Mississippi State University
McCurdy, James D.
Czarnecki, Joby M.
Stewart, Barry R.
Date of Degree
Original embargo terms
Complete embargo for 2 years
Graduate Thesis - Open Access
Plant and Soil Sciences
Master of Science
College of Agriculture and Life Sciences
Department of Plant and Soil Sciences
St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze] is a widely used lawn grass in the southeastern United States. St. Augustinegrass is typically vegetatively established from plugs or sod. Establishment of St. Augustinegrass sod can be slowed due to weed competition. Weed-infested sod may not be harvestable and is less desirable by end users. Preemergence herbicides are used to prevent weed infestation; however, preemergence herbicides often negatively affect sod grow-in. Current research evaluated the effects of contemporary preemergence herbicides on St. Augustinegrass grow-in from plugs. Grow-in was evaluated using visual estimates of percentage St. Augustinegrass cover, as well as Normalized Difference Vegetation Index (NDVI), Ratio Vegetation Index (RVI), and Chlorophyll Index-Red Edge (CI-RE) collected by handheld and aerial multispectral sensors. A sharable workflow was created in ArcGIS Pro to extract vegetation indices from aerial imagery. Trends of increased time to grow-in due to herbicide treatment were detected by visual and multispectral assessments.
Wilber, Amy L., "Evaluating effects of contemporary preemergence herbicides on plugged St. Augustinegrass grow-in using multispectral and traditional evaluation methods." (2021). Theses and Dissertations. 5164.
Available for download on Monday, May 15, 2023