CN101223892B - Toosendanin-containing compound pesticide and preparing method thereof - Google Patents
Toosendanin-containing compound pesticide and preparing method thereof Download PDFInfo
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- CN101223892B CN101223892B CN2008100568762A CN200810056876A CN101223892B CN 101223892 B CN101223892 B CN 101223892B CN 2008100568762 A CN2008100568762 A CN 2008100568762A CN 200810056876 A CN200810056876 A CN 200810056876A CN 101223892 B CN101223892 B CN 101223892B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention provides a pesticide of a composition containing toosendanin and is prepared by materials with the following portions by weight: 50 to 70 portions of toosendan fruit, 35 to 55 portions of common threewingnut root, 30 to 50 portions of gleditsia, 35 to 55 portions of unbracteolated spurge root, 30 to 50 portions of tobacco leaves, 25 to 40 portions of aconitum, 30 to 55 portions of nux vomica and 30 to 55 portions of sophora flavescens ait. The pesticide of the invention has good flowing property in water and good adhesion when in use for crops with a constant spraying method, resulting in the control of various pests for fruit trees, vegetables, flowers, food crops, etc. In addition, the pesticide is provided with spectrum and can have a control rate above 90 percent within 72 hours when being diluted to 1,000 to 1,500 times and further has the advantages of low cost, good effect, low toxicity with no residue as well as no harm to people and livestock, thus having good application prospect.
Description
Technical field
The present invention relates to a kind of insecticide, particularly a kind of agricultural biological insecticide that contains toosendanin.
Background technology
Along with the application of agricultural chemicals more and more widely, human also more and more deep to the understanding of agricultural chemicals.Deep variation has taken place in the notion of the notion of agricultural chemicals, particularly insecticide.Today, we do not pay attention to " killing " but pay attention to " adjusting ".Insecticide desirable in the public mind should be " rationally biological insecticide " (Biorationl insecticides), promptly to pest efficient, to environment, to the insecticide of non-target organism safety.
Following several stages has been passed through in pesticide development: poor efficiency (inorganic pesticide is as arsenic preparation, mercurial); Safe poor efficiency (natural insecticide, the lasting period is short, and is environmentally safe, but some kind is to the high poison of mammal); Efficient high residue (organochlorine insecticide, high residue are difficult for metabolism); Highly-effective low-residue (organic phosphor, carbamate pesticide, easy metabolic degradation in environment, but most of mammals are had high acute toxicity); The high-efficiency low-toxicity low-residual (mostly be class natural products insecticide greatly, as class pyrethrins, class nicotine insecticide etc., and some accidental synthetic insecticides identical with the natural products mechanism of action that filter out); Efficient high selectivity low toxicity and low residue (insect growth regulator, IGR,, also selective) to natural enemy not only to mammalian safe.As seen, along with people to the reinforcement of the attention degree of environmental protection and the development of insect resistance, all demand is brought in constant renewal in insecticide variety always.
Summary of the invention
The object of the present invention is to provide the biological insecticides of a kind of efficient, low toxicity, low-residual.
Insecticide of the present invention is a raw material with the Chinese herbal medicine, extracts its active ingredient and is prepared into insecticide.Specifically, insecticide of the present invention is made by the raw material of following weight portion: Fructus meliae toosendan 50～70, thunder godvine 35～55, Chinese honey locust 30～50, the root of langdu 35～55, tobacco leaf 30～50, the rhizome of Chinese monkshood 25～40, vomiting nut 30～55, kuh-seng 30～55.Be preferably: Fructus meliae toosendan 60, thunder godvine 45, Chinese honey locust 40, the root of langdu 45, tobacco leaf 40, the rhizome of Chinese monkshood 32, vomiting nut 43, kuh-seng 43.
Insecticide of the present invention is prepared from by the extract of above-mentioned raw materials.Wherein preferred toosendanin accounts for 0.8～1.2% of extract dry weight.
The present invention also provides a kind of method for preparing described insecticide, and it comprises step: take by weighing above-mentioned materials of weight proportions, be chopped into meal, extraordinarily go into the organic solvent circulation by 2～4 of raw material gross weight and extract 2～4 times, each 2～3 hours, get extract.The gained extract can be further purified, and perhaps directly uses.The suitable synergist of preferred adding, as add the OP-10 (polyoxyethylene nonylphenol ether) of extract weight 5～15%, and proper amount of surfactant, the BS-12 of liquid weight 5～15% got as adding, stir after adding synergist and surfactant, promptly get insecticide of the present invention.Detecting pH is 4.0～5.2, and Baume degrees is 35～38, and wherein toosendanin content can reach 1.2% (weight).Wherein, the consumption of described organic solvent can be ethanol, dimethylbenzene, perhaps their mixture, and the compound that is preferably ethanol 60～90%, dimethylbenzene 10～40% is as extracting solvent.
Insecticide entry free-running property of the present invention is good, and the conventional spray method is used on crop, and gentle plate-out ability is good, can prevent and treat various pests such as fruit tree, vegetables, flowers and grain crop, have spectrum, be diluted to 1000～1500 times, the control efficiency in 72 hours can reach more than 90%.At the bottom of the insecticide cost of the present invention, effective, the low toxicity noresidue does not have harm to people and animals, has a good application prospect.
Embodiment
Further set forth the present invention below in conjunction with specific embodiment.Should be appreciated that these embodiment only are used to illustrate the present invention, and can not limit protection scope of the present invention
Embodiment 1
Raw material: Fructus meliae toosendan 60g, thunder godvine 45g, Chinese honey locust 40g, root of langdu 45g, tobacco leaf 40g, rhizome of Chinese monkshood 32g, vomiting nut 43g, kuh-seng 43g.
Get above-mentioned raw materials, be ground into meal, add 85% ethanol 1000ml and dimethylbenzene 300ml, circulation is extracted 3 times, each 2～3 hours, gets extract.Add 130g synergist OP-10 (polyoxyethylene nonylphenol ether), and 120g surfactant B S-12, stir, promptly get insecticide of the present invention.Detecting pH is 4.4, and Baume degrees is 36.5, and wherein toosendanin content reaches 1.2% (accounting for dry weight).
Embodiment 2
Raw material: Fructus meliae toosendan 70g, thunder godvine 35g, Chinese honey locust 50g, root of langdu 35g, tobacco leaf 30g, rhizome of Chinese monkshood 40g, vomiting nut 30g, kuh-seng 55g.
Get above-mentioned raw materials, be ground into meal, add 90% ethanol 1700ml, circulation is extracted 4 times, each 2～3 hours, gets extract.Add 90g synergist OP-10 (polyoxyethylene nonylphenol ether), and 100g surfactant B S-12, stir, promptly get insecticide of the present invention.Detecting pH is 6, and Baume degrees is 39, and wherein toosendanin content reaches 1.0% (accounting for dry weight).
Embodiment 3
Raw material: Fructus meliae toosendan 50g, thunder godvine 55g, Chinese honey locust 30g, root of langdu 55g, tobacco leaf 50g, rhizome of Chinese monkshood 25g, vomiting nut 55g, kuh-seng 30g.
Get above-mentioned raw materials, be ground into meal, add industrial alcohol 1400ml, dimethylbenzene 300ml, circulation is extracted 2 times, each 2～3 hours, gets extract.Add 13g synergist OP-10 (polyoxyethylene nonylphenol ether), and 90g surfactant B S-12, stir, promptly get insecticide of the present invention.Detecting pH is 4, and Baume degrees is 35, and wherein toosendanin content reaches 0.86% (accounting for dry weight).
Embodiment 4 effect experiments
Experiment one, the plant of participating in the experiment: jujube tree.
The insects of participating in the experiment: bridging worm, jujube step song, cotton bollworm, green plant bug, two spotted spider mite.
Experimental technique: experiment strain 10 strains contrast 2 strains, individual plant single pipe reason under the equal experiment condition.Get embodiment 1 insecticide, dilute 1000 times, adopt spray method, at florescence and fruit phase the experiment strain is sprayed respectively once, contrast does not spray.
The result shows, sprays that observation experiment strain insect disinfestations rate reaches 100% after 72 hours, and contrast strain insect pest is serious, and in addition, with respect to the contrast strain, experiment strain photosynthetic intensity increases by 30%, and fruit quality is high by 30%, volume increase 35%.
Experiment two, subjects: pear tree pesticide resistance pear sucker
Experimental technique: embodiment 1 insecticide dilute respectively 800 times and the dilution 1000 times by two processing, do not establish contrast.Each processing pear in full bearing period tree is sprayed medicine once, individual plant single pipe reason under the equal experiment condition.Every fixed point mark is found the insect population radix before the dispenser, investigation in 24 hours, 48 hours, 72 hours borer population alive calculates control efficiency after the dispenser.The result is as shown in table 1.
Table 1 insecticide of the present invention is to the control efficiency of pear sucker
| Former borer population | Effect after 24 hours | Effect after 48 hours | Effect after 72 hours | ||||
| Extension rate | Residual borer population | Control % | Residual borer population | Control % | Residual borer population | Control % | |
| 1000 | 153 | 115 | 25 | 31 | 80 | 14 | 91 |
| 800 | 126 | 90 | 26 | 19 | 85 | 6 | 97 |
72 hours control efficiency of insecticide of the present invention as can be seen from the above table reaches more than 90%, suitably provides working concentration can further improve result of use.Drug use of the present invention is after 12 hours, and nymph mucus disappears, and is nuisanceless to crop safety, can be used as the application of control pear sucker medicament.
Embodiment 5 toxicity tests
Experiment one, acute toxicity experience
Laboratory animal: Kunming mouse, body weight 18～22g
Experimental technique: 40 of Kunming mouses are divided into 4 groups, 10 every group, male and female half and half.Establish four dosage by Si Shi method suddenly, be respectively 1000mg/kg, 2150mg/kg, 4640mg/kg and 10000mg/kg,, observed 7 days to the respective sets disposable filling stomach of thing of not moving.Each treated animal is and sees death and poisoning symptom, LD50＞10000mg/kg as a result.
Experiment two, skin irritation test
Laboratory animal: large ear rabbit, body weight 2～3kg
Experimental technique: get four of large ear rabbits, test and sloughed backbone both sides dorsal body setae with hair remover in preceding 24 hours, about 2.5cm * the 2.5cm of area, getting embodiment 1 insecticide 0.5ml is applied on the side skin, offside skin in contrast, contaminating, water washes after 24 hours, observes bilateral skin reaction situation in 1,24,48 hour respectively at cleaning the back.
The result does not find the skin irritatin reaction, illustrates that this product is to the skin vacuum response.
Claims (10)
1. pesticide composition, its extract by the raw material of following weight portion is made: Fructus meliae toosendan 50～70, thunder godvine 35～55, Chinese honey locust 30～50, the root of langdu 35～55, tobacco leaf 30～50, the rhizome of Chinese monkshood 25～40, vomiting nut 30～55, kuh-seng 30～55, its method is to take by weighing raw material by weight ratio, be chopped into meal, extraordinarily going into the organic solvent circulation by 2～4 of raw material gross weight extracts 2～4 times, each 2～3 hours, get extract.
2. insecticide as claimed in claim 1, its raw material by following weight portion is made: Fructus meliae toosendan 60, thunder godvine 45, Chinese honey locust 40, the root of langdu 45, tobacco leaf 40, the rhizome of Chinese monkshood 32, vomiting nut 43, kuh-seng 43.
3. insecticide as claimed in claim 1 or 2 is characterized in that toosendanin accounts for 0.8～1.2% of extract dry weight in the described extract.
4. insecticide as claimed in claim 3, it also contains 5～15% synergist and/or 5～15% surfactant.
5. insecticide as claimed in claim 4 is characterized in that described synergist is OP-10, and described surfactant is BS-12.
6. method for preparing each described insecticide of claim 1～5, it comprises the steps: to take by weighing by weight ratio raw material, is chopped into meal, extraordinarily goes into the organic solvent circulation by 2～4 of raw material gross weight and extracts 2～4 times, each 2～3 hours, get extract.
7. method as claimed in claim 6, it also comprises adding synergist and/or surfactant in extract.
8. as claim 6 or 7 described methods, it is characterized in that described organic solvent is ethanol and/or dimethylbenzene.
9. method as claimed in claim 8 is characterized in that described organic solvent is the compound of the dimethylbenzene of 60～90% ethanol and 10～40%.
10. the application of each described insecticide of claim 1～5 in the control insect pest of the plant, described insect pest are the insect pest that bridging worm, jujube step song, cotton bollworm, green plant bug, two spotted spider mite or pear sucker cause.
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| CN2008100568762A CN101223892B (en) | 2008-01-25 | 2008-01-25 | Toosendanin-containing compound pesticide and preparing method thereof |
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| CN2008100568762A CN101223892B (en) | 2008-01-25 | 2008-01-25 | Toosendanin-containing compound pesticide and preparing method thereof |
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| CN101223892A CN101223892A (en) | 2008-07-23 |
| CN101223892B true CN101223892B (en) | 2011-04-20 |
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| CN101766197B (en) * | 2010-02-02 | 2012-09-26 | 刘长禄 | Plant-based microbial pesticide |
| CN102342307B (en) * | 2010-07-28 | 2014-04-30 | 曹玉梅 | Pollution-free biopesticide |
| CN102599200B (en) * | 2012-02-21 | 2014-07-23 | 南宁冠华农业科技有限公司 | Chinese medicinal herb plant protecting agent and preparation method thereof |
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| CN105660747A (en) * | 2016-04-13 | 2016-06-15 | 储志强 | Improved Chinese herb pesticide |
| CN105685137A (en) * | 2016-04-13 | 2016-06-22 | 储志强 | Preparation method of Chinese herbal medicine pesticide |
| CN105815352A (en) * | 2016-04-13 | 2016-08-03 | 储志强 | Chinese herbal medicinal pesticide |
| CN106234460A (en) * | 2016-07-15 | 2016-12-21 | 广西顺帆投资有限公司 | A kind of insecticide and preparation method thereof |
| CN106665610B (en) * | 2016-11-15 | 2019-01-04 | 中国科学院海洋研究所 | A kind of application of toosendanin as preparation spine tail worm insecticide |
| CN108056120A (en) * | 2017-12-14 | 2018-05-22 | 柳州市汉象教育咨询有限责任公司 | A kind of curara insecticide and preparation method thereof |
| CN108308207A (en) * | 2018-03-23 | 2018-07-24 | 夏文秀 | A kind of vegetable insecticide and preparation method thereof for vegetable cultivation |
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