CN108812663B - Application of 2-nonanone as female striped rice borer repellent component and repellent - Google Patents

Application of 2-nonanone as female striped rice borer repellent component and repellent Download PDF

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CN108812663B
CN108812663B CN201810758970.6A CN201810758970A CN108812663B CN 108812663 B CN108812663 B CN 108812663B CN 201810758970 A CN201810758970 A CN 201810758970A CN 108812663 B CN108812663 B CN 108812663B
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female
repellent
chilo suppressalis
nonanone
weight
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CN108812663A (en
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李云河
胡晓云
焦耀宇
陈秀萍
彭于发
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Institute of Plant Protection of Chinese Academy of Agricultural Sciences
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Institute of Plant Protection of Chinese Academy of Agricultural Sciences
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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
    • 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
    • A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
    • 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
    • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
    • A01N31/02—Acyclic compounds
    • 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
    • A01N37/36—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 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
    • A01N37/38—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 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
    • A01N37/40—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 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
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  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention provides application of 2-nonanone as a striped rice borer female repellent component and a striped rice borer female repellent, wherein the repellent component preferably consists of 2-nonanone, linalool, 2-heptanol, D-limonene, 2-heptanone, methyl salicylate, α -pinene, α -cedrene, β -myrcene and caryophyllene.

Description

Application of 2-nonanone as female striped rice borer repellent component and repellent
Technical Field
The invention relates to application of 2-nonanone as a component of a Chilo suppressalis female insect repellent, and the Chilo suppressalis female insect repellent.
Background
Chilo suppersalis Walker (Chilo suppersalis Walker) is an important lepidopteran pest in rice fields, and occurs 2-3 generations per year on average in Chinese rice areas, but may occur as many as 5 generations in south rice areas. The first generation chilo suppressalis generally occurs at the end of 5 months or early 6 months, and the second generation chilo suppressalis occurs at the end of 7 months and early 8 months. In southern rice regions in China, almost every growth stage of rice is harmed by chilo suppressalis, and particularly, the damage is serious in the tillering stage and heading stage. Chilo suppressalis damage can lead to "heartburn" and "white head" in rice plants. The chilo suppressalis is harmful, causing huge economic losses each year. Traditionally, the control of chilo suppressalis relies mainly on chemical pesticides. The large application of pesticides presents numerous environmental and social problems. With the enhancement of awareness of people on ecology, environment and food safety and the reduction of the application amount of chemical pesticides, the development of a 'green pest control' strategy becomes a strategic target of the development of the current plant protection subject.
Plant-derived attractants or repellents belong to a broad class of semiochemicals and are composed of a single or multiple plant volatiles or derivatives thereof. The functions of the substances can be analyzed and identified, the effect of some important volatile matters on the regulation and control of insect behaviors can be proved, and the attractant or the repellent with high-efficiency regulation and control effect on the insect behaviors can be developed, so that the pests are interfered and prevented from being harmful crops or attracting natural enemies, and the purpose of directly or indirectly preventing and controlling the pests can be achieved. The product has the advantages of environmental protection, no residue, safety and no toxicity to people and livestock, and has wide application prospect under the current concept of green agricultural development.
Therefore, the finding of plant volatile matters or derivatives thereof with high-efficiency repellent effect on the chilo suppressalis female insects has important significance for preventing and controlling chilo suppressalis harming rice in China, the plant volatile matters or derivatives thereof are used as the components of the chilo suppressalis female insect repellent effect, the environment-friendly and high-efficiency chilo suppressalis female insect repellent is obtained, the effect of repelling the chilo suppressalis female insects to lay eggs can be achieved, the pollution-free production of rice is facilitated, and the application and the repellent have wide economic, social and ecological benefits.
Disclosure of Invention
The first purpose of the invention is to provide the application of using a specific semiochemical as the component of the female striped rice borer repellent, so that the effect of using the semiochemical to realize environment-friendly and efficient repellent of the female striped rice borers is achieved, and the effect of repelling the eggs of the female striped rice borers can be correspondingly achieved.
The second purpose of the invention is to provide a striped rice borer female insect repellent to obtain an environment-friendly and efficient striped rice borer female insect repellent product.
Based on the first purpose, the invention provides the application of 2-nonanone as the component of the Chilo suppressalis female insect repellent, wherein the efficacy component of the Chilo suppressalis female insect repellent contains 2-nonanone.
Preferably, the efficacy component of the Chilo suppressalis female insect repellent is a single component of 2-nonanone.
Preferably, the efficacy component of the striped rice borer female insect repellent consists of 2-nonanone and at least five substances selected from linalool, 2-heptanol, D-limonene, 2-heptanone, methyl salicylate, α -pinene, α -cedrene, β -myrcene and caryophyllene.
More preferably, the efficacy component of the striped rice borer female insect repellent consists of 2-nonanone, linalool, 2-heptanol, D-limonene, 2-heptanone, methyl salicylate, α -pinene, α -cedrene, β -myrcene and caryophyllene.
Further preferably, the efficacy component of the Chilo suppressalis female insect repellent comprises 10 parts by weight of 2-nonanone, 50-150 parts by weight of linalool, 100-300 parts by weight of 2-heptanol, 200-400 parts by weight of D-limonene, 100-300 parts by weight of 2-heptanone, 20-50 parts by weight of methyl salicylate, 10-30 parts by weight of α -pinene, 5-20 parts by weight of α -cedrene, 10-30 parts by weight of β -myrcene and 10-30 parts by weight of caryophyllene.
Preferably, the Chilo suppressalis female insect repellent is a solution containing 2-nonene, and the solvent of the solution is a volatile solvent.
Preferably, the quantity ratio of the effective component of the Chilo suppressalis female insect repellent to the solvent is 0.1-20 mu g/mu l.
Preferably, the Chilo suppressalis female insect repellent is a solution containing 2-nonanone, the Chilo suppressalis female insect repellent is loaded on a carrier, a volatile of the solution containing 2-nonanone is used for repelling the Chilo suppressalis female insects, and the carrier is a container or an adsorbate.
According to the second purpose, the Chilo suppressalis female insect repellent provided by the invention contains 2-nonanone.
The Chilo suppressalis female insect repellent related to any one of the applications is a technical scheme to be protected by the invention.
The 2-nonanone provided by the invention is used as a component of the striped rice borer female repellent, and the striped rice borer female repellent can be used for repelling striped rice borers, correspondingly can achieve the effect of repelling spawning of striped rice borers, provides a new approach for environment-friendly and efficient prevention and control of striped rice borers harming rice, has important significance for prevention and control of striped rice borers harming rice in China, is beneficial to pollution-free production of rice, and has wide economic, social and ecological benefits.
Drawings
Figure 1 is a bar graph showing the repellency of individual repellents against female chilo suppressalis insects for each example of the invention and blank control. The components of the repellents in each example represented by the abscissas 1-12 in the figure are detailed in the labels directly below.
Detailed Description
The invention provides application of 2-nonanone as a Chilo suppressalis female insect repellent component, wherein the efficacy component of the Chilo suppressalis female insect repellent contains 2-nonanone. The effective component refers to a component which plays a repelling role, and is relative to auxiliary materials, solvents and the like which do not have the repelling effect. The use comprises the following steps: the 2-nonanone is used for preparing a female striped rice borer repellent product, and the product can be a repellent or a repellent device; the application of the 2-nonanone in repelling Chilo suppressalis female insects can be realized by directly utilizing a single volatile matter of the 2-nonanone, can also be utilized in a composition form, and can also be utilized through a volatilization device. In a word, various direct or indirect purposes only utilizing the function of repelling the chilo suppressalis female by the 2-nonanone belong to the technical scheme to be protected by the invention.
The Chilo suppressalis female insect repellent can only comprise an efficacy component, or can be a solution formed by dissolving the efficacy component as a solute in a solvent, wherein the efficacy component can only comprise a single component of 2-nonanone, or can be composed of multiple components containing 2-nonanone.
The efficacy component can be a single component of 2-nonanone or a mixture of 2-nonanone and other substances, preferably 2-nonanone and at least five selected from the group consisting of linalool, 2-heptanol, D-limonene, 2-heptanone, methyl salicylate, α -pinene, α -cedrene, β -myrcene, and caryophyllene, more preferably 2-nonanone, linalool, 2-heptanol, D-limonene, 2-heptanone, methyl salicylate, α -pinene, α -cedrene, β -myrcene, and caryophyllene.
The efficacy component comprises 10 parts by weight of 2-nonanone, 50-150 parts by weight of linalool, 100-300 parts by weight of 2-heptanol, 200-400 parts by weight of D-limonene, 100-300 parts by weight of 2-heptanone, 20-50 parts by weight of methyl salicylate, 10-30 parts by weight of α -pinene, 5-20 parts by weight of α -cedrene, 10-30 parts by weight of β -myrcene and 10-30 parts by weight of caryophyllene, preferably 10 parts by weight of 2-nonanone, 70-150 parts by weight of linalool, 150-200 parts by weight of 2-heptanol, 280-350 parts by weight of D-limonene, 150-250 parts by weight of 2-heptanone, 25-40 parts by weight of methyl salicylate, 15-25 parts by weight of α -pinene, 5-15 parts by weight of α -cedrene, 15-25 parts by weight of 5-myrcene and 15-25 parts by weight of caryophyllene, more preferably 10-120 parts by weight of 2-nonyl ketone, 100-150-160-200 parts by weight of linaloone, 10-40 parts by weight of caryophyllene, 160-8622 parts by weight of linaloone and 10-40 parts by weight of caryophyllene.
Preferably, the Chilo suppressalis female insect repellent is a solution containing 2-nonanone, and the solvent of the solution is a volatile solvent. The volatile solvent may be selected from one or more of n-hexane, acetone and dichloromethane, preferably n-hexane.
The quantity ratio of the effective component of the Chilo suppressalis female insect repellent to the solvent can be 0.1-20 mu g/mu l, preferably 0.5-10 mu g/mu l, more preferably 0.7-2 mu g/mu l, and particularly preferably 0.8-1.5 mu g/mu l.
Preferably, the Chilo suppressalis female insect repellent is loaded on a carrier, the Chilo suppressalis female insect repellent is repelled by utilizing volatile matters of the solution containing 2-nonanone, the carrier is a container or an adsorbate, the container can be provided with one or more volatilization ports, and the adsorbate can be made of various materials with adsorption effects, such as rubber, wood or sponge.
The Chilo suppressalis female insect repellent related to any one of the applications is the Chilo suppressalis female insect repellent to be protected.
The invention is further explained by specific examples and comparative examples, wherein the numbers are uniformly numbered according to the sequence of examples 1-11, the example of the Chilo suppressalis female repellent effect component containing 2-nonanone is the example of the invention, and the example without 2-nonanone is the comparative example for effect comparison.
Example 1
A repellent: linalool is used as an effective component, and prepared into a solution with the concentration of 100 mug of the effective component per 100 mul of n-hexane to be used as a female striped rice borer repellent. Linalool is a commercial reagent, and the commercial information is as follows: the manufacturer: SIGMA-ALDRICH; and (4) commodity numbering: 78-70-6; the purity is more than or equal to 97 percent.
Repelling experiment: 100 mul of the prepared solution serving as the female striped rice borer repellent is absorbed by a liquid transfer gun and injected into a rubber stopper (pheromone attracting core of Beijing Zhongjie tetragonal Biotechnology Co., Ltd., rubber material, inner diameter of 7mm, height of 1.3cm) to prepare a repellent core, and then the rubber stopper is placed on a bracket between two rice plants serving as a taste source, wherein the bracket is 30cm high, and the average plant height of 1 rubber stopper in one experiment is 55cm, that of 2 rice plants. The wind tunnel test verifies that the odor source has the effect of repelling mated female chilo suppressalis adults. The rice plant carrying the flavor source is placed at the end against the wind of a wind tunnel, and chilo suppressalis female moths are released at the other end of the wind tunnel which is 1.5 meters away from the rice plant, wherein the specification of the wind tunnel is 230 multiplied by 80cm, and the wind speed is 0.2 m/s. The time for which the moth contacted the rice plant (odor source) was recorded for 10 minutes for each moth, and when the moth did not leave the release stage within 10 minutes, no reaction was recorded.
The 57-head chilo suppressalis female moth was tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 19.
Example 2
A repellent: 2-heptanol is used as an effective component, and a solution with the concentration of 100 mug of the effective component per 100 mul of n-hexane is prepared to be used as a striped rice borer female repellent. The 2-heptanol is a commercial reagent, and the commercial information is as follows: the manufacturer: SIGMA-ALDRICH; and (4) commodity numbering: 543-49-7; the purity is more than or equal to 97 percent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 57-head chilo suppressalis female moth was tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 18.
Example 3
A repellent: d-limonene is used as an effective component, and a solution with the concentration of 100 mu g of the effective component per 100 mu l of n-hexane is prepared and used as a striped rice borer female insect repellent. D-limonene is a commodity reagent, and the commodity information is as follows: the manufacturer: SIGMA-ALDRICH; and (4) commodity numbering: 5989-27-5; the purity is more than or equal to 97 percent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 25.
Example 4
A repellent: 2-heptanone is used as an effective component, and a solution with the concentration of 100 mug of the effective component per 100 mul of n-hexane is prepared to be used as a striped rice borer female repellent. The 2-heptanone is a commercial reagent, and the commercial information is as follows: the manufacturer: SIGMA-ALDRICH; and (4) commodity numbering: 110-43-0; the purity is more than or equal to 98 percent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 25.
Example 5
A repellent: methyl salicylate is used as an efficacy component, and a solution with the concentration of 100 mug efficacy component/100 mul n-hexane is prepared to be used as a striped rice borer female repellent. Methyl salicylate is a commercial reagent, and the commercial information is as follows: the manufacturer: SIGMA-ALDRICH; and (4) commodity numbering: 119-36-8; the purity is more than or equal to 99 percent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 20.
Example 6
The repellent is prepared by using α -pinene as an effective component, preparing a solution with the concentration of 100 mu g of the effective component per 100 mu l of n-hexane as a Chilo suppressalis female insect repellent, α -pinene is a commercial reagent, and the commercial information comprises SIGMA-ALDRICH, the commercial number is 7785-70-8, and the purity is more than or equal to 99%.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 19.
Example 7
The repellent is prepared by using α -cedrene as an effective component, preparing a solution with the concentration of 100 mu g of the effective component per 100 mu l of n-hexane as a chilo suppressalis female insect repellent, α -cedrene is a commercial reagent, and the commercial information comprises a manufacturer, SIGMA-ALDRICH, a commercial number of 469-61-4 and the purity of more than or equal to 95%.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 16.
Example 8
The repellent is prepared by using β -myrcene as an effective component, preparing a solution with the concentration of 100 mu g of the effective component per 100 mu l of n-hexane, and using the solution as a Chilo suppressalis female insect repellent, β -myrcene is a commercial reagent, and the commercial information comprises the following manufacturers, SIGMA-ALDRICH, the commercial number is 123-35-3, and the purity is more than or equal to 95%.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 10.
Example 9
A repellent: caryophyllene is used as an efficacy component, and a solution with the concentration of 100 mug efficacy component/100 mul n-hexane is prepared to be used as a striped rice borer female insect repellent. The caryophyllene is a commodity reagent, and the commodity information is as follows: the manufacturer: SIGMA-ALDRICH; and (4) commodity numbering: 87-44-5; the purity is more than or equal to 98.5 percent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 11.
Example 10
A repellent: 2-nonanone is used as an effective component, and a solution with the concentration of 100 mug of the effective component per 100 mul of n-hexane is prepared to be used as a striped rice borer female repellent. The 2-nonanone is a commercial reagent, and the commercial information is as follows: the manufacturer: shanghai Aladdin Biotechnology GmbH; and (4) commodity numbering: 821-55-6; the purity is more than or equal to 99 percent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 57-head chilo suppressalis female moth was tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 11.
Example 11
The repellent is prepared by taking β -myrcene, 2-heptanol, α -cedrene, caryophyllene and 2-nonanone in a weight ratio of 2: 17: 1: 2: 1 as effective components, and preparing a solution with the concentration of 100 mu g of the effective components per 100 mu l of n-hexane to be used as the Chilo suppressalis female insect repellent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 57-head chilo suppressalis female moth was tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 11.
Example 12
The repellent is prepared by taking 2-nonanone, linalool, 2-heptanol, D-limonene, 2-heptanone, methyl salicylate, α -pinene, α -cedrene, β -myrcene and caryophyllene as effective components in a weight ratio of 1: 11: 17: 32: 22: 3: 2: 1: 2: 2, and preparing a solution with the concentration of 100 mu g of the effective components per 100 mu l of n-hexane to be used as the Chilo suppressalis female insect repellent.
Repelling experiment: the experimental conditions and experimental procedures were the same as in example 1. The 56 head chilo suppressalis female moths were tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 8.
Blank control
Repellency experiments were performed according to the experimental conditions and experimental procedures of example 1 using n-hexane without any reporter compound added as a control. The 57-head chilo suppressalis female moth was tested. The number of the rice plants (flavor sources) contacted within 10 minutes was counted as 29.
Comparison results
Figure 1 is a bar graph showing the repellency of individual repellents against female chilo suppressalis insects for each example of the invention and blank control. It can be seen visually that the repellent of example 10, which uses 2-nonanone as the effective component, has a greater repellent effect than the repellents of the other single-effect components (i.e., the repellents of examples 1-9). The repellent of example 12 containing ten efficacy components was much stronger in repellent effect than the efficacy components of the maximum examples 2 to 5. The repellent with multiple components releases relatively less single component to the natural environment, is beneficial to preventing the environmental hazard caused by the superposition of the release amount of certain components, and has better environmental friendliness.
The results clearly show that the 2-nonanone provided by the invention can be used as a component of the striped rice borer female repellent, and the striped rice borer female repellent can be used for repelling striped rice borers, correspondingly can achieve the effect of repelling eggs of the striped rice borers, provides a new way for environment-friendly and efficient prevention and control of striped rice borers harmful to rice, has important significance for prevention and control of striped rice borers harmful to rice in China, is beneficial to pollution-free production of rice, and has wide economic, social and ecological benefits.
Because chilo suppressalis mainly damages rice, the prevention and treatment of chilo suppressalis damage is taken as an example in the text, but it is easy to understand that the invention can also be applied to the prevention and treatment of chilo suppressalis damage.

Claims (4)

  1. The application of the 2-nonanone as the component of the Chilo suppressalis female insect repellent is characterized in that the efficacy component of the Chilo suppressalis female insect repellent is a single 2-nonanone component, the Chilo suppressalis female insect repellent is a solution containing the 2-nonanone, the solvent of the solution is a volatile solvent, and the quantity ratio of the efficacy component of the Chilo suppressalis female insect repellent to the solvent is 0.7-2 mu g/mu l.
  2. The application of the 2.2-nonanone as the Chilo suppressalis female insect repellent is characterized in that the efficacy component of the Chilo suppressalis female insect repellent consists of 10 parts by weight of 2-nonanone, 100-120 parts by weight of linalool, 160-180 parts by weight of 2-heptanol, 300-330 parts by weight of D-limonene, 200-240 parts by weight of 2-heptanone, 28-35 parts by weight of methyl salicylate, 18-22 parts by weight of α -pinene, 8-12 parts by weight of α -cedrene, 18-22 parts by weight of β -myrcene and 18-22 parts by weight of caryophyllene, the Chilo suppressalis female insect repellent is a solution containing 2-nonanone, the solvent of the solution is a volatile solvent, and the amount ratio of the efficacy component of the Chilo suppressalis female insect repellent to the solvent is 0.7-2 mu g/mu l.
  3. 3. The use according to claim 1 or 2, wherein the Chilo suppressalis female repellent is loaded on a carrier, and volatiles of a solution containing 2-nonanone are used for repelling Chilo suppressalis female insects, and the carrier is a container or an adsorbate.
  4. 4. Chilo suppressalis female insect repellent, characterized in that, is the Chilo suppressalis female insect repellent for the use of claim 1 or 2.
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