Abstract
A new distribution map is provided for Gnomonia leptostyla (Fr.) Ces. & De Not. Hosts: Walnut (Juglans spp.). Information is given on the geographical distribution in AFRICA, South Africa, ASIA, India (Kashmir), Iran, Israel, Lebanon, USSR (Central Asia), EUROPE, Austria, Belgium, Britain, Bulgaria, Cyprus, Czechoslovakia, France, Germany, Greece, Hungary, Irish Republic, Italy, Netherlands, Poland, Portugal, Romania, Spain, Switzerland, Turkey, USSR (Caucasus, Ukraine), Yugoslavia, NORTH AMERICA, Canada (NB, Ontario), (NS, Quebec), USA, SOUTH AMERICA, Argentina, Chile, Uruguay.