CN102057955A - Application of pyrethrin in preventing and controlling Aleurodicus disperses Russell and pyrethrin synergistic composition - Google Patents
Application of pyrethrin in preventing and controlling Aleurodicus disperses Russell and pyrethrin synergistic composition Download PDFInfo
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- CN102057955A CN102057955A CN201010593658XA CN201010593658A CN102057955A CN 102057955 A CN102057955 A CN 102057955A CN 201010593658X A CN201010593658X A CN 201010593658XA CN 201010593658 A CN201010593658 A CN 201010593658A CN 102057955 A CN102057955 A CN 102057955A
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- spiral aleyrodid
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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
Abstract
The invention discloses application of pyrethrin in preventing and controlling Aleurodicus disperses Russell and a pyrethrin synergistic composition. When the pyrethrin is applied in preventing and controlling the Aleurodicus disperses Russell, the effect is best, the dosage is a little and the killing effect is quick; and when the pyrethrin is further mixed with kerosene-soap mixed solution, the poisoning and killing effect of the natural pyrethrin on the Aleurodicus disperses Russell can be obviously improved, and the natural pyrethrin has high efficiency, low toxicity and low residue and has good application prospect in the pest control aspect.
Description
Technical field
The invention belongs to pesticide producing processing and operation technique field, relate to a kind of plant insecticide, be specifically related to application and a kind of pyrethrin synergistic compound of pyrethrin aspect control spiral aleyrodid.
Background technology
The spiral aleyrodid (
Aleurodicus dispersusRussell) belong to Homoptera (Homoptera), Aleyrodidae (Aleyrodidae), little Aleyrodes is a kind of global polyphagy insect.Spiral aleyrodid host range is very extensive, farm-forestry crops such as serious harm vegetables, fruit tree, ornamental plants, street tree and forest.This worm originates from Central America and Caribbean area, has been distributed in Europe, Asia, Africa, America and Oceanian more than 50 countries and regions (Xu Yan, 1999) at present.Reported first spiral aleyrodid invasion China Taiwan (Wen Hongzhi in 1988,1994), found that this worm invaded Lingshui, Hainan Province county (Yu Guoyue etc. in 2006,2007), the distribution of spiral aleyrodid was arranged in 15 cities and counties in Hainan Island in 2008, though the spiral aleyrodid is a kind of insect of new invasion, its harm is quite serious.The spiral aleyrodid is in the host plant kind in Hainan Province kind more than 70 nearly, is injured the heaviest with fruit tree such as guava, sugar-apple, papaya papaw, banana, TERMINALIA CATAPPA, India red sandalwood and street tree.The agriculture and forestry of Hainan and even China mainland have been produced to constitute and threatened (Liu Kui etc., 2008) greatly.
At present, chemical pesticide (Wen etc., 1995 are mainly adopted in the control of spiral aleyrodid; Mariam and Chandramohan, 2001; Yao Gang etc., 2008), a large amount of uses of chemical pesticide not only cause environmental pollution, and can cause the generation of agricultural chemicals " 3R " (pesticide resistance resistance, rampant again resurgence, residual residue).Botanical pesticide is efficient, safety, Environmental compatibility is good and meet agriculture and forestry sustainable development requirement.Therefore, by the control action of further investigation plant resource active substance to the spiral aleyrodid, can provide new approaches and methods for the comprehensive regulation of spiral vermicelli lice, this also is a research focus of preventing and treating the spiral aleyrodid at present both at home and abroad.Dubey and Sundararay(2004) result of study shows that neem extract has the better prevention effect to the spiral aleyrodid, clock mounds etc. (2009) have been studied the toxic effect of plant alcohol extractses such as fragrant eupatorium herb, Celosia argentea, false Betel, jack fruit, sensitive plant and hill gooseberry to the spiral adult whitefly.
Pyrethrin (pyrethrins) be from Dalmatian chrysanthemum (
Pyrethrum cinerariifoliumTrev.) spend eriifoliun Trebr) in the mixture of active principles with insecticidal effect of separating and extracting, it mainly is made up of pyrethrin I (pyrethrins I), pyrethrin II (pyrethrins II).At present, pyrethrin is applied to prevent and treat insect (Chen Fenglian etc., 2005 such as prodenia litura, cabbage caterpillar, Americal rice leaf miner and vegetable aphid; Xiong Guilian etc., 2007; Lu Jijun etc., 2009; Wang Zhongwei etc., 2010); Do not see about pyrethrin control of spiral aleyrodid and the technology report that pyrethrin is mixed the synergistic effect of using control spiral aleyrodid with kerosene and liquid soap.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing insecticide control spiral aleyrodid technology, the new application of pyrethrin aspect control spiral aleyrodid is provided.
Another object of the present invention provides a kind of plant insecticide-pyrethrin synergistic compound.
Purpose of the present invention is achieved by the following technical programs:
The application of pyrethrin aspect control spiral aleyrodid is provided, and preferred scheme is that the pyrethrin with 4～20ppm concentration is applied to prevent and treat the spiral aleyrodid.
Preferably, to recommend working concentration be that the pyrethrin of 4ppm is applied to indoor control spiral aleyrodid in the present invention; Working concentration is that the pyrethrin of 20ppm is applied to field control spiral aleyrodid.
Preferably, the present invention is main active component with pyrethrin, prepare the plant insecticide of the control spiral aleyrodid of a kind of efficient, low toxicity, low-residual, be a kind of cream preparation, contain the percent by volume example and be 5% pyrethrin, 85% solvent and 10% emulsifier.
The present invention can adopt the source of natural pyrethrosin primary oil as the pyrethrin composition, the raw material of 5% pyrethrin emulsion preparation of the present invention comprises that (the pyrethrin effective content in the natural pyrethrosin primary oil is 50% to 50% natural pyrethrosin primary oil, in addition 50% is the solvent that itself contains), the solvent and the emulsifier that add after during formulated, described natural pyrethrosin primary oil, after the solvent that adds and the volume ratio of emulsifier be 1:8:1; The preferred cyclohexanone of the solvent that adds after described, the preferred farming breast 0206 of emulsifier.
The preparation method of described 5% pyrethrin emulsion preparation is: according to stereometer, get 1 part of 50% pyrethrin crude oil, add 8 parts of cyclohexanone with the dissolving of pyrethrin crude oil, add 1 part of newborn 0206 emulsifier of farming then, shake up and promptly get 5% pyrethrin missible oil.
Pyrethrin is an active component of the present invention.Pei Zhi 5% pyrethrin missible oil as stated above, its active component can be scattered in the solution equably, and described cream preparation was placed in 0 ± 1 ℃ of refrigerator 7 days or 35 ± 2 ℃ of lucifuges were placed after 14 days, had good stability.
The present invention provides a kind of pyrethrin synergistic compound simultaneously, aforementioned 5% pyrethrin emulsion preparation and kerosene soap mixture be mixed obtain, the weight ratio of kerosene, soap and water is 1.4:0.6:3.4 in the described kerosene soap mixture, is that feedstock production obtains (described percentage is weight percentage) with 25.9% kerosene, 11.1% soap and 63% water perhaps.
The preparation method of described kerosene soap mixture is: get 0.6 weight portion soap, join heating for dissolving in 3.4 weight parts waters, add 1.4 weight portion kerosene then, fully stirring gets final product.
The preparation method of described pyrethrin synergistic compound is:
According to volume portion, get 1 part of kerosene soap mixture, convert 20 parts in water, fully stir, as A solution; Get 1 part of described 5% pyrethrin emulsion preparation, convert 1000～2000 parts in water, fully stir, as B solution; Two kinds of solution equal-volumes of A, B are mixed promptly.
The application of described pyrethrin synergistic compound, be that described pyrethrin synergistic compound is sprayed (blade is squirted desire to drip for good) control spiral aleyrodid on the positive and negative of trees blade, for example, pyrethrin synergistic compound of the present invention can be sprayed on leaves such as guava, India red sandalwood or TERMINALIA CATAPPA, soup evenly disperses and adheres on the blade, can effectively prevent and treat the spiral aleyrodid, suppress the growth of its population quantity, alleviate spiral aleyrodid causing harm fruit tree and street tree.
The invention has the beneficial effects as follows:
The applicant has selected the various plants extract, comprise a large amount of natural plant extracts such as stemonine, nimbin, Osthole, sanguinarine, rotenone, matrine, lantana extract, pyrethrin, Celastrus angulatus, indoor the spiral adult whitefly has been carried out toxicity test, to the result of the test analysis of summarizing, find that pyrethrin is the strongest to the lethal effect of spiral aleyrodid, and sum up further that to obtain working concentration be 4～20ppm pyrethrin and can reach more than 90% the control efficiency of spiral adult whitefly.Pyrethrin is applied to prevent and treat the spiral aleyrodid, and effect is best, consumption seldom, knockdown effect is fast, the vegetable insecticide pyrethrin to the toxic action of insect rapidly, efficient, low toxicity, low-residual, aspect control of insect, good prospects for application is arranged.
The applicant sums up lot of experiment results according to the characteristics of spiral aleyrodid, and pyrethrin is mixed use with kerosene and liquid soap according to suitable ratio, can obviously improve the toxic effect of natural pyrethrum to the spiral adult whitefly.
Description of drawings
Fig. 1 variable concentrations pyrethrin uses the virulence of tagging to the spiral adult whitefly separately;
Fig. 2 pyrethrin and kerosene and soap different proportion are mixed to the virulence of tagging of spiral adult whitefly;
Fig. 3 pyrethrin and kerosene and soap are mixed and use the tag virulence of back to spiral aleyrodid nymph in 2,3 age;
Fig. 4 pyrethrin and kerosene and soap are mixed and use the tag virulence of back to spiral aleyrodid nymph in 3,4 age;
Fig. 5 pyrethrin and kerosene and soap are mixed and use the field control effect of back to the spiral adult whitefly.
Embodiment
Further describe the present invention below in conjunction with specific embodiment, employed test method is conventional method if no special instructions among the following embodiment; Employed material, reagent etc. if no special instructions, are the reagent and the material that can obtain from commercial channels.
Embodiment 1The preparation method of 5% pyrethrin emulsion preparation:
(present embodiment pyrethrin crude oil is available from south, Yunnan precious plant Co., Ltd to measure 1.0 ml, 50% pyrethrin crude oil, mainly contain pyrethrins I (pyrethrin I) and pyrethrins II(pyrethrin II), their content is respectively 26.50% and 23.04%) in 15ml tool plug test tube, add the 8ml cyclohexanone and be stirred to dissolving, add 1ml farming breast 0206 again, shake up 5% pyrethrin emulsion preparation.
Measure the toxic effect of 5% pyrethrin missible oil to the spiral adult whitefly:
With 5% pyrethrin missible oil convert water be diluted to 0.25,0.5,1.0,2.0 and 5 concentration such as 4.0ppm handle.Get the leaf dish that the olive kernel leaf sheet is cut into diameter d=7cm, (diameter d=7cm), insert 30～35 of spiral adult whiteflies is put into the culture dish that connects worm in the spray tower, every processing 1ml soup of quantitatively spraying to put into the culture dish that is lined with moistening filter paper.To spray clear water is contrast, and 5 repetitions are established in every processing.Handle the dead borer population of back 24h investigation spiral adult whitefly, calculate lethality.Experimental result is seen shown in the accompanying drawing 1.
From accompanying drawing 1 as can be known, the spiral adult whitefly lethality that 5% pyrethrin missible oil is handled except 0.25ppm concentration with contrast difference remarkable, the spiral adult whitefly lethality that other set concentration are handled is all remarkable with contrast difference, these concentration processing that 5% pyrethrin missible oil is described have tangible toxic action to the spiral adult whitefly, and along with the increase of working concentration, its toxic action obviously strengthens.When the 0.5ppm low concentration, lower to the toxic action of spiral adult whitefly, average mortality has only 17.5%; When concentration is increased to 2ppm when above, the average mortality of spiral adult whitefly can reach more than 59.7%.In the Toxicity Determination experiment, the pyrethrin insecticidal effect of 4ppm concentration is good.
Embodiment 2The preparation method of pyrethrin synergistic compound
Take by weighing 6g soap (commercially available) in the 100ml beaker, add water 34g, heat on electric furnace, heating while stirring dissolves soap fully, adds the kerosene of 14g immediately, and stirring to obtain the kerosene soap mixture;
Get 1 part of described kerosene soap mixture (volume ratio), convert 20 parts in water, fully stir, as A solution; Get described 1 part of 5% pyrethrin emulsion preparation (volume ratio), convert 1000～2000 parts in water, fully stir, as B solution; Two kinds of solution equal-volumes mixing of A, B are promptly got the pyrethrin synergistic compound.
Embodiment 3Measure 5% pyrethrin emulsion preparation and variable concentrations kerosene and soap mixture and be mixed the back the experiment of the toxic effect of spiral adult whitefly
The ratio that pyrethrin and variable concentrations kerosene and soap are mixed is shown in Table 1, and to the poisoning synergistic effect of spiral adult whitefly, result of the test is seen accompanying drawing 2 when measuring pyrethrin and variable concentrations kerosene and soap and be mixed by the spray method of embodiment 1.
The ratio that table 1 pyrethrin and variable concentrations kerosene and soap are mixed
| Handle | A | A+B2 | A+B2+C1 | A+B2+C2 | A+B3+C2 | A+B1+C2 | A+C2 | CK |
| Pyrethrin concentration (ppm) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0 |
| Kerosene concentration (%) | 0 | 0.6 | 0.6 | 0.6 | 1.0 | 0.25 | 0 | 0 |
| Soap concentration (%) | 0 | 0 | 0.15 | 0.25 | 0.25 | 0.25 | 0.25 | 0 |
Can understand from accompanying drawing 2,0.5ppm the pyrethrin of concentration uses separately or mix with kerosene or with soap use after, the average mortality of spiral adult whitefly is all lower, and the pyrethrin of 0.5ppm concentration mixes with 0.6～1.0% kerosene and 0.25% soap and uses the back that the toxic action of spiral adult whitefly is obviously strengthened, and the lethality of spiral adult whitefly reaches 57.9～59.3%.This result shows that the kerosene of suitable proportion and soap mixed liquor have obvious synergistic effect to the insecticidal action of 5% pyrethrin missible oil.
Embodiment 4Measure the toxic effect test of back that be mixed of 5% pyrethrin missible oil and kerosene and soap mixture to spiral aleyrodid nymph in the different length of time
Because spiral aleyrodid nymph at advanced age body by thick wax coat, for adhesion, the osmosis that strengthens medicament, has therefore suitably increased the usage amount of kerosene, concrete processing setting is shown in Table 2, and result of the test is seen accompanying drawing 3 and accompanying drawing 4.
The processing setting that table 2 5% pyrethrin and kerosene and soap are mixed
| Handle | A | A+B+C | B+C | CK |
| Pyrethrin concentration (ppm) | 50 | 50 | 0 | 0 |
| Kerosene concentration (%) | 0 | 2.0 | 2.0 | 0 |
| Soap concentration (%) | 0 | 0.12 | 0.12 | 0 |
Passable solving from accompanying drawing 3 and accompanying drawing 4, with concentration is that the pyrethrin of 50ppm and kerosene (2%) and soap (0.12%) are mixed and use the back that the toxic action of spiral aleyrodid nymph is significantly improved, the adhesivity and the dispersive property of spraying back soup are good, soup adheres to evenly, and respectively repeating all has effect preferably.
Embodiment 5Field control effect to the spiral adult whitefly after 5% pyrethrin missible oil and kerosene and soap mixture are mixed is tested
Select the spiral aleyrodid a situation arises 3 of heavier guavas, be chosen to (long 0.8～1.1m) 4 in a fairly large number of branch of worm in different azimuth with one tree, press the preparation method of embodiment 2 described pyrethrin synergistic compounds, prepare 20ppm pyrethrin soup, 5ppm pyrethrin+kerosene soap soup, 10ppm pyrethrin+kerosene soap soup respectively, and establish clear water contrast, leave dual sides at the label branch evenly sprays soup successively, till blade squirts.Before the spray medicine, on each branch, select 3 leaf numberings at random, investigate its insect population quantity.1d, 2d, 3d, 4d, 5d add up the borer population amount alives on these blades respectively behind the spray medicine, calculate insect population go down rate and average control efficiency.Experimental result is seen accompanying drawing 5, in the accompanying drawing 5, the left side is that 5ppm pyrethrin+kerosene soap soup, centre are 20ppm pyrethrin soup for 10ppm pyrethrin+kerosene soap soup, the right in each prescription block diagram, can understand from accompanying drawing 5, be mixed control efficiency that soup handles of 10ppm pyrethrin and kerosene soap all is higher than 20ppm pyrethrin soup and handles, the average control efficiency of dispenser after 5 days still reaches more than 83.6%, and the average control efficiency of 20ppm pyrethrin is 68.9%; 5ppm pyrethrin and the kerosene soap soup that is mixed handles that the average control efficiency of 1d is 90.9% behind the spray medicine.Can obviously improve the control efficiency of control spiral adult whitefly in the field with pyrethrin and the kerosene soap soup that is mixed, and reduce utilization of pesticides concentration, prolong the lasting period of medicament.
Claims (10)
1. the application of pyrethrin aspect preparation control spiral aleyrodid medicament.
2. application according to claim 1 is characterized in that working concentration is that the pyrethrin of 4～20ppm is applied to prevent and treat the spiral aleyrodid.
3. application according to claim 1 is characterized in that working concentration is that the pyrethrin of 4ppm is applied to indoor control spiral aleyrodid.
4. application according to claim 1 is characterized in that working concentration is that the pyrethrin of 20ppm is applied to field control spiral aleyrodid.
5. a pyrethrin emulsion preparation that is used to prevent and treat the spiral aleyrodid is characterized in that according to stereometer, and its raw material comprises 5% pyrethrin, 85% solvent and 10% emulsifier.
6. the described preparation method who is used to prevent and treat the pyrethrin emulsion preparation of spiral aleyrodid of a claim 5, it is characterized in that according to stereometer, get 1 part of 50% pyrethrin crude oil, adding 8 parts of cyclohexanone dissolves pyrethrin crude oil, add 0,206 1 part of farming breast then, shake up and promptly get 5% pyrethrin missible oil.
7. pyrethrin synergistic compound is characterized in that it being the described pyrethrin emulsion preparation that is used to prevent and treat the spiral aleyrodid of claim 5 and kerosene, soap mixture to be mixed obtain; The weight ratio of kerosene, soap and water is 1.4:0.6:3.4 in the described kerosene soap mixture.
8. according to the described pyrethrin synergistic compound of claim 7, it is characterized in that the preparation method of described kerosene soap mixture is: with the soap heating for dissolving that is added to the water, add kerosene then, fully stir promptly.
9. the preparation method of the described pyrethrin synergistic compound of claim 7 is characterized in that according to stereometer, gets 1 part of described kerosene soap mixture, converts 20 parts in water, fully stirs, and gets A solution; Get 1 part of described 5% pyrethrin emulsion preparation, convert 1000～2000 parts in water, fully stir, get B solution; Two kinds of solution equal-volumes of A, B are mixed promptly.
10. the application of the described pyrethrin synergistic compound of claim 7 is characterized in that it being that described pyrethrin synergistic compound is sprayed in trees leave dual sides control spiral aleyrodid.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239890A (en) * | 2011-08-04 | 2011-11-16 | 华南农业大学 | Microcapsule suspension used for preventing and controlling spiraling whitefly and preparation method thereof |
| CN102599199A (en) * | 2012-02-16 | 2012-07-25 | 华南农业大学 | Microcapsule suspending agent as well as preparation method and application thereof |
Citations (1)
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| CN1628519A (en) * | 2003-12-20 | 2005-06-22 | 李鹏飞 | Insecticidal oil emulsion |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1628519A (en) * | 2003-12-20 | 2005-06-22 | 李鹏飞 | Insecticidal oil emulsion |
Non-Patent Citations (4)
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| 《森林病虫害防治方法》编写组: "《森林病虫害防治方法》", 31 March 1995, article "矿物性及植物性杀虫剂", pages: 174-175 * |
| SERGIO LAPRADE, VICTOR H.CERDAS: "Manejo de mosca blanca (Aleurodicus dispersus Russell, Homoptera: Aleyrodidae) en banano (Musa AAA) utilizando insecticidas y aceite", 《CORBANA》, vol. 22, no. 48, 31 December 1997 (1997-12-31), pages 89 - 94 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239890A (en) * | 2011-08-04 | 2011-11-16 | 华南农业大学 | Microcapsule suspension used for preventing and controlling spiraling whitefly and preparation method thereof |
| CN102239890B (en) * | 2011-08-04 | 2013-08-07 | 华南农业大学 | Microcapsule suspension used for preventing and controlling spiraling whitefly and preparation method thereof |
| CN102599199A (en) * | 2012-02-16 | 2012-07-25 | 华南农业大学 | Microcapsule suspending agent as well as preparation method and application thereof |
| CN102599199B (en) * | 2012-02-16 | 2014-07-09 | 华南农业大学 | Microcapsule suspending agent as well as preparation method and application thereof |
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Effective date of registration: 20160407 Address after: Moon Road, Science City high tech Industrial Development Zone of Guangzhou City, Guangdong province 510530 No. 80 science and technology innovation base D 607-612 unit Patentee after: GUANGZHOU RUIFENG BIOTECHNOLOGY CO., LTD. Address before: 510642 Tianhe District, Guangdong, No. five road, No. 483, Patentee before: South China Agricultural University |
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Inventor after: Li Shenlei Inventor after: Zhang Maoxin Inventor after: Ling Bing Inventor after: Wang Jianming Inventor after: Jin Xin Inventor after: Lin Xiaojun Inventor after: Chen Fang Inventor after: Lu Yongyue Inventor before: Zhang Maoxin Inventor before: Ling Bing Inventor before: Wang Jianming |
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