In this study, artificially inoculation of six rice varieties widely cultur
ed in the Gharb with Helminthosporium spiciferum showed different sensitivi
ties against this isolate used. The foliar lesions are different from those
noted on the plants of rice inoculated by Helminthosporium oryzae. Oryza s
ativa = rice/Helminthosporium spiciferum/symptoms.