Why clean plants?. Leafroll virus effects. Delayed maturity Lower sugar content Increased acidity Lower color Decreased crop level. Declining wine quality. Leafroll management costs 83 acre Cabernet vineyard. Leafroll management costs. Costs associated with preventing spread
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Why clean plants?
Declining wine quality.
1994 planting –
11 years of revenue on a 30-40 year investment!!
-visual symptoms surveyed in August.