Answer: Downy mildew and rot
What is Malbec susceptible to?

Malbec - Wikipedia

Malbec - Wikipedia

Malbec - Wikipedia

Malbec - Wikipedia

Malbec is very susceptible to various grape diseases and viticultural hazards—most notably frost coulure downey mildew and rot— but the development of new clones and vineyard management techniques have helped control some of these potential problems. When it is not afflicted with these various ailments particularly coulure it does have the potential to produce high yields. Malbec seems to be able to produce well in a variety of soil types but in the limestonebased soils of Cahors it seems to produce its most dark …

Sat Mar 24 2007 14:30:00 GMT-0400 (Eastern Daylight Time) · Malbec can be highly susceptible to coulure but newer clones are being produced with less sensitivity. Coulure is not 100% preventable but a vineyard manager can take several precautions to lessen the severity and impact of coulure .

La malbec es muy susceptible a varias enfermedades de la uva y a riesgos viticul...


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