Cucurbit Genetics Cooperative Report 12:1-4 (article 1) 1989 Demetrios John Vakalounakis Plant Protection Institute, Heraklio, Crete, Greece During the 1979 to 1980 crop season, a severe leaf spot disease of cucumber (Cucumis sativus L.) was noticed on greenhouse crops grown in some plastic houses in the Sitia Area, Lasithi, Crete, Greece, along the coastal strip […]