The 2009 ASHS Annual Conference

Robert H. Stamps

Univ of Florida, IFAS, Mid-Florida Res. and Educ. Cntr.
Environmental Horticulture
2725 South Binion Road
Apopka, FL
USA 32703-8504
Email: rstamps@ufl.edu

Papers:
Efficacy of Four Preemergence Herbicides Declines Over Time