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Results for “grape”
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1524 results — page 1 of 127
Grapevine fanleaf virus
Grapevine fanleaf virus is considered one of the damaging grapevine viruses and has a notable impact on the lifespan, yield and fruit quality of the vine. Consequently, the fanleaf virus has a major economic impact on the wine industry.
By Hennie Visser · 4 min read
Grapevine-associated Aspergilli
There is a wide range of fungi that can infect grape berries and cause a resultant reduction in wine quality. This article focuses on black Aspergilli.
By Klaas Coetzee · 6 min read
Impact of grapevine leafroll disease on grape and wine composition
Grapevine leafroll disease (GLD) is the most common grapevine disease, which is present in grape-growing regions globally.
By Erna Blancquaert & Wessel du Toit · 8 min read
Grapevine surgery: It’s a thing …
Ever heard the expression, “it’s so crazy, it might just work”? A group of eccentric Italian viticulturists, or ‘master pruners’, have introduced an unconventio
By Anton Pretorius · 6 min read
Quality grapes with limited water
This study is unique in that it is the first study to provide data on vines subjected to water-restricted conditions from the day that they were planted. It is important, because it contributes towards ensuring sustainable and profitable production of quality wine grapes in South Africa, even in…
By Melané Vivier · 14 min read
Incorrect weed management during grapevine bud break decreases grapevine performance
PHOTO: Francois Viljoen.
By Doronae · 3 min read
The CRISPR revolution and grapevine
Genome editing is a catchall phrase to describe the technologies that are available to alter an organism’s DNA. The most promising of these technologies is CRISPR, which is an acronym for ‘Clustered Regularly Interspaced Short Palindromic Repeats’ and occurs in nature as a bacterial ‘immune system’.
By Manuela Campa, Philip Young, Melané Vivier and Johan Burger · 9 min read
Sawing back of grapevines for retraining
The decision to saw back and renew a vineyard requires thoughtful consideration. In certain cases, the inputs required for renewal are not justified by the likely outcome.
By Hennie Visser · 5 min read
Wine grape scion material sales drop
Vititec annually supplies 95% of all wine grape scion material to the local nursery industry.
By Annalize · 1 min read
Entomopathogenic fungi mortality on grapevine mealybug
Global demand for environmentally friendly grapevine cultivation and pest control has necessitated an improved understanding of naturally occurring antagonists
By Kwaku Achiano · 4 min read
