Quantcast

Anyone familiar with this disorder?

Wine Making Talk

Help Support Wine Making Talk:

Marctee

Member
Joined
Jun 23, 2014
Messages
42
Reaction score
4
Could it be herbicide in the soil? We've been on this site for six years and never used any herbicide, never, none, naught.
 

balatonwine

The Verecund Vigneron
Joined
May 9, 2017
Messages
1,011
Reaction score
705
Location
Badacsony wine region. Hungary
If you do not use herbicides and there is no chance of spray drift from a nearby source, then a few thoughts:

Cupped tattered leaves are often symptoms of eutypa. But I have never seen this disease in such young vines. This is a tough one. Might be some nutrient issue or mineral issue either too little or maybe too much, especially a sodic soils (which can produces similar symptoms). But could also be a soil structure issue where the vine roots are not forming properly (such as drainage issues).

I also see some edge leaf yellowing on the clover in one photo. I do wonder if this is an issue, and if it is, if it is a related issue (such as spray drift).
 

salcoco

Veteran Wine Maker
WMT Supporter
Joined
Jan 1, 2007
Messages
2,891
Reaction score
1,189
Location
Kansas
2-4-D herbicide an travel three miles on windy day and cause damage on sensitive crops like grapes.

Worst offender is county government spraying roadsides.
 

Marctee

Member
Joined
Jun 23, 2014
Messages
42
Reaction score
4
Actually I'm quite sure now that it's boron toxicity. We r planted on glacial till that is devoid of boron. We used boron in planting, essentially guessing at how much to use. Now I know, less is more.
 

Latest posts

Top