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Potato Diseases PVY Strain Virus Symptoms

Potato virus Y NTN 

 

 

Potato virus Y NTN isolate PB312 symptoms in the greenhouse-grown potato cultivar Yukon Gold include raised necrotic rings around the tuber eyes after 5 wk of storage at 4C.

Images: P. M. BALDAUF , S. M. Gray, and K. L. Perry . Department of Plant Pathology, Cornell University, 334 Plant Science, Ithaca, NY 14853, USA and USDA-ARS, PPRU, Ithaca, NY 14853, USA.

 

PVYn:o necrotic strain

 

 

 

Plants reaction to PVYn:o necrotic strain. Two of the pictures (plant and tuber) are from a greenhouse and one is from the field. The symptoms from the greenhouse plants on the foliage is very similar to what is observed on plants in the field.

Images: R. Singh, AAFC-Research
 
PMTV and PVYntn
The following pictures are of external and internal damage to tubers caused by PMTV and PVYntn.
PMTV Damage

PVYntn Damage

 

 

 

Images: Dr. Xu, Canadian Food Inspection Agency

 



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