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Results for “toxicity”
Showing 1–12 of 15 results
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Vineyard responses to salinity-associated soil chemical properties
Introduction
By Sandile · 8 min read
The role of metals in the quality and shelf-life of white wine
PICTURE: Shutterstock.
By Francois van Jaarsveld and Francois October · 6 min read
Using MLF to create a buttery wine or not
Various factors influence the amount of diacetyl, acetoin and 2,3-butanediol produced during fermentation impacting the buttery aroma.
By Natasha Pretorius, Lynn Engelbrecht and Maret du Toit · 11 min read
Small bugs, big problems
There are several microscopic maladies that can affect grapevines. Particularly fascinating and challenging is the dreaded leafroll virus, since conventional an
By Lee-anne · 5 min read
Screening of regulated wine substances
PHOTO: Shutterstock.
By Astrid Buica and Marietjie Stander · 6 min read
New tools to help overcome stuck fermentations in wine
Twenty years ago, it was thought that stuck fermentations were mainly due to two things: nitrogen deficiency and the glucose/fructose ratio of the must. Recentl
By Lallemand · 16 min read
Something wicked (smelling) this way comes ...
PHOTO: Shutterstock.
By Nongcebo Langa and Marianne McKay · 9 min read
The smoke spoilage of wine
Veld fires caused serious damage in some of the Australian and Californian wine regions over recent years. Although not in the same magnitude, the problem has a
By Charl Theron · 6 min read
Tartaric acid - forms and effects
Tartaric acid and its salts are important products with commercial and industrial applications in the wine and other industries.
By Francois van Jaarsveld · 6 min read
Leafroll disease or deficiency symptom?
Grapevine leafroll disease is the most important viral disease of grapevines in South Africa. It is thought to have a significant impact on the sustainability of the wine industry, impacting both the qualitative and productive lifespan of our vineyards.
By Etienne Terblanche · 8 min read
Soil compaction - the silent killer of conservation agriculture?
In this article, the effect of compaction on water infiltration and redistribution, root growth and on aeration will be discussed.
By Eduard Hoffman · 16 min read
Manganese deficiencies
During the past season, symptoms of manganese deficiency were relatively commonly observed in wine grapes in the Coastal Region areas.
By Hanno van Schalkwyk · 4 min read
