Pesticide
Product Reference
Reference data for fungicides, herbicides, insecticides, and nematicides used in published TPMR efficacy trials. Always read the current product label before use.
Product Type
Fungicide
Disease control
Reference Data Only — Always Read the Current Product Label Before Use
Information on this page is provided for general reference purposes and may not reflect the most current label, registration status, approved use sites, application rates, or restrictions for your state or region. Pesticide registrations, use patterns, and label language are subject to change without notice. It is the applicator's legal responsibility to read and follow the current product label in its entirety prior to each use. TPMR assumes no liability for errors, omissions, or decisions made based on this reference data.
Daconil Ultrex
Chlorothalonil 82.5% · Water Dispersible Granule (WDG)
Manufactured by Syngenta · EPA Reg. No. 100-796
Chlorothalonil
Chloronitrile
12 hours
WARNING
Mode of Action
Multi-site Contact
Reacts with thiol groups on amino acids and key metabolic enzymes within fungal cells, disrupting respiration, germination, and spore production at multiple biochemical sites simultaneously. Resistance requires simultaneous mutations at multiple target sites, making resistance risk very low.
Labeled Disease Targets
Application
Rate Range
3.2 – 4.0
oz / 1,000 sq ft
Interval
7 – 14 days
days between applications
Resistance Management
No documented resistance to chlorothalonil in turfgrass pathogens. Rotate with fungicides from different FRAC groups as part of an integrated program.
TPMR Reports Using This Product
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