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PPE—Personal Protective Equipment (gloves, apron, eye safety <br /> glasses, etc.). The required PPE for a specific compound is listed <br /> under the "Hazards to Humans" section on the label. Always use <br /> protective equipment specified on the label. The most serious risk <br /> of exposure from chemicals is during handling and mixing <br /> operations with the concentrated product. <br /> Re-entry interval - Period of time immediately after a pesticide <br /> application when agricultural employees may not enter a pesticide <br /> treated area without protective clothing. <br /> RUP—Restricted Use Pesticide. The "Restricted Use" <br /> classification restricts the purchase of a product, and its uses, to a <br /> licensed commercial, private, or public applicator. <br /> Landowners wishing to purchase and apply restricted use <br /> pesticides can obtain a Private Applicator's License through <br /> the Colorado Department of Agriculture. Information is <br /> available at 303-239-4186 or at: <br /> http://www.colorado.L,ov/cs/Satellite/A2riculture- <br /> Main/CDAG/1178305424099 <br /> Signal Words —Indicate the toxicity and/or hazards associated <br /> with the use of the pesticide. Pre-mix herbicides will always have <br /> the highest toxicity level of the mixed active ingredients. <br /> - Caution—Category 3 or 4, least toxic. 1 ounce to 1 <br /> pint swallowed lethal to an adult. <br /> - Warning— Category 2. 1 —3 teaspoons swallowed <br /> lethal to an adult. <br /> - Danger/Poison- A Category 1, most toxic. 1-3 <br /> drops swallowed lethal to an adult. <br /> Toxicity—Measured by LD50 (lethal dose, 50%), describes the <br /> dose of a pesticide that will kill '/z of a group of test animals from a <br /> single dose. A pesticide with a lower LD50 is more toxic than one <br /> with a higher number because it takes less of the pesticide to kill <br /> half of the test animals. <br /> To obtain more comprehensive information regarding Colorado <br /> and Federal pesticide laws and regulation, and an overview of the <br /> CSU Pesticide Safety Education Program, see: <br /> www.colostate.edu/Depts/SoilCrop/extension/CEPEP <br />