The information in this profile may be out-of-date.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 for products containing this compound include Apl-Luster, Arbotect, Mertect, Mycozol, TBZ, Tecto, and Thibenzole. The product is often used in combination with other fungicides and insecticides.

Regulatory Status: Thiabendazole is a General Use Pesticide (GUP). It is in EPA toxicity class III - slightly toxic, and products containing it carry the Signal Word CAUTION on the label.

Chemical Class: benzimidazole

Introduction: Thiabendazole is a systemic benzimidazole fungicide used to control fruit and vegetable diseases such as mold, rot, blight, and stain. It is also active against storage diseases and Dutch Elm disease. In livestock and humans, thiabendazole is applied to treat several helminth species such as roundworms. Thiabendazole is also used medicinally as a chelating agent to bind metals. It is available as a wettable powder, suspension concentrate, flowable concentrate, and liquid.

Formulation: It is available as a wettable powder, suspension concentrate, flowable concentrate, and liquid.

Toxicological Effects:

Ecological Effects:

Environmental Fate:

Physical Properties:

Exposure Guidelines:

Basic Manufacturer:

Merck Agvet
Division of Merck & Co., Inc.
P.O. Box 2000
Rahway, NJ 07065-0912


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.