From Meg McGrath, Long Island Horticultural Research & Extension Center, mtm3@cornell.edu: Downy mildew has again started developing early (mid-July) on Long Island, which was anticipated following early detection in New Jersey (6/11/22).  Since 2007 when monitoring was started on LI, symptoms have first been seen here from 7/14 (2021) to 9/7 (2010).  Often it has been about 1 … Continue reading Downy Mildew Found in Cucumber on Long Island