Determination of resistance to fungicides in powdery mildew (Uncinula necator)

Project Number
WW 06-13

Project title
Determination of resistance to fungicides in powdery mildew (Uncinula necator)

Project leader
Ferreira, J H S

Project description
The aim of the project is to determine if resistance to the sterol biosynthesis inhibiting (SBI) fungicides occurs in powdery mildew and to determine whether the sexual stage of the fungus, which plays an important role in the occurrence of resistance, is formed in South African vineyards.

Presentation(s)
Halleen, F and Holz, G. 1997. Occurrence and viability of Uncinula necator cleistothecia on grapevine in South Africa. Presentation to the South African Society for Plant Pathology, Badplaas, South Africa.

Halleen, F and Holz, G. 1997. First Report of cleistothecia on grapevine in South Africa. Paper presented at the International Table and Raisin Grape Symposium. 26 November – 5 December, Cape Town, South Africa.

Halleen, F and Holz, G and Ferreira, J H S. 1998. Reduced sensitivity of South African Uncinula necator isolates to triazole fungicides. Paper presented at the 3rd International Workshop on Grapevine Downy and Powdery Mildew. 21-28 March, Loxton, Australia.

Article
Halleen, F, Ferreira, J H S, Holz, G. 2000. Resistance in Uncinula nectar in triazole fungicides in South African grapevines, South African Journal of Enology and Viticulture, Mnth 21 v. 2 (p. 71-80)

FinalReport.pdf

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