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Plant Health

Potato Diseases

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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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Last Modified: September 11, 2008

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