aphids on potatoes / organic farming / viurs deseases

Thomas Beckmann beckmann at gis.de
Sat Nov 9 14:39:59 EST 1996

Does anybody work on this subject ?

I'm investigating the relatioship between organic farming and virus
deseases on seed potatoes at Christian Albrecht University in Kiel,

I'd like to hear about anything related ...

Susanne Fittje, Kiel, Germany
beckmann at gis.de

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