Jump to content
Michigan's Invasive Species Community

Recommended Posts

  • 3 weeks later...
Posted

Here are a few resources discussing stem injections for knotweed. The typical recommendation is using an undiluted concentration of glyphosate and injecting each stem with 3-5ml. This does not work on small canes (canes need to be about 1/4 inch diameter or larger) so smaller plants may need to be hand-swiped or foliar sprayed. Hope that helps!

http://www.weedwarriors.us/Knotweed project on May Creek 2010/Knotweed IPM Profile & Information.pdf

https://www.invasive.org/gist/moredocs/polspp01.pdf

Posted

For anyone else interested, there is also a hollow stem injection section on page 9 of the Rodeo label that addresses max application for injection. "Do not apply more than a total of 8 quarts of this product per acre for all treatments combined.  At 5 mL per stem, 8 quarts will treat approximately 1420 stems per acre." Of course, rates will change by the herbicide you choose to use, but I found this helpful.

Rodeo_Label.pdf

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...