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Weedtechnics Experiment - University of Colorado, Boulder.pptx


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Weedtechnics assisted the University of Colorado Boulder to transition from mechanical weeding methods to the Weedtechnics Saturated Steam and Boiling Water technique - doubling their efficiency, saving a lot of time and improving overall presentation standards. Check out the full experiment and the results they achieved...

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Weedtechnics Experiment - University of Colorado, Boulder.pptx

  1. 1. The cost benefit case for pesticide free. Holistic Vegetation Management
  2. 2. University of Colorado Boulder Housing Facilities Services Five years and counting – no chemical pesticides used in any turf grass
  3. 3. The Weedtechnics Experiment Mechanical removal of weeds previously the only option as the University of Colorado, Boulder has a strict no-pesticide use policy.
  4. 4. The Weedtechnics Experiment Manual weed removal rate tested May 1, 2015 18 labor hours to treat 25,386 ft2 Hand Production Rate: 1,410 ft2/hour
  5. 5. We used the SW700 unit for this experiment due to its maneuverability and ease of use. The treatment fluid is a combination of Saturated Steam and Boiling Water heated to 210-215 F (98-102 C). The Weedtechnics Experiment
  6. 6. Examples of treatment panels include: ● segmental paved areas ● concrete paved areas ● bark mulched beds ● gravel mulched beds ● pebble mulched beds ● mulched tree circles The Weedtechnics Experiment
  7. 7. CU Test Parameters: 105,000 ft2 (2.4 acres) of landscape beds Initial Presentation Levels Documented Timed the Application of the SW700 in each Landscape Bed Weedtechnics Experiment begins June 13, 2016
  8. 8. June 29, 2016 September 7, 2016After 2 Treatments
  9. 9. June 29, 2016 September 7, 2016After 2 Treatments
  10. 10. Treatment on June 13, 2016 Result on June 15th, 2016 After 2 Days!
  11. 11. After 3 treatments, September 9th, 2016 Before 2nd treatment, September 9th, 2016
  12. 12. June 29th, 2016 September 7, 2016 After 1 Treatment
  13. 13. What We Learned During our 60 day test period spanning from June 13, 2016 to August 12, 2016 114 labor hours, over 30 working days, where needed to maintain a presentation standard of 1 ( < 5% weed cover, < 1” in height) 2,297 ft2 per hour average with SW700 versus 1,410 ft2 per hour average by Hand
  14. 14. 128 specific test panels were treated in the test area To maintain a Level 1 presentation standard: 32 panels required only One treatment 70 panels required Two treatments 26 panels required Three treatments Resulting in: 261,877 ft2 total area treated (6.0 acres) What We Learned
  15. 15. Cumulative Benefit: Faster, better, stronger! Efficiency Increase: 2,960 ft2/ hour of machine run time - 1st 15 days of treatment 4,710 ft2/ hour of machine run time - 2nd 15 days of treatment = 59% increase in productivity from 1st to 2nd treatment What We Learned
  16. 16. The Real Measure of Effectiveness: By experiment’s end the overwhelming majority of test beds were at a Presentation Standard of 1 Presentation Standard
  17. 17. The process • Establishing outcomes and presentation standards required; • Quantification of assets and areas to be managed; • Inventory of weed species, asset types, terrains and resources; • Assessment of techniques and apparatus appropriate to achieve the outcomes; • Skills gap analysis to develop training requirements; • Design of weed management program; and • Procurement of appropriate SW apparatus • Implementation of training, weed management cycle, reporting and feedback loop.
  18. 18. Register your interest in CU Boulder Pesticide free landscape workshops. Visit