Application of ursolic acid lactone in prevention and treatment of spodoptera exigua

By using ursolic acid lactone sprayed on crops, the problem of beet armyworm resistance to chemical pesticides was solved, achieving the goal of preventing beet armyworm from feeding and inhibiting its growth, resulting in a green and environmentally friendly control effect.

CN121465023BActive Publication Date: 2026-05-12SOUTHWEST FORESTRY UNIVERSITY
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Patent Information

Application Number
CN202610027270.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-09
Publication Date
2026-05-12
Estimated Expiration
2046-01-09

AI Technical Summary

Technical Problem

In existing technologies, beet armyworm has developed resistance to chemical pesticides, leading to a decline in control effectiveness. Furthermore, the use of chemical pesticides pollutes the environment, necessitating the search for green control technologies.

Method used

Ursolic acid lactone was used as the component for controlling beet armyworm. By spraying it on crops, it achieved the effects of preventing beet armyworm from feeding and restricting its growth and development. The concentration of 0.015 mg/mL showed a significant inhibitory effect.

Benefits of technology

Ursolic acid lactone exhibits good antifeedant effects at low concentrations and produces a sustained sublethal effect on beet armyworm at high concentrations, limiting its growth and development. Moreover, it is a plant-derived ingredient, making it green and safe.

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Abstract

The application provides application of ursolic acid lactone in prevention and treatment of Spodoptera exigua, and relates to the technical field of pest control. The ursolic acid lactone can produce significant antifeedant effect on Spodoptera exigua at a certain concentration, can inhibit the growth of Spodoptera exigua larvae to a certain extent, and can even cause the death of Spodoptera exigua larvae, and can be used as a new Spodoptera exigua control agent. The present application overcomes the shortcomings of the prior art, and the plant source extract component, i.e. ursolic acid lactone, can effectively control Spodoptera exigua, and the component is green and safe, reduces environmental pollution, and has a good prospect in the development of Spodoptera exigua control agents.
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