CN101288413A - Tripterygium wilfordii compound pesticides for high effectively preventing and curing tea geometrid - Google Patents
Tripterygium wilfordii compound pesticides for high effectively preventing and curing tea geometrid Download PDFInfo
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- CN101288413A CN101288413A CNA2008100617006A CN200810061700A CN101288413A CN 101288413 A CN101288413 A CN 101288413A CN A2008100617006 A CNA2008100617006 A CN A2008100617006A CN 200810061700 A CN200810061700 A CN 200810061700A CN 101288413 A CN101288413 A CN 101288413A
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Abstract
The invention discloses a tripterygiumforrestii composite mixed insecticide for high-efficiency prevention and cure to tea geometrid, which belongs to the technical field of botanical insecticides and pesticides. The insecticide consists of the following components by weight percentage: 0.4 percent to 20 percent of crude tripterygiumforrestii extracts, 1 percent to 8 percent of tea saponin, 0 percent to 12 percent of dispersants, and 0 percent to 12 percent of emulsifiers and solvent or filler for the rest percentage. After the crude tripterygiumforrestii extracts are mixed with the tea saponin, the control effects to higher and lower instar larvaes of tea geometrid within 1 to 7 days after being treated can be outstandingly improved, and can be respectively increased by 5.68 to 11.10 times and 1.00 to 6.91 times, thus reducing the cost to use the pesticides and also being beneficial to protecting the tripterygiumforrestii which is a botanical pesticide resource. Therefore, the problem that both the effective control of the main injurious insecticide that is tea geometrid, and the drinking safety of tea in the tea production can not be maintained at the same time for a long time is solved. The composite mixed insecticide of the invention can be popularized and applied to the tea planting and pesticide production enterprises.
Description
Technical field
The present invention relates to the vegetable insecticide technical field of pesticide, relate in particular to the tripterygium wilfordii compound pesticides of a kind of high-efficiency prevention and control tea geometrid.
Background technology
Threatened by insects such as tea geometrid, tea false eye leafhopper, tea caterpillar, the black poison moth of tea, mite class, every year on average because of insect pest cause with a toll of 10～20%, wherein tea geometrid (Ectropis obliquaProut) is the most serious in whole year harm.Tea geometrid eats leaf, when generation is serious tea place in blocks is eaten up with larva, has a strong impact on tea yield and growth of tea plant.Because at effective biopesticide kind of tea geometrid seldom, the tea grower mostly is to rely on the consumption that reduces chemical pesticide or avoid using the chemical pesticide of high residue to prevent and treat tea geometrid as far as possible substantially, and the result still cannot say for sure to demonstrate,prove agricultural residual not the exceeding standard and quality of tea leaves of tealeaves.
Thunder godvine (Tripterygium wilfordii Hook) is Celastraceae, tripterygium plant, has another name called herba fibraureae recisae root, thunderbolt wood.Just being used for medical science and the various insects of control in China a long time ago, is one of famous Chinese medicine and pesticide plant, and its main active has alkaloids, Diterpenes, triterpenes, sesquiterpenoids and polysaccharide etc.The research of thunder godvine insecticidal action starts from the thirties in 20th century.From Beroza etc. finds insecticide active substance from thunder godvine since, many aspects such as separation, insecticidal activity, toxicity, the biological and chemical of thunder godvine insecticidal activity be synthetic have been launched research both at home and abroad.Thunder godvine insecticidal action main component is an alkaloids, the nontoxic or low toxicity to animals such as people, mouse, and easily degraded in environment.Triperygium wilfordii extractive is to European corn borer, diamond-back moth, cabbage caterpillar, various pests such as striped rice borer have stomach toxicity, food refusal, suppress to grow and avoid and keep away insecticidal activity such as lay eggs, but triperygium wilfordii extractive to the insecticidal action research of tea tree insect seldom, the rarely seen national inventing patent " purposes of the non-water extract of thunder godvine in the agricultural chemicals preparation " (patent No.: ZL 01141888.5) and the inventor's result of the test (Li Xiaojun, Chen Jianming, Yu Xiao equality, 2007, plant extracts is to the evaluated biological activity of tea tree primary pest, " entomology research is dynamic "---Chinese entomology the 8th national congress of meeting and academic nd Annual Meeting collection in 2007, Scientia Agricultura Sinica technology publishing house, the 286-289 page or leaf) etc. relate to triperygium wilfordii extractive in the minority paper tea geometrid larva is had certain toxic action, but effect is undesirable, and toxic action is slow, quick-acting is poor, as handling the 6th day growth inhibition ratio to tea geometrid 2 instar larvaes in back with the triperygium wilfordii extractive of 12.5-50 mcg/ml only is 15.12-37.43%, and the food ingestion rate that goes down only is 9.83-18.17%.
Tea Saponin (Tea saponin, TS) have another name called tea saponin or tea saponin, tea saponin, tea saponin, be by a class candy glucoside compound that extracts in the tea tree seed, by sugared body, glucoside unit and organic acid are formed, be a kind of well behaved natural surfactant, not only have good emulsifying, foaming, dispersion, infiltration, wetting isoreactivity effect, but also have anti-inflammatory, pain relieving, sterilization, pharmacological action such as antipruritic.Cold-blooded animal there is high poison, people and animals is waited the nontoxic or low toxicity of homoiothermy animal, and in environment, can degrade automatically.Tea Saponin belongs to the pentacyclic triterpene saponin, and organic solvent such as soluble in water, alcohols, organic acid is insoluble to aliphatic hydrocarbon and benzene kind solvent.Can improve the physicochemical property of soup after Tea Saponin and part agriculture chemical compounding use, reduce the consumption of former medicine, have certain synergistic effect.Hu Shaohai had proposed Tea Saponin first to the anti-synergistic effect that eliminated aphis of botanical pesticide-ageratochromene (Hu Shaohai, 1989, the anti-effect research that eliminates aphis of feverfew ageratochromene, Journal of Natural Science of Hunan Normal University, 12 (3): 255-261) in 1989.Ou Xiaoming etc. (1995) report, Tea Saponin to desinsection list pulvis have synergistic effect (Ou Xiaoming, Yu Shuying, Lin Xuemei etc., 1995, Tea Saponin in leafhopper and mythimna separata body to the synergistic effect of desinsection list, agricultural chemicals, 34 (12): 10-11).Hu Shaohai etc. (1998) report, Tea Saponin all has significant synergistic effect (Hu Shaohai, Hu Weijun, 1998, Tea Saponin synergistic effect research in the chemical pesticide emulsifiable concentrate to Methomyl, Cyhalothrin, hexythiazox and pyridaben, Scientia Agricultura Sinica, 31 (2): 30-35).Wang Xiaoyi etc. (1999) report, Tea Saponin to Bt, rotenone and Rogor have obvious synergistic effect (Wang Xiaoyi, HuangBing Qiu, 1999, Tea Saponin is measured Agricultural University Of South China's journal, (2): 32-35) to the synergistic effect of several agricultural chemicals.But Tea Saponin does not appear in the newspapers as yet to the synergistic effect of thunder godvine pest control.
Summary of the invention
The present invention seeks to, at the defective that desinsection quick-acting poor, insecticidal effect on the low side of vegetalitas triperygium wilfordii extractive insecticide to tea tree insect tea geometrid, provide a kind of after adding the lower vegetalitas synergist of aboundresources, price, can significantly improve tea tree insect tea geometrid control efficiency, tripterygium wilfordii compound insecticidal preparation that quick-acting is high.
The object of the invention is achieved by the following technical programs.
The tripterygium wilfordii compound pesticides of a kind of high-efficiency prevention and control tea geometrid, the component of this insecticide and the weight percent content of each component are:
Thunder godvine crude extract 0.4-20%
Tea Saponin 1-8%
Dispersant 0-12%
Emulsifier 0-12%
Solvent or filler complement to 100%.
Described dispersant is the mixture of a kind of or any two kinds of arbitrary proportions in sodium lignin sulfonate, NNO or the sodium phosphate trimer.
Described emulsifier is the mixture of a kind of or any two kinds of arbitrary proportions in neopelex, farming breast 0201, farming breast 0204, farming breast 0202, newborn 600 series of farming, Nongru-700 number, farming breast 0203 or the farming breast 0207.
Described solvent is the mixture of a kind of or any two kinds of arbitrary proportions in organic solvent dimethylbenzene, toluene, benzene, methyl alcohol, ethanol or the butanols.
Described filler is the mixture of a kind of or any two kinds of arbitrary proportions in diatomite, calcium carbonate activated, kaolin, white carbon black or the atlapulgite.
A kind of preparation method of high-efficiency prevention and control tea geometrid tripterygium wilfordii compound pesticides, after pressing the prescription weighing of compounded pesticides, with thunder godvine crude extract, Tea Saponin, dispersant, emulsifier and solvent or filler, after the method in common stirring, mixing, can be mixed with tripterygium wilfordii compound cream pesticide or wetting powder insecticide.
Beneficial effect of the present invention:
The one, though little to the toxic action of tea geometrid larva through testing clear and definite Tea Saponin itself; but with the triperygium wilfordii extractive preparation composite after; can significantly improve control efficiency to the tea geometrid larva; wherein; to tea geometrid low instar larvae and high instar larvae after processing, can distinguish in the 1st～7 day 5.68～11.10 times of synergy with 1.00～6.91 times; in view of the above; can reduce 85.02～94.14% and 50.00%～87.35% of thunder godvine consumption respectively; this had both reduced the agricultural chemicals use cost more than 50%, helped protecting this botanical pesticide resource of thunder godvine again.
The 2nd, China oil tea, tea resources enrich; the teaseed cake dregs annual production reaches more than 1,000,000 tons; make full use of this affluent resources, but every year 300000 tons of Tea Saponins of suitability for industrialized production at least, its price is low than the former medicine of thunder godvine; but with the former medicine of thunder godvine composite after both synergy; can reduce the drug cost of thunder godvine again, and can turn waste into wealth, the protection environment; increase farmers' income, have significant social and economic benefit.
The 3rd, the object of the invention system at tealeaves this can not be through cleaning, can only directly make tea the characteristics of drinking and propose, so the essential tealeaves persticide residue that guarantees is in allowed band, the present invention had both improved the control efficiency of triperygium wilfordii extractive to the tea geometrid larva, utilized thunder godvine insecticidal action main component to be alkaloids again, to the people, nontoxic or the low toxicity of animals such as mouse, and the characteristic of easy natural degradation in environment, thereby guaranteed that this extraordinary drinking food product of tealeaves uses the safety requirements of agricultural chemicals, efficiently solved the difficult problem that Tea Production is difficult to take into account for a long time between the effective control of tea tree primary pest one tea geometrid and tealeaves safe for drinking.
Embodiment
The present invention is described in further detail by following examples, but the present invention is not placed restrictions on by these contents.
Tea Saponin: east, Tea Inst., Chinese Academy of Agricultural Sciences Zhejiang tealeaves Science and Technology Ltd. produces, purity 62.36%;
Tripterygium root: be collected in Jinhua, Zhejiang.
The preparation method of embodiment 1:(tripterygium wilfordii compound pesticides)
(1) preparation of thunder godvine crude extract: with the root cleaning, drying of thunder godvine, pulverize back and 95% alcohol solvent by weight volume be 1 gram: 10 milliliters of ratios, extract with soxhlet extraction, extract promptly gets solid-state thunder godvine crude extract after concentrating;
(2) the reasonable assembly of thunder godvine crude extract and Tea Saponin:, determine to adopt the co-toxicity coefficient of two kinds of active ingredients at the appropriate proportioning more than 150 by indoor biologicall test to tea geometrid;
(3) screening of dispersant or emulsifier: utilize the compounded technology of agricultural chemicals, screen suitable dispersant, emulsifier, to increase the dispersive property and the field control effect of product;
(4) screening of filler or solvent: according to the chemical property and the instructions for use of active ingredient, screening appropriate filler or organic solvent carry out the processing of product;
(5) medicaments preparation: 1. missible oil: by proportioning two kinds of active ingredients fully being dissolved with solvent in container, add emulsifier, is the creaming agent product after stirring, filtration, detection, packing; 2. wetting powder: by proportioning with two kinds of active ingredients in container with the abundant mixing of filler, add dispersant, stir, finish the production of product through last handling processes such as comminution by gas stream, carry out the detection of active ingredient, packing.
Embodiment 2:(product one)
By thunder godvine crude extract 8%, Tea Saponin 8%, butanols 12%, farming breast 02046%, farming breast 02073%, complement to 100% with toluene and be mixed with the missible oil product, concrete preparation method is with embodiment 1.
Embodiment 3:(product two)
By thunder godvine crude extract 0.4%, Tea Saponin 2%, butanols 5%, farming breast 02015%, complement to 100% with dimethylbenzene and be mixed with the missible oil product, concrete preparation method is with embodiment 1.
Embodiment 4:(product three)
By thunder godvine crude extract 20.0%, Tea Saponin 4%, butanols 8%, farming breast 02027%, farming breast 6002.5%, complement to 100% with dimethylbenzene and be mixed with the missible oil product, concrete preparation method is with embodiment 1.
Embodiment 5:(product four)
By thunder godvine crude extract 20.0%, Tea Saponin 1%, butanols 3%, Nongru-700 #12%, complement to 100% with dimethylbenzene and be mixed with the missible oil product, concrete preparation method is with embodiment 1.
Embodiment 6:(product five)
By thunder godvine crude extract 0.4%, Tea Saponin 4%, lignin sodium sulfonate 4%, complement to 100% with kaolin and be mixed with wetting powder, concrete preparation method is with embodiment 1.
Embodiment 7:(product six)
By thunder godvine crude extract 10%, Tea Saponin 1%, sodium phosphate trimer 4%, NNO 8%, calcium carbonate activated 3%, complement to 100% with diatomite and be mixed with wetting powder, concrete preparation method is with embodiment 1.
Embodiment 8:(product seven)
By thunder godvine crude extract 0.4%, Tea Saponin 8%, sodium phosphate trimer 4%, lignin sodium sulfonate 6%, white carbon black 5%, complement to 100% with diatomite and be mixed with wetting powder, concrete preparation method is with embodiment 1.
Explanation to the described material of following test, method:
1, for the examination insect:
Tea geometrid (Ectropis obliqua Prout), do not adopt back the tea geometrid larva in the tea place of pesticide grown from Hangzhou tea science research institute, with the fresh tea leaf in its blade indoor feeding of contacted agricultural chemicals not, get low instar larvae (2 age) after the breeding generation and high instar larvae (4 age) is tested.Indoor feeding and experimental condition: Tm (temperature)=(26 ± 1) ℃, RH (relative moisture)=(85 ± 5) %, photoperiod L: D=12h: 12h, light intensity 1500-2000LUX.
2, reagent agent:
Thunder godvine crude extract (adopting embodiment 1 products made thereby);
Tea Saponin (62.36% purity, east, Tea Inst., Chinese Academy of Agricultural Sciences Zhejiang tealeaves Science and Technology Ltd. produces, batch number is 20070911S);
Test routine 1:(thunder godvine, Tea Saponin and composite dose of virulence test thereof) to the tea geometrid larva
Leaf dipping method is adopted in test.Will be in thunder godvine crude extract and Tea Saponin commodity and composite dose (in table 1,2, the 3 described content or the ratios) thereof of the present invention's preparation, with a small amount of butanols dissolving, be diluted to 5 concentration with clear water again, compare with thunder godvine crude extract, the agent of Tea Saponin list respectively, clear water is made blank; Get that 3-4 opens blade under the tea tree shoot top, dipping dries after 3 seconds naturally in soup; The blade that will dry is put into 2-3 for every bottle and is opened, and every bottle graft goes into 20 of 2 instar larvaes (or 4 instar larvaes), and bottleneck is pricked with 4 aspect towel paper bags, and every processing repeats 4 times; Connect worm and be placed on raising in the constant temperature illumination box, handle the back and press setting-up time inspection examination worm lethality, calculation correction lethality, virulence regression equation, correlation coefficient LC
50And co-toxicity coefficient.
Result of the test shows:
Tea Saponin 1mg/mL, 2mg/mL, 4mg/mL handled the back the 1st, 3,5,7 day, and the preventive effect of tea geometrid 2 instar larvaes all below 37.84%, illustrate, and Tea Saponin itself is to the toxic action of tea geometrid larva not quite (seeing Table 1).
Table 1 Tea Saponin is to the cytotoxicity of tea geometrid larva
After in the thunder godvine crude extract, adding Tea Saponin, thunder godvine control tea geometrid 2 instar larvaes and 4 instar larvaes all there is significant synergistic effect, its co-toxicity coefficient (see Table 2, table 3).
The different proportionings with Tea Saponin of table 2 thunder godvine are to the virulence test of tea geometrid 2 instar larvaes (behind the medicine 7 days)
| Medicament and proportioning | LC 50 | Co-toxicity coefficient |
| Thunder godvine: Tea Saponin (1: 1) | 0.014 | 354.7 |
| Thunder godvine: Tea Saponin (1: 5) | 0.005 | 993.4 |
| Thunder godvine: Tea Saponin (1: 10) | 0.008 | 620.8 |
| Thunder godvine: Tea Saponin (1: 20) | 0.024 | 206.9 |
| Thunder godvine: Tea Saponin (5: 1) | 0.006 | 827.8 |
| Thunder godvine: Tea Saponin (10: 1) | 0.012 | 413.9 |
| Thunder godvine: Tea Saponin (20: 1) | 0.021 | 236.5 |
| Thunder godvine | 4.967 | / |
The different proportionings with Tea Saponin of table 3 thunder godvine are to the virulence test of tea geometrid 4 instar larvaes (behind the medicine 7 days)
| Medicament and proportioning | LC 50(mg/ml) | Co-toxicity coefficient |
| Thunder godvine: Tea Saponin (1: 1) | 0.029 | 294.5 |
| Thunder godvine: Tea Saponin (1: 5) | 0.014 | 610.1 |
| Thunder godvine: Tea Saponin (1: 10) | 0.021 | 406.8 |
| Thunder godvine: Tea Saponin (1: 20) | 0.047 | 181.7 |
| Thunder godvine: Tea Saponin (5: 1) | 0.024 | 354.6 |
| Thunder godvine: Tea Saponin (10: 1) | 0.032 | 266.9 |
| Thunder godvine: Tea Saponin (20: 1) | 0.055 | 155.3 |
| Thunder godvine | 8.542 | / |
Test the field controling test of the different proportionings of routine 2:(thunder godvine and Tea Saponin) to the tea geometrid larva
Test is carried out in the test site of Hangzhou tealeaves research institute, if the product that is mixed (being the product of embodiment 2,3,4,5,6,7 and 8) of 7 thunder godvines and Tea Saponin, two concentration of treatment of each product, add triperygium wilfordii extractive missible oil (single agent), 2.5% time (cyhalothrin, the contrast medicament), clear water (blank), totally 17 processing, randomized arrangement, about 30 square metres of sub-district areas, handle the sub-district for totally 51.Tea geometrid is a low instar larvae during dispenser, the insect population radix of investigation tea geometrid larva before the medicine, and investigation in 1, the 7 day borer population of living behind the medicine calculates insect population go down rate and control efficiency.The result shows, thunder godvine and Tea Saponin different proportion are mixed to the preventive effect of tea geometrid larva all apparently higher than the preventive effect of single agent thunder godvine, Tea Saponin; Medicine preventive effect one day after is a little less than the contrast medicament, and wherein the preventive effect of product 2, product 5 is approaching with the contrast medicament; Behind the medicine seven days, the preventive effect of all products was all apparently higher than the contrast medicament.This explanation, thunder godvine and Tea Saponin are mixed and have obvious synergistic effect, and quick-acting, lasting effect good (seeing Table 4).
The different proportionings of table 4 thunder godvine and Tea Saponin are to the field control effect of tea geometrid larva
| Product | Working concentration | The 1st day preventive effect % | The 7th day preventive effect % |
| Product 1 (missible oil) | 500 times | 79.4 | 90.1 |
| 1000 times | 67.6 | 83.5 | |
| Product 2 (missible oil) | 500 times | 83.9 | 96.8 |
| 1000 times | 72.2 | 90.3 | |
| Product 3 (missible oil) | 500 times | 69.3 | 84.5 |
| 1000 times | 60.1 | 80.7 | |
| Product 4 (missible oil) | 500 times | 59.3 | 75.7 |
| 1000 times | 50.8 | 67.4 | |
| Product 5 (wetting powder) | 500 times | 81.6 | 94.5 |
| 1000 times | 71.4 | 88.2 | |
| Product 6 (wetting powder) | 500 times | 68.7 | 83.9 |
| 1000 times | 63.9 | 79.6 | |
| Product 7 (wetting powder) | 500 times | 56.5 | 72.1 |
| 1000 times | 45.7 | 60.8 | |
| 10% triperygium wilfordii extractive missible oil | 500 times | 37.5 | 48.6 |
| 62.36% Tea Saponin | 500 times | 9.2 | 28.7 |
| 2.5% time (contrast medicament) | 25 milliliters/mu | 88.3 | 65.2 |
Claims (5)
1, the tripterygium wilfordii compound pesticides of a kind of high-efficiency prevention and control tea geometrid is characterized in that the component of this insecticide and the weight percent content of each component are:
Thunder godvine crude extract 0.4-20%
Tea Saponin 1-8%
Dispersant 0-12%
Emulsifier 0-12%
Solvent or filler complement to 100%.
2, by the described insecticide of claim 1, it is characterized in that described dispersant is the mixture of a kind of or any two kinds of arbitrary proportions in sodium lignin sulfonate, NNO or the sodium phosphate trimer.
3,, it is characterized in that described emulsifier is the mixture of a kind of or any two kinds of arbitrary proportions in neopelex, farming breast 0201, farming breast 0204, farming breast 0202, newborn 600 series of farming, Nongru-700 number, farming breast 0203 or the farming breast 0207 by the described insecticide of claim 1.
4, by the described insecticide of claim 1, it is characterized in that described solvent is the mixture of a kind of or any two kinds of arbitrary proportions in organic solvent dimethylbenzene, toluene, benzene, methyl alcohol, ethanol or the butanols.
5,, it is characterized in that described filler is the mixture of a kind of or any two kinds of arbitrary proportions in diatomite, calcium carbonate activated, kaolin, white carbon black or the atlapulgite by the described insecticide of claim 1.
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| CN105123781A (en) * | 2015-08-27 | 2015-12-09 | 郎溪县毕桥镇裴九元茶叶种植家庭农场 | Complex insecticide capable of efficiently preventing and curing tea geometrid |
| CN108294056A (en) * | 2018-02-12 | 2018-07-20 | 平南县兴民龙藤茶业专业合作社 | A kind of synergetic pesticide composition of prevention tea geometrid |
| CN110679590A (en) * | 2019-09-18 | 2020-01-14 | 浙江嘉华化工有限公司 | Fosetyl-aluminum wettable powder composition |
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| CN101288413B (en) | 2010-12-29 |
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