14 articles in this issue
C.A. Morris,S.A. Johnson,J.Y. De Waal,A.P. Malan
Trimen’s false tiger moth, Agoma trimenii (Lepidoptera: Agaristidae), has recently been found to occur in vineyards in the Northern Cape and Limpopo (Groblersdal area) provinces of South Africa. As little is known about the biology and behaviour of the mo... see more
V. Panzeri,H.N. Ipinge,A. Buica
There are many ways of manipulating the components of grape berries and one of these is the implementation of a specific trellising system. This will affect light exposure in the bunch zone, air flow through the canopy,crop load, etc., and consequently th... see more
A.P. Nel,W.J. du Toit,F.P. van Jaarsveld
In the late 1960s, a phenomenon was discovered in white wines. It was noted that certain white wines turned pink in the bottle. This phenomenon was dubbed as pinking. Research was done on the pinking to establish its cause and effect. Analysis of SO2, pH ... see more
M. Malicanin,B. Danilovic,D. Cvetkovic,S. Stamenkovic-Stojanovic,N. Nikolic,M. Lazic,I. Karabegovic
Modern viticulture requires the replacement of hazardous agrochemicals with eco-friendly, bio-based products such as microbial preparations that enhance grape and wine quality while protecting the grapevine from pest and disease attacks. This study ... see more
M. Mafata,J. Brand,V. Panzeri,A. Buica
Although South African vineyards are still young by European standards, there is a belief in the industry that vines aged 35 or more years produce grapes and wines with specific characteristics (“old vine wines”). The aim of this study was to invest... see more
C. Morris,A.P. Malan,J.Y. De Waal,S. Johnson
Trimen’s false tiger moth, Agoma trimenii (Lepidoptera: Agaristidae), recently developed as a pest of grapevine in the Northern Cape and Limpopo (Groblersdal area) provinces of South Africa. Little is known about the biology of A. trimenii and control opt... see more
J. Lisek,A. Lisek
The aim of this study was to compare the cold resistance of grapevine cultivars in field conditions. Following the winters of 2016/2017 and 2017/2018, an assessment of frost damage was carried out on the vines of 42 wine cultivars and 45 table grape culti... see more
N.G. Iglesias,N.S. Brizuela,E.E. Tymczyszyn,A. Hollmann,D. Valdés La Hens,L. Semorile,B.M. Bravo-Ferrada
Lactobacillus plantarum UNQLp 11 strain was isolated from a Patagonian Pinot noir wine at the oldest commercial winery (110 years old) in General Roca, North Patagonia, Argentina, and has demonstrated its ability to survive during winemaking processes and... see more
N.T. Olguin,L. Delfederico,L. Semorile
Malolactic fermentation is a complex process that involves many reactions aside from the decarboxylation of L-malic acid. But we still have only glimpses of that complexity. It is not clear if the phenolic compositionand colour are affected by malolactic ... see more
L.A.I. Steyn,H. Geertsema,A.P. Malan,P. Addison
A leaf-mining pest occurring on commercial varieties of Vitis vinifera in South Africa was investigated due to the presence of cocoons on fruit. The leaf miner, Holocacista capensis, was reported on grapevines in 2012. Since its discovery on commercial gr... see more
J.L. Aleixandre-Tudo,W.J. du Toit
During red wine ageing, phenolic compounds undergo several reactions that have an impact on wine colour and mouthfeel properties. The evolution of phenolic content is affected during wine ageing. The aimof this study was to investigate the phenolic conten... see more
I. van Huyssteen,A.R. Mulidzi,A.H. Meyer,J. Wooldridge
Soil enzyme activity data from a lysimeter pot trial involving four dissimilar soils irrigated over two simulated seasons (SS) with winery wastewater (WW) and municipal water (MW), were converted to numerical scores using the alteration index three (AI3).... see more
G. Garrido-Bañuelos,A. Buica
Over the years, Pinotage has found its way into the South African and international market. Producers have used the flavour potential of this “original” South African grape to produce different wine styles, one of them being the so-called “coffee-style Pi... see more