- D Rate Response , Absorption , and Translocation of Two Ground Ivy Populations Eric Kohler

Rationale Ground ivy is a stoloniferous, perennial weed that can persist in turf. Growing at soil level, stolons infiltrate surrounding vegetation and establish new populations, which result in non-uniform turf. Approximately 62,000 lbs of 2,4-D were applied to Indiana homelawns in 1992.. A 2001 survey of Indiana lawn care operators (LCO) found 79% of respondents used 2,4-D either alone or in combination with another herbicide to control ground ivy. Most LCO (86%) indicated that repeated herbicide applications were necessary for acceptable ground ivy control, suggesting chemical control of ground ivy is challenging for the lawn care industry. Widespread use and repeated applications of 2,4-D on turf sites could encourage development of 2,4-D-resistant ground ivy. Determining 2,4-D absorption and translocation patterns in 2,4-D-resistant and -susceptible ground ivy populations could ascertain whether these factors affect resistance and susceptibility, which could possibly lead to better control methods.