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Results for “Disease”
Showing 1–12 of 201 results
201 results — page 1 of 17
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
Rugose wood diseases and associated viruses
A potential threat to vineyards and an unexplored, fascinating subject for scientific study.
By Dariusz Goszczynski · 12 min read
Virus diversity associated with grapevine leafroll disease
PHOTO: Hanno van Schalkwyk.
By Johan Burger · 12 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
Feedback from the 11th International Workshop on Grapevine Trunk Diseases
The 11th International Workshop on Grapevine Trunk Diseases (IWGTD) was held in Penticton, British Columbia, Canada. This workshop hallmarked 20 years of resear
By Lizel Mostert and Francois Halleen · 11 min read
Petri disease - when and how do Western Cape vineyards get infected?
The aim of the current study was to identify Petri disease pathogen inoculum sources in vineyards and rootstock mother blocks and to determine if, and when, spores are released and whether spore release events coincide with susceptible periods in vineyards and mother blocks.
By Francois Halleen, Annabella Baloyi & Lizel Mostert · 8 min read
New pest and disease identification technology set to revolutionize agri-industry
Aerobotics Co-Founder and CEO James Paterson.
By Anton Pretorius · 6 min read
Proving the aetiology of two important grapevine viral diseases remains a challenge
Grapevine leafroll (GLD) and Rugose wood (RW) are two diseases of great concern for grapevine industries worldwide. GLD causes degeneration of phloem cells, pre
By Doronae · 8 min read
Detection and quantification of black foot disease and crown and root rot pathogens in grapevine nurseries
The aim of this study was to evaluate the effect of different rotation crops used by nurseries on BFD and CRR pathogens by detecting and quantifying these patho
By Doronae · 9 min read
Incidence and spread of aster yellows
Symptoms associated with aster yellows (AY) vary during the season and between cultivars.
By Roleen Carstens · 5 min read
Esca in SA vineyards
Esca is a fairly unknown grapevine disease in South Africa, although the disease has probably existed locally for decades. This article discusses the causative
By Francois Halleen · 5 min read
Eutypa-like fungi associated with grapevine cankers and dieback
PHOTO: Francois Halleen.
By Providence Moyo and Lizel Mostert and Francois Halleen · 7 min read
