The evaluation of different herbicides and herbicide application techniques for total chemical control of leafroll infected grapevines, as part of a strategy to prevent the transfer of the virus to newly planted grapevines

Project Number
WW 02-19

Project title
The evaluation of different herbicides and herbicide application techniques for total chemical control of leafroll infected grapevines, as part of a strategy to prevent the transfer of the virus to newly planted grapevines

Project leader
Fourie, J C

Team members
Mulidzi, A R
Carstens, R
Walton, V M
Ochse, C H
Freitag, K
Davidse, L

Project description
-To determine the grapevine control efficacy of selected herbicides, applied according to different application techniques.
-To determine the effect of the treatments on the occurrence of mealy bug.
-To determine the effect of the treatments on the occurrence of leafroll virus in grapevines established on the same soil.

To supply the wine industry with information that may lead to the registration of a herbicide(s) and application method for the total control of leafroll infected grapevines, which may help to prevent the transfer of the virus to young grapevines established on the same soil.

Poster(s)
Osche, C H, Fourie, J C and Freitag, K. 2009. Evaluation of herbicides and herbicide application technique for chemical control of leafroll infected grapevines. Combined Congress, Stellenbosch, 21 January, South Africa

Ochse, C H, Fourie, J C and Freitag, K. 2010. Evaluation of herbicides and herbicide application techniques for chemical control of leafroll infected grapevines. 32nd National Congress of the South African Society for Enology and Viticulture, 18-19 November, Somerset West, South Africa

Presentation(s)
Fourie, J C. 2006. The evaluation of different herbicides and herbicide application techniques for total chemical control of leafroll infected grapevines, as part of a strategy to prevent the transfer of the virus to newly planted grapevines. Presentation at the 6th Grapevine Virus Workshop. 15 August, Stellenbosch, South Africa.

Fourie, J C. 2007. Evaluation of herbicides and herbicide application technique for total chemical control of leafroll infected grapevines. Presentation at the 7th Grapevine Virus Workshop. 2 May, Stellenbosch, South Africa.

Fourie, J C. 2008. Evaluation of herbicides and application technique for total control of leafroll infected grapevines. Presentation at the 8th Grapevine Virus Workshop.19 August, Stellenbosch, South Africa

Fourie, J C. 2009. Chemical control of leafroll infected grapevines – part of a strategy to prevent transfer of virus to newly planted grapevines. 9th Winetech Grapevine Virus Workshop, 15 September, Stellenbosch, South Africa

Fourie, J C. 2009. Chemical control of leafroll infected grapevines. ARC Infruitec-Nietvoorbij and Winetech project visit. 18 November, Stellenbosch, South Africa

Fourie, J C. 2009. Efficacy of post harvest application of different herbicides for the control of leafroll infected grapevines. ARC Infruitec-Nietvoorbij and Winetech project visit, Nietvoorbij. 18 November, Stellenbosch, South Africa

Fourie, J C. 2011. Evaluation of herbicides for the control of leafroll infected grapevines. 11th Grapevine Virus Workshop, 24 May, Stellenbosch, South Africa

FinalReport.pdf

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