OFA Short Course and Trade Show. July 10-14, 1999. Columbus Convention Center. The programs are out. Do not forget to register!
Slow Sand Filtration for Control of Plant Pathogens in Irrigation Water. July 15. 8:45 AM - 2:30 PM. OARDC, Wooster, OH. Speakers: Dr. Walter Wohanka, Dr. Harry Hoitink, and Dr. Sally Miller. For more information contact Dr. Hoitink at: 330-263-3848.
