CN115474601B - Method for preventing spodoptera frugiperda by combining repellent compound and sex pheromone trapper - Google Patents
Method for preventing spodoptera frugiperda by combining repellent compound and sex pheromone trapper Download PDFInfo
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- CN115474601B CN115474601B CN202211085983.4A CN202211085983A CN115474601B CN 115474601 B CN115474601 B CN 115474601B CN 202211085983 A CN202211085983 A CN 202211085983A CN 115474601 B CN115474601 B CN 115474601B
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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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- 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
- A01M1/10—Catching insects by using Traps
- A01M1/106—Catching insects by using Traps for flying insects
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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
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P17/00—Pest repellants
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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
- A01M2200/00—Kind of animal
- A01M2200/01—Insects
- A01M2200/012—Flying insects
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Abstract
The invention discloses a method for preventing spodoptera frugiperda by utilizing a repellent compound and a sex pheromone trap in combination. Suspending the slow release carrier at a position 10-20cm higher than the target crops, and suspending the spodoptera frugiperda sex pheromone trap at a position 5-20m away from the slow release carrier; the slow release carrier is prepared by dissolving a repellent compound in n-hexane, and adding an antioxidant 2, 6-di-tert-butyl-p-cresol and an ultraviolet light adsorbent 2-hydroxy-4-methoxybenzophenone respectively. The invention combines the cerclage bug warning pheromone caproic acid trans-2-hexenyl ester and green leaf smell substances according to an optimal proportion to form a slow release carrier for improving the effect of preventing and controlling spodoptera frugiperda by the spodoptera frugiperda sex pheromone. The slow release carrier of the repellent and the spodoptera frugiperda sex pheromone trap are simultaneously implemented in the high-rise season of the spodoptera frugiperda so as to achieve the purposes of controlling the spodoptera frugiperda, protecting natural enemies and maintaining biodiversity.
Description
Technical Field
The invention belongs to the technical field of agricultural pest control, and particularly relates to a method for controlling spodoptera frugiperda by utilizing a repellent compound and sex pheromone trapping combination.
Background
Spodoptera frugiperda belongs to the genus spodoptera of the family spodoptera of the order lepidoptera, commonly known as fall armyworm, native to tropical and subtropical areas of america. The spodoptera frugiperda of 1 month in 2019 invades the Yunnan province of China from Burma and spreads on a large scale, and the spodoptera frugiperda has the characteristics of long-distance migration, wide host range, strong reproductive capacity and the like, and causes serious economic loss on grain crops such as corn, wheat, sugarcane, sorghum and the like.
At present, chemical control is a main method for controlling spodoptera frugiperda, but the chemical control has the problems of environmental pollution, drug resistance of pests and the like.
Disclosure of Invention
A first object of the present invention is to provide the use of trans-2-hexenyl hexanoate in the repellency of spodoptera frugiperda.
The combined prevention and control method of the repellent and sex pheromone is an effective prevention and control means, and the invention provides an alarm pheromone and repellent for other pests, and combines the prevention and control means of the spodoptera frugiperda sex pheromone trap, thereby having important guiding significance for green and efficient prevention and control of spodoptera frugiperda.
Preferably, the application of the caproic acid trans-2-hexenyl ester combined spodoptera frugiperda sex pheromone in preventing and controlling spodoptera frugiperda.
Preferably, the application of the repellent compound containing the caproic acid trans-2-hexenyl ester in the repellent of spodoptera frugiperda is provided, wherein the repellent compound is prepared from caproic acid trans-2-hexenyl ester, ethyl acetate and trans-2-hexenal according to the mass ratio of 5-7:2-4: 1-3.
Preferably, the repellent compound is prepared from caproic acid trans-2-hexenyl ester, ethyl acetate and trans-2-hexenal according to a mass ratio of 6-7:3-4: 2-3.
A second object of the present invention is to provide a method for controlling spodoptera frugiperda using a repellent composition in combination with a spodoptera frugiperda sex pheromone trap, which is to suspend a slow release carrier 10-20cm above a target crop and suspend a spodoptera frugiperda sex pheromone trap 5-20m from the slow release carrier;
the slow release carrier is prepared by dissolving a repellent compound in n-hexane, and adding an antioxidant 2, 6-di-tert-butyl-p-cresol and an ultraviolet light adsorbent 2-hydroxy-4-methoxybenzophenone respectively;
the repellent compound is prepared from caproic acid trans-2-hexenyl ester, ethyl acetate and trans-2-hexenal according to a mass ratio of 5-7:2-4: 1-3.
Preferably, the repellent compound is prepared from caproic acid trans-2-hexenyl ester, ethyl acetate and trans-2-hexenal according to a mass ratio of 6-7:3-4: 2-3.
Another object of the invention is to provide the use of the fagus lucorum warning pheromone trans-2-hexenyl caproate for improving the effect of spodoptera frugiperda sex pheromone traps. The invention combines the cerclage bug warning pheromone caproic acid trans-2-hexenyl ester and green leaf smell substances according to an optimal proportion to form a slow release carrier for improving the effect of preventing and controlling spodoptera frugiperda by the spodoptera frugiperda sex pheromone. The slow release carrier of the repellent and the spodoptera frugiperda sex pheromone trap are simultaneously implemented in the high-rise season of the spodoptera frugiperda so as to achieve the purposes of controlling the spodoptera frugiperda, protecting natural enemies and maintaining biodiversity.
The method for preventing and controlling spodoptera frugiperda by utilizing the combination of the repellent compound and the spodoptera frugiperda sex pheromone uses the spikenard warning pheromone and the plant green leaf smell substances as basic components, and the slow release carrier is prepared by different proportions, so that the released caproic acid trans-2-hexenyl ester can directly repel spodoptera frugiperda, the trapping efficiency of the spodoptera frugiperda sex pheromone trap is improved, and the added plant green leaf volatile matter can properly regulate the stability of the release of the caproic acid trans-2-hexenyl ester and increase the release duration time of the device so as to achieve the purposes of repelling and trapping spodoptera frugiperda. The control experiment result proves that under the condition of using the spodoptera frugiperda sex pheromone trap control effect, the control effect can be improved compared with the single application of the spodoptera frugiperda sex pheromone trap control effect, and the control experiment result shows that under the condition that the repellent ratio is 6:3:2 and 7:4:3, the number of spodoptera frugiperda insect population at 5 meters can be obviously reduced, the number of insect population induced at 5 meters is 3+/-1 head and 1.3+/-0.58 head respectively, the number of insect population induced at the control group (without the slow-release carrier for repelling is at the same position) is 36+/-1 head, the number of spodoptera frugiperda insect population induced at 20 meters is 255.3 +/-19.66 head and 220.7+/-12.86 head, and the number of insect population induced at the same position without the slow-release carrier for repelling is 30+/-1.5 head. The invention can reduce the usage amount of chemical pesticides, reduce environmental pollution, ensure that spodoptera frugiperda is not easy to generate drug resistance, protect biodiversity and natural enemy resources, and develop new means of pheromone in the field of pest control.
Drawings
FIG. 1 is a graph of the electrophysiological response of Spodoptera frugiperda adults to trans-2-hexenyl hexanoate;
FIG. 2A is the behavioral response of Spodoptera frugiperda adults to trans-2-hexenyl hexanoate and B is the behavioral response of Spodoptera frugiperda adults to trans-2-hexenyl hexanoate;
FIG. 3 is the results of the field test of example 3;
FIG. 4 is the results of the field test of example 4;
fig. 5 is the result of the field experiment of example 5.
Detailed Description
The following detailed description of specific embodiments of the invention is provided in connection with specific examples which are intended to be illustrative, but not limiting, of the scope of the invention.
Example 1 laboratory test
Electrophysiological responses of spodoptera frugiperda male and female adults to different concentrations of trans-2-hexenyl hexanoate were determined using EAG (Syntech, germany).
The specific operation steps are as follows: the caproic acid trans-2-hexenyl ester is prepared into 1 mug/mug, 10 mug/mug and 100 mug/mug of 3 concentration gradient samples to be tested by using normal hexane, 10 mug of the samples to be tested or normal hexane is dripped on filter paper each time by taking normal hexane as a control, and then the filter paper is put into a sample tube. The antenna of the spodoptera frugiperda adult was cut from the base and the antenna ends were cut a small portion (about 1 mm) and the antenna ends were each glued to the fork electrodes using conductive glue. The continuous air flow at the antenna was adjusted to 5mL/s. When in testing, the air continuous airflow is switched into the stimulating airflow of the sample to be tested, namely, the air continuous airflow is suspended, the stimulating airflow of the switched sample to be tested is 1mL/s, and the duration of the stimulating airflow of the sample to be tested is 0.5s. The resulting electrophysiological signals were recorded with Syntech software. The same dose of trans-2-hexenyl hexanoate was stimulated 1 time on 1 antenna, 10 replicates per treatment.
EAG results are shown in FIG. 1, and the results show that spodoptera frugiperda male and female adults have significant electrophysiological responses to 1 μg, 10 μg and 100 μg of trans-2-hexenyl hexanoate, with the male and female adults having the highest electrophysiological response value to 100 μg.
Example 2: indoor test
The experiment was performed at room temperature of 24.+ -. 1 ℃ and air relative humidity of 40.+ -. 5% under natural light environment. The Y-type olfactometer (Y-type tube) was washed with acetone and then n-hexane before the experiment. Preparing the caproic acid trans-2-hexenyl ester into 0.1 mug/mug, 1 mug/mug and 10 mug/mug of 3 concentration gradient samples to be detected by using normal hexane, taking 10 mug of the sample to be detected and the normal hexane to be respectively dripped on two different filter papers, respectively putting the two filter papers into odor source device bottles on two side walls of a Y-shaped tube, opening an atmosphere sampling instrument, enabling the airflow velocity in the Y-shaped tube to be 100mL/min, putting spodoptera frugiperda adults into a release tube, observing for 5min, and considering that the odor source is selected when one arm of spodoptera frugiperda is selected for over 5cm for over 30s for the first time. Each test insect was used only 1 time, each treated adult had the same sex and at least 30 heads, and each 5 heads were cleaned and arm changed (the two arms of the odor source and control were changed) to eliminate errors due to the asymmetry or orientation of the two arms of the Y-tube.
As shown in FIG. 2, it is evident from FIG. 2A that 10. Mu.g and 100. Mu.g of trans-2-hexenyl hexanoate had a remarkable repellent effect on Spodoptera frugiperda, with 100. Mu.g of trans-2-hexenyl hexanoate repelling being the strongest repellent effect on Spodoptera frugiperda adults. From FIG. 2B, it is clear that Spodoptera frugiperda generally has a significant rejection phenomenon also for 10. Mu.g and 100. Mu.g of trans-2-hexenyl hexanoate, with 100. Mu.g of trans-2-hexenyl hexanoate being the most pronounced for Spodoptera frugiperda rejection.
Example 3 field test
The method comprises the steps of mixing caproic acid trans-2-hexenyl ester, ethyl acetate and trans-2-hexenal according to a mass ratio of 5:2:1, dissolving each 5g of the repellent compound in 5ml of n-hexane to prepare a slow-release carrier solution with a certain concentration, adding 0.25mg of antioxidant 2, 6-di-tert-butyl-p-cresol and 0.25mg of ultraviolet light adsorbent 2-hydroxy-4-methoxybenzophenone, sealing in a polyvinyl chloride bag, and placing in a refrigerator at 4 ℃ for standby. Suspending the slow release carriers 15cm higher than the corn plants of the target crops (namely 15cm higher than the highest point of the target crops), wherein the distance between each slow release carrier is 50m; meanwhile, a commercially available spodoptera frugiperda sex pheromone trap (wherein the main components are (Z) -9-dodecene-1-ol acetate, (Z) -9-tetradecene-1-ol acetate and (Z) -11-hexadecene-1-ol acetate) is hung at positions 5m, 10m, 15m and 20m away from the slow release carrier and respectively marked as T1A, T1B, T C and T1D, and three repeats are respectively marked as T1A1, T1A2, T1A3, T1B1, T1B2, T1B3, T1C1, T1C2, T1C3, T1D1, T1D2 and T1D3.
Cells of the same size were selected, fresh water of the same quality was hung in the same position as a control for the slow release carrier, and the same spodoptera frugiperda sex pheromone traps were hung at 5m, 10m, 15m and 20m from the fresh water position, and were designated as CA, CB, CC and CD as control groups, and three replicates were designated as CA1, CA2, CA3, CB1, CB2, CB3, CC1, CC2, CC3, CD1, CD2 and CD3, respectively. The number of insect mouths that each trap lured to was investigated daily and recorded for one week. The experimental results are shown in FIG. 3.
Example 4 field test
The method comprises the steps of mixing caproic acid trans-2-hexenyl ester, ethyl acetate and trans-2-hexenal according to a mass ratio of 6:3:2, dissolving each 5g of the repellent compound in 5ml of n-hexane to prepare a slow-release carrier solution with a certain concentration, respectively adding 0.25mg of antioxidant 2, 6-di-tert-butyl-p-cresol and 0.25mg of ultraviolet light adsorbent 2-hydroxy-4-methoxybenzophenone, sealing in a polyvinyl chloride bag, and placing in a refrigerator at 0-4 ℃ for standby. Suspending the slow release carriers 15cm higher than the corn plants of the target crops (namely 15cm higher than the highest point of the target crops), wherein the distance between each slow release carrier is 50m; meanwhile, a commercially available spodoptera frugiperda sex pheromone trap (wherein the main components are (Z) -9-dodecene-1-ol acetate, (Z) -9-tetradecene-1-ol acetate and (Z) -11-hexadecene-1-ol acetate) is hung at positions 5m, 10m, 15m and 20m away from the slow release carrier and respectively marked as T2A, T2B, T C and T2D, and three repeats are respectively marked as T2A1, T2A2, T2A3, T2B1, T2B2, T2B3, T2C1, T2C2, T2C3, T2D1, T2D2 and T2D3.
Cells of the same size were selected, fresh water of the same quality was hung in the same position as a control for the slow release carrier, and the same spodoptera frugiperda sex pheromone traps were hung at 5m, 10m, 15m and 20m from the fresh water position, and were designated as CA, CB, CC and CD as control groups, and three replicates were designated as CA1, CA2, CA3, CB1, CB2, CB3, CC1, CC2, CC3, CD1, CD2 and CD3, respectively. The number of insect mouths that each trap lured to was investigated daily and recorded for one week. The experimental results are shown in FIG. 4.
Example 5 field test
The method comprises the steps of mixing caproic acid trans-2-hexenyl ester, ethyl acetate and trans-2-hexenal according to a mass ratio of 7:4:3, dissolving each 5g of the repellent compound in 5ml of n-hexane to prepare a slow-release carrier solution with a certain concentration, adding 0.25mg of antioxidant 2, 6-di-tert-butyl-p-cresol and 0.25mg of ultraviolet light adsorbent 2-hydroxy-4-methoxybenzophenone respectively, sealing in a polyvinyl chloride bag, and placing in a refrigerator at 0-4 ℃ for standby. Suspending the slow release carriers 15cm higher than the corn plants of the target crops (namely 15cm higher than the highest point of the target crops), wherein the distance between each slow release carrier is 50m; meanwhile, the commercially available spodoptera frugiperda sex pheromone trap (wherein the main components are (Z) -9-dodecene-1-alcohol acetate, (Z) -9-tetradecene-1-alcohol acetate and (Z) -11-hexadecene-1-alcohol acetate) are respectively marked as T3A, T3B, T C and T3D at positions 5m, 10m, 15m and 20m of the slow release carrier, and three repeats are respectively marked as T3A1, T3A2, T3A3, T3B1, T3B2, T3B3, T3C1, T3C2, T3C3, T3D1, T3D2 and T3D3.
Cells of the same size were selected, fresh water of the same quality was hung in the same position as a control for the slow release carrier, and the same spodoptera frugiperda sex pheromone traps were hung at 5m, 10m, 15m and 20m from the fresh water position, and were designated as CA, CB, CC and CD as control groups, and three replicates were designated as CA1, CA2, CA3, CB1, CB2, CB3, CC1, CC2, CC3, CD1, CD2 and CD3, respectively. The number of insect mouths that each trap lured to was investigated daily and recorded for one week. The experimental results are shown in FIG. 5.
In conclusion, the results show that the caproic acid trans-2-hexenyl ester has remarkable repellent effect on spodoptera exigua during indoor experiments. In field experiments, the number of spodoptera frugiperda insect ports at the position of 5 meters can be obviously reduced under the conditions that the ratio of the repellent is 6:3:2 and 7:4:3, the number of insect ports induced by the repellent is 3+/-1 head and 1.3+/-0.58 head respectively, the number of insect ports induced by a control group (without the repellent slow-release carrier at the same position) is 36+/-1 head, the number of spodoptera frugiperda insect ports induced by the repellent at the position of 20 meters is obviously increased, the number of insect ports induced by the repellent is 255.3 +/-19.66 head and 220.7+/-12.86 head respectively, and the number of insect ports induced by the repellent slow-release carrier at the same position is 30+/-1.5 head. The prevention and control experiment proves that the combination of the suspended alarming pheromone and the compound slow release carrier of the plant green leaf smell and the spodoptera frugiperda sex pheromone trap can effectively reduce the number of spodoptera frugiperda insect population in a corn field after being used together, and increase the trapping efficiency of the spodoptera frugiperda sex pheromone trap so as to further enhance the prevention and control effect.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (1)
1. Use of trans-2-hexenyl hexanoate for repelling spodoptera frugiperda.
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| CN102986663A (en) * | 2012-12-24 | 2013-03-27 | 福建省农业科学院植物保护研究所 | Beet armyworm dual-sexual attractant |
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| AU2005232292B2 (en) * | 2004-11-12 | 2011-11-24 | The University Of New England | Pheromone attractants for the green mirid |
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| KR20140008199A (en) * | 2012-07-11 | 2014-01-21 | 경상대학교산학협력단 | Manufacturing method of (e)-2-hexenyl (e)-2-hexenoate and (e)-2-hexenyl (z)-3-hexenoate, the (e)-2-hexenyl (e)-2-hexenoate and (e)-2-hexenyl (z)-3-hexenoate manufactured by the same, and aggregation pheromone including the same |
| CN102986663A (en) * | 2012-12-24 | 2013-03-27 | 福建省农业科学院植物保护研究所 | Beet armyworm dual-sexual attractant |
| CN110074107A (en) * | 2019-05-14 | 2019-08-02 | 中国农业科学院植物保护研究所 | A kind of Spodopterafrugiperda attractant composition and its application |
| CN111436431A (en) * | 2020-03-31 | 2020-07-24 | 北京亚戈农生物药业有限公司 | Sex attractant for Spodoptera frugiperda, and preparation method and application thereof |
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