Title page for ETD etd-11012008-163016

Type of Document Master's Thesis
Author Ricker, Daniel
URN etd-11012008-163016
Title Elucidating Influence of Temperature and Environmental Stress on Turfgrass Response to Mesotrione and Evaluation of Potential Synergistic Admixtures to Improve Mesotrione Efficacy
Degree Master of Science
Department Plant Pathology, Physiology, and Weed Science
Advisory Committee
Advisor Name Title
Askew, Shawn D. Committee Chair
Ervin, Erik H. Committee Member
Hipkins, Perry Lloyd Committee Member
  • and smooth crabgrass
  • mesotrione
  • chlorophyll
  • carotenoids
  • environmental stress
Date of Defense 2006-12-14
Availability unrestricted
Mesotrione is under evaluation for registration in turfgrass for weed control, but often requires repeat treatments. Previous research in agricultural crops indicates tank mixtures with mesotrione may improve weed control. Three field trials were conducted in 2005 and 2006 in Blacksburg, VA on smooth crabgrass in perennial ryegrass and tall fescue. Data indicate mesotrione applied in combination with bentazon, bromoxynil, or carfentrazone, controlled smooth crabgrass better than any of these herbicides applied alone at all sites. Adding mesotrione to MSMA and quinclorac improved smooth crabgrass on of three sites. Sequential mesotrione applications improved long term weed control.
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