Date of Award:
Doctor of Philosophy (PhD)
Plants, Soils, and Climate
Ralph E. Whitesides
Ralph E. Whitesides
Grant E. Cardon
R. Douglas Ramsey
Corey V. Ransom
Eric T. Thacker
Wildland invasive weed treatment, a primary task of land managers, is expensive. Variables including weed canopy cover, slope, land cover, and weed visibility can affect treatment time and cost. A partnership was established with the Department of Plants, Soils, and Climate at Utah State University, Providia Management Group (PMG Environmental LLC) and Jardyne Technologies to develop a wildland weed treatment time model to better understand the effect of these variables on treatment time.
The “smart” spray wand (SSW) is a new precision tool used to develop this model. The SSW is a spray wand with an integrated GPS and a flow meter that can be
used with any type of spray system. The wand records the GPS location, herbicide flow, application time, and associated data of each treatment spray point, and provided necessary data for the development of the treatment time model.
The weed canopy cover had the largest impact on treatment time. If canopy cover, slope, land cover, and weed visibility information can be obtained for a weed
control project, the new model can be used to estimate treatment time and therefor cost. An accurate treatment time model could 1) establish an accurate weed control cost standard for contractors and land managers, 2) assist in planning and managing limited treatment resources, and 3) justify weed control funding requests and expenditures.
Dayton, Bryan E., "Introducing Two New Weed Control Tools: A "Smart" Spray Wand and a Wildland Weed Treatment Time Model" (2015). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 4268.
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