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A kind of sex attractant for preventing oriental armyworm and its application

An attractant and armyworm technology, which is applied in the field of dynamic monitoring of insect populations and green control, can solve the problems of increasing difficulty in forecasting, difficulty in dynamic monitoring of populations, etc. Effect

Active Publication Date: 2020-10-13
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The long-distance migratory flight habits of armyworms make it difficult to monitor their population dynamics and make predictions more difficult.

Method used

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  • A kind of sex attractant for preventing oriental armyworm and its application
  • A kind of sex attractant for preventing oriental armyworm and its application
  • A kind of sex attractant for preventing oriental armyworm and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: lure core preparation:

[0022] (1) The lure carrier adopts a cylindrical green concave rubber plug, purchased from Beijing Zhongjie Sifang Technology Co., Ltd.

[0023] (2) Dilute the sex pheromone components cis-11-hexadecenal, cis-11-hexadecenyl acetate and cis-9-hexadecenal with n-hexane to a concentration of 1 μg / μL The solution.

[0024] (3) Absorb different volumes of the above-mentioned armyworm pheromone solution components and add them to the bottom of the rubber head, and the pheromone solution will penetrate into the inside of the rubber along with the solvent (n-hexane).

[0025] (4) After the solution containing the sex pheromone volatilizes, add 100 μL of n-hexane solvent dropwise to each lure, and after the solvent volatilizes, the lures of the armyworm-attractant can be prepared.

[0026] In order to further illustrate the feasibility of the present embodiment, 8 specific formulas are provided in table 1:

[0027] Among them, formulas 1...

Embodiment 2

[0030] Embodiment 2: Field trapping test

[0031] Select plots with more serious armyworm larvae in the previous generation, and the trap type is a barrel trap (see figure 1 , figure 2 Shown) (5% washing powder aqueous solution is housed in the bucket, effect is to dissolve the scale that the moth wing surface has certain waterproof function, prevents the moth from entering the bucket from escaping again), the average spacing between traps is about 20m. 4 replicates were set for each of the above mixed lure treatments. At the same time, randomly place 4 blank barrel traps. The trapping quantity of each trap was recorded every three days, and the position was randomly exchanged between different treatment groups after the insects were fished out in each investigation, so as to eliminate the experimental error caused by the position effect, and the observation was continued for 30 days. The test results are shown in Table 2:

[0032] Table 2

[0033]

[0034] As can be ...

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Abstract

The invention discloses a sex attractant for controlling mythimna separata and application thereof. A medicinal component of the sex attractant for controlling the mythimna separata comprises cis-11-hexadecenal and cis-11-hexadecene acetate according to a weight ratio of 96:4, and further comprises cis-9-hexadecenal, wherein the weight ratio of components of the cis-11-hexadecenal, the cis-11-hexadecene acetate and the cis-9-hexadecenal in the medicinal component is 96:4:(0.5-5). The sex attractant can be applied to dynamic monitoring and control of a mythimna separata population; by such a monitoring method, the nature of a migratory insect source can be clearly determined; the monitoring method has the superiority that cannot be achieved by other monitoring methods; during application tothe control, the using amount of a chemical pesticide can be saved, natural enemies are not killed, the environment is not polluted, the ecological balance is not destroyed, and promotion of sustainable control of the mythimna separata in China is facilitated.

Description

technical field [0001] The invention belongs to the technical field of insect population dynamic monitoring and green prevention and control. In particular, it relates to an attractant for preventing and controlling adults of the oriental armyworm Mythimna separata (Walker). Background technique [0002] The oriental armyworm Mythimna separata is a typical long-distance migratory pest (hereinafter referred to as armyworm), and it is also a major biological disaster that seriously threatens the production safety of my country's three major staple foods, corn, wheat and rice. It has a wide range of occurrence and many generations of damage. There are 4-5 large-scale migratory hazards in my country every year, and it can cause extinction of production and harvest in severe cases. In ancient times, armyworms were called "divine insects", and when they broke out, there was a tragic situation of "the food and crops were exhausted, and the rice was worth a thousand dollars". From...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/02A01N35/02A01P19/00A01M1/02
CPCA01M1/02A01N35/02A01N37/02
Inventor 江幸福蒋世雄张蕾程云霞
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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