by D van Schalkwyk & FS de Villiers | 1 Apr, 2001 | Viticulture research, Winetech Technical
This article follows another that discussed the influence of production norms on grape and wine quality of Ruby Cabernet in the Robertson area (Van Schalkwyk et al., 1999). The conclusion of the prior investigation was that different production levels, induced by...
by Vaughn Walton | 1 Mar, 2001 | Viticulture research, Winetech Technical
Mealybug (Planococcus ficus) is one of the key pests affecting vines in South Africa. The last two seasons favourable climatic conditions urged viticulturists to focus on this pest once more. To control the mealybug successfully, a thorough knowledge of the insect’s...
by Stephan Joubert & Eben Archer | Viticulture research, Winetech Technical
Botrytis cinerea is a very important fungus and the cost to wine and table grape producers amounts to millions annually. Under favourable conditions Botrytis cinerea results in noble rot in white grape cultivars. Wines made from noble rot grapes are much in demand and...
by Lourens van Schoor | 1 Jan, 2001 | Viticulture research, Winetech Technical
From the initial planning stages of a farming practice or cellar, until the time when the land is eventually sold again, there are several aspects that may have negative impacts on the environment. For this reason there are numerous laws related to conservation of the...
by John Wooldridge | 1 Dec, 2000 | Viticulture research, Winetech Technical
Terroir is a Latin concept which, in French, refers to a body of land whose natural criteria: soil, sub-soil, relief and climate, form a unique assemblage of values which confer specific characteristics on the wines produced on that land (Hancock, 1997). Following a...
by | Viticulture research, Winetech Technical
By using a supplementary leaf nutrient programme, specially developed by Agro-Hytec for wine grapes, a whole range of benefits can be obtained, including stretching of bunches, improvement of set, better resistance to heat and moisture stress, increased crop size,...
by Lourens van Schoor, Kobus Conradie & Pieter Raath | 1 Nov, 2000 | Viticulture research, Winetech Technical
Computer programmes are generally used to process soil analysis results and make recommendations. However, to be able to interpret the chemical results themselves, grapevine producers require more information. This article provides the most important guidelines...
by Niel Hayward | 1 Oct, 2000 | Viticulture research, Winetech Technical
ENVIRONMENTAL MANAGEMENT & POLLUTION PREVENTION BULLETIN INTRODUCTION International markets are becoming increasingly competitive. Current economical, marketing and environ-mental requirements dictate that any production process implemented by your company be more...
by Lisél Mostert & Pedro Crous | Viticulture research, Winetech Technical
Phomopsis (dead arm) is an economically important disease in grapevines and occurs in most vine producing regions of the world. In Australia, four Phomopsis species have been associated with this disease. The current study found three of these species in South African...
by Pedro W. Crous and Elma Carstens | 1 Sep, 2000 | Viticulture research, Winetech Technical
Coniella diplodiella (Speg.) Petr. & Syd., the causal organism of white rot of vine is presently regarded as an organism of quarantine importance to South Africa on all grapevine propagating material as well as fresh fruit imported to South Africa. Not much is...
by Dr E F Beukman & R Carstens | Viticulture research, Winetech Technical
(The report was compiled by the convenor of the multidisciplinary team, Dr E F Beukman, with the aid of notes made by Mrs R Carstens during the workshop) Winetech assembled a multidisciplinary team of 19 scientists to investigate the problem and distribution of...
by Lourens van Schoor and Dries Visser | Viticulture research, Winetech Technical
BACKGROUND About forty years ago the world markets were flooded with cheap poor quality products. “Made in Japan, Hong Kong, Taiwan” and so forth, were synonymous with these products. The defensive reaction from the industrialised first world countries was...
