Scab Caused by Gibberella zeae Occurring on Irrigated Wheat in Eastern Washington. D. A. Inglis, Former Research Associate, Washington State University, Pullman 99164. O. C. Maloy, Extension Plant Pathologist, Washington State University, Pullman 99164. Plant Dis. 67:827-828. Accepted for publication 15 April 1983. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-827.

Gibberella zeae caused scab in overhead irrigated wheat fields that had been in rotation with corn in eastern Washington in 1982. Neither the fungus nor the disease have been reported previously in the region. The increasing practice of rotating sprinkler-irrigated wheat with sprinkler-irrigated corn probably contributed to the outbreak of the disease.

Keyword(s): Fusarium graminearum.