Disease threats can arise from many sources in greenhouse and nursery production. From foliar diseases like Botrytis and powdery mildew, to crown and stem diseases like Fusarium and Rhizoctonia, growers often face multiple challenges throughout a crop cycle. Effective disease management requires a program built with complementary solutions and multiple modes of action that can help protect plant health from propagation to finish. 

The Syngenta portfolio of fungicides provides a variety of solutions that can be rotated to help mitigate resistance and control challenging diseases. With products labeled for foliar, stem, crown and root diseases, growers can build programs tailored to their operation and disease pressure.

Mural^® fungicide is a versatile solution for broad-spectrum disease control in greenhouse and nursery production. Powered by azoxystrobin and an advanced-generation SDHI (FRAC Groups 7 and 11), Mural helps protect ornamental plants from the widest range of root and foliar diseases at low use rates. It helps prevent and control more than 50 ornamental diseases, including Botrytis, leaf spots, powdery mildew and soilborne diseases such as Rhizoctonia and Pythium. 

Postiva™ fungicide provides long-lasting protection against some of the most challenging ornamental diseases. Powered by ADEPIDYN^® technology and difenoconazole, Postiva delivers reliable control of diseases such as Fusarium, leaf spots, Botrytis and powdery mildew while also suppressing bacterial diseases caused by Pseudomonas spp. and Xanthomonas spp. With two modes of action in FRAC Groups 7 and 3, Postiva is an excellent rotation partner for comprehensive disease management programs. 

Trefinti^® nematicide/fungicide is one of the latest additions to the Syngenta ornamental portfolio. Powered by TYMIRIUM^® technology in FRAC Group 7 and IRAC Group N-3, Trefinti is a systemic solution for preventing and controlling foliar and root-feeding nematodes as well as certain disease-causing pathogens, including Fusarium and powdery mildew. Following drench applications, Trefinti is absorbed by roots and translocated throughout the upper canopy, helping protect crops from the roots up. It also helps improve root and plant health, giving growers another tool for protecting high-value ornamental crops from visible and hidden threats. 
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Source: USVB0F1152024 – Syngenta, Baggio, Florida, 2024, Cyclamen cv. ‘Halios HD Neon Rose.’

Building an effective disease management program starts with understanding how complementary products work together. By selecting fungicides that target specific disease pressures and rotating different modes of action, growers can support plant health, crop quality and long-term product performance. 

To explore the full Syngenta ornamental fungicide guide, visit GreenCastOnline.com/FungicideGuide. 


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© 2026 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. ADEPIDYN^®, GreenCast^®, Mural^®, Postiva™, Trefinti^®, TYMIRIUM^® and the Syngenta logo are trademarks of a Syngenta Group Company.