The information in this profile may be out-of-date.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: Diflubenzuron is sold under the trade name Dimilin. Other trade names inlcude DU112307, ENT-29054, Micromite, and OMS-1804.

Regulatory Status: Some formulations of diflubenzuron may be classified as Restricted Use Pesticides (RUPs) in the U.S. RUPs may be purchased and used only by certified applicators. Diflubenzuron is classified as toxicity class III - slightly toxic. Products containing it bear the Signal Word CAUTION.

Chemical Class: benzoylphenylurea

Introduction: Diflubenzuron is a benzoylphenyl urea used on forest and field crops to selectively control insects and parasites. Principal target insect species are the gypsy moth, forest tent caterpiller, several evergreen eating moths, and the boll weevil. It is also used as a larvae control chemical in mushroom operations and animal houses. Diflubenzuron is a stomach and contact poison. It acts by inhibiting the production of chitin, a compound that makes the outer covering of the insect hard and thus interferes with the formation of the insect's cuticle or shell. It is available as a suspension concentrate, wettable powder, or in granules.

Formulation: It is available as a suspension concentrate, wettable powder, or in granules.

Toxicological Effects:

Ecological Effects:

Environmental Fate:

Physical Properties:

Exposure Guidelines:

Basic Manufacturer:

Uniroyal Chemical Co., Inc.
Benson Road
Middlebury, CT 06749


References for the information in this PIP can be found in Reference List Number 9

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.