The information in this profile may be out-of-date.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.





E X T O X N E T

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


Coumaphos


Trade and Other Names: Trade names include Agridip, Asunthol, Bay 21, Baymix, Co-Ral, Dilice, Meldame, Muscatox, Negashunt, Resistox, Suntol, and Umbethion.

Regulatory Status: The U.S. Environmental Protection Agency (EPA) classifies most formulations of coumaphos as General Use Pesticides (GUPs). The formulations 11.6% EC and 42% flowable concentrate end-use products have been classified as Restricted Use Pesticides (RUPs) because they pose a hazard of acute poisoning from ingestion. RUPs may be purchased and used only by certified applicators. Coumaphos is classified as toxicity class II - moderately toxic. Products containing coumaphos bear the Signal Word WARNING.

Chemical Class: organophosphate

Introduction: Coumaphos is an organophosphate insecticide used for control of a wide variety of livestock insects, including cattle grubs, screw worms, lice, scabies, flies, and ticks. It is used against ectoparasites, which are insects that live on the outside of host animals such as sheep, goats, horses, pigs, and poultry. It is added to cattle and poultry feed to control the development of fly larvae that breed in manure. It is also used as a dust, dip, or spray to control mange, horn flies, and face flies of cattle. Because of its low toxicity to fish, it is also used in water as an agent to control mosquito larvae. Coumaphos is considered a selective insecticide because it kills specific insect species while sparing other non-target organisms.

Formulation: It is added to catte and poultry feed to control the development of fly larvae that breed in manure. It is also used as a dust, dip, or spray to control mange, horn flies, and face flies of cattle. Because of its low toxicity to fish, it is also used in water as an agent to control mosquito larvae.

Toxicological Effects:

Ecological Effects:

Environmental Fate:

Physical Properties:

Exposure Guidelines:

Basic Manufacturer:

Bayer Corporation
Animal Health
Box 390
Shawnee Mission, KS 66201

References:

References for the information in this PIP can be found in Reference List Number 5




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.