00999naa a2200157 a 450000100080000000500110000800800410001910000150006024501320007526000090020752005200021665000110073665000110074765000120075877300710077018316672011-08-18       1978    bl ---       0--  u    #d1 aTEKAUZ, A.  aIncidence and severity of net blotch of barley and distribution of Pyrenophora teres biotypes in the Canadian prairies in 1976.  c1978  aNet blotch was found in most barley (Hordeurn distichurn, H. vulgare) fields sampled in three prairie provinces. Disease severity was generally very light in six-rowed barley throughout the area sampled and in two-rowed barley in Alberta. Two-rowed barleys in Manitoba and Saskatchewan had moderate levels of disease. One biotype of Pyrenophora teres predominated in Manitoba, another in dlberta; and both were common in Saskatchewan. A third biotype was found only in eastern Manitoba and in two fields in Alberta.  aCanada  aCevada  aDoença  tCanadian Plant Disease Survey, Ottawagv. 58, n. 1, p. 9-11, 1978.