The information in this profile may be out-of-date. It was last revised in 1996. EXTOXNET no longer updates this information, but it may be useful as a reference or resource.

Please visit the National Pesticide Information Center (NPIC) to find updated pesticide fact sheets. If you don't find a fact sheet related to your question, feel free to call 1-800-858-7378. NPIC is open five days a week from 8:00am to 12:00pm Pacific Time.


Extension Toxicology Network

Pesticide Information Profiles

A Pesticide Information Project of Cooperative Extension Offices of Cornell University, Oregon State University, the University of Idaho, and the University of California at Davis and the Institute for Environmental Toxicology, Michigan State University. Major support and funding was provided by the USDA/Extension Service/National Agricultural Pesticide Impact Assessment Program.

EXTOXNET primary files maintained and archived at Oregon State University

Revised June 1996


Trade and Other Names: Trade names include Compound 732, DuPont Herbicide 732, Geonter, and Sinbar. This compound may also be found in mixed formulations with other herbicides.

Regulatory Status: Terbacil is registered by the U.S. Environmental Protection Agency (EPA) as a General Use Pesticide (GUP). The Signal Word CAUTION is required on containers of formulated terbacil. Terbacil is in EPA class IV - practically nontoxic.

Chemical Class: substituted uracil

Introduction: Terbacil is a selective herbicide used for control of both annual grasses, broad-leaved weeds, and some perennial weeds in sugarcane, apples, alfalfa, peaches, pecans, and mints. It is sprayed on soil surfaces preferably just before, or during, the period of active weed growth. Terbacil works in plants by inhibiting photosynthesis. It is a member of the substituted uracil chemical family. Terbacil is available in wettable powder formulations. Technical terbacil is 95% pure active material.

Formulation: Terbacil is available in wettable powder formulations. Technical terbacil is 95% pure active material.

Toxicological Effects:

Ecological Effects:

Environmental Fate:

Physical Properties:

Exposure Guidelines:

Basic Manufacturer:

DuPont Agricultural Products
Walker's Mill, Barley Mill Plaza
P.O. Box 8003
Wilmington, DE 19880-0038


References for the information in this PIP can be found in Reference List Number 10

DISCLAIMER: The information in this profile does not in any way replace or supersede the information on the pesticide product labeling or other regulatory requirements. Please refer to the pesticide product labeling.