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Now showing items 1-12 of 12
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The characterisation of basidiomycetes associated with esca disease in South African grapevines
(Stellenbosch : Stellenbosch University, 2015-03)ENGLISH ABSTRACT: Esca is a disease complex of grapevine that includes different foliar and vascular symptoms caused by various fungal pathogens. One of the distinguishing characteristics of the disease on mature vines is ... -
The characterization of the basidiomycetes and other fungi associated with esca of grapevines in South Africa
(Stellenbosch : University of Stellenbosch, 2010-12)ENGLISH ABSTRACT: Esca is a disease affecting grapevines and is potentially devastating as there are economic losses due to a decrease in yield, wine quality and berry quality. Vineyards also need to be replaced earlier ... -
Dectection and quantification of soilborne pathogens in grapevine nurseries
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: Black-foot disease (BFD) and crown and root rot (CRR) are important decline diseases of grapevines, worldwide. These diseases occur in both nurseries and vineyards. Black-foot disease is caused by species ... -
Determining the resistance or susceptibility of grapevine rootstocks used in South Africa towards fungal trunk disease pathogens
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Grapevine fungal trunk diseases are responsible for reduced grapevine production world-wide. Trunk diseases are caused by endophytic, xylem-inhabiting pathogens associated with a wide range of symptoms. ... -
Identification and characterisation of diatrypaceae species associeated with declining grapevines and alternative hosts in South Africa
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Grapevine trunk diseases have devastating impacts on the sustainability of viticulture, worldwide. Eutypa dieback, in particular, has caused large economic losses and premature mortality of vines. This ... -
Improving pruning wound protection against grapevine trunk disease pathogens
(Stellenbosch : Stellenbosch University, 2014-03)ENGLISH ABSTRACT: Grapevine trunk diseases are a cause of decline and loss of productivity in grapevines at all stages of growth. These diseases are caused by a complex of wood-inhabiting fungi that infect mainly through ... -
Inoculum ecology of petri disease fungi in grapevines of South Africa
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Petri disease is among the important grapevine trunk diseases affecting lifespan and productivity of young vines worldwide. Infection result in poor vine stand in newly established vineyards and a general ... -
Investigation of Trichoderma species colonization of nursery grapevines from improved management of black foot
(Stellenbosch : Stellenbosch University, 2019-03)ENGLISH ABSTRACT: Black foot disease (BFD) is one of the main fungal diseases associated with young grapevine decline. In recent years its incidence and severity has increased significantly, affecting both nurseries and ... -
Occurence of canker and woodrot pathogens in young apple trees and possible sources of inoculum
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Apples are one of the most important deciduous fruit crops cultivated in South Africa. The deciduous fruit industry identified a higher occurrence of young apple trees that died due to canker or wood rot ... -
Occurrence of canker and wood rot pathogens on stone fruit propagation material and young stone fruit trees
(Stellenbosch : Stellenbosch University, 2019-03)ENGLISH ABSTRACT: The phytosanitary status of stone fruit propagation material and nursery trees in South Africa are not known. Canker and wood rot pathogens can be present in visibly clean material. Due to stress and ... -
The role of arthropods in the dispersal of trunk disease pathogens associated with Petri disease and Esca
(Stellenbosch : Stellenbosch University, 2013-03)ENGLISH ABSTRACT: Petri disease and esca are devastating grapevine trunk diseases and compromise the sustainability of viticulture world-wide. Despite being extensively studied, knowledge of inoculum sources and mechanisms ... -
The role of sucker wounds as portals for grapevine trunk pathogen infections
(Stellenbosch : Stellenbosch University, 2014-04)ENGLISH ABSTRACT: Grapevine trunk diseases are responsible for reduced wine and table grape production world-wide. Trunk disease infections are caused by xylem-inhabiting pathogens which include species of Botryosphaeriaceae, ...
