Transmission of Aster Yellows to Grapevines by Insect Vectors


Project Number
UP KK 01

Project title
Transmission of Aster yellows to grapevines by insect vectors

Project leader
Krüger, K

Institution
University of Pretoria. Department of Zoology and Entomology

Team members
Krüger, K
Pietersen, G
Smit, N
Muller, L

Project description
Problem identification: Aster yellows, a disease caused by phytoplasmas, has recently been discovered in grapevine in the Western Cape Province of South Africa. Phytoplasmas can be transmitted by leafhoppers (Cicadellidae), as well as species belonging to several hemipteran families (Cixiidae, Delphacidae, Derbidae, Flatidae, and Psyllidae). A number of vector species have been identified in other parts of the world. However, the vectors of Aster yellows in grapevine in South Africa have not yet been identified.

Aims: The main aims of the study are: to determine insect vectors of Aster yellows in grapevine and to investigate pathogen/insect vector / host plant interactions to assist with the development of management strategies.

Presentation(s)
Douglas-Smit, N, Pietersen, G and Kruger, K. 2010. Transmission of Aster Yellows to grapevine by Mgenia fuscovaria (Stal) (Hemiptera, Cicadellidae). Current status and perspective of phytoplasma disease research and management. Presentation at the 2nd Meeting of COST Action FA0807, February, Sitges, Spain.

Douglas-Smit, N, Kruger, K and Pietersen, G. 2011. Transmission of Aster yellows to grapevine by insect vectors. Presentation at the 10th Winetech Grapevine Virus Workshop, May, Stellenbosch, South Africa.

Kruger, K, de Klerk, A, Douglas-Smit, N, Joubert, J, Pietersen, G and Stiller, M. 2011. Aster yellows phytoplasma in grapevines: Identification of vectors in South Africa. Presentation at the 2nd International Phytoplasmologist Working Group Meeting, September, Neustadt, Germany.

Kruger, K, Douglas-Smit, N, Pietersen, G, Joubert, J, Stiller, M and Carstens, R. 2012. Transmission of Aster yellows phytoplasma by Mgenia fuscovia (Hemiptera: Cicadellidae). Presentation at the 11th Wintech Grapevine Virus Workshop, May, Stellenbosch, South Africa.

Article
Botha, L. 2010. Vektor gevind vir vergelingssiekte, Landbouweekblad, Mnth Apr (1647) (p. 22-23)

Heyns, E. 2010. Groot deurbraak in fitoplasma vraagstuk, WineLand, Mnth Mar (247) (p. 22-23)

Kruger, K, De Klerk, A, Douglas-Smit, N, Joubert, J, Pietersen, G, Stiller, M. 2011. Aster yellows phytoplasma in grapevines: Identification of vectors in South Africa, Bulletin of Insectology, Mnth 64 (p. S137-138)
http://hdl.handle.net/2263/17777

FinalReport.pdf

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