Register free!
Search
 
     

Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 08-29-2008, 09:11 AM
Shepp30 Shepp30 is offline
LawnSite Member
 
Join Date: Aug 2008
Location: Ohio
Posts: 1
knotweed

Hi All

I'm going to begin maintaining the local high school football field after the season this year. It has a major knotweed issue, typically down the middle of the field, between the hashes where most of the traffic occurs. Anyway, have never really dealt with it before. Looking for tips or suggestions. I have read spraying in the fall, a pre-e in the spring followed by another spray late spring and early summer. What products have you used effectively on knotweed, Triplett, Tri-Mec ... 24D?

Thanks
Reply With Quote
  #2  
Old 08-29-2008, 06:56 PM
americanlawn's Avatar
americanlawn americanlawn is offline
LawnSite Fanatic
 
Join Date: May 2006
Location: midwest
Posts: 5,517
knotweed control

Once it emerges, you need an "ester" hericide like Speedzone or Chaser ester to kill it. It can be prevented with pre-emergent products (Barricade, Dimension, etc). On home lawns, it's most common along the curbs & driveways. Short mowing also promotes it. So you might consider core aeration 1,2, or 3 times when ever you can fit it in the schedule without interfereing with the football season. Thick turf is what you need, cuz it prefers thin turf.
Quote:
Originally Posted by Shepp30 View Post
Hi All

I'm going to begin maintaining the local high school football field after the season this year. It has a major knotweed issue, typically down the middle of the field, between the hashes where most of the traffic occurs. Anyway, have never really dealt with it before. Looking for tips or suggestions. I have read spraying in the fall, a pre-e in the spring followed by another spray late spring and early summer. What products have you used effectively on knotweed, Triplett, Tri-Mec ... 24D?

Thanks
__________________
Proud subscriber of TURF Magazine. (thanks Ron)
Reply With Quote
  #3  
Old 08-29-2008, 07:33 PM
HLD HLD is offline
LawnSite Member
 
Join Date: Aug 2008
Location: East-Central SD
Posts: 2
Tri-Mec Plus at the very least. 2,4d is like candy anymore.

I've had great successs on prostrate knotweed by using grazon, but it's restricted use as it contains tordon. Milestone is another good one.

You'll need to make sure no trees are close by where run-off could carry the tordon to them.

And double-check the label. May not be labeled for public use areas. Then again, if you spray after school's out for the summer and before they're back in session, maybe it's not a public use area?

Don't know...
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 11:59 AM.

Page generated in 0.07067 seconds with 7 queries