Suzie, My zone is 6a, bordering the Ashokan Resovoir, maybe by 150 yds north, just outside Woodstock,NY, nice micro-climate. Had no problem for 3 years, then bought some plants (apparently infected) last year. They were not healthy, I should have ditched them then..... Removed the obvious ones, I'll increase the fert. they already get primo southern exposure..... Thanks everybody for the guidence, will keep you posted. Bill