Drechslera spp. on New Zealand certified cereal seed

The Drechslera species found on New Zealand certified cereal seed from the 1975–76 season are recorded. These include D. andersenii (Scharif), D. cynodontis (Marig.) Subram. and Jain, D. dematioidea (Bub. and Wrob.) Subram. and Jain, D. siccans (Drechs.) Shoem., D. sorokiniana (Sacc.) Subram. and Jain, D, teres (Sacc.) Shoem., and D. japonica (Ito and Kurib.) Shoem. on barley seed; D. avenae (Eidam) Scharif and D. sorokiniana on oat seed; and D. avenae , D. dictyoides (Drechs.) Shoem., D. sorokiniana , D. tritici‐repentis (Died) Shoem., D. verticillata (O'Gara) Shoem., and another Drechslera species on wheat seed. D. teres on barley, D. avenae on oats, and D. sorokiniana on barley and oats have been established previously as pathogens of cereals in New Zealand. Pathogenicity is described for D. cynodontis and D. japonica on barley, and D. avenae , D. sorokiniana , and D. trititicirepentis on wheat. The other species reported were non‐pathogenic.