Determining economic threshold levels for vine mealybug

Project Number
WW 05-14

Project title
Determining economic threshold levels for vine mealybug

Project leader
Walton, V M

Institution
University of Stellenbosch

Team members
Pringle, K L

Project description
Monitoring of vine mealybug is essential, especially in November as temperatures become optimal for development at this time of the season. Data indicate that monitoring of vine stems are most effective as it can serve as a early warning tool. Systematic sampling should be done on five stems per plot and twenty plots per block evenly distributed throughout the block. Data show that action should be taken when stem infestation levels of between 2 and 3% are reached. Vine mealybug pheromones are available and should be tested as a monitoring tool before it can be implemented in vineyards.

Presentation(s)
Walton, V M. 2002. Vine mealybug monitoring and control, SPT Farmers’ Day, 5 March, Kakamas, South Africa.

Walton, V M. 2002. Vine mealybug monitoring and control, DFPT Farmers’ Day, 10 April, Nylstroom, South Africa.

Walton, V M. 2002. Integrated Pest Management.17 April, ARC Infruitec-Nietvoorbij, Stellenbosch, South Africa

Walton, V M. 2002. Integrated Pest Management. 18 April, University of Stellenbosch, Stellenbosch, South Africa.

Walton, V M. 2002. Latest developments in mealybug research. Presentation at the 2nd Virus Work Group. 6 May, Simondium, South Africa.

Walton, V M. 2002. Latest research on vine mealybug. Presentation at the Winetech Information Day. 9 May, Paarl, South Africa.

Walton, V M. 2002. Virus vector and vine mealybug research at ARC Infruitec-Nietvoorbij. Presentation at the VinPro Information Day. 24 May, Stellenbosch, South Africa.

Walton, V M. 2002. Vine mealybug control at ARC Infruitec-Nietvoorbij. Wenkem pest and disease control programme. 11 June, Stellenbosch, South Africa.

Walton, V M. 2002. Vine mealybug control, critical management practices. Presentation at the UAP Training Day. Simondium, South Africa.

Note
No Final Report

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