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PPE — Personal Protective Equipment (gloves, apron, eye safety <br />glasses, etc.). The required PPE for a specific compound is Iisted <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 />h ://mvw.colorado. ov/cs/Satellite/A riculture- <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 — Category I. most toxic. 1-3 <br />drops swallowed lethal to an adult, <br />Toxicity Measured by LDso (lethal dose, 50%), describes the <br />dose of a pesticide that will kill V2of a group of test animals from a <br />single dose. A pesticide with a lower LD511 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 />