From Meg McGrath, Long Island Horticultural Research & Extension Center, mtm3@cornell.edu: Plants of downy mildew resistant sweet basil variety Prospera severely affected by downy mildew were observed in a commercial greenhouse planting in Suffolk County, NY, in fall 2022. Seed of Prospera and DiGenova were sown in our laboratory at LIHREC. Seedlings of both varieties inoculated […]
