Category Archives: Vine Clinic

Cosa potrebbe essere?

Vine clinic: Pierce’s Disease.

Presenting Symptoms: This past Monday, while prepping the Aglianico block for netting, I noted an Aglianico vine in the first row with a shriveled cluster. This vine has no other signs of Pierce’s disease: it is no less vigorous than others in … Continue reading

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Vine clinic: Causes of shatter.

Presenting Symptom: My Montepulciano vines are showing a good amount of shatter. There are some concomitant findings: The Montepulciano is in the middle of a fulminant Powdery Mildew infection. There is also some leaf discoloration that appeared after my initial … Continue reading

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Which factors delay bud break?

Which factors affect onset of bud break in grapevines, year-to-year? What delays budbreak? Do vines bud later in the season after their first crop? Does water deprivation after harvest affect the subsequent season’s growth? Is there any evidence that older … Continue reading

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Vine clinic: Spots and patches

This gallery contains 4 photos.

I’ve been a distracted vigneron of late. Lots of things happening at home – some good, some tragic. I’ve managed to get some regular doses of sulfur and kaolin on my vines. I still have to fine tune this as … Continue reading

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Vine Clinic: Millerandage

This gallery contains 4 photos.

Millerandage: (French wine growing term). [mil-ROHN-dahdzh  – pronunciation] – refers to the failure of some grapes in a bunch to develop fully, resulting in berries of uneven size. It is often a result of cool weather during flowering. Also called … Continue reading

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Vine clinic: Leaves, Canes and Clusters.

This gallery contains 6 photos.

This gallery showcases some leaf, cane and cluster abnormalities. (the white powdery film on leaves and berries is a combination of sulfur and kaolin) Leaves: Canes: Clusters:

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Vine Clinic: What’s the problem?

A few leaves on my Aglianico back-up vines look a little weird. I am not worried about them. But I wanted to put it to readers: should I be? What are the changes in the photos below?

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