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(New York State IPM Program, 1984)
Downy mildew, a fungal disease native to North America, attacks most species of wild and cultivated grape. The disease was inadvertently introduced into European vineyards in the late 1870’s where it devastated the European ...
(New York State IPM Program, 1981)
Eutypa dieback of grapevines, formerly called “dead arm,” was for many years thought to be caused by the fungus Phomopsis viticola. Recently, however, another fungus, Eutypa armeniacae (imperfect stage: Cytosporina), was ...