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United States Department of Agriculture

Agricultural Research Service

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1 - Development of White Mold Resistant Peas
2 - Release of Six Green Pea Lines for Breeding With Outstanding Root Rot Resistant
3 - First Report of Chickpea Resistance to PEMV (Porter)
4 - Pratylenchus neglectus, P. thornei, and Paratylenchus hamatus Nematodes Causing Yield Reduction to Dryland Peas and Lentils in Idaho
5 - Identifying Potato Tubers with Resistance to the Late Blight Pathogen that caused the Irish Potato Famine.
6 - Identifying Emerging Pathogens in Peas.
7 - Identification of Metalaxyl-resistant Pythium Impacting Potato and Other Crop Production (Porter)
8 - Survival of Asexual Spores of the Late Blight Pathogen in Soil (Porter)
Survival of Asexual Spores of the Late Blight Pathogen in Soil (Porter)

Dr. Porter in collaborative work with Dennis Johnson (WSU) determined that the maximum length of survival of sporangia and zoospores of the late blight pathogen in soil is between 20 to 23 days under the semi-arid conditions present in the Columbia Basin.  This research provided knowledge to growers that asexual spores of the late blight pathogen do not contribute to long term survival of the pathogen, and that spores remain infectious within a 23 day window following their release from sporulating plant tissue. 


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Last Modified: 3/30/2012
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