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
Herbicide
Weed management
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.
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Sulfentrazone 4.0% · Suspension Concentrate (SC)
Manufactured by FMC · EPA Reg. No. 279-3305
Sulfentrazone
Triazolinone
12 hours
CAUTION
Mode of Action
PPO Inhibitor
Sulfentrazone inhibits protoporphyrinogen oxidase (PPO/Protox), an enzyme in the chlorophyll and heme biosynthesis pathway. Inhibition causes accumulation of protoporphyrin IX, which in the presence of light and oxygen generates reactive oxygen species that destroy cell membranes, causing rapid bleaching and tissue death.
Labeled Weed Targets
Application
Rate Range
0.5 – 2.0
fl oz / 1,000 sq ft
Interval
4 – 8 weeks between applications
days between applications
Resistance Management
Low resistance risk. No confirmed PPO-inhibitor resistant sedge populations in turfgrass. Resistance is theoretically possible — rotate with HRAC Group 2 herbicides (e.g., sulfosulfuron) for nutsedge programs.
TPMR Reports Using This Product
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