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Articles by Gerhard Pietersen
4 articles — page 1 of 1
Winetech funds research towards improved Vitis planting material for the wine industry
Insights and research
We have established an entire protocol for the detection of GFkV by ELISA for immediate implementation, at least at a nuclear plant level, in the VIA’s certification scheme, and have recommended to the VIA and DALRDD that the most affordable kit be utilised using the protocol established through…
Optimisation of grapevine leafroll detection by sentinel canes
Vineyard, cellar and production
In this project we evaluated the use of a bud of a red cultivar, grafted on individual white cultivar vine stems to serve as visual indicators of leafroll infection in the white cultivar.
Poor detection of grapevine leafroll-associated virus type 3 in rootstocks
Vineyard, cellar and production
PHOTO: Piet Goussard.
Leafroll control strategy - an integrated approach
Insights and research
What causes leafroll virus? [Fact sheet 1.1]* • Leafroll virus is caused by leafroll associated virus -3 (GLRaV-3). Other types of leafroll associated viruses e