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A kind of disorientation agent for interfering mating of Spodoptera frugiperda and its application

A technology of Spodoptera frugiperda and trapping agent, which is applied in the agricultural field, can solve the problems of unreasonable farmland pests and the inability of farmers to provide comprehensive guidance on safe and rational use of drugs, and achieve environmental and natural enemy safety, long-lasting effect, Sustained-release effect with noticeable effect

Active Publication Date: 2022-07-26
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main means of prevention and control of agricultural pests in my country is the control of chemical pesticides. Due to the large population of our country, it is impossible to provide comprehensive guidance on farmers' safe and rational use of pesticides. , ecology, agricultural product safety, and human and animal health issues

Method used

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  • A kind of disorientation agent for interfering mating of Spodoptera frugiperda and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The preparation of embodiment 1 migratory agent sustained-release device

[0014] Polyvinyl chloride capillary (length 20cm, inner diameter 1.5mm, wall thickness 0.5mm) was selected as the slow-release carrier, and chlorinated paraffin (CP 52) was selected as the solvent. Dissolve 10-20 mg of cis-8-dodecene acetate in chlorinated paraffin, mix evenly to prepare a mother liquor of a certain concentration, dispense a certain volume of the mother liquor into a capillary with a pipette, and heat-seal the capillary At both ends, a slow-release device for Spodoptera frugiperda fascination agent is prepared.

Embodiment 2

[0015] Example 2 Field determination of Spodoptera frugiperda fascination agent

[0016] From June 20 to September 25, 2020, a fascination experiment was conducted in a corn field in Mang City, Dezhou City, Yunnan Province. The area of ​​the experimental field is about 2,000 mu, which is divided into 5 plots, each plot is divided into a control zone and a stray zone, and the distance between each plot is not less than 1200m. The effective component of the orienting agent is 10-20 mg, and 10-50 orienting filaments are arranged per mu, and the orienting filaments are suspended at a place 10-20 cm higher than the corn. To further illustrate the fascination effect, the sex pheromone components of Spodoptera frugiperda were cis-9-tetradecene acetate, cis-11-hexadecene acetate, cis-7-dodecene Acetate was formulated in a ratio of 84:13:3 and dosed at 10mg, 15mg, 20mg.

[0017] Different doses, placement numbers and inhibition of mating rates are shown in the table below.

[0018] ...

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Abstract

The invention discloses an orienting agent for interfering with the mating of Spodoptera frugiperda and application thereof, and belongs to the technical field of agricultural pest Spodoptera frugiperda control. The Spodoptera frugiperda fascination agent component is cis-8-dodecene acetate, and its fascination effect is better than the Spodoptera frugiperda pheromone fascination product under the same dosage. In the fascination agent of the present invention, 10-20 mg of cis-8-dodecene acetate is dissolved in liquid chlorinated paraffin, and added into a polyvinyl chloride capillary (PVC), and 30-50 fasciculations are arranged per mu. Silk, the field duration is more than 3 months, and the rate of misorientation is more than 85%. The orienting agent of the invention can significantly interfere with the mating between males and females of Spodoptera frugiperda, is safe to the environment and natural enemies, has simple operation, can be used for controlling the pest in a large area, and is of great significance to the comprehensive management of Spodoptera frugiperda.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a deviatoric agent for interfering with the mating of Spodoptera frugiperda and application thereof. Background technique [0002] Spodoptera frugiperda is a member of the family Noctuidae, order Lepidoptera, native to tropical and subtropical America. Grasses are widely parasitic and have a mixed diet, especially grasses, such as corn, sorghum, wheat and other crops. Adults have strong reproductive ability, generally 5-6 generations per year, and female adults lay a high number of eggs, which can lay 900-1000 eggs in a lifetime! Some data show that Spodoptera frugiperda adults migrate and spread rapidly, with a maximum flight span of 1,600 kilometers. According to the data of the National Agricultural Technology Extension Service Center, up to now, the world's major migratory pest Spodoptera frugiperda has occurred in an area of ​​more than 60 million mu across the country...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/02A01P15/00C07C69/145
CPCA01N37/02C07C69/145
Inventor 宁君王留洋杨超霞骈起薇梅向东
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI