| severity of walnut anthracnose and its relatively resistant in iran. | walnut black spot or anthracnose has been a destructive disease of juglans in iran mainly northwest of the country. current situation of the disease was studied in various regions including qazvin, zanjan, hamedan and east azarbyjan provinces during 1999 to 2002. infected samples such as leaves, fruits and foliage were collected and cultured in pda, cma and na media after surface sterilization with sodium hypochlorite. morphological characteristics and asexual reproduction of isolated pathogen s ... | 2006 | 17390889 |