Reference data for fungicides, herbicides, insecticides, and nematicides used in published TPMR efficacy trials. Always read the current product label before use.
Product Type
Insecticide
Insect & arthropod 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.
Trichlorfon 6.2% · Granular (G)
Manufactured by Envu (formerly Bayer) · EPA Reg. No. 264-333
Trichlorfon
Organophosphate
24 hours
WARNING
Acetylcholinesterase Inhibitor
Trichlorfon irreversibly inhibits acetylcholinesterase (AChE), the enzyme responsible for breaking down the neurotransmitter acetylcholine in insect synapses. Inhibition causes acetylcholine accumulation at nerve junctions, leading to continuous nerve stimulation, overstimulation of muscles and glands, convulsions, and death. Trichlorfon undergoes in vivo conversion to dichlorvos (DDVP), which contributes to its activity.
Rate Range
3.0 – 6.0
lb / 1,000 sq ft
Interval
Repeat in 7–14 days if needed
days between applications
Medium resistance risk. Organophosphate resistance via esterase-based detoxification is well documented in many insects. Trichlorfon is best used as a curative rescue treatment rather than a primary preventive program.
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