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New report of loose smut (Ustilago syntherismae) on Digitaria sanguinalis in Spain

Mas, M.T.; Verdu, A.M.C.; Girbal, J.

Plant Pathology 55(2): 298

2006


ISSN/ISBN: 0032-0862
DOI: 10.1111/j.1365-3059.2005.01303.x
Accession: 004454484

In September 2004, smutted inflorescences of large crabgrass (Digitaria sanguinalis) were observed in an uncropped edge of an arable field at Torre Marimon, Spain. The first visible symptom was a slight separation of the leaf sheath from the stem (at the flag leaf level). Examination under a stereomicroscope revealed that the inflorescence was initially infected at the rachis of racemes, where sori (irregular to confluent) could be observed.

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