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EXTOXNET PIP - COPPEA...,ULFATE 1.01 Page 1 of 4 EXTOXNET 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 Copper sulfate Trade and Other Names: Copper sulfate is also called Agritox, Basicap, BSC Copper Fungicide, CP Basic Sulfate and Tri-Basic Copper Sulfate. The pentahydrate form is called bluestone, blue vitriol, Salzburg vitriol, Roman vitriol, and blue copperas. Bordeaux Mixture is a combination of hydrated lime and copper sulfate. Copper sulfate is often found in combination with other pesticides. Regulatory Status: Copper sulfate is classified as a General Use Pesticide (GUP) by the U.S. Environmental Protection Agency (EPA). Copper sulfate is toxicity class I - highly toxic. It bears the Signal Word DANGER- POISON. Because of its potentially harmful effects on some endangered aquatic species, surface water use may require a permit in some places. Chemical Class: sulfate Introduction: Copper sulfate is a fungicide used to control bacterial and fungal diseases of fruit, vegetable, nut, and field crops. These diseases include mildew, leaf spots, blights, and apple scab. It is used as a protective fungicide (Bordeaux mixture) for leaf application and seed treatment. It is also used as an algacide and herbicide, and to kill slugs and snails in irrigation and municipal water treatment systems. It has been used to control dutch elm disease. It is available as a dust, wettable powder, or liquid concentrate. Formulation: It is available as a dust, wettable powder, or liquid concentrate. Toxicological Effects: • Acute toxicity: Copper sulfate is caustic and acute toxicity is largely due to this property [8]. There have been reports of human suicide resulting from the ingestion of gram quantities of this material [21]. The lowest dose of copper sulfate that has been toxic when ingested by humans is 11 mg/kg [22]. Ingestion of copper sulfate is often not toxic because vomiting is automatically htti)://extoxnet.orst.edu/pips/coppersu.htm 9/21/2004