Return to the Professional Gardener Forum | Post a Follow-Up

 o
Getting rid of Dodder!

Posted by patbruce zone 5 (My Page) on
Thu, Aug 3, 06 at 9:28

I have a few plants in my greenhouse with dodder (yellow stringy parasite) growing in them. It is vining rapidly and twining around several plants now. Does anyone know how to get rid of this? Any help would be appreciated. Thanks Pat


Follow-Up Postings:

 o
RE: Getting rid of Dodder!

From the most recent newsletter at www.carrollgardens.com:

Question: A bright yellow thread-like something has attacked several plants in my garden and appears to have killed them by covering and twining around the stems.

Answer: You have Dodder, a leafless, parasitic, morning glory relative. Dodder is an annual; new plants germinate from seed each spring. If they germinate near a host plant, they will attach themselves to it and extract the carbohydrates from the host. Dodder will bloom with little white blooms and drop seeds for next year's crop. It will sometimes kill the host plant totally.

Every thread of Dodder should be pulled off of the host plant and removed as soon as discovered, preferably before it sets seeds. Once fallen, ripe seed can remain viable in the soil for many years, so it is important to check broadly for several years in areas where Dodder has attacked plants previously. Two inches of shredded hardwood mulch spread upon fallen Dodder seeds will prevent them from germinating.


 o
RE: Getting rid of Dodder!

I've heard that, as a parasite, dodder enters the host plant, and can regrow from points of contact. So, it is not sufficient to remove the dodder itself; one is better advised to prune away the parts attacked by dodder and leave the healthy parts of the plant to grow back.


 o
RE: Getting rid of Dodder!

I've heard the best way is to spray it with a high nitrogen fertilizer. Forget where I heard that, probably on one of the Garden Talk shows I listen to.


 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 Professional Gardener 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