Soybean Vein Necrosis Virus (SVNV) was confirmed in September, 2012 by the University of Guelph Pest Diagnostic Clinic from soybean leaf samples collected in Chatham-Kent and Elgin counties as part of OMAFRAs participation in North American monitoring efforts for soybean foliar diseases such as soybean rust, frogeye leafspot, etc.
SVNV is a new soybean disease which was first identified in Tennessee in 2008. Since then the disease has been reported in many other States and most recently in bordering Great Lake States such as Ohio, New York and Michigan. The disease has most likely been present in soybeans for many years but could have gone misdiagnosed since symptoms look very similar to Cercospora leaf blight (Cercospora kikuchii), scald
(sunburn), plant stress response and others.