CN109042653B - Sex attractant for preventing and controlling oriental armyworm and application thereof - Google Patents
Sex attractant for preventing and controlling oriental armyworm and application thereof Download PDFInfo
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- CN109042653B CN109042653B CN201811121237.XA CN201811121237A CN109042653B CN 109042653 B CN109042653 B CN 109042653B CN 201811121237 A CN201811121237 A CN 201811121237A CN 109042653 B CN109042653 B CN 109042653B
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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
- 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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Abstract
The invention discloses a sex attractant for preventing and controlling oriental armyworms and application thereof. The oriental armyworm sex attractant comprises the following medicinal components in parts by weight: cis-11-hexadecenal: cis-11-hexadecene acetate 96: 4; the active ingredients also comprise cis-9-hexadecenal, and the active ingredients comprise the following components in percentage by weight: cis-11-hexadecenal: cis-11-hexadecene acetate: cis-9-hexadecenal 96:4: (0.5-5). The method can be applied to dynamic monitoring and control of oriental armyworm population, can definitely judge the source property of migratory flying armyworm, has incomparable advantages compared with other monitoring methods, can save the using amount of chemical pesticides when being applied to control, does not kill natural enemies, does not pollute the environment, does not destroy ecological balance, and is beneficial to promoting the sustainable treatment of oriental armyworm in China.
Description
Technical Field
The invention belongs to the technical field of insect population dynamic monitoring and green prevention and control. In particular to an attractant for preventing and controlling oriental armyworm Mythimna separata (Walker) imago.
Background
The oriental armyworm Mythimna separata is a typical long-distance migratory flying pest (hereinafter called armyworm) and is also a major biological disaster seriously threatening the production safety of three staple grains of corn, wheat and rice in China. The method has wide occurrence range and more harmful generations, has 4-5 times of migration damage in a large range in China every year, and can cause the failure of production and harvest in severe cases. Ancient armyworms are called deinsectization, and the tragic state of 'almost completely eating crops and fighting thousands of money' appears in the large occurrence. In 1950-1989, 17 years of outbreak and disaster formation of armyworms occur, the integrated disaster area is 7191 ten thousand hectares, and the grain loss exceeds 1643 thousand tons. In recent years, armyworm damage is aggravated, which continuously occurs nationwide in 2012 and 2013, and the occurrence area is large, the population density is high, the loss is heavy, and the history is rare. In 2012, the disaster area of northeast and northeast China reaches 1 hundred million mu times, and the loss exceeds 30 hundred million yuan. The disaster area of Jingjin Ji exceeds 3000 mu. In order to reduce the loss of armyworm and realize grain deprivation by worms, a large amount of chemical control materials are applied to the field, and the healthy development of modern agriculture is seriously influenced. In 2015, the second generation and the third generation armyworms still outbreak in local areas of northeast and north China.
The behavior of the armyworm for 'no shadow and no trace' long-distance migration leads to difficulty in monitoring the population dynamics and increasing the prediction difficulty. Therefore, the research and development of the high-efficiency, convenient and environment-compatible early insect situation monitoring, early warning and treatment technology becomes a scientific problem to be solved urgently for preventing and controlling the outbreak and the disaster of armyworm in China, and is also an important means for realizing the healthy development of modern agriculture. The sex pheromone is used for monitoring pest situation and trapping pests in a large area, so that the sex pheromone has the advantages of strong specificity, good environmental compatibility and simplicity and convenience in use, target pests can be specifically monitored under the condition of low pest density, and early warning of pests is realized (Howse et al, 1998), and the technology is particularly important in comprehensive treatment of fulminant and migratory armyworms.
The prior domestic literature reports that the formula of the armyworm sex pheromone comprises the following components: (1) binary component Z11-16: Ald/Z11-16: Ac 900/100 μ g (bang et al, 1985); (2) ternary formulation Z11-16: Ald/Z11-16: OH ═ 34:18:1 (total dose 100 μ g) (sonasia ru et al, 2017). In order to promote the development of the armyworm population dynamic monitoring and sex attractant control technology, realize the early warning and green control of armyworms, optimize the compositions and the proportion of the core-luring formula and open up a new sustainable management way for monitoring and controlling armyworms by utilizing sex pheromone.
Disclosure of Invention
The invention aims to provide a mythimna separata sex attractant, and provides a green pollution-free monitoring and control technology for realizing mythimna separata treatment.
Based on the purpose, the oriental armyworm sex attractant provided by the invention comprises the following medicinal components in parts by weight:
cis-11-hexadecenal: cis-11-hexadecene acetate 96: 4.
The oriental armyworm sex attractant also comprises cis-9-hexadecadienal, and the medicinal components and the weight ratio thereof are as follows:
cis-11-hexadecenal: cis-11-hexadecene acetate: cis-9-hexadecenal 96:4: (0.5-5).
Optimally, the weight ratio of the components of the oriental armyworm sex attractant is cis-11-hexadecene aldehyde, and the mass ratio of the cis-11-hexadecene acetate to the cis-9-hexadecene aldehyde is 96:4: 0.5.
The oriental armyworm sex attractant consists of a medicinal effect component and a solvent, wherein the solvent is n-hexane.
The oriental armyworm sex attractant is a normal hexane solution with the concentration of 1 mu g/mu L.
The oriental armyworm sex attractant is applied to trapping oriental armyworms.
The application is that the oriental armyworm sex attractant is added into the concave rubber stopper to prepare an attracting core, the effective component contained in a single attracting core is 1000-.
The cis-11-hexadecene aldehyde, cis-11-hexadecene acetate and cis-9-hexadecene aldehyde were purchased from Sigma-Aldrich. Cis-11-hexadecene acetate is also known as cis-11-hexadecene-1-ol acetate, CASNO 34010-21-4.
The oriental armyworm sex attractant firstly optimizes a binary formula, and experiments show that cis-11-hexadecenal: the proportion of cis-11-hexadecene acetate is not obviously regular, and the trapping effect is greatly improved in 96:4 compared with the trapping effect of the prior published proportion of 9: 1; cis-9-hexadecene aldehyde has no attraction effect on oriental armyworms, but when 0.5-5 mu g of cis-9-hexadecene aldehyde is added into the binary formula, a synergistic effect is generated, the attraction capability of the invention on the oriental armyworms is further improved, and the trapping performance is improved.
The invention has the following beneficial effects: the armyworm sex attractant provided by the invention is simple to prepare and easily available in raw materials; has strong trapping ability, good stability and long lasting period; can obviously improve the prediction level of the armyworm and has important significance for early warning and comprehensive prevention and control of the armyworm.
Drawings
Figure 1 field attraction effect of a mythimna separata sex attractant on adults,
FIG. 2 is a field installation view of a bucket type trap made of a mythimna separata sex attractant.
The specific implementation mode is as follows:
the following examples are further illustrative of the present invention and are not intended to be limiting thereof.
Example 1: preparing a lure:
(1) the lure carrier was a cylindrical green concave rubber stopper purchased from beijing zhongjie seft technologies ltd.
(2) Diluting the armyworm sex pheromone components of cis-11-hexadecenal, cis-11-hexadecene acetate and cis-9-hexadecenal with n-hexane to obtain a solution with a concentration of 1 μ g/μ L.
(3) Sucking the components of the mythimna separata sex pheromone solution with different volumes and adding the components to the bottom of the rubber head, wherein the pheromone solution can permeate into the rubber along with the solvent (normal hexane).
(4) After the solution containing the sex pheromone is volatilized, 100 mu L of n-hexane solvent is dripped into each lure, and the lure of the sex attractant for the armyworm can be prepared after the solvent is volatilized.
To further illustrate the feasibility of this example, 8 specific formulations are given in table 1:
wherein, the formulas 1, 2 and 3 are single-component formulas of cis-11-hexadecene aldehyde, cis-11-hexadecene acetate and cis-9-hexadecene aldehyde respectively; the formula 4 is a domestic binary component formula; the formula 5 is a domestic ternary component formula; the rest are the newly given formula.
TABLE 1
Example 2: trapping test in field
Selecting a land with serious larvae of the previous generation armyworm, wherein the trap type is a barrel type trap (shown in figure 1 and figure 2) (5% washing powder water solution is filled in the barrel and is used for dissolving scales with certain waterproof function on the surface of moth wings and preventing the moths from escaping again when entering the barrel), and the average distance between the traps is about 20 m. Each of the above mixed lure treatments was set to 4 replicates. 4 blank barrel traps were randomly placed at the same time. The trapping number of each trap is recorded every three days, the position of the trap is randomly exchanged among different treatment groups after the trap body is fished out in each investigation, so that the test error caused by the position effect is eliminated, and the trap is continuously observed for 30 days. The test results are shown in table 2:
TABLE 2
As can be seen from the results in Table 2, the formula of groups 6, 9 and 10 of the armyworm sex attractant provided by the invention is superior to the domestic binary formula and ternary formula, the total trapping amount and the average trapping amount are obviously higher than those of a lamplight trap and a blank trap, and the formula 9 (960 mu g of cis-11-hexadecene aldehyde, 40 mu g of cis-11-hexadecene acetate and 5 mu g of cis-9-hexadecene aldehyde) has the best effect.
Therefore, the armyworm sex attractant provided by the invention is simple to prepare and easy to obtain raw materials; the stability is good, the lasting period is long, and the control effect can be maintained for more than 30 days; the specificity is strong, and the armyworm cannot generate resistance; is harmless to human and livestock and environment-friendly; strong stress resistance and convenient use. The mythimna separata sex attractant provided by the invention can be accurately applied to mythimna separata situation prediction, a large amount of trapping and mating interference, and has important significance for comprehensively treating the mythimna separata.
The above disclosure is only for the 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 should fall within the scope of the present invention.
Claims (6)
1. The oriental armyworm sex attractant comprises the following medicinal components in parts by weight: cis-11-hexadecenal: cis-11-hexadecene acetate: cis-9-hexadecenal 96:4: (0.5-5).
2. The oriental armyworm sex attractant of claim 1, wherein the medicinal ingredients thereof consist of the following components in percentage by weight: is cis-11-hexadecene aldehyde, and the mass ratio of the cis-11-hexadecene acetate to the cis-9-hexadecene aldehyde is 96:4: 0.5.
3. The oriental armyworm sex attractant as claimed in any one of claims 1 to 2, which consists of a medicinal component and a solvent, wherein the solvent is n-hexane.
4. The oriental armyworm sex attractant of claim 3, wherein the concentration of the medicinal component is 1 μ g/μ L.
5. Use of the oriental armyworm sex attractant according to any one of claims 1 to 4 for trapping oriental armyworm.
6. The use as claimed in claim 5, wherein the oriental armyworm sex attractant disclosed in any one of claims 1 to 4 is added into a concave rubber stopper to form a lure core, the effective component contained in a single lure core is 1000-.
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| CN109769814B (en) * | 2019-01-31 | 2020-10-20 | 中国农业科学院植物保护研究所 | Oriental mythimna separata imago attractant based on plant volatile matter and application thereof |
| BR112022017874A2 (en) * | 2020-03-06 | 2023-01-17 | Univ North Carolina State | NEW SEX PHEROMONE COMPONENTS FOR THE SCRATCH CATERPILLAR, SPODOPTERA FRUGIPERDA |
| CN114052020B (en) * | 2021-11-19 | 2023-04-07 | 中捷四方生物科技股份有限公司 | Application of insect sex pheromone cis-11-hexadecene aldehyde analogue |
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Inventor after: Jiang Xingfu Inventor after: Jiang Shixiong Inventor after: Zhang Lei Inventor after: Cheng Yunxia Inventor before: Jiang Xingfu Inventor before: Jiang Shixiong Inventor before: Song Yaru Inventor before: Zhang Lei Inventor before: Cheng Yunxia |
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