A Customized Approach to Biological Control of Wheat Root Diseases

  • R. James Cook
Part of the NATO ASI Series book series (NSSA, volume 230)


Take-all caused by Gaeumannomyces graminis var. tritici (Ggt), Rhizoctonia root rot caused by R. solani AG8 and R. oryzae, and Pythium root rot caused by several Pythium spp., individually and as mixtures, are major limiting factors to the yield of wheat grown with short or no crop rotation and little or no tillage, typical of modern wheat farming in much of North America and in the world. In experiments conducted over a 15-year period in the Pacific Northwest (PNW), the average response of wheat to soil fumigation (used as a research tool) in the higher-production areas (subhumid-rainfed and arid/semiarid-irrigated) has been 70, 22, and 7% in fields cropped to wheat every year, every other year, and every third year, respectively (Cook, 1990; Cook and Veseth, 1991).


Biological Control Fluorescent Pseudomonad Wheat Root Rhizoctonia Solani Root Disease 
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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • R. James Cook
    • 1
  1. 1.U.S. Department of AgricultureAgricultural Research ServicePullmanUSA

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