Paul Fisher, Dustin Meador, Jennifer Parke, Robert Wick and William Argo

Paul Fisher is associate professor and extension specialist, Dustin Meador is graduate student, Environmental Horticulture Department, University of Florida, pfisher@ufl.edu. Robert Wick is professor of plant pathology, Department of Plant, Soil and Insect Sciences, rwick@pltpath.umass.edu. Jennifer Parke is associate professor, Department of Crop and Soil Science, Oregon State University, jennifer.parke@oregonstate.edu. William Argo is technical manager, Blackmore Co., bargo@blackmoreco.com.

The authors thank sponsors of the Water Education Alliance for Horticulture (www.watereducationalliance.org) for supporting this series, including AquaPulse Systems, BioSafe Systems, Blackmore Co., Chem Fresh, Chlorinators Inc., DRAMMwater, Ellepot USA, Fafard, Greencare Fertilizers, Griffin Greenhouse and Nursery Supplies, Hanna Instruments, Phyton Corp., Pindstrup, Premier Horticulture, Pulse Instruments, Quality Analytical Laboratories, Sun Gro Horticulture and Trueleaf Technologies. The authors also thank the USDA-ARS Floriculture and Nursery Research Initiative and the Young Plant Research Center (www.floriculturealliance.org) for supporting the underlying research.