CN107646841B - Sex pheromone for preventing and treating silver budworm - Google Patents
Sex pheromone for preventing and treating silver budworm Download PDFInfo
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- CN107646841B CN107646841B CN201710688866.XA CN201710688866A CN107646841B CN 107646841 B CN107646841 B CN 107646841B CN 201710688866 A CN201710688866 A CN 201710688866A CN 107646841 B CN107646841 B CN 107646841B
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- budworm
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/02—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/02—Stationary means for catching or killing insects with devices or substances, e.g. food, pheronones attracting the insects
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- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
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- Insects & Arthropods (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a sex pheromone for preventing and controlling silver budworm. The silver budworm pheromone comprises one or more of cis-11-hexadecene acetate, cis-9, trans-12-tetradecene acetate and hexadecene acetate, wherein the mass ratio of the silver budworm pheromone is 1.0-3.6: 0.75-2: 0.5-1.2. The method has the advantages of small using amount, environmental friendliness, accurate application in insect condition prediction, mass trapping and mating interference, obvious improvement on the effect of comprehensively treating the silver budworm moth and great significance in the comprehensive treatment of the silver budworm moth.
Description
Technical Field
The invention belongs to the technical field of insect sex pheromone preparation, and particularly relates to a sex pheromone for preventing and controlling silverworm armyworm.
Background
The silver budworm Macdunnoughia crassigna Warren belongs to Lepidoptera and Noctuidae, and is a leaf-eating pest. Mainly comprises soybean and cruciferous vegetables such as Chinese cabbage, lettuce, green pepper, eggplant, kidney bean, carrot, chrysanthemum and other plants, and is one of the important agricultural pests in China. At present, chemical pesticides are mainly used for preventing and controlling the silver budworms, but because the chemical pesticides bring huge pollution to human beings and the environment, and because the excessive use of the chemical pesticides can easily cause the resistance of the silver budworms, the human beings gradually change the chemical prevention into the biological prevention and control and explore a sustainable control mode. Insect sex pheromones come from insect bodies, do not harm human beings and the environment, and are not easy to cause drug resistance of pests, so that the insect sex pheromones are gradually applied to fields to trap the pests. According to the principle that sex pheromone released by female insects has strong attraction capacity on the same kind of male insects, the sex pheromone components and the proportion of female silver budworm armyworm sex pheromone can be determined and accurately applied to insect condition prediction, mating interference and mass trapping, and the ideal effect of comprehensively treating the silver budworm armyworm is achieved.
Disclosure of Invention
In view of the above, the present invention provides a sex pheromone for preventing and controlling silver budworm moth, so as to improve the effect of comprehensively controlling the silver budworm moth.
Based on the aim, the silver budworm sex pheromone provided by the invention is feasible, and consists of cis-11-hexadecene acetate (Z11-16: Ac), cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac) and hexadecene acetate (16: Ac) in a mass ratio of 1.0-3.6: 0.75-2: 0.5-1.2;
preferably, the silversmith noctuid pheromone consists of cis-11-hexadecene acetate (Z11-16: Ac), cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac) and cis-11-hexadecene acetate (16: Ac) in a mass ratio of 1.8-2.7: 1-1.8: 0.8-1;
most preferably, the Yingdingmu pheromone consists of cis-11-hexadecene acetate (Z11-16: Ac), cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac) and cis-11-hexadecene acetate (16: Ac) in a mass ratio of 2.5:1.6: 0.9;
a preparation method of a sex pheromone lure core of silver budworm moths comprises the steps of dropwise adding a dichloromethane solution containing the sex pheromone of the silver budworm moths on the lure core, dropwise adding n-hexane on the lure core after the dichloromethane solution containing the sex pheromone of the silver budworm moths is volatilized, and preparing the lure core containing the sex pheromone lure agent of the silver budworm moths after the n-hexane is volatilized. Packaging the obtained lure core in aluminum foil, sealing, and refrigerating at-20 deg.C.
When the application of the sex attractant core for the silver budworm moth in trapping the silver budworm moth is used, traps containing the sex attractant core for the silver budworm moth with different heights are hung in an area where the silver budworm moth occurs or is likely to occur, and the sex attractant core is used for monitoring the pest situation of the silver budworm moth, trapping a large number of silver budworm moths and disturbing mating. The trap is a barrel-shaped trap.
Compared with the prior art, the invention has the following beneficial effects: the sex pheromone of the silver budworm provided by the invention is simple to prepare, and the raw materials are easy to obtain; has strong trapping ability, long lasting period and prevention and control effect lasting for more than 30 days; the specificity is strong, and the resistance of the silver budworm can not be generated; is harmless to human and livestock and environment-friendly; strong stress resistance and convenient use. The method can be accurately applied to insect condition prediction, mating interference and mass trapping, and has important significance for comprehensively treating the silver budworm.
Detailed Description
The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments.
EXAMPLE 1 preparation of sex pheromone of silver budworm
The method comprises the steps of dropwise adding dichloromethane solution containing silver spodoptera exigua pheromone onto a lure core, dropwise adding n-hexane onto the lure core after the dichloromethane solution containing the silver spodoptera exigua pheromone is volatilized, preparing the lure core containing the silver spodoptera attractant after the n-hexane is volatilized, placing the lure core into a barrel-shaped trap, and then placing the trap into a land where the silver spodoptera exigua occurs seriously. In order to ensure the release effect, 50-1000 mu g of sex pheromone of the silverworm moths is placed in each 1mL of rubber lure core, the average distance between traps is 10m, and the height of the traps is respectively set to be 30cm, 90cm, 150cm and 210cm away from the ground. To further illustrate the feasibility of this example, 10 specific formulations are given in table 1:
TABLE 1
Selecting a land plot with more serious emergence of the silverworm moths, wherein the area of the land plot is more than 10 mu, each formula is provided with lure cores with the height of 30cm, 90cm, 150cm and 210cm from the ground, 5 treatments are repeatedly set for each formula, the barrel-type traps containing the silverworm moths pheromone are uniformly and randomly placed, and simultaneously, 5 light traps, 5 blank barrel-type traps with the height of 30cm, 90cm, 150cm and 210cm from the ground and 5 barrel-type traps containing live female silverworm moths which are not yet mated after emerging for 3 days and have the height of three ends of 30cm, 90cm, 150cm and 210cm from the ground are randomly placed. The average spacing between traps was 10 m. And investigating the number of the trapped silver budworms every three days after the placement, replacing emerging live female silver budworms, randomly replacing trapping positions, and continuously investigating for 30 days. The trapping effect is shown in table 2:
TABLE 2
The result shows that the sex pheromone of the silverworm moth has better trapping effect on the silverworm moth. As can be seen from the significant comparison, the difference between the trapping amounts of the treatment containing cis-11-hexadecene acetate (Z11-16: Ac), cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac) and hexadecene acetate (16: Ac) and the control group (P < 0.05) is significant, which indicates that the cis-11-hexadecene acetate (Z11-16: Ac), cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac), hexadecene acetate (16: Ac) have strong trapping capability on the trapping activity of the silversmith noctuid pheromone, and the formula 7-3 (cis-11-hexadecene acetate 250. mu.g, cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac) 160. mu.g, the formula B and the formula C, 90 mu g of hexadecene acetate) is the most remarkably different from the silversmith pheromone, which indicates that the trapping effect is the best.
The inventors repeated the above trapping experiments using one or two of cis-11-hexadecene acetate (Z11-16: Ac), cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac), and hexadecene acetate (16: Ac) as the trapping agent, respectively, and none of the trapping effects of formulation 7 was good, and the inventors performed different treatments at the height of the lure, and found that the trapping effect was the best at a height of 150cm of the lure. Therefore, the sex pheromone of the silver budworm provided by the invention can be accurately applied to insect situation prediction, mass trapping and mating interference of the silver budworm, and has important significance for comprehensively treating the silver budworm.
The inventors repeated the above trapping experiments using cis-11-hexadecene acetate (Z11-16: Ac), cis-9, trans-12-tetradecene acetate (Z9, E12-14: Ac), hexadecene acetate (16: Ac) having a structure similar to that of trans-11-hexadecene acetate, cis-9, cis-12-tetradecene acetate, octadecene acetate, respectively, as a trapping agent, and found that there was no trapping effect, demonstrating that the above pheromones have high specificity and cannot be replaced by structural analogs thereof.
The above disclosure is only one specific embodiment of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (3)
1. The sex pheromone for preventing and treating the silver budworm is characterized by comprising cis-11-hexadecene acetate, cis-9, trans-12-tetradecene acetate and hexadecene acetate in a mass ratio of 1.0-3.6: 0.75-2: 0.5-1.2.
2. The method for preparing the sex pheromone lure of the silver budworm moth as claimed in claim 1, is characterized in that dichloromethane solution containing the sex pheromone of the silver budworm moth is dripped on the lure, n-hexane is dripped on the lure after the dichloromethane solution containing the sex pheromone of the silver budworm moth is volatilized, the lure containing the sex pheromone of the silver budworm moth is prepared after the n-hexane is volatilized, the prepared lure is filled in an aluminum foil for sealing, and the lure is refrigerated at the temperature of-20 ℃.
3. Use of a sex pheromone according to claim 1 for the biological control of agromycosis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710688866.XA CN107646841B (en) | 2017-08-13 | 2017-08-13 | Sex pheromone for preventing and treating silver budworm |
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| CN107646841B true CN107646841B (en) | 2020-02-18 |
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| CN109122686A (en) * | 2018-08-25 | 2019-01-04 | 中国农业科学院植物保护研究所 | A kind of lettuce winter noctuid traps composition and its application |
| CN108925558A (en) * | 2018-08-25 | 2018-12-04 | 中国农业科学院植物保护研究所 | A kind of lettuce winter noctuid sex attractant and its preparation method and application |
| CN109362724B (en) * | 2018-12-06 | 2019-12-24 | 黑龙江省森林保护研究所 | Sex pheromone for preventing and treating hazelnut image and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104996422A (en) * | 2014-04-23 | 2015-10-28 | 南京农业大学 | Othaga achatina butler sex attractant composition and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104996422A (en) * | 2014-04-23 | 2015-10-28 | 南京农业大学 | Othaga achatina butler sex attractant composition and application thereof |
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