You've found the famous Dave's Garden website! Join this friendly global community that shares tips and ideas for home and gardens, along with seeds and plants!
Check out the DG homepage for a brief overview of what you'll find in this gardening mega-site.
Login
If you don't have an account yet, visit the registration page to sign up.
The lot we recently purchased has a massive (8-10" diameter) grapevine on it. It had grown and covered a dead tree next to it and the vine is now covered with leaves and setting fruit. However, it has the strangest growths on its leaves and stems - shiney, raised, ruby-red growths. The ends of some stems end in these pea-shaped growths.
Does anyone have any idea what this could be? I researched grape diseases on the internet and it doesn't look like anthracnose - much less powdery mildew or anything else.
Grape tumid gallmaker. A small fly by this name lays its egg within an unfolding bud or shoot tip. Maggot-like larvae hatch and feed on vine tissue. A small (1/8-1/4") reddish gall forms around the larvae as it feeds. Galls can be found on leaf undersides, clusters, and petioles. Although vineyards in New England have reported serious infestations of this pest, it has not been a problem on Long Island. Treatment is not recommended, except in extreme situations
