Active substances for crop protection, compositions and methods of production and use thereof

By synthesizing pyrrolidine compounds containing sulfonamide structures and combining them with methyl eugenol, the problem of poor control of agricultural crop diseases and pests in existing technologies has been solved, achieving highly efficient attraction and killing of plant pathogens and pests, which is suitable for the development of green agriculture.

CN122102997APending Publication Date: 2026-05-29GUIZHOU IND VOCATIONAL & TECH COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUIZHOU IND VOCATIONAL & TECH COLLEGE
Filing Date
2026-01-22
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing chemical control methods are not very effective in controlling crop diseases and pests, and are prone to leading to increased resistance, pesticide residues, and environmental risks, making it difficult to meet the requirements of green agricultural development.

Method used

A pyrrolidine compound containing a sulfonamide structure was designed and synthesized, and then compounded with methyl eugenol to prepare fungicides and insecticides. By simulating the female insect sex pheromone to attract male insects, and combining the antibacterial activity of the sulfonamide compound, a highly efficient trapping and killing of plant pathogens and pests can be achieved.

Benefits of technology

It significantly improved the inhibitory activity against rice bacterial blight and kiwifruit bacterial canker, and enhanced the mortality rate of oriental fruit fly, providing a highly efficient, low-toxicity, and environmentally friendly control solution.

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Abstract

The application discloses a kind of active substances for crop protection and its composition and preparation method and application, the substance general formula as follows: Wherein: R1 It is hydrogen atom, halogen, cyano, methyl, methoxy, nitro, trifluoromethyl or the disubstituted of arbitrary combination of above halogen;R2 It is hydrogen atom, halogen or nitro substitution.This application derivative shows better inhibitory effect to rice bacterial leaf spot, rice bacterial leaf blight, kiwi bacterial canker, citrus canker.The inhibitory activity of compound II-18 to kiwi bacterial canker bacteria is best.Plant pathogenic fungi (sclerotinia sclerotiorum, phomopsis viticola, botryosphaeria dothidea and fusarium graminearum) inhibitory activity test shows that compound II-10 shows better inhibitory activity to fusarium graminearum.In addition, part of the derivatives of the application has significant contact toxicity to bactrocera dorsalis (Hendel).The composition of compound II-5 and methyl eugenol shows synergistic trapping effect in the process of preventing and treating the main pest of kiwi, bactrocera dorsalis (Hendel).
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