CN102657239A - Plant extract and chemical pesticide compound pesticide and preparation method of pesticide - Google Patents

Plant extract and chemical pesticide compound pesticide and preparation method of pesticide Download PDF

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Publication number
CN102657239A
CN102657239A CN2012101379124A CN201210137912A CN102657239A CN 102657239 A CN102657239 A CN 102657239A CN 2012101379124 A CN2012101379124 A CN 2012101379124A CN 201210137912 A CN201210137912 A CN 201210137912A CN 102657239 A CN102657239 A CN 102657239A
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China
Prior art keywords
pesticide
chemical pesticide
obtains
plant extracts
heart
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CN2012101379124A
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Chinese (zh)
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杨敏丽
李建涛
剡根姣
郝凤霞
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Ningxia University
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Ningxia University
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Priority to CN2012101379124A priority Critical patent/CN102657239A/en
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Abstract

The invention relates to plant extract and chemical pesticide compound pesticide and a preparation method of the pesticide. The pesticide is characterized by consisting of the following ingredients in parts by weight: 1 part of brunnera extracts, 0.1 to 5 parts of abamectin, 0.1 to 3 parts of cosolvents, 0.1 to 2 parts of emulsifying agents and 0.1 to 4 parts of solvents, wherein the brunnera extracts are brunnera plant herb extracts, the cosolvents are tar base solution, the emulsifying agents are formed by mixing tween 80 and tritonX-100 according to a volume ratio being 2:8 to 8:2, and the solvents are acetone with the volume percentage being 40 to 80 percent. The plant extract and chemical pesticide compound pesticide has the advantages that the effect is obvious, the duration is longer than that of the traditional chemical pesticide, the medication times can be reduced, and the residue is reduced. The content of the chemical pesticide of abamectin in the plant extract and chemical pesticide compound pesticide is lower than the use concentration of the single preparation of the abamectin, and the goals of enhancing the efficiency and reducing the chemical pesticide consumption are reached.

Description

A kind of plant extracts and chemical pesticide compounded pesticides and preparation method thereof
Technical field
The present invention relates to a kind of plant extracts and chemical pesticide compounded pesticides and preparation method thereof.
Background technology
Botanical pesticide has characteristics such as low toxicity, low-residual, biologically active be various, environmentally friendly, but development cost are high, and drug effect is lower, and EDD is short, applies being restricted.Chemical pesticide is so that its quick-acting is fast, effectively kill pests is still the present main force in domestic and international agricultural chemicals market; But problems such as its " 3R " that causes, " three cause "; Severe contamination environment and agricultural product; Human beings'health is caused great harm, be unfavorable for the sustainable development of green agriculture.
Botanical pesticide and chemical pesticide is composite, both brought into play the two advantage separately, replenish deficiency separately again.Can play synergistic effect, reduce the consumption of chemical pesticide; Reduce residual contamination, delay the pesticide resistance of insect; Remedied the higher shortcoming .20 of plant pesticide slow, use cost since the nineties in century, the composite reagent of plant extracts and chemical pesticide has become one of important channel of agricultural chemicals enterprise exploitation pesticide new variety, has had the multiple complex preparation to be developed to product.
Summary of the invention
One of the object of the invention provides the plant extracts and the chemical pesticide compounded pesticides of a kind of efficient, safety, low-residual;
Two of the object of the invention provides the preparation method of a kind of above-mentioned plant extracts and chemical pesticide compounded pesticides.
A kind of plant extracts and chemical pesticide compounded pesticides, its special feature are, form as follows by weight: 1 part of OX-heart Piao seed extract, AVM 0.1-5 part, cosolvent 0.1-3 part, emulsifier 0.1-2 part, solvent 0.1-4 part; Wherein OX-heart Piao seed extract is an OX-heart Piao Zi plant herb extract, and cosolvent is a tar base solution, and emulsifier is that Tween 80 mixed composition with triton x-100 in 2: 8 to 8: 2 with volume ratio, and solvent is the acetone of volume fraction 40-80%.
Wherein the extraction process of plant extracts is following: OX-heart Piao Zi herb is dried in the shade, pulverizes, crosses 40 mesh sieves; The OX-heart Piao Zi dry powder that obtains with the ethanol cold soaking after ultrasonic method lixiviate; At least lixiviate is 3 times, and merging filtrate is then with the extract concentrating under reduced pressure that obtains; Solvent evaporated ethanol obtains OX-heart Piao Zi plant herb extract.
Wherein the preparation method of tar base solution is following: the ratio in 5g/100mL is dissolved the NaOH solution of coal tar with 0.1-1.0mol/L, promptly obtains tar base solution.
The preparation method of a kind of plant extracts and chemical pesticide compounded pesticides, its special feature is, comprises the steps:
(1) OX-heart Piao Zi herb is dried in the shade, pulverizes, crosses 40 mesh sieves, the OX-heart Piao Zi dry powder that obtains with the ethanol cold soaking after ultrasonic method lixiviate, lixiviate is 3 times at least; Merging filtrate; With the extract concentrating under reduced pressure that obtains, solvent evaporated ethanol obtains OX-heart Piao Zi plant extracts then;
(2) in the ratio of 5g/100mL the NaOH solution of coal tar with 0.1-1.0mol/L is dissolved, promptly obtain tar base solution;
(3), each component is hybridly prepared into solution gets final product according to proportioning any in the claim 1 to 3.
Because long-term, a large amount of, the single use of chemical pesticide AVM, chrysanthemum ester, phoxim; Diamond-back moth has produced resistance; Preventive effect greatly reduces, and plant extracts of the present invention and chemical pesticide compounded pesticides effect are obvious, and this medicine is long than the traditional chemical agricultural chemicals lasting period; Can reduce spraying times, reduce residual.The content of chemical pesticide AVM is lower than AVM list agent working concentration in this plant extracts and the chemical pesticide compounded pesticides application concentration, has reached synergy and has reduced the purpose of chemical pesticide consumption.And because OX-heart Piao Zi platymiscium source pesticide, its active ingredient kind is many, and mode of action variation can delay the drug-fast generation of diamond-back moth.
Embodiment
Embodiment 1:
1, the extraction of active ingredient: with OX-heart Piao Zi (OX-heart Piao Zi (Cynanchum komarovii); Asclepiadaceae (Asclepiadaceae) Cynanchum (Cynanchum) plant) herb (comprising root, stem, leaf, seed) dries in the shade, pulverizes, crosses 40 mesh sieves, obtains OX-heart Piao Zi dry powder.
Take by weighing a certain amount of OX-heart Piao Zi dry powder and put into triangular flask, adding weight is the ethanol of the volume fraction 95% of dry powder weight octuple, lixiviate 24h at room temperature, and ultrasonic then 40min filters, and obtains filtrating.Lixiviate 3 times merges 3 filtratings.The extract that obtains is changed in the ground round-bottomed flask, and with Rotary Evaporators concentrating under reduced pressure in water-bath, solvent evaporated (ethanol) obtains OX-heart Piao seed extract, and is subsequent use.
2, the preparation of tar base solution: take by weighing the coal tar of 5g, add the NaOH solution dissolving of 0.6mol/L, the NaOH solution with 0.6mol/L is settled to 100mL then, and is subsequent use.
3, the preparation of plant extracts and chemical pesticide compounded pesticides microemulsion: take by weighing OX-heart Piao seed extract 14g; After the acetone of the volume fraction 50% of adding 30mL, the dissolving of 5mL tar base solution; Add 10ml AVM (8% missible oil), add again and be plant extracts and chemical pesticide compounded pesticides after 10mL emulsifier (Tween 80 mixes with volume ratio with triton x-100 at 7: 3) stirs.
Add water and be settled to 100mL, promptly obtain plant extracts and chemical pesticide compounded pesticides microemulsion product 100mL.
Experiment and result with the foregoing description scheme gained plant extracts and chemical pesticide compounded pesticides microemulsion are following:
1, field trial and the result of control matrimony vine aphid.
If 10% (active ingredient OX-heart Piao Zi plant herb extract quality is 10%) complex microemulsion CA1000 times dilution (adding 1000 times of clear water dilutions), 1000 times of dilutions of 2.5% gamma cyhalothrin (adding 1000 times of clear water dilutions), 1500 times of dilutions of pleocidin (adding 1500 times of clear water dilutions), 3000 times of dilutions of Imidacloprid (adding 3000 times of clear water dilutions), 3000 times of dilutions of 40% phoxim (adding 3000 times of clear water dilutions) and 3000 times of dilutions of 1.8% AVM (adding 3000 times of clear water dilutions), 5 processing of spraying are treated to contrast with clear water.The experimental field is chosen matrimony vine tree and is grown fine, spacing in the rows 2m, line-spacing 2m, the age of tree 5 years, in matrimony vine aphid damage district and the insect population radix higher, worm amount distribution uniform.Use the small hand-held sprayer, the complete stool even spraying.Each treatment region is randomly drawed 10 branches, the mark of listing, and whole aphid quantity of investigation 20cm place, branch top leave dual sides are investigated the insect population radix before the dispenser, behind the medicine the 1st, 3,5,7,10,13d investigates remaining insect population quantity respectively.Calculate insect population go down rate and control efficiency respectively, see the following form 1.
Table 1 matrimony vine aphid field trial
2, field trial and the result of control diamond-back moth.With chemical pesticide 2.5% gamma cyhalothrin, 5% abamectin emulsifiable concentrate, pleocidin suspension, Imidacloprid 25% wetting powder, 40% phoxim is the contrast medicament.If 10% microemulsion CA500 doubly, 1000 times of 2.5% gamma cyhalothrins, 1500 times of pleocidin, 1000 times of Imidacloprids, 1000 times of 40% phoxims and 6 processing of 2000 times of liquid sprayings of 1.8% AVM, be treated to contrast with clear water.3 sub-districts of each sample, each sub-district diagonal 5 point sampling, 5 dishes in every district.Investigation 1,3,7,9, the insect population of 15d decrease rate, preventive effect.
Field trial data such as following table 2 to the control diamond-back moth:
Table 2 diamond-back moth field trial
The go down computational methods of rate and corrected mortality of above-mentioned insect population are:
Agricultural chemicals of the present invention and commercially available agricultural chemical AVM, phoxim, chrysanthemum ester, pleocidin, Imidacloprid have been done the field relatively; Can know by table 1, table 2; Long-term, a large amount of, the single use diamond-back moth of local chemical pesticide AVM, chrysanthemum ester, phoxim has produced resistance, and preventive effect greatly reduces, and this medicine is long than the traditional chemical agricultural chemicals lasting period; Can reduce spraying times, reduce residual.The content of chemical pesticide AVM is lower than AVM list agent working concentration in this plant extracts and the chemical pesticide compounded pesticides application concentration, has reached synergy and has reduced the purpose of chemical pesticide consumption.And because OX-heart Piao Zi platymiscium source pesticide, its active ingredient kind is many, and mode of action variation is so can delay the drug-fast generation of diamond-back moth.

Claims (4)

1. plant extracts and chemical pesticide compounded pesticides is characterized in that, form as follows by weight: 1 part of the plain seed extract of OX-heart, AVM 0.1-5 part, cosolvent 0.1-3 part, emulsifier 0.1-2 part, solvent 0.1-4 part;
Wherein OX-heart Piao seed extract is an OX-heart Piao Zi plant herb extract, and cosolvent is a tar base solution, and emulsifier is that Tween 80 mixed composition with triton x-100 in 2: 8 to 8: 2 with volume ratio, and solvent is the acetone of volume fraction 40-80%.
2. a kind of plant extracts as claimed in claim 1 and chemical pesticide compounded pesticides; It is characterized in that: wherein the extraction process of plant extracts is following: OX-heart Piao Zi herb is dried in the shade, pulverizes, crosses 40 mesh sieves, the OX-heart Piao Zi dry powder that obtains with the ethanol cold soaking after ultrasonic method lixiviate, lixiviate is 3 times at least; Merging filtrate; With the extract concentrating under reduced pressure that obtains, solvent evaporated ethanol obtains OX-heart Piao Zi plant herb extract then.
3. a kind of plant extracts as claimed in claim 1 and chemical pesticide compounded pesticides; It is characterized in that: wherein the preparation method of tar base solution is following: the ratio in 5g/100mL is dissolved the NaOH solution of coal tar with 0.1-1.0mol/L, promptly obtains tar base solution.
4. the preparation method of plant extracts and chemical pesticide compounded pesticides is characterized in that, comprises the steps:
(1) OX-heart Piao Zi herb is dried in the shade, pulverizes, crosses 40 mesh sieves, the OX-heart Piao Zi dry powder that obtains with the ethanol cold soaking after ultrasonic method lixiviate, lixiviate is 3 times at least; Merging filtrate; With the extract concentrating under reduced pressure that obtains, solvent evaporated ethanol obtains OX-heart Piao Zi plant extracts then;
(2) in the ratio of 5g/100mL the NaOH solution of coal tar with 0.1-1.0mol/L is dissolved, promptly obtain tar base solution;
(3), each component is hybridly prepared into solution gets final product according to proportioning any in the claim 1 to 3.
CN2012101379124A 2012-05-04 2012-05-04 Plant extract and chemical pesticide compound pesticide and preparation method of pesticide Pending CN102657239A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104068072A (en) * 2014-06-19 2014-10-01 陈啟文 Novel pesticide
CN104126616A (en) * 2014-08-09 2014-11-05 桂林桂开生物科技股份有限公司 Composite abamectin/beta-cypermethrin emulsifiable concentrate plant source biological pesticide
CN105325451A (en) * 2015-11-27 2016-02-17 沧州大洋化工有限责任公司 Insecticide composition and preparation method thereof
CN105360116A (en) * 2015-11-27 2016-03-02 沧州大洋化工有限责任公司 Herbicide composition and preparation method therefor
CN105409929A (en) * 2015-11-27 2016-03-23 沧州大洋化工有限责任公司 Pesticide stabilizing synergist and preparation method thereof
CN106973946A (en) * 2017-05-25 2017-07-25 中国科学院西北高原生物研究所 A kind of compounded pesticides of the extract containing The Leaves And Stems of Stellera Chamaejasme

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GB2296496A (en) * 1994-12-23 1996-07-03 Xenova Ltd Pharmaceutical pregnane derivatives
CN1918993A (en) * 2006-09-19 2007-02-28 东莞市农业科学研究中心 Pesticide composition containing avermectin and butyl ether urea and its application
CN101061809A (en) * 2007-03-28 2007-10-31 陆致平 Tylophorine emamectin benzoate microemulsion of botanical insecticide
CN102396474A (en) * 2011-12-20 2012-04-04 广西田园生化股份有限公司 Pesticide composition containing spinetoram and biogenic pesticide

Patent Citations (4)

* Cited by examiner, † Cited by third party
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GB2296496A (en) * 1994-12-23 1996-07-03 Xenova Ltd Pharmaceutical pregnane derivatives
CN1918993A (en) * 2006-09-19 2007-02-28 东莞市农业科学研究中心 Pesticide composition containing avermectin and butyl ether urea and its application
CN101061809A (en) * 2007-03-28 2007-10-31 陆致平 Tylophorine emamectin benzoate microemulsion of botanical insecticide
CN102396474A (en) * 2011-12-20 2012-04-04 广西田园生化股份有限公司 Pesticide composition containing spinetoram and biogenic pesticide

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104068072A (en) * 2014-06-19 2014-10-01 陈啟文 Novel pesticide
CN104126616A (en) * 2014-08-09 2014-11-05 桂林桂开生物科技股份有限公司 Composite abamectin/beta-cypermethrin emulsifiable concentrate plant source biological pesticide
CN105325451A (en) * 2015-11-27 2016-02-17 沧州大洋化工有限责任公司 Insecticide composition and preparation method thereof
CN105360116A (en) * 2015-11-27 2016-03-02 沧州大洋化工有限责任公司 Herbicide composition and preparation method therefor
CN105409929A (en) * 2015-11-27 2016-03-23 沧州大洋化工有限责任公司 Pesticide stabilizing synergist and preparation method thereof
CN105409929B (en) * 2015-11-27 2018-11-02 沧州大洋化工有限责任公司 A kind of pesticide stabilizing synergistic agent and preparation method thereof
CN106973946A (en) * 2017-05-25 2017-07-25 中国科学院西北高原生物研究所 A kind of compounded pesticides of the extract containing The Leaves And Stems of Stellera Chamaejasme

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