Young Esca in Australia
Australia over two seasons (1999–’00 and 2000–’01). The affected cultivars were own-rooted Shiraz, own-rooted
Cabernet Sauvignon and Merlot grafted onto Kober 5BB. Some of the Cabernet Sauvignon vines began to show
symptoms as young as two-years-old. Phaeomoniella chlamydospora was the only esca-associated fungus consistently
isolated from symptomatic vines, suggesting that P. chlamydospora alone is responsible for esca symptoms.
Spatial analysis was unable to reveal any consistent pattern of symptom distribution.
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