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E:XTOXNET PIP-SIMALINE littp://ace.orst.edL[/cei-bin/inl's/01/pips/sima7.ine.htun <br /> EXTOXNET <br /> Extension Toxicology Network <br /> Pesticide Information Profiles <br /> A Pesticide Information Project of Cooperative Extension Offices of Cornell University, Oregon State <br /> University, the University of Idaho, and the University of California at Davis and the Institute for <br /> Environmental Toxicology, Michigan State University. Major support and funding was provided by the <br /> USDA/Extension Service/National Agricultural Pesticide Impact Assessment Program. <br /> EXTOXNET primary files maintained and archived at Oregon State University <br /> Revised June 1996 <br /> Simazine <br /> Trade and Other Names: Trade names include Aquazine, Caliber, Cekusan, Cekusima, Framed, <br /> Gesatop, Primatol S, Princep, Simadex, Simanex, Sim-Trol, Tanzine and Totazine. This compound may <br /> also be found in formulations with other herbicides such as amitrole, paraquat dichloride, metolachlor, <br /> and atrazine. <br /> Regulatory Status: Simazine is a General Use Pesticide (GUP). It is in EPA toxicity class IV - <br /> practically nontoxic. Products containing simazine bear the Signal Word CAUTION. In November 1994, <br /> the U.S. EPA began a Special Review of simazine which could result in use restrictions or even <br /> cancellation if data warrant such action. <br /> Chemical Class: Triazine <br /> Introduction: Simazine is a selective triazine herbicide. It is used to control broad-leaved weeds and <br /> annual grasses in field, berry fruit, nuts, vegetable and ornamental crops, turfgrass, orchards, and <br /> vineyards. At higher rates, it is used for nonselective weed control in industrial areas. Before 1992, <br /> simazine was used to control submerged weeds and algae in large aquariums, farm ponds, fish <br /> hatcheries, swimming pools, ornamental ponds, and cooling towers. Simazine is available in wettable <br /> powder, water dispersible granule, liquid, and granular formulations. It may be soil-applied. <br /> Formulation: Simazine is available in wettable powder, water dispersible granule, liquid and <br /> granular formulations. It may be soil-applied. <br /> Toxicological Effects: <br /> • Acute toxicity: Simazine is slightly to practically nontoxic. The reported oral LD50 for technical <br /> I of 5/11/004:11 PM <br />