Fungicidal compositions containing mancozeb, tebuconazole and difenoconazole, processes for their preparation and use

By combining mancozeb, tebuconazole, and difenoconazole, dry suspensions and dispersible oil suspensions are formed, solving the problem of drug resistance caused by single fungicides and achieving efficient control of various crop diseases and environmentally friendly fungicide effects.

CN119791127BActive Publication Date: 2026-04-14SHANDONG WEIFANG RAINBOW CHEMICAL CO LTD
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Patent Information

Application Number
CN202411974694.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-04-14
Estimated Expiration
2044-12-30

AI Technical Summary

Technical Problem

The long-term use of a single fungicide leads to the development of drug resistance in diseases, resulting in increased dosage, reduced efficacy, and shorter duration of effectiveness, which is detrimental to sustainable environmental development.

Method used

By combining mancozeb, tebuconazole, and difenoconazole, the optimal synergistic ratio was determined to form dry suspension and dispersible oil suspension, thereby broadening the bactericidal spectrum and improving the bactericidal efficiency.

Benefits of technology

It exhibits significant synergistic effects in rice, soybeans, wheat, peanuts, corn, cotton, sunflowers, vegetables, and fruit trees. In particular, it has excellent control effects on rust, sheath blight, anthracnose, leaf blight, target spot, brown spot, and powdery mildew, avoiding disease resistance, extending the duration of drug efficacy, and contributing to sustainable environmental development.

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Abstract

The application discloses a fungicidal composition containing manganese edathamil-zinc, tebuconazole and difenoconazole as well as a preparation method and application thereof, relates to the field of pesticides, and includes the following as fungicidal effective components: manganese edathamil-zinc, tebuconazole and difenoconazole, wherein the weight ratio of the manganese edathamil-zinc, tebuconazole and difenoconazole is (0.1-99):(0.1-30):1. The application compounding the active ingredients of the drugs, namely the manganese edathamil-zinc, tebuconazole and difenoconazole, the three components do not produce mutual contradiction, the fungicidal spectrum is enlarged, the fungicidal efficiency is improved, obvious synergistic effect is shown, and the diseases in rice, soybean, wheat, peanut, corn, cotton, sunflower, vegetables and fruit trees can be prevented and treated, especially the diseases such as rust, sheath blight, anthracnose, leaf blight, target spot, brown spot and powdery mildew.
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