Return to the Trees Forum | Post a Follow-Up

Spiny Witch-Hazel gall aphid on River Birch

Posted by limestoner PA-6b (My Page) on
Mon, Apr 12, 10 at 21:11

I have two HRB trees in my yard that were both affected by these little bugs two years ago. Last year, no problems but I am noticing a few leaves with the tell tale walnut shell ridges on them. I think I waited too long last time before I had it treated by an arborist and ended up with a bunch of dead branches on one of the trees. I only notice a couple of effected leaves now. Should I ride it out a little or have it treated right away. All the articles I have read online say it does not cause serious problems but looking for some input. The tree really seemed to be improving this year with a bunch of new growth and I do not want to go backwards again. Anyone have any experience or advice. Is there anyway I can treat it myself?

Follow-Up Postings:

RE: Spiny Witch-Hazel gall aphid on River Birch

Quick pro quo - best I can help you with.

"Bark Has Swollen Growths

Cause: Fungal or insect gall

Solution: Prune and destroy branches and growth, or gall.
Avoid injuring bark. Identify the disease or insect causing the growth and treat with a pesticide labled for it."

The Readers Digest Association Inc. Pleasantville, New York/Montreal; The Garden Problem Solver; 1999; ISBN: 0762101407


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Trees Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here