Jun 15, 2018 - MB Potato Disease REPORT #2

Dr. Vikram Bisht

Potato & Horticultural Crops, Manitoba Agriculture


The potato crop stand looks good in most of the province.  There appears to be no major emergence issue, minor seed rot was seen in spots.  A few virus plants can be easily seen and rouged out at this stage in seed fields.


Fig 1. A good stand of potato crop

Fig 2. PVY Virus infected plant


Weather conditions since planting have been warm and above normal (Fig 3).  There have been a few rain events, which brought the precipitation closer to normal, but still on the dry side in potato production areas (Fig 4).


Fig 3.The temperatures – higher than normal. Fig 4. Precipitation – getting closer to normal


http://www.gov.mb.ca/agriculture/weather/pubs/percent-normal-gdd.pdf.  http://www.gov.mb.ca/agriculture/weather/pubs/percent-normal-precipitation.pdf

Heavy hail was reported from various places in Manitoba. Scatted areas of damage to crops has also been reported (Fig 5).

Fig 5.  Hail stones from 14 June (last night).




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