Tasmanian researchers say cheers to compost tea

摘要

Such is the track record of the most harmful pathogen among the range of fungal diseases that costs Australia's wine industry 100 dollar m a year in lost crops and vineyard spray programs. And the list doesn't end there. Recent research has shown thatas little as l% infection in grapevine bunches can impair the composition and sensory appreciation of wine made from affected fruit. For owners and operators of organically managed vineyards, those concerns are magnified by the limited range of optionsthey have available to combat this invidious pest. Systemic fungicides are completely excluded from their armoury, while wettable sulphurs are restricted by both application rates and the possibility of sulphur residues interfering with winemaking.