creeping charlie

Discussion in 'Pesticide & Herbicide Application' started by chefdrp, Aug 1, 2003.

  1. chefdrp

    chefdrp LawnSite Bronze Member
    Posts: 1,384

    How do i get rid of creeping charlie?Any help would be helpful. Is it to late in the year for weed and feed? I am in western ny.
     
  2. Team Gopher

    Team Gopher LawnSite Platinum Member
    from -
    Posts: 4,041

    Here is an answer I found from this site.


    Creeping Charlie, or "Ground-Ivy," (botanical name 'Glechoma hederacea') , is one of the more difficult weeds to eradicate from lawns and gardens. It is not an un-attractive plant, and some gardener newbies will encourage it only to discover its bad traits,...extreme invasiveness. It has a lilly-pad shaped leaf and a distinctive aroma when its leaves are crushed. If an area is indeed over-run with it, you may have to spend several seasons working to eradicate it totally.

    Web-image of Glecoma:
    http://www.vancouver.wsu.edu/fac/robson/cl/natrs301/dicots/grndivy.htm

    Ground Ivy spreads mainy by extending its vine-like stems over the surface of the soil and it can go some distance without sinking any roots along the way. It can spread remarkably fast, generally becoming more dense and mat-like in the older regions of what can amount to a gigantic single plant with inter-connected regions.

    In lawns and gardens, you can usually tell where the Ground-Ivy got its main start in the area. Work to eradicate this weed from the periphery inwards towards its central origin-hub;... this way, over-time, you can be sure you are preventing its spread to wider areas.

    Just a small fraction of its nodal vine-like stems, when broken off from the parent plant, can take root to start a new plant. Sometimes you can just rake-up quantities of the mass of the plant and totally dispose of it to help keep it in control. Do not add Ground-Ivy debris to compost piles.

    Prevent a weed from producing flowers and seeds, and you can eventually control it. One flower on the stem of certain weeds can mean hundreds of seeds will be spread near-by, so it is efficient control to prevent weeds by simply preventing seed formation with existing plants.

    Just occasional use of a trimmer to slash the plant to the ground to keep a few weeds from spreading by seeds can often eliminate it from the lawn.

    Whenever you can mow over ground-ivy or use a trimmer on it,... be sure you collect as much of the clippings as possible. Using a mulching mower on it only helps to spread it.

    CHEMICAL CONTROLS:

    Where you have the weed concentrated in dense patches or clumps in a lawn or garden you can use a total kill "Broad-Spectrum" herbicide like ROUNDUP to destroy it. This is a powerful chemical that kills virtually any herbaceous non-woody plant with a green leaf.

    When applied to weeds in a lawn,...ROUND-UP will also kill ambient grasses and plants which you will have to re-establish after the weeds are gone. If this chemical is carefully spot-sprayed or applied by brush-methods, the need to re-seed lawn grasses will be greatly reduced.

    Learn about ROUND-UP ('Glyphosphate') from the Monsanto web-site:
    http://www.monsanto.com/monsanto/layout/products/default.asp

    Other chemical alternatives include REPEATED treatments with a BROAD LEAF POST-EMERGENT HERBICIDE. One report claims using house-hold BORAX (Sodium borate) on Glechoma is very effective in killing it. Herbicides generally work best when applied to young actively metabolizing plants and when the weather is on the cool side. Early spring is the best time to try to get ahead of the weeds.

    Prevent or Supress Weed-Seeds.
    Any weed that can produce seeds will cause zillions of more weeds in the lawn. Some of the seeds will fall directly to the ground from the mother-plant and many others are spread by the wind. Many weed seeds can stay in the soil for years before sprouting. Work to keep the weedy plant from making the flowers that become the seeds will do much to prevent next years weed crops.

    Using a PRE-EMERGENT HERBICIDE on any lawn regularly, especially in the Fall and Mid-winter will do a great deal to prevent annual and some perennial weeds from ever getting started...these chemical stop seed germination (sprouting).

    Any garden center will have a variety of weed-killing chemicals and all the tools and equipment you should need to control weeds.
     
  3. monthly use of dicambi will kill it follw label instructions. watch excessive use under trees and shrubs

    tim
     
  4. GroundKprs

    GroundKprs LawnSite Bronze Member
    Posts: 1,969

    Dr. Eric Kohler has just finished a 3 year study of ground ivy. He worked with ground ivy samples from numerous states and Canada, and actually found that different strains of the plant are affected differently by different chemicals. So a national discussion of how to control it will find many answers, some of which won't work for you in your environment.

    Most recent result from Dr. Kohler I could find is here: http://www.agry.purdue.edu/turf/report/2002/page122.pdf . Note synopsis for control at top of last page.

    Other reports on the study as it proceeded can be found at http://www.agry.purdue.edu/turf/report/2002/ and http://www.agry.purdue.edu/turf/report/2001/ .
     
  5. Hometown Lawn Care

    Hometown Lawn Care LawnSite Member
    Posts: 147

    Creeping Charlie has a deep tap root huh? those are hard to get by hand.
     
  6. heritage

    heritage LawnSite Bronze Member
    Posts: 1,249

    Try an ester fomulation herbicide like super trimec when temps are below 65F. in the fall. that usually gets it in one spray and stay away from dripline from any trees and or shrubs if dicamba is one of the ingredients.....read the label.
     

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