CucCAP plant pathologist, Mary Hausbeck joined the July 28, 2021 podcast to talk about a group of pathogens called oomycetes
Phytophthora
The pathogen Phytophthora capsici causes Phytophthora Crown Rot, Phytophthora blight, and Phytophthora fruit rot.
Ontario Vegetable Crop Reports for July 2021
“Wet conditions have been conducive to the development of Phytophthora crown rot. Rots will extend well beyond the known wet zones or low-lying areas. On higher ground, the pattern of rot in the crop will appear random, with diseased plants next to apparently healthy ones. Once established phytophthora will spread from plant to plant via the root system, as well as through soil water.”
Wet Summer Impacts Crops | VSCNews
“Saturated soils can promote damping off, seedling blight and root rot in transplanted vegetables, especially in low lying areas of the field,”
What is NOT Proper Crop Rotation | SC Grower
Clemson Plant Pathologist Tony Keinath clears up some confusion about what is a proper crop rotation to manage diseases caused both by pathogens that survive a few years in soil and pathogens that survive in soil longer than anyone can measure.
Michigan vegetable crop report – June 30, 2021
The recent overcast, humid, and wet conditions ensure that the sporangia will survive being transported via air currents from a diseased field to healthy cucumbers.
CucCAP researchers develop high-throughput method for quantification of pathogen growth
Researchers at Michigan State University used a fluorescent isolate of the broad host range pathogen, Phytophthora capsici, to develop a high-throughput, microtiter plate assay for replicated quantification of pathogen growth on plant tissue in real time. This method, which can detect pathogen growth prior to development of symptoms, can assist with screening for disease resistance, mapping of resistance loci, testing efficacy of control measures, or elucidation of fundamental host-pathogen interactions.
CucCAP scientists test new squash breeding lines for performance and resistance to Phytophthora crown and root rot
Researchers at Cornell University developed squash breeding lines with increased resistance to Phytophthora crown and root rot.
PDMR 14 – Plant Disease Management Reports for Cucurbits
PDMR, Volume 14, 2020
Results of 2019, Published in 2020.
Plant Disease Management reports for cucumbers and squash.Evaluations include control of Downy mildew on cucumber, Downy mildew on squash and Phytophthora fruit rot on squash.
