Weed Control

Creeping Bent Grass


sheppy added on September 24, 2017 | Answered

Hi, I live in Wilmette, IL My lawn has creeping bent which has been showing up ,along with other similar lawn issues in the area. I have been told the entire lawn must be tkilled with roundup and wait 10 days (other estate said it needs 2 applications) and one said to sees the other said mineral sod. Question is now a safe time for sod? I was told it was and even onto November. Seed not until next August. Both are very reputable companies and same price. Seed company willl be about $1000 more for sod. Thank you for your articles! Thank you very much. Adrienne


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ANSWERS
Downtoearthdigs
Certified GKH Gardening Expert
Answered on September 26, 2017

the only option I could find that has a high probability of working is to first kill the affected patches of your lawn (including about 6 inches around the obviously affected patches) with a non-selective herbicide such as glyphosate (Roundup). The effective time for treatment is when the grass is green and actively growing in spring or fall, not when it’s brown and dormant in mid-summer. Once the grass in the treated area is dead, rake it out and reseed the spot. However, since the seeds can survive a year, you will need to also treat your lawn with a pre-emergent product in the fall and the following year. A non-toxic choice includes products composed of corn gluten.

It may be possible to control without killing off your entire lawn.
This link has more information.

http://plantscience.psu.edu/research/centers/turf/research/annual-reports/2008/kaminski6.pdf

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