Plutella xylostella trapping composition containing athomin and preparation method and application thereof
By introducing horseradish into the pheromones of diamondback and optimizing the mass ratio, the problems of unsatisfactory trapping effects and stability in the prevention and control of diamondback are solved, and efficient and long-term trapping effects are achieved, reducing costs and operation difficulty.
Patent Information
- Application Number
- CN202411068738.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2024-12-20
AI Technical Summary
Among the existing diamondback moth control technology, the drug resistance problems of chemical pesticides, the durability and coverage limit of traps, seasonal effectiveness, resistance development and monitoring and maintenance problems lead to the unsatisfactory trapping effect, and the cost and operation difficulty are high.
Use horseradish as a synergist and rhodopterone to combine it with rhodopterone to improve the trapping effect and prolong the action time. By optimizing the mass ratio (1:30-80, especially 1:50), enhancing the trapping effect and stability, and using natural desulfurization Carrier stabilization compositions such as rubber plugs.
It significantly improves the trapping effect and stability of rhodopterone, extends the action time to more than 30 days, enhances the antioxidant and photolysis effects, and reduces cost and operation difficulty.
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Abstract
Description
Technical Field
[0001] The present application relates to the technical field of agricultural prevention and control, and in particular to a diamondback moth trapping composition containing horseradish, and a preparation method and application thereof. Background Art
[0002] The diamondback moth, scientifically known as Plutella xylostella, is also known as the cabbage worm, cabbage worm, rape worm, etc. It is a widely distributed agricultural pest around the world, especially causing serious damage to cruciferous vegetables (such as cabbage, kale, cauliflower, rapeseed, etc.). The larvae of the diamondback moth are the main pest stage. They feed on leaves, causing holes or completely eating the leaves, seriously affecting the growth and yield of crops.
[0003] The existing methods for controlling diamondback moth mainly include the following: (1) Biological control: biological control using natural enemies such as trichogrammatids and Cottontail wasps; (2) Physical control: using insect-proof nets to block the entry of adult insects, or setting up black light lamps in the field to kill adult insects; (3) Chemical control: pesticides can be used when necessary, but it is necessary to choose high-efficiency and low-toxic agents and strictly abide by the safe interval period to prevent pollution and the development of drug resistance; (4) Agricultural measures: crop rotation, deep plowing of the soil, removal of weeds and stumps in the field, and reduction of pest breeding grounds. However, the above-mentioned control measures have also encountered many drawbacks in actual application. On the one hand, due to the long-term control of diamondback moth by single or repeated use of the same type of chemical pesticides, it has developed strong drug resistance, which has gradually reduced the effectiveness of traditional chemical control methods. Farmers found that certain pesticides were not effective when used, and needed to frequently change the pesticides or increase the dosage, which not only increased the cost of prevention and control, but also may have adverse effects on the environment and human health. On the other hand, the living habits of the diamondback moth pose a challenge to prevention and control. It is small and flexible, has a short life cycle, strong reproductive capacity, and is hidden. The larvae feed on the back of leaves or in the leaf flesh in the early stages and are not easy to be detected. By the time obvious symptoms of damage are found, the larvae are often old and have increased drug resistance, making prevention and control more difficult. In addition, despite the plant protection policy of "prevention first, integrated prevention and control", in actual operations, the implementation of comprehensive measures such as agricultural prevention, physical prevention, and biological control is not common. Some farmers still rely too much on chemical pesticides and ignore the importance of other non-chemical prevention methods, resulting in unsatisfactory prevention and control effects and easy rebound.
[0004] As a green control technology, sex pheromone trapping of diamondback moth has been widely used and recognized in the prevention and control of diamondback moth in recent years. Lures containing precisely formulated sex pheromones are available on the market. Such lures are usually placed in special traps, such as triangular or boat-shaped traps, and arranged in the field at a certain density to kill male adults and interfere with mating. Pheromone trapping emphasizes precision and environmental protection, reduces dependence on chemical pesticides, and is conducive to protecting natural enemies and other non-target organisms in farmland ecosystems, which is in line with the concept of sustainable development of modern agriculture. This method can effectively control insect population density and reduce the harm of pests to crops. With the advancement of science and technology, the design and materials of traps are constantly optimized. For example, the water-disc sex pheromone lure is combined with automatic photography technology to more accurately monitor and evaluate the population dynamics of diamondback moth. In addition, intelligent monitoring systems have also begun to be used in pheromone trapping to achieve remote monitoring and data analysis, improving management efficiency.
[0005] While the diamondback moth sex pheromone is widely used, there are also some limitations and challenges, which are mainly reflected in the following aspects: (1) Climate and environmental factors: Weather conditions (such as temperature, humidity, wind direction and wind speed) can affect the volatilization and diffusion of pheromones, thereby affecting the trapping effect. Under extreme weather conditions, such as heavy rain or high temperature, the durability of the trap and the effectiveness of the lure may be reduced; (2) Coverage limitation: The effective range of sex pheromones is limited, usually within a range of tens to hundreds of meters, which means that dense deployment is required in a large area of farmland to ensure effective coverage. For vast farmland, this may increase costs and operational difficulties; (3) Seasonal effectiveness: The occurrence of diamondback moth is closely related to the season. Sex pheromone trapping may be more effective in some seasons, but the effect is greatly reduced during the inactive period of the pest. Therefore, it is necessary to accurately grasp the occurrence pattern of the pest and arrange and adjust the trapping strategy in a timely manner; (4) Resistance development: Long-term use of a single pheromone formula may cause the diamondback moth population to adapt to sex pheromones or escape behavior, thereby reducing the trapping effect. This requires continuous development of new formulas or mixed pheromones to maintain trapping efficiency; (5) Monitoring and maintenance: Regular inspection, cleaning and replacement of lure cores are key to ensuring trapping effectiveness. However, in actual operations, this may be difficult to implement due to insufficient manpower or poor management, affecting prevention and control effectiveness.
[0006] Therefore, based on various limitations of the prior art, there is an urgent need for a trapping method that can achieve a long trapping time, high trapping efficiency and is easy to deploy and use. Summary of the invention
[0007] The first aspect of the present application provides the use of horseradish as a synergist in improving the trapping effect of Plutella xylostella sex pheromone on Plutella xylostella.
[0008] Horseradish, also known as mustard or water-soluble allyl isothiocyanate, is a type of secondary metabolite extracted from cruciferous plants such as horseradish. It is a liquid that is volatile at room temperature and looks like oil. It contains a compound with N=C=S active groups and has a pungent odor and fumigation activity. Horseradish is an environmentally friendly botanical pesticide in agriculture, which has a broad-spectrum and efficient killing effect on a variety of pathogenic fungi, bacteria, viruses, nematodes and small pests. It can be used for the prevention and control of vegetable and storage pests, as well as soil disinfection, and is particularly suitable for the production of organic, green and pollution-free agricultural products. There is no report in the prior art that horseradish has a direct control effect on diamondback moth. Based on the general understanding of the art, it may theoretically affect the living environment of pests or directly act on pests through its fumigation. However, since horseradish is mainly used for soil treatment and storage pest control, there is no evidence that it has a direct control effect on pests.
[0009] The applicant unexpectedly discovered in the experiment that horseradish can be used as a synergist, and adding horseradish and Plutella xylostella sex pheromone simultaneously can significantly improve the trapping effect of Plutella xylostella sex pheromone on Plutella xylostella.
[0010] The second aspect of the present application provides a diamondback moth trapping composition containing horseradish, wherein the diamondback moth trapping composition comprises diamondback moth sex pheromone and horseradish.
[0011] In some embodiments, the mass ratio of the diamondback moth sex pheromone to horseradish is 1:(30-80).
[0012] In some embodiments, the mass ratio of the diamondback moth sex pheromone to horseradish is 1:(40-70).
[0013] In some embodiments, the mass ratio of the diamondback moth sex pheromone to horseradish is 1:(40-60).
[0014] In some embodiments, the mass ratio of the diamondback moth sex pheromone to horseradish is 1:50.
[0015] The applicant also found that the compound ratio of the diamondback moth sex pheromone and horseradish is particularly critical to the trapping effect. When the mass ratio of the two is 1: (30-80), especially 1: 50, the trapping effect is excellent. The applicant believes that the addition of horseradish may change the field microenvironment, indirectly affecting the behavior or physiological state of the diamondback moth, reducing other odor interference in the field, making the sex pheromone signal more prominent, and further enhancing the attraction effect of the sex pheromone. In addition, the physiological effect of horseradish may affect its sensitivity to sex pheromones. It affects the olfactory system of the diamondback moth and regulates the regulation mode of chemical communication within the diamondback moth, making the diamondback moth more sensitive to sex pheromones and thus easier to be trapped. The applicant further discovered that when the mass ratio of the diamondback moth sex pheromone to horseradish is less than 1:80, the diamondback moth trapping composition has insufficient trapping capacity due to the low proportion of the diamondback moth sex pheromone in the composition; when the mass ratio of the diamondback moth sex pheromone to horseradish is greater than 1:30, the enhancing effect of horseradish cannot be fully reflected due to the low proportion of horseradish in the composition.
[0016] High temperature or direct sunlight exposure to diamondback moth sex pheromone may accelerate its decomposition and shorten its effective use period. The existing diamondback moth sex pheromone lure core generally has an effective time of 10-20 days, after which it gradually loses its effectiveness. The present application unexpectedly discovered that when the mass ratio of diamondback moth sex pheromone to horseradish is 1: (30-80) and especially 1: 50, the effect time of diamondback moth sex pheromone can be unexpectedly increased to more than 30 days, significantly improving the antioxidant and anti-photolysis effects of diamondback moth sex pheromone.
[0017] The third aspect of the present application provides a method for preparing the above-mentioned diamondback moth trapping composition containing horseradish, which comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a carrier.
[0018] The carrier includes but is not limited to natural devulcanized rubber plugs, capillary microtubes (such as thin and long transparent PVC plastic tubes), polyethylene small black bottles or electrostatic spinning fiber material belts.
[0019] In some embodiments, the content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 0.5-100 mg.
[0020] In some embodiments, the stabilizer includes at least one of tert-butylhydroquinone, 3,4.5-trihydroxybenzoic acid n-propyl ester, 2,6-di-tert-butyl-4-methylphenol, and butylated hydroxyanisole.
[0021] In some embodiments, the organic solvent includes at least one of olive oil, triglyceride, dioctyl terephthalate, chlorinated paraffin, and n-hexane.
[0022] The fourth aspect of the present application provides the use of the above-mentioned diamondback moth trapping composition in the control of diamondback moth.
[0023] The fifth aspect of the present application provides a method for controlling diamondback moth, which comprises: placing a diamondback moth trapping composition with a carrier in a control area for trapping.
[0024] Compared with the prior art, the present invention has at least the following beneficial effects:
[0025] 1. The present application discovered that horseradish can be used as a synergist. The simultaneous addition of Plutella xylostella sex pheromone and horseradish can significantly improve the trapping effect of Plutella xylostella sex pheromone on Plutella xylostella and its stability in the environment, and can prolong the duration of action.
[0026] 2. When the mass ratio of sex pheromone to horseradish is 1:(30-80), especially 1:50, the trapping effect is the best. The addition of horseradish may change the field microenvironment, indirectly affect the behavior or physiological state of the diamondback moth, reduce the interference of other odors in the field, make the signal of sex pheromone more prominent, and further enhance the attraction effect of sex pheromone. In addition, the physiological effect of horseradish may affect its sensitivity to sex pheromone. It affects the olfactory system of the diamondback moth and regulates the regulation mode of chemical communication within the diamondback moth, making the diamondback moth more sensitive to sex pheromones and easier to be trapped.
[0027] 3. The existing diamondback moth sex pheromone attractants generally have an action time of 10-20 days, after which they gradually become ineffective. The present application unexpectedly discovered that when the mass ratio of diamondback moth sex pheromone to horseradish is 1:(30-80), especially 1:50, the action time of diamondback moth sex pheromone can be unexpectedly increased to more than 30 days, significantly improving the antioxidant and anti-photolysis effects of diamondback moth sex pheromone.
[0028] Regarding the above-mentioned beneficial technical effects, the applicant needs to point out and emphasize that: although horseradish may have a certain insecticidal effect when used alone, the applicant unexpectedly found that the simultaneous addition of Plutella xylostella sex pheromone and horseradish obtains a technical effect that neither of the two can achieve alone, which is completely unpredictable by those skilled in the art; in addition, the applicant found through research that the ratio of Plutella xylostella sex pheromone to horseradish is very critical, too little Plutella xylostella sex pheromone results in insufficient trapping ability of the Plutella xylostella trapping composition, and too much Plutella xylostella sex pheromone results in insufficient horseradish, which in turn makes the enhancement effect of horseradish not fully manifested; further, the applicant pointed out that the trapping effect (the number of trapped moths, the number of heads trapped) and the trapping effect of the Plutella xylostella trapping composition are very important. It is very difficult to take both the intensity and duration of the trapping effect of the diamondback moth trapping composition into account. If a very strong trapping effect is required, the amount of the diamondback moth sex pheromone needs to be relatively large, and correspondingly, the amount of other components such as horseradish and stabilizers is relatively small, which will affect the action time of the composition, and it is not possible to achieve a very long effect, and the duration of action is limited. The applicant needs to emphasize again that it is very difficult to take both the intensity and duration of the trapping effect of the diamondback moth trapping composition into account. On the one hand, it can achieve a very strong trapping effect, and on the other hand, it must maintain a long action time. However, the present application has achieved very good results in both the trapping effect and the action time by introducing horseradish into the diamondback moth sex pheromone and conducting a lot of research on the ratio of the two. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the present application more clear, the present application is further described in detail below. However, it should be understood that the description here is only used to explain the present application and is not used to limit the scope of the present application.
[0030] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application, and the terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The reagents and instruments used herein are all commercially available, and the characterization means involved can refer to the relevant descriptions in the prior art, which will not be repeated herein.
[0031] The diamondback moth sex pheromone described in the present invention is a compound of Z11-16:Ald (cis-11-hexadecenal), Z11-16:OAc (cis-11-hexadecenyl acetate) and Z11-16:OH (cis-11-hexadecenol) in a molar ratio of 5:5:1.
[0032] Example 1
[0033] This embodiment provides a diamondback moth trapping composition containing horseradish, which includes diamondback moth sex pheromone and horseradish in a mass ratio of 1:50.
[0034] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0035] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0036] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0037] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0038] Example 2
[0039] This embodiment provides a diamondback moth trapping composition containing horseradish, which includes diamondback moth sex pheromone and horseradish in a mass ratio of 1:30.
[0040] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0041] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0042] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0043] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0044] Example 3
[0045] This embodiment provides a diamondback moth trapping composition containing horseradish, which includes diamondback moth sex pheromone and horseradish in a mass ratio of 1:40.
[0046] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0047] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0048] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0049] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0050] Example 4
[0051] This embodiment provides a diamondback moth trapping composition containing horseradish, which includes diamondback moth sex pheromone and horseradish in a mass ratio of 1:60.
[0052] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0053] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0054] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0055] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0056] Example 5
[0057] This embodiment provides a diamondback moth trapping composition containing horseradish, which includes the diamondback moth sex pheromone and horseradish in a mass ratio of 1:70.
[0058] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0059] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0060] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0061] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0062] Example 6
[0063] This embodiment provides a diamondback moth trapping composition containing horseradish, which includes diamondback moth sex pheromone and horseradish in a mass ratio of 1:80.
[0064] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0065] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0066] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0067] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0068] Comparative Example 1
[0069] This comparative example provides a diamondback moth trapping composition containing horseradish, which comprises the diamondback moth sex pheromone and horseradish in a mass ratio of 1:10.
[0070] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0071] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0072] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0073] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0074] Comparative Example 2
[0075] This comparative example provides a diamondback moth trapping composition containing horseradish, which comprises the diamondback moth sex pheromone and horseradish in a mass ratio of 1:20.
[0076] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0077] The stabilizer is tert-butylhydroquinone, and the added amount of the stabilizer is 3% of the total weight of the diamondback moth sex pheromone and horseradish.
[0078] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0079] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0080] Comparative Example 3
[0081] This comparative example provides a diamondback moth trapping composition containing horseradish, which comprises the diamondback moth sex pheromone and horseradish in a mass ratio of 1:90.
[0082] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0083] The stabilizer is tertiary butyl hydroquinone, and the added amount of the stabilizer is 3% relative to the total weight of the diamondback moth sex pheromone and horseradish.
[0084] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0085] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0086] Comparative Example 4
[0087] This comparative example provides a diamondback moth trapping composition containing horseradish, which comprises the diamondback moth sex pheromone and horseradish in a mass ratio of 1:100.
[0088] The preparation method of the diamondback moth trapping composition comprises: uniformly mixing the diamondback moth trapping composition and a stabilizer in an organic solvent, and putting the mixture into a natural devulcanized rubber plug to obtain the diamondback moth trapping composition.
[0089] The stabilizer is tertiary butyl hydroquinone, and the added amount of the stabilizer is 3% relative to the total weight of the diamondback moth sex pheromone and horseradish.
[0090] The organic solvent is triglyceride, and the added amount of the organic solvent is thirty times the total weight of the diamondback moth sex pheromone, horseradish and stabilizer.
[0091] The content of the diamondback moth trapping composition in each natural devulcanized rubber plug is 10 mg.
[0092] Comparative Example 5
[0093] In this comparative example, only the diamondback moth sex pheromone was used as an attractant, and the content of the diamondback moth sex pheromone in each natural devulcanized rubber plug was 10 mg.
[0094] Comparative Example 6
[0095] In this comparative example, only horseradish is used as the trapping agent, and the content of horseradish in each natural devulcanized rubber plug is 10 mg.
[0096] Performance testing.
[0097] The natural desulfurized rubber plugs prepared in the above embodiments and comparative examples were used for field experiments in cabbage fields. The specific experimental method was as follows: the natural desulfurized rubber plugs were used in combination with triangular traps, each trap was equipped with one natural desulfurized rubber plug, and 2 natural desulfurized rubber plugs per mu. The number of male insects trapped on the 7th day, 14th day, 21st day and 35th day were recorded respectively. After each stage, the dead insects in the trap were cleaned up in time, and the results were recorded in Table 1.
[0098] Table 1
[0099]
[0100] From the above performance test results, it can be seen that the trapping effect of Examples 1-6 is good, especially the comprehensive performance of Example 1 is the most outstanding, the trapping ability is the strongest, and the stability is the strongest. This is mainly because horseradish can be used as a synergist. The simultaneous addition of the two can significantly improve the trapping effect of the diamondback moth sex pheromone on the diamondback moth, and when the mass ratio of the diamondback moth sex pheromone to horseradish is 1:50, not only a good trapping effect can be obtained, but also a longer duration can be achieved. In Comparative Examples 1-4, the mass ratio of the diamondback moth sex pheromone to horseradish was changed, and it can be seen that the trapping effect decreased, proving that the ratio specified in this application has an important influence on the trapping effect and the stability of the composition.
[0101] In addition, compared with the use of only the diamondback moth sex pheromone in Comparative Example 5, the present application demonstrates that the addition of horseradish can improve the stability of the diamondback moth sex pheromone in the environment and prolong the action time; in Comparative Example 6, only the use of horseradish cannot achieve a good trapping effect, and the sustainability is relatively poor.
[0102] The applicant declares that the present application uses the above-mentioned embodiments to illustrate the present application's Plutella xylostella trapping composition containing horseradish and its preparation method and application, but the present application is not limited to the above-mentioned embodiments, that is, it does not mean that the present application must rely on the above-mentioned embodiments to be implemented. The technicians in the relevant technical field should understand that any improvement to the present application, the equivalent replacement of the raw materials of the present application's product, the addition of auxiliary components, the selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present application.
[0103] The preferred embodiments of the present application are described in detail above; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.
[0104] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.
Claims
1. A diamondback moth trapping composition, characterized in that: The diamondback moth trapping composition comprises diamondback moth sex pheromone and horseradish.
2. The diamondback moth trapping composition according to claim 1, characterized in that: The mass ratio of the diamondback moth sex pheromone to horseradish is 1:(30-80).
3. The diamondback moth trapping composition according to claim 2, characterized in that: The mass ratio of the diamondback moth sex pheromone to horseradish is 1:(40-70).
4. The diamondback moth trapping composition according to claim 3, characterized in that: The mass ratio of the diamondback moth sex pheromone to horseradish is 1:(40-60).
5. The diamondback moth trapping composition according to claim 4, characterized in that: The mass ratio of the diamondback moth sex pheromone to horseradish is 1:
50.
6. A method for preparing the diamondback moth trapping composition according to any one of claims 1 to 5, characterized in that: The preparation method comprises: mixing a diamondback moth trapping composition and a stabilizer uniformly in an organic solvent, and then putting the mixture into a carrier; the stabilizer comprises at least one of tert-butylhydroquinone, 3,4,5-trihydroxybenzoic acid n-propyl ester, 2,6-di-tert-butyl-4-methylphenol, and butylated hydroxyanisole.
7. The preparation method according to claim 6, characterized in that: The organic solvent includes one or more of olive oil, triglyceride, dioctyl terephthalate, chlorinated paraffin, and n-hexane; and / or, The content of the diamondback moth trapping composition in each carrier is 0.5-100 mg.
8. Use of the diamondback moth trapping composition according to any one of claims 1 to 5 in controlling diamondback moth.
9. A method for controlling Plutella xylostella using the trapping composition for Plutella xylostella according to any one of claims 1 to 5, characterized in that: The method comprises: placing a diamondback moth trapping composition with a carrier in a prevention and control area for trapping.
10. The application of horseradish as a synergist in improving the trapping effect of Plutella xylostella sex pheromone on Plutella xylostella.