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Herbicide Reference Guide For Landowners <br />The purpose of this guide is to provide information helpful in <br />deciding which herbicide may be most appropriate for a small <br />acreage landowner. There is no intended endorsement of the <br />products listed, nor is discrimination intended towards any product <br />that may have been omitted. This guide is not intended to <br />substitute for a product label. Always read the label and keep in <br />mind "the label is the law." Colorado now requires a permit <br />called the National Pollutant Discharge Elimination System <br />(NPDES) through the Clean Water Act for applications in or <br />near water. Check with Colorado Department of Public <br />Health and Environment (CDPHE ) or the Weed District <br />before making any applications in or near water to insure <br />compliance. This book references instances where aquatic <br />herbicides are recommended, be sure of compliance with <br />NPDES before proceeding with these applications. The user of <br />any pesticide is liable for all aspects of handling the product, <br />including but not limited to mixing, Ioadipg, application, spill <br />control and disposal of pesticides or containers. <br />It is a violation of federal law to use any pesticide in a manner <br />inconsistent with its labeling, with the following four exemptions: <br />- Application at a rate or frequency less than specified on the <br />label. <br />- Application on a target species not specified on the label as <br />long as application is to the site or use specified on the label, <br />unless the label specifically prohibits use on that specific pest. <br />- Employing any method of application not prohibited on the <br />label. <br />- Mixing with a fertilizer, as long as such a mixture is not <br />prohibited on the labeling. <br />Acronyms and Definitions for Herbicide Reference <br />Surfactants - Surfactants are additives to a post emergent <br />herbicide spray solution that enhance activity and effectiveness of <br />the herbicide. Surfactants increase spray coverage and penetration <br />on leaf surfaces, and reduce evaporation rate, thereby increasing <br />the amount of an herbicide that translocates into a target plant. <br />