Re: Cypripedium - virus symptoms (another photo)

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Abgeschickt von Peter Corkhill am 30 April, 2000 um 22:49:57

Antwort auf: Re: Cypripedium - virus symptoms (more photos) von Michael Weinert am 28 April, 2000 um 07:10:17:

The photograph shows a Potyvirus infected plant of Cyp. parviflorum pubescens. This plant belonged to a friend who had the virus confirmed by screening before it was destroyed. The photograph shows quite severe symptoms with distortion of the leaf, blistering and pale streaking all visible. It is important that growers know what to look out for. There is another similar condition which I have also seen when a leaf lacks pigment in streaks, this is not due to virus but I am unsure of the cause and have seen it only once on a deflasked seedling.