Medicine S University labour health and Hygiene Toxicology teaching and research room the present invention is carried out toxicity test, assay shows medicament male and female rat acute per os of the present invention, through skin LD
50All＞and 4640mg/kg, according to China's pesticide toxicity grading criteria, belong to low-toxin farm chemicals.Skin and eye irritation test also show skin and the eyes equal nonirritant of medicament of the present invention to rabbit.
Embodiment
Embodiment 1
Take by weighing kuh-seng 40Kg, the black false hellebore 16Kg, asparagus 16Kg, radix aconiti agrestis 10Kg, tuber of pinellia 3Kg, Aztec tobacco 15Kg, thickfruit millettia seed or fruit 8Kg, the fructus gleditsiae 12Kg that crush, according to kuh-seng and Li Lu at the bottom, Aztec tobacco, thickfruit millettia seed or fruit and fructus gleditsiae are in the intermediate layer, asparagus, radix aconiti agrestis and the tuber of pinellia are put into extraction vessel in the placement order of the superiors with various Chinese herbal medicines; 70% ethanolic solution that adds 600Kg in 60 ℃, 0.04MPa leaching 3h down, filters, and collects and obtains filtrate 550Kg; Add 70% ethanolic solution 350Kg in the filter residue,, filter, collect and obtain filtrate 330Kg in 60 ℃, normal pressure leaching 2h down; Add 70% ethanolic solution 350Kg in the filter residue again,, filter, collect and obtain filtrate 330Kg in 60 ℃, the following leaching of normal pressure 2h; Merge three times filtrate, concentrate and obtain the 200Kg extracts of Chinese herbal medicine.
In order 40Kg polyoxyethylene nonylphenol ether, 8Kg cyclohexanone, 100Kg calcium dodecyl benzene sulfonate, 80Kg hydroxybenzyl phosphate are mixed, adding extracts of Chinese herbal medicine 1000Kg more fully mixes, with watery hydrochloric acid the pH value of solution is adjusted to 5～6.5 at last, leave standstill natural subsidence, obtain the stable combined Chinese herb plant pesticide of 1200Kg after removing by filter sediment.
Embodiment 2
With kuh-seng 50Kg, black false hellebore 12Kg, asparagus 12Kg, radix aconiti agrestis 8Kg, tuber of pinellia 5Kg, Aztec tobacco 16Kg, thickfruit millettia seed or fruit 5Kg, fructus gleditsiae 12Kg according to kuh-seng and Li Lu at the bottom, Aztec tobacco, thickfruit millettia seed or fruit and fructus gleditsiae are in the intermediate layer, and asparagus, radix aconiti agrestis and the tuber of pinellia are put into extraction vessel in proper order in the placement of the superiors; 70% ethanolic solution that adds 700Kg in 65 ℃, 0.03MPa leaching 4h down, filters, and collects and obtains filtrate 650Kg; Add 70% ethanolic solution 300Kg in the filter residue,, filter, collect and obtain filtrate 280Kg in 65 ℃, normal pressure leaching 2h down; Add 70% ethanolic solution 300Kg in the filter residue again,, filter, collect and obtain filtrate 280Kg in 65 ℃, the following leaching of normal pressure 2h; Merge three times filtrate, concentrate and obtain the 180Kg extracts of Chinese herbal medicine.
In order 40Kg OPEO, 6Kg cyclohexanone, 80Kg neopelex, 80Kg hydroxybenzyl phosphate are mixed, adding extracts of Chinese herbal medicine 800Kg more fully mixes, with watery hydrochloric acid the pH value of solution is adjusted to 5～6.5 at last, leave standstill natural subsidence, obtain the stable combined Chinese herb plant pesticide of 1000Kg after removing by filter sediment.
Embodiment 3
Take by weighing kuh-seng 35Kg, the black false hellebore 20Kg, asparagus 18Kg, radix aconiti agrestis 10Kg, tuber of pinellia 4Kg, Aztec tobacco 12Kg, thickfruit millettia seed or fruit 6Kg, the fructus gleditsiae 15Kg that crush, according to kuh-seng and Li Lu at the bottom, Aztec tobacco, thickfruit millettia seed or fruit and fructus gleditsiae are in the intermediate layer, asparagus, radix aconiti agrestis and the tuber of pinellia are put into extraction vessel in the placement order of the superiors with various Chinese herbal medicines; 70% ethanolic solution that adds 500Kg in 55 ℃, 0.04MPa leaching 2.5h down, filters, and collects and obtains filtrate 450Kg; Add 70% ethanolic solution 400Kg in the filter residue,, filter, collect and obtain filtrate 380Kg in 55 ℃, normal pressure leaching 2h down; Add 70% ethanolic solution 400Kg in the filter residue again,, filter, collect and obtain filtrate 380Kg in 55 ℃, the following leaching of normal pressure 2h; Merge three times filtrate, concentrate and obtain the 180Kg extracts of Chinese herbal medicine.
In order 50Kg lauryl alcohol sulphate, 5Kg acetone, 60Kg dodecyl polyoxyethylene ether phosphate, 60Kg glyceryl monostearate are mixed, adding extracts of Chinese herbal medicine 1000Kg more fully mixes, with watery hydrochloric acid the pH value of solution is adjusted to 5～6.5 at last, leave standstill natural subsidence, obtain the stable combined Chinese herb plant pesticide of 1150Kg after removing by filter sediment.
Application examples 1:
In May calendar year 2001, agriculture chemical examination institution, Beijing uses medicament of the present invention, has carried out the test of pesticide effectiveness of control wheat aphid in doube bridge seed stations experimental field, Chaoyang District, Beijing City.
This test of pesticide effectiveness is as supplying to study thing with wheat breed " capital 9428 ", medicament of the present invention respectively is set to 1200 times of liquid, 1000 times of liquid and three dosage groups of 800 times of liquid, contrast 1500 times of liquid of medicament 10% imidacloprid wettable powder and clear water blank, totally 5 processing are set in addition.The result of the test of control wheat aphid is as follows:
Table 1 control wheat aphid field efficacy statistics
| Handle | The insect population radix | Medicine one day after | Behind the medicine four days | Behind the medicine seven days | |||
| Residual borer population | Preventive effect | Residual borer population | Preventive effect | Residual borer population | Preventive effect | ||
| 1200 times of liquid of the present invention | 675 | 71.25 | 90.70 | 112 | 92.07 | 222 | 91.20 |
| 1000 times of liquid of the present invention | 607.25 | 27 | 95.64 | 2.75 | 99.76 | 21.25 | 98.97 |
| 800 times of liquid of the present invention | 700.25 | 12.75 | 98.45 | 0 | 100.00 | 0 | 100.00 |
| 1500 times of liquid of control group | 621.25 | 196.25 | 69.97 | 0 | 100.00 | 5.25 | 99.64 |
| The clear water contrast | 439.5 | 465.25 | -- | 892.75 | -- | 1637 | -- |
Result of the test shows that each processed group control wheat aphid of medicament of the present invention all has quick-acting preferably, and its quick-acting is better than contrast medicament 10% imidacloprid wettable powder; Each processed group control wheat aphid of medicament of the present invention all has lasting effect preferably, and the lasting period can reach 7 the skys, and is suitable with contrast medicament 10% imidacloprid wettable powder.
Application examples 2:
In May calendar year 2001, agriculture chemical examination institution, Beijing uses medicament of the present invention, has experimental field carried out the test of pesticide effectiveness of control cabbage pieris in Guanzhuang County, Chaoyang District, Beijing City Ta Ying village.
This test of pesticide effectiveness is as supplying to study thing with head cabbage varieties " No. 88, wild cabbage ", medicament of the present invention respectively is set to 1200 times of liquid, 1000 times of liquid and three dosage groups of 800 times of liquid, contrast 2000 times of liquid of medicament 4.5% r and clear water blank, totally 5 processing are set in addition.The result of the test of control cabbage pieris is as follows:
Table 2 control cabbage pieris field efficacy statistics
| Handle | The insect population radix | Medicine one day after | Behind the medicine four days | Behind the medicine seven days | |||
| Residual borer population | Preventive effect | Residual borer population | Preventive effect | Residual borer population | Preventive effect | ||
| 1200 times of liquid of the present invention | 33.25 | 2 | 94.54 | 4.5 | 89.43 | 12.5 | 78.22 |
| 1000 times of liquid of the present invention | 31 | 0.5 | 98.42 | 1.5 | 96.22 | 4.5 | 91.99 |
| 800 times of liquid of the present invention | 31 | 0.5 | 98.54 | 0 | 100.00 | 0.5 | 99.11 |
| 2000 times of liquid of control group | 30.75 | 0.75 | 97.74 | 2 | 94.63 | 9.25 | 83.10 |
| The clear water contrast | 26.5 | 27.25 | -- | 33.5 | -- | 47.75 | -- |
Result of the test shows that each processed group control cabbage pieris of medicament of the present invention all has quick-acting preferably, and its quick-acting is suitable with contrast medicament 4.5% r; 1000 times of liquid of medicament of the present invention and 800 times of liquid control cabbage pieris have lasting effect preferably, and the lasting period can reach 7 the skys, and its lasting effect is better than 1200 times of liquid and contrast medicament 4.5% r.
Application examples 3:
In May calendar year 2001, Institute of Plant Protection, academy of agricultural sciences, Anhui Province uses medicament of the present invention, has carried out the test of pesticide effectiveness of control tea tree tea caterpillar on Anhui Province's Shucheng County 916 tea plantations.
This test of pesticide effectiveness medicament of the present invention respectively is set to 1200 times of liquid, 1000 times of liquid and three dosage groups of 800 times of liquid, and contrast 6000 times of liquid of medicament 10% permethrin milk oil and clear water blank, totally 5 processing are set in addition.The result of the test of control tea tree tea caterpillar is as follows:
Table 3 control tea tree tea caterpillar field efficacy statistics
| Handle | The insect population radix | Medicine one day after | Behind the medicine three days | Behind the medicine seven days | |||
| Residual borer population | Preventive effect | Residual borer population | Preventive effect | Residual borer population | Preventive effect | ||
| 1200 times of liquid of the present invention | 427 | 142 | 66.53 | 16 | 96.08 | 12 | 96.55 |
| 1000 times of liquid of the present invention | 361 | 109 | 69.62 | 8 | 97.68 | 5 | 98.30 |
| 800 times of liquid of the present invention | 312 | 88 | 71.61 | 4 | 98.66 | 2 | 99.22 |
| 6000 times of liquid of control group | 253 | 76 | 69.77 | 11 | 95.45 | 6 | 97.09 |
| The clear water contrast | 325 | 323 | -- | 311 | -- | 268 | -- |
Result of the test shows that each processed group of medicament of the present invention all can be killed the tea tree tea caterpillar effectively, and its preventive effect is higher, and the lasting period is more than 7 days, to tea tree safety.
Application examples 4:
In May calendar year 2001, Tea Inst., Chinese Academy of Agricultural Sciences uses medicament of the present invention, has carried out the test of pesticide effectiveness of control tea tree tea caterpillar in Hangzhou, Zhejiang province city Tea Inst., Chinese Academy of Agricultural Sciences test tea place.
This test of pesticide effectiveness medicament of the present invention respectively is set to 1200 times of liquid, 1000 times of liquid and three dosage groups of 800 times of liquid, and contrast 6000 times of liquid of medicament 10% permethrin milk oil and clear water blank, totally 5 processing are set in addition.The result of the test of control tea tree tea caterpillar is as follows:
Table 4 control tea tree tea caterpillar field efficacy statistics
| Handle | The insect population radix | Medicine one day after | Behind the medicine three days | Behind the medicine five days | |||
| Dead borer population | Preventive effect | Dead borer population | Preventive effect | Dead borer population | Preventive effect | ||
| 1200 times of liquid of the present invention | 52.8 | 36.5 | 76.1 | 51 | 96.7 | 52.8 | 100 |
| 1000 times of liquid of the present invention | 54.3 | 40 | 73.8 | 51.8 | 95.3 | 54 | 99.6 |
| 800 times of liquid of the present invention | 51.5 | 42 | 84.1 | 50.5 | 98.0 | 51.5 | 100 |
| 6000 times of liquid of control group | 55 | 50.3 | 91.2 | 53.6 | 97.7 | 54.7 | 99.7 |
| The clear water contrast | 44 | 0 | -- | 0.3 | -- | 0.3 | -- |
Result of the test shows that there is significant difference in the preventive effect of 6000 times of liquid of 1 day preventive effect and contrast medicament 10% permethrin milk oil behind each processed group medicine of medicament of the present invention, and 3～5 days preventive effect and control group preventive effect do not have significant difference behind the medicine.
Claims (9)
1, a kind of combined Chinese herb plant pesticide is that the component of following portions by weight is together composite,
Extracts of Chinese herbal medicine 80～100 stabilizing agents 5～10
Bleeding agent 2～5 cosolvents 0.5～1
Emulsifier 5～10,
And be to make after 5～6.5 with the pH value of watery hydrochloric acid regulator solution,
Wherein, described extracts of Chinese herbal medicine is to be obtained after ethanolic solution extracts by the former medicine of the Chinese herbal medicine of following portions by weight:
Kuh-seng 30～50 black false hellebores 10～20
Asparagus 10～20 radix aconiti agrestis 8～12
The tuber of pinellia 3～5 Aztec tobaccos 10～20
Thickfruit millettia seed or fruit 5～10 fructus gleditsiaes 12～15.
2, combined Chinese herb plant pesticide according to claim 1 is characterized in that described ethanolic solution is that volume parts is 70% ethanolic solution.
3, combined Chinese herb plant pesticide according to claim 1 is characterized in that described stabilizing agent is any one in epoxidation methyl stearate, glyceryl monostearate, dialkyl succinylsuccinate sulfonated ester, hydroxybenzyl phosphate, modified castor oil, the sulfurized castor oil.
4, combined Chinese herb plant pesticide according to claim 1 is characterized in that described bleeding agent is any one in alkylphenol polyoxyethylene, alkylphenol polyoxyethylene formaldehyde condensation products, lauryl alcohol sulphate, the Laurocapram.
5, combined Chinese herb plant pesticide according to claim 1 is characterized in that described cosolvent is any one in ethylene glycol, acetone, the cyclohexanone.
6, combined Chinese herb plant pesticide according to claim 1 is characterized in that described emulsifier is any one in alkylbenzenesulfonate, alkylsulfonate, alkyl phosphate, the alkyl polyoxyethylene ether phosphate.
7, the preparation method of the described combined Chinese herb plant pesticide of claim 1 is characterized in that:
1). with selected 20～40 purpose particles that are ground into of the former medicine of various Chinese herbal medicines;
2). get the former medicine of the Chinese herbal medicine that crushes, place extraction vessel, add 70% ethanolic solution be equivalent to 4～6 times of weight of former medicine,, filter, collect filtrate in 50～70 ℃, 0.02～0.05MPa leaching 2～5h down according to above-mentioned parts by weight;
3). add 70% ethanolic solution be equivalent to 2～4 times of weight of former medicine in the filter residue,, filter and also collect filtrate in 50～70 ℃, normal pressure leaching 2～3h down;
4). add 70% ethanolic solution be equivalent to 2～4 times of weight of former medicine in the filter residue again,, filter and also collect filtrate in 50～70 ℃, normal pressure leaching 2～3h down;
5). merge three times filtrate, be concentrated into 12～18% of original volume, proportionally even with auxiliary material stabilizing agent, bleeding agent, cosolvent and emulsifier, be 5～6.5 with the pH value of watery hydrochloric acid regulator solution, obtain product.
8, the preparation method of combined Chinese herb plant pesticide according to claim 7, it is characterized in that the placement of various Chinese herbal medicines in extraction vessel is in proper order for being placed on kuh-seng and Li Lu the bottom of container, Aztec tobacco, thickfruit millettia seed or fruit and fructus gleditsiae are placed in the intermediate layer, and asparagus, radix aconiti agrestis and the tuber of pinellia are placed on the superiors of container.
9, the preparation method of combined Chinese herb plant pesticide according to claim 7, the interpolation that it is characterized in that described auxiliary material is bleeding agent, cosolvent, emulsifier, stabilizing agent in proper order.
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| CNB2007100615909A CN100506042C (en) | 2007-03-13 | 2007-03-13 | Chinese herbal medicine combined pesticide and preparation method thereof |
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| CN101843263A (en) * | 2010-06-04 | 2010-09-29 | 董俊坤 | Pesticide for controlling disease and pest of rubber tree |
| CN103416438A (en) * | 2013-08-15 | 2013-12-04 | 章吉华 | Tamarix botanical insecticide |
| CN103651633A (en) * | 2013-12-27 | 2014-03-26 | 成都新朝阳作物科学有限公司 | Pesticide composition containing lightyellow sophora root and veratrum nigrum extracts, and preparation method and application thereof |
| CN103689017A (en) * | 2013-11-26 | 2014-04-02 | 天津市嘉禾兴农生物科技发展有限公司 | Composite plant source pesticide and preparation method thereof |
| CN106490039A (en) * | 2016-11-01 | 2017-03-15 | 南宁马瑞娜装饰工程有限公司 | A kind of biological insecticides for urban afforestation and preparation method thereof |
| CN106719954A (en) * | 2016-12-14 | 2017-05-31 | 安徽东健化工科技有限公司 | A kind of Chinese herbal medicine insect-pest composite pesticide and preparation method thereof |
| CN107333814A (en) * | 2017-06-14 | 2017-11-10 | 合肥助航生态农业科技有限公司 | Vegetable insecticide and preparation method thereof |
| CN107711917A (en) * | 2017-10-20 | 2018-02-23 | 杨广旦 | The method of plant material extraction organic agricultural chemicals and the organic agricultural chemicals extracted |
| CN109056313A (en) * | 2018-07-11 | 2018-12-21 | 合肥远科服装设计有限公司 | A kind of cloth antibacterial deodorant and preparation method thereof |
| CN109566657A (en) * | 2018-11-21 | 2019-04-05 | 河南科技学院 | A kind of composition and preparation method thereof for preventing and treating insect |
| CN109757527A (en) * | 2019-03-04 | 2019-05-17 | 邯郸市建华植物农药厂 | A kind of killing cabbage worm aqua and its production technology containing jervine |
| CN109805042A (en) * | 2019-03-04 | 2019-05-28 | 邯郸市建华植物农药厂 | A kind of killing aphids aqua and its production technology containing jervine |
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2007
- 2007-03-13 CN CNB2007100615909A patent/CN100506042C/en not_active Expired - Fee Related
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