Quantcast

Is this phlloxera

Wine Making Talk

Help Support Wine Making Talk:

efBobby

Supporting Members
WMT Supporter
Joined
Jun 29, 2019
Messages
235
Reaction score
26
Hmm it’s been a while since I have seen it but I do not think it is grape louse. Not 100% but I remember the “bumps” were uniformly sized and kinda fuzzy up top.

then again these were on natives and may look different on varieties.
 

salcoco

Veteran Wine Maker
WMT Supporter
Joined
Jan 1, 2007
Messages
2,918
Reaction score
1,220
Location
Kansas
yes it is. take Sevin and add to our tank mix to spray each interval it will control the spread
 

balatonwine

The Verecund Vigneron
Joined
May 9, 2017
Messages
1,050
Reaction score
770
Location
Badacsony wine region. Hungary
Not phylloxera. Phylloxera on the leaf has a more gall like appearance, and no "fuzzy" underside.

As already stated, this is a vine mite. It causes no damage to the grapes. But if you have a large infection it can cause enough leaf damage that it can starve the vine and affect the crop. But that rarely occurs. Sulfur sprays in the spring and a regime of integrated pest management can normally control this mite without much effort.

Some may even think this pest is downy mildew, due to the white "fuzzy" looking underside early in the season (late in the season, they turn brown), but it is not.

 
Last edited:

Snafflebit

Junior Member
Joined
Oct 9, 2013
Messages
274
Reaction score
151
Location
San Jose, CA
Thank you to everyone for the info. These galls look very much like erinose mite. It is found on two vines on a few leaves, so it is not an infestation.
 

Latest posts

Top