Consensus Reached on the Cause of Petri's Disease
Through collaboration, international researchers have reached a consensus on what causes Petri's disease (AKA, black goo).
by Mike Porter
Oct 2005 Issue of Wine Business Monthly
For more than a dozen years I have been following a story that has divided many people in our industry. The point of contention relates to where Petri's disease—also known as "young vine decline" and "black goo"—originates and how it can be combatted. While the disease has stubbornly refused to go away, research continues in many corners of the winegrowing world. A consensus has emerged on what Petri's disease really is, why it is and how we can work together to prevent infected rootstock from...
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