Syngenta granted federal registration for Trefinti nematicide/fungicide in ornamental market

A new systemic solution powered by TYMIRIUM technology for prevention and control of foliar and root feeding nematodes for the ornamental market.

Syngenta announced today that Trefinti® nematicide/fungicide, powered by TYMIRIUM® technology, has been granted federal registration by the Environmental Protection Agency (EPA). State registrations are actively being pursued and are anticipated to be available soon. Trefinti will systemically control the key species of plant-parasitic nematodes and certain disease-causing pathogens that can damage plant roots and foliage, leading to decreased plant health. The mode of action in TYMIRIUM technology, a FRAC Group 7 and IRAC Group N-3 active ingredient, is absorbed by the roots and translocated throughout the upper canopy, providing control of foliar nematodes and certain diseases, including Fusarium spp., Powdery Mildew and others.

Fusarium Control in ‘Halios HD Neon Rose’ Cyclamen

Side by side comparison of halios HD neon roses dealing with fusarium pressure when untreated versus those treated with Trefinti Side by side comparison of halios HD neon roses dealing with fusarium pressure when untreated versus those treated with Trefinti
Source: USVB0F1152024 – Syngenta, Baggio, FL, 2024, Cyclamen cv. ‘Halios HD Neon Rose.’

 
“Nematodes are an often-overlooked pest that can cause significant damage to plant roots and foliage in high-value ornamental crops grown in the nursery and landscape,” said Nancy Rechcigl, field territory manager for ornamentals for Syngenta Professional Solutions. “Root-feeding nematodes primarily live in soil, feeding on the roots of woody and herbaceous ornamentals, while foliar nematodes mostly live and feed in leaves and buds, creating entry points for pathogens. Trefinti provides protection from the roots, targeting and controlling damaging nematodes to ensure overall plant health.” 

 
Root-knot Nematode Galling in 'Wizard Golden' Coleus

Bar chart showing root-knot nematode galling in wizard golden coleus when treated with Trefinti Bar chart showing root-knot nematode galling in wizard golden coleus when treated with Trefinti
Source: USVB0N1062023 – Syngenta, Baggio, FL, 2023, Coleus cv. ‘Wizard Golden.’

 
When applied preventively prior to developing symptoms, Trefinti provides high-level root-to-leaf protection against many foliar diseases, making ornamental crops more resilient to biotic and abiotic stress.

“Through continued investment in R&D, Trefinti is an advanced nematicide/fungicide labeled to address nematode feeding and associated pathogen pressure,” said Carson Cashwell, market manager for ornamentals for Syngenta Professional Solutions. “This latest solution from Syngenta, with product anticipated to be available to growers in December, supports our customers in protecting their bottom line from the hidden threat of nematodes, while also improving overall root and plant health.”

For trial data and more information about Trefinti, visit GreenCastOnline.com/ GreenCastOnline.com/TrefintiNematicide.

Media Contacts
Carson Cashwell
336-412-1666
carson.cashwell@syngenta.com

Lindsay Rusczak
919-896-2750
lrusczak@gscommunications.com

Web Resources
GreenCastOnline.com/Ornamentals
@SyngentaUS

About Syngenta
Syngenta continues to be a global leader in agricultural innovation with a presence in more than 100 countries. Syngenta Professional Solutions is focused on developing tomorrow’s technologies and practices that empower customers today to protect and enhance the places where people live, work and play, all while preserving our planet. Its bold scientific discoveries deliver better benefits for customers and society on a bigger scale than ever before. Guided by its Sustainability Priorities, Syngenta is developing new technologies and investing in digital solutions that help customers maintain beautiful landscapes and keep public spaces healthy. Syngenta Crop Protection is headquartered in Basel, Switzerland; Syngenta Seeds is headquartered in the United States. Follow us on, YouTube & X.

Cautionary Statement Regarding Forward-Looking Statements
This document may contain forward-looking statements, which can be identified by terminology such as ‘expect’, ‘would’, ‘will’, ‘potential’, ‘plans’, ‘prospects’, ‘estimated’, ‘aiming’, ‘on track’ and similar expressions. Such statements may be subject to risks and uncertainties that could cause the actual results to differ materially from these statements. For Syngenta, such risks and uncertainties include risks relating to legal proceedings, regulatory approvals, new product development, increasing competition, customer credit risk, general economic and market conditions, compliance and remediation, intellectual property rights, implementation of organizational changes, impairment of intangible assets, consumer perceptions of genetically modified crops and organisms or crop protection chemicals, climatic variations, fluctuations in exchange rates and/or commodity prices, single source supply arrangements, political uncertainty, natural disasters, and breaches of data security or other disruptions of information technology. Syngenta assumes no obligation to update forward-looking statements to reflect actual results, changed assumptions or other factors.

© 2025 Syngenta, 410 Swing Road, Greensboro, NC, 27409. 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. GreenCast®, Trefinti®, TYMIRIUM® and the Syngenta logo are trademarks of a Syngenta Group Company. All other trademarks are the property of their respective third-party owners.

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