How to use roundup on large stumps

Written by nina stanley
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How to use roundup on large stumps
You can use Rondup on a freshly cut stump. (tree stump image by Radoslav Lazarov from

Using glyphosate, or Roundup, is an easy and inexpensive way to kill large stumps. Although glyphosate is often used as a foliar application, it works effectively on freshly cut stumps where living tissue is still exposed. With that being noted, timing of application is critical when using an herbicide application for killing large stumps. Always read herbicide labels and follow in accordance with application. Glyphosate should not be applied directly to water or near bodies of water to prevent the risk of pollution.

Skill level:

Things you need

  • Glyphosate
  • Paint brush
  • Cup (optional)
  • Dish detergent (optional)
  • Dye (optional)
  • Gloves
  • Jeans
  • Closed-toe shoes
  • Long-sleeve shirt
  • Eye protection
  • Mask

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  1. 1

    Buy an undiluted strength of glyphosate (Roundup). Glyphosate can be purchased at any home and garden store.

  2. 2

    Put on protective equipment. Protective equipment includes eye protection, jeans, closed-toe shoes and a long-sleeved shirt. The Material Safety Data Sheet also recommends wearing a mask to prevent inhaling fumes.

  3. 3

    Gather materials needed. A paint brush is ideal to use and provides an easy way to applying glyphosate to the stump. Furthermore, pouring enough glyphosate into a cup can reduce waste and provide easy access to dip the brush into.

  4. 4

    Consider using a carrier. A carrier can be a few drops of dish detergent added to the glyphosate in order to keep the herbicide sticking to the stump. Dye can also be used in order to mark where glyphosate was applied.

  1. 1

    Go to a freshly cut stump. Applying the herbicide to the stump as soon as possible after it is cut will have the best results. A fresh cut exposes living tissue that will carry glyphosate to the roots.

  2. 2

    Cut off any sprouts. Freshly cut sprouts provide more area to apply glyphosate.

  3. 3

    Cut the stump again if it is not close to the ground. The stump should be as close to ground as possible to prevent the herbicide from running off.

  4. 4

    Remove any sawdust or debris on stump. Sawdust will absorb the herbicide, preventing it from being exposed to the living tissue.

  5. 5

    Dip your paint brush into glyphosate and apply to stump. Gently brush it on to prevent any splatter and to accurately cover the entire area of the stump.

  6. 6

    Dispose of any leftover herbicide when finished. The Material Safety Data Sheet recommends wrapping the paint brush and cup in newspaper and throwing it away into trash. Do not reuse the brush or container unless it will be used for glyphosate treatment at a later use.

  7. 7

    Wash hands thoroughly and remove clothing after use. Washing hands and removing clothing prevents cross-contamination with food or drinks which might cause serious health effects if accidently ingested.

Tips and warnings

  • Apply glyphosate on a day when there is little or no wind.
  • Always read pesticide labels and know emergency contact information.

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