CN114304148B - Tarsonia crassipes attractant, lure and preparation method thereof - Google Patents
Tarsonia crassipes attractant, lure and preparation method thereof Download PDFInfo
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- CN114304148B CN114304148B CN202210008063.6A CN202210008063A CN114304148B CN 114304148 B CN114304148 B CN 114304148B CN 202210008063 A CN202210008063 A CN 202210008063A CN 114304148 B CN114304148 B CN 114304148B
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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
The invention relates to the technical field of insect attraction, and provides a tar-containing crassula argentea attractant, a lure and a preparation method thereof. The attractant provided by the invention comprises hexanal, cis-3-hexenal and cis-3-hexenol; the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is 10-15:15-20:65-75. The attractant is specially prepared for the olfactory system of the Apocynum venetum, has the characteristics of specific target, good attracting effect and high efficiency, is prepared into an attracting core, and is used for monitoring and controlling the Apocynum venetum adults, and has the characteristics of environmental friendliness, investment saving and simplicity in operation.
Description
Technical Field
The invention relates to the technical field of insect attraction, in particular to a tar-containing crassula argentea attractant and a lure and a preparation method thereof.
Background
The peaked licorice leaf beetle (Diorhdba tarsalis wise.) only fed with licorice leaves, and the adults and larvae fed with licorice leaves, can feed all Tian Gancao mesophylls in 3-5 days, and only net stems and veins remain, which causes great yield loss of licorice every year. At present, the prevention and control of the Tarsonian crassipes turcz still depends on chemical pesticides, so that the problems of 3R such as pesticide residue of medicinal materials and excessive toxic heavy metal content seriously affect the competitiveness and sustainable development of the licorice planting industry, and the development of environment-friendly green prevention and control measures is imperative.
The technique of attraction and control is one of the possible ways of green prevention and control of the Amaranthus tscherianus, and phytophagous insects eat by distinguishing the special odors of secondary metabolites contained in host plants, which are signal molecules for the insects to find the host plants. The special odors are fully utilized to attract the Tarsonia crassipes so as to play a role in preventing and controlling, so that the use of pesticides can be reduced, and the drug resistance of pests can be reduced. However, there is currently no effective tarsonella tsumadai attractant.
Disclosure of Invention
In view of this, the present invention provides a tar-containing crassula argentea attractant, a lure and a preparation method thereof. The attractant provided by the invention has good attracting effect on the tarsonemus ohba, high attracting efficiency and environment friendliness.
In order to achieve the above object, the present invention provides the following technical solutions:
a tar-containing Pityrospermum Parkii attractant comprises hexanal, cis-3-hexenal and cis-3-hexenol; the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is 10-15:15-20:65-75.
Preferably, the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is 10.80:18.78:70.42.
Preferably, the device comprises a carrier and an attractant solution adsorbed on the carrier; the attractant is the attractant according to the scheme.
Preferably, the solvent of the attractant solution is dichloromethane or n-hexane.
Preferably, the concentration of the attractant solution is 80-120 mug/mu L.
Preferably, the carrier is a ring-shaped rubber head.
Preferably, the inner diameter of the annular rubber head is 1-1.5 cm, and the outer diameter is 2-2.5 cm.
Preferably, 2000-2500 mug of attractant is loaded on the single lure.
The invention also provides a preparation method of the lure core, which comprises the following steps:
dissolving an attractant in a solvent to obtain an attractant solution, and adsorbing the attractant solution by using a carrier to obtain the Tarsonia dubia She Jiayou core.
The invention provides a tar-containing crassula argentea attractant, which comprises hexanal, cis-3-hexenal and cis-3-hexenol; the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is 10-15:15-20:65-75. The attractant is specially configured for the olfactory system of the America plague leaf beetle, and has the characteristics of specific target, good attracting effect and high efficiency.
The invention also provides a Tarsonius tarsonensis She Jiayou core, which comprises a carrier and an attractant solution adsorbed on the carrier; the attractant is the attractant according to the scheme. The lure provided by the invention has good lure effect and high efficiency, and the lure provided by the invention is used for monitoring and controlling the adult of the leaf beetles of the Apriona platanifolia, and compared with the existing control measures mainly based on chemical pesticides, the lure has the characteristics of environmental friendliness, investment saving and simple operation.
Drawings
FIG. 1 is a GC-EAD reaction of Tarsonia crassipes on host volatiles;
FIG. 2 is a total ion flow chart of the components of the volatile extract of Glycyrrhiza uralensis;
FIG. 3 shows EAG response of Tarsonii Selaginella on hexanal at various concentrations;
FIG. 4 shows EAG response of Tarsonii Setaria to different concentrations of cis-3-hexenal;
FIG. 5 shows EAG response of Tarsonii Setaria to different concentrations of cis-3-hexenol;
FIG. 6 shows EAG reaction of Tarsonii Setaria on 1-octen-3-ol at various concentrations;
FIG. 7 shows EAG response of Tarsonia crassipes to various concentrations of trans-2-hexenal;
FIG. 8 shows EAG reaction of Tarsonia crassipes on hexanol at various concentrations;
FIG. 9 shows EAG reaction of Tarsonii Setaria on various concentrations of (Z) -hexenyl 3-hexanoate;
FIG. 10 is a Y olfactometer behavior measurement of male insect-susceptible compounds;
FIG. 11 is a Y olfactometer behavior measurement of female insect-sensitive compounds;
FIG. 12 shows the concentration of Tarsonia crassipes host-localized odor signals in licorice extracts after 24h and 72h of non-feeding and feeding;
FIG. 13 is a graph of the killing effect of A, B, C three attractants on adult Apriona plague.
Detailed Description
The invention provides a tar-containing crassula argentea attractant, which comprises hexanal, cis-3-hexenal and cis-3-hexenol; the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is 10-15:15-20:65-75.
In the present invention, the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is preferably 10 to 14:16 to 19:68 to 72, more preferably 10.80:18.78:70.42.
Hexanal with molecular formula C 6 H 12 O, CAS number is 66-25-1, is colorless transparent liquid, takes on the fragrance of raw grease, grass gas and apples, has a melting point of-56 ℃, a boiling point of 131 ℃, a flash point of 90 DEG F, is mixed and dissolved in ethanol, propylene glycol and most of fixed oil, is indissolvable in water, has a storage condition of 2-8 ℃, and has a structural formula shown in a formula I:
cis-3-hexenal of formula C 6 H 10 O, CAS number 6789-80-6, colorless liquid, strong green fragrance, grass fragrance and apple fragrance, melting point-78 ℃, boiling point 20 ℃, flash point 140 DEG F, slightly water-soluble, ethanol-soluble and oil-soluble, storage condition 2-8 ℃, structural formula as shown in formula II:
cis-3-hexenol with molecular formula of C 6 H 12 O, CAS number 928-96-1, colorless oily liquid, with strong grass fragrance and new tea smell, melting point 22.55deg.C, boiling point 156 deg.C, flash point 112 deg.C, dissolving in ethanol, propylene glycol and most of non-volatile oil, very slightly dissolving in water, storage condition-20deg.C, structural formula shown in formula III:
the invention analyzes the main volatile matters of the tarsonetia polymorpha by technical methods such as electrophysiology, insect behaviours and the like, identifies 3 main volatile matters (namely hexanal, cis-3-hexenal and cis-3-hexenol) which have activity on the tarsonetia polymorpha, develops the tarsonetia polymorpha attractant based on the main volatile matters, and has the characteristics of specific targets, good attracting effect and high efficiency.
The invention also provides a Tarsonius tarsonensis She Jiayou core, which comprises a carrier and an attractant solution adsorbed on the carrier; the attractant is the attractant according to the scheme. In the present invention, the solvent of the attractant solution is preferably methylene chloride or n-hexane; the concentration of the attractant solution is preferably 80 to 120. Mu.g/. Mu.L, more preferably 100. Mu.g/. Mu.L; the carrier is preferably a circular rubber head; the inner diameter of the annular rubber head is preferably 1-1.5 cm, and the outer diameter is preferably 2-2.5 cm. The invention has no special requirement on the source of the annular rubber head, and the annular rubber head sold in the market can be adopted.
In the present invention, the lure is preferably loaded with 2000 to 2500. Mu.g of the attractant on the single lure.
The invention also provides a preparation method of the lure core, which comprises the following steps:
dissolving an attractant in a solvent to obtain an attractant solution, and adsorbing the attractant solution by using a carrier to obtain the Tarsonia dubia She Jiayou core.
The preparation method of the attractant solution has no special requirement, and hexanal, cis-3-hexenal and cis-3-hexenol are dissolved in a solvent according to the proportion described in the scheme.
The method has no special requirement on the adsorption method, and the carrier can naturally adsorb the attractant solution. In the embodiment of the invention, the blank rubber heads 10 are preferably assembled into a conical flask, 250 mu L of the attractant solution is dripped into the conical flask, the rubber heads are stirred by a glass rod while dripping, the attractant solution is uniformly adsorbed by the rubber heads, after the adsorption is finished, the obtained lures 10 are hermetically packaged in a bag by using an aluminum film, and the lures are stored at the temperature of 4 ℃.
The technical solutions of the present invention will be clearly and completely described in the following in connection with the embodiments of the present invention.
Example 1
(1) GC-EAD analysis of Tarsonian Americana host volatiles
The volatile matter of the aerial parts of the main plant Ula Licorice of the Apocynum venetum is extracted by adopting a headspace absorption method, and the feeler GC-EAD reaction of the Apocynum venetum is detected, and the result is shown in figure 1, wherein the feeler has electrophysiological reaction on 9 separated components, respectively, and can appear at 7.17min, 8.20min, 9.97min, 12.15min, 13.20min, 14.00min, 14.35min, 15.53min and 15.98min and can repeatedly appear on a plurality of feelers according to the figure 1.
(2) GC-MS identification of tarsal licorice volatile matter
GC-MS analysis of volatile extracts of aerial parts of host Glycyrrhiza uralensis, as shown in FIG. 2, showed that 9 separate components were detected in sequence at 6.73min, 8.44min, 10.95min, 14.91min, 16.74min, 17.81min, 18.57min, 20.55min, and 21.39min, respectively, and that 9 components were Hexanal (Hexanal, C) respectively, as retrieved by Nist27 and Nist147 databases 6 H 12 O), cis-3-hexenal (Z-3-hexenal, C 6 H 10 O), trans-2-hexenal (E-2-hexenal, C 6 H 10 O), cis-3-hexenylAcetate (Z-3-hexenyl acetate, C 8 H 14 O 2 ) Hexanol (Hexanol, C) 6 H 14 O), cis-3-hexenol (Z-3-hexenol, C 6 H 12 O), nonanal (Nonal, C 9 H 18 O), 1-octen-3-ol (1-ocen-3-ol, C 8 H 16 O), (Z) -hexanoic acid-3-hexenyl ester (Z-3-hexenyl butyl ester, C 12 H 22 O 2 ). And comparing the retention time of the corresponding standard substance with the mass spectrogram, and verifying that the substance identification is correct.
(3) EAG verification of electrophysiological active component with antenna
The above 9 compounds were diluted to concentration gradients of 0.01. Mu.g/. Mu.L, 0.1. Mu.g/. Mu.L, 1. Mu.g/. Mu.L, and 10. Mu.g/. Mu.L (the solvent was methylene chloride), and the antennal EAG reactions were measured at the different concentration gradients, and the results were shown in FIGS. 3 to 9, respectively. According to fig. 3-9, 6 compounds (hexanol, trans-2-hexenal, (Z) -hexanoic acid-3-hexenal, cis-3-hexenol, hexanal, cis-3-hexenal) that are susceptible to andropause, 7 compounds (1-octen-3-ol, hexanol, trans-2-hexenal, (Z) -hexanoic acid-3-hexenal, cis-3-hexenol, hexanal, cis-3-hexenal) that are susceptible to estra can be obtained; cis-3-hexenyl acetate and nonanal do not change much in the antenna EAG reaction at different concentrations and are not shown in the figure.
(4) Determination of the behaviour of electrophysiological active components with antenna
The results of the Y olfactometer behavior measurement of the host volatile components (6 males and 7 females) obtained by electrophysiological verification are shown in figures 10-11, and it can be seen from figures 10-11 that cis-3-hexenal, hexanal and cis-3-hexenol are odor signal substances of the Tarsonius tarsonemus ohba localization hosts.
(5) Host positioning scent signal release law
GC-MS quantitative analysis is carried out on the licorice volatile extract which is not taken, 50 firefly leaf beetles are placed on 1 plant of licorice, gauze is covered, the firefly leaf beetles take food for 24 hours and 72 hours respectively, then the licorice volatile extract is removed, and the volatile extract of the aerial parts of the licorice which are taken food for 24 hours and 72 hours is extracted by adopting a headspace absorption method, so that the GC-MS quantitative analysis is carried out.
The results are shown in FIG. 12, and the results in FIG. 12 indicate that cis-3-hexenal and cis-3-hexenol are the constituent components of Tarsonian beetle localized host Glycyrrhrizae radix, hexanal is the odor signal induced by Glycyrrhrizae radix after it is harmful to eat. Hexanal in the volatiles of the healthy host liquorice: cis-3-hexenal: the mass of cis-3-hexenol is 0:13.86:86.14, and hexanal in the volatile is after 72h of feeding: cis-3-hexenal: the mass ratio of cis-3-hexenol is 10.80:18.78:70.42.
(6) Evaluation of multicomponent field trapping effect
According to the natural release proportion of the host positioning active substances of the Tarsonius, 3 attractants are designed, A is the volatilization amount proportion of healthy plants (namely, the mass ratio of hexanal to cis-3-hexenal to cis-3-hexenol is 0:13.86:86.14), B is the release proportion after the Tarsonius is harmful (namely, the mass ratio of hexanal to cis-3-hexenal to cis-3-hexenol is 10.80:18.78:70.42), C is the doubling proportion of hexanal (namely, the mass ratio of hexanal to cis-3-hexenal to cis-3-hexenol is 21.60:16.51:61.89), the three attractants are respectively dissolved in dichloromethane, the concentration is 100 mug/mug, a blank rubber head is used for adsorbing attractant solution, the loading amount of the attractant in a single rubber head is 2500 mug, three attractant cores are obtained, the killing effect of the three attractant cores on the Tarsonius is evaluated in the field by using the Tarsonius trappers in the field, and the trapping effect of the three attractant cores on the Tarsonius is 7d, and the trap components and the solvent are used as the control component.
The results are shown in FIG. 13. The results in FIG. 13 show that the trapping effect of the B-attractant (cis-3-hexenal: cis-3-hexenol mass ratio of 10.80:18.78:70.42) is best.
Example 2
According to the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol being 10.80:18.78:70.42, preparing an attractant, dissolving the attractant in methylene dichloride to obtain the attractant with the concentration of 100 mug/mug, taking out blank rubber head cores from packages, assembling 10 parts into 100ml conical bottles, dripping 250 mug of the attractant into each conical bottle, stirring with a glass rod while dripping to make absorption uniform, preparing the cores with 2500ug of active ingredients, sealing and packaging with 10 aluminium films/bag, and storing at 4 ℃.
Example 3
Other conditions were consistent with example 2, changing the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol to 10:18:72 only.
Example 4
Other conditions were consistent with example 2, changing the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol to 15:20:65 only.
Example 5
In the middle 7 th year of 2021, using a core-attracting agent pointed by a patent to attract Tarsonia crassipes in a forest farm of the national academy of sciences of Ningxia and forestry to attract Tarsonia crassipes, using commercial tobacco nail traps as traps, placing 1 core-attracting agent prepared in example 2 in each trap, setting 30 trapping points, and investigating trapping results after trapping for 7d, wherein the results show that: the average captured adults within 7 days of each trap was 19.67 heads.
In addition, the number of other insects trapped is counted, and the result shows that the other insects trapped are non-natural enemy flies, the ratio of the trapped tarsonemus ohba to the other insects is 43:7, which proves that the trapping core has stronger specificity.
The same experiment was performed using the lures prepared in examples 3 to 4, and the results showed that 12.33 heads of adults were captured per trap on average using the lure prepared in example 3, and 15.27 heads of adults were captured per trap on average using the lure prepared in example 4.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (9)
1. The tar-containing crassula argentea attractant is characterized by comprising hexanal, cis-3-hexenal and cis-3-hexenol; the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is 10-15:15-20:65-75.
2. An attractant according to claim 1, wherein the mass ratio of hexanal, cis-3-hexenal and cis-3-hexenol is 10.80:18.78:70.42.
3. A core of Tarsonia crassipes She Jiayou comprising a carrier and an attractant solution adsorbed on said carrier; the attractant is the attractant as claimed in claim 1 or 2.
4. A lure according to claim 3, wherein the solvent for the attractant solution is methylene chloride.
5. A lure according to claim 3 wherein the concentration of the attractant in the attractant solution is 80-120 μg/μl.
6. A lure according to claim 3, wherein the carrier is a circular rubber head.
7. The lure according to claim 6, wherein the annular rubber head has an inner diameter of 1-1.5 cm and an outer diameter of 2-2.5 cm.
8. The lure according to claim 6, wherein 2000-2500 μg of the lure is loaded on a single lure.
9. The method for preparing the lure according to any one of claims 3 to 8, comprising the following steps:
dissolving an attractant in a solvent to obtain an attractant solution, and adsorbing the attractant solution by using a carrier to obtain the Tarsonia dubia She Jiayou core.
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| US6413508B1 (en) * | 1988-07-05 | 2002-07-02 | The United States Of America As Represented By The Secretary Of Agriculture | Green leaf volatiles as synergists for insect pheromones |
| DE102004004900A1 (en) * | 2004-01-30 | 2005-08-18 | Freie Universität Berlin | Composition and its use as an attractant for garden gullet beetles |
| CN104094928A (en) * | 2014-07-31 | 2014-10-15 | 福建省农业科学院植物保护研究所 | Mango deporaus marginatus pascoe attractant and preparation method thereof |
| CN104322531A (en) * | 2014-10-22 | 2015-02-04 | 深圳百乐宝生物农业科技有限公司 | Plutella xylostella attractant |
| CN105191935A (en) * | 2015-10-29 | 2015-12-30 | 浙江农林大学 | Adult citus longhorned beetle attractant |
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| US6413508B1 (en) * | 1988-07-05 | 2002-07-02 | The United States Of America As Represented By The Secretary Of Agriculture | Green leaf volatiles as synergists for insect pheromones |
| DE102004004900A1 (en) * | 2004-01-30 | 2005-08-18 | Freie Universität Berlin | Composition and its use as an attractant for garden gullet beetles |
| CN104094928A (en) * | 2014-07-31 | 2014-10-15 | 福建省农业科学院植物保护研究所 | Mango deporaus marginatus pascoe attractant and preparation method thereof |
| CN104322531A (en) * | 2014-10-22 | 2015-02-04 | 深圳百乐宝生物农业科技有限公司 | Plutella xylostella attractant |
| CN105191935A (en) * | 2015-10-29 | 2015-12-30 | 浙江农林大学 | Adult citus longhorned beetle attractant |
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