Herbicide Reference Guide For Landowners - Larimer County

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Boom or Boomless Sprayer CalibrationVolume method1. On level ground, fill sprayer tank to a known level withwater and drift agent (if using).2. Turn on sprayer till all nozzles have output, shut off andrefill tank to desired level.3. Measure off ¼ of an acre, marking the start and end with aflag.Width of boomLinear feet toswath in feetcover ¼ acres2 54454 27236 18158 136210 109020 54530 3634. Drive the measured ¼ acre with the speed that you will beusing to spray, turning on the sprayer at the starting markand off at the ending flag.5. Return to the level ground that you filled the sprayer at andcarefully measure the amount of water it takes to refill tothe known level from step 1.6. Multiply the amount from above step by 4. This is GPA(Gallons Per Acre).Stationary method1. On level ground, fill sprayer tank with water and drift agent(if using).2. Turn on sprayer and measure spray pattern width in feet.3. Collect liquid from each nozzle for 1 minute. Measure inounces.4. Divide ounces by 128 to determine GPM (Gallons PerMinute).5. Determine speed (MPH) you will be using during spraying.6. With the below formula calculate GPA (Gallons Per Acre).GPA = GPM x 495MPH x swath width (feet)80
ReferencesMore extensive information can be obtained from:Plant identification and control:‣ Larimer County Weed District - www.larimer.org/weeds‣ Colorado Dept. of Agriculture Noxious Weed Program -www.colorado.gov/ag/weeds‣ Colorado Weed Management Association - www.cwma.org‣ Colorado State University Extension small acreagemanagement- www.ext.colostate.edu/sam‣ Plant identification- www.easterncoloradowildflower- Weeds of the West- Aquatic and Riparian Weeds of the West- Thistles of Colorado‣ Poisonous plants- „A Guide to Plant Poisoning of Animals in NorthAmerica‟- Dr. Knight‟s websitehttp://southcampus.colostate.edu/poisonous_plants- or e-mail Dr. Knight at Anthony.Knight@colostate.edu‣ Seeding and soil recommendations- NRCS office – 970-295-5655Noxious weed awareness organizations in Larimer County:‣ North Fork Weed Coop - www.northforkweedcoop.org/‣ Estes Park Land Stewardship Association -www.elsainfo.orgWeed law:‣ The Colorado State Noxious Weed Act -www.colorado.gov/ag/weeds‣ Applicator education and continuing education information- www.colostate.edu/Depts/SoilCrop/extension/CEPEPPesticide labels and safety information:‣ Information on pesticide toxicity, environmental fate, ormode of action 1-800-858-7378‣ Rocky Mountain Poison and Drug Center 1-800-222-1222‣ Chemtrec 1-800-424-9300 (Use for chemical spills.)‣ www.cdms.net (Use for complete labels and MSDS)81
Page 1 and 2: Herbicide Reference Guide For Lando
Page 3 and 4: PPE - Personal Protective Equipment
Page 5 and 6: Brand name Active ingredient Remark
Page 7 and 8: Signal word(toxicity)AminopyralidBr
Page 9 and 10: Signal word(toxicity)ClopyralidBran
Page 11 and 12: DiflufenzopyrBrand Name:Overdrive,
Page 13 and 14: Signal word(toxicity)GlyphosateBran
Page 15 and 16: Signal word(toxicity)Rainfastperiod
Page 17 and 18: Metsulfuron methylBrand Name:Ally,
Page 19 and 20: Signal word(toxicity)Rainfastperiod
Page 21 and 22: TriclopyrBrand Name:Element 4, Elem
Page 23: Sprayer CalibrationIt is critical t
Page 27: Noxious weed - Defined in the Color

Herbicide Reference Guide For Landowners - Larimer County

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