00402naa a2200145 a 450000100080000000500110000800800410001910000170006024500760007726000090015365300080016265300110017070000220018177300530020310957281999-05-31       1984    bl ---       0--  u    #d1 aSTOBBS, L.W.  aOccurrence of tomato black ring virus on grapevine in Southern Ontario.  c1984  aUVA  aVIROSE1 aVAN SCHAGEN, J.G.  tCanadian Plant Disease Surveygv.64, n.1, p.3-4.