Certified Prevegenics Stump Knocker

Stump Knocker works by introducing a concentrated dose of nitrogen directly into the wood fibers. This nitrogen fuels the natural microorganisms and fungi responsible for decay, significantly speeding up the decomposition process compared to leaving the stump to rot on its own.

While not strictly required, drilling holes into the top of the stump significantly improves the product's effectiveness. Creating channels allows the solution to penetrate deeper into the wood rather than just sitting on the surface.

The timeline varies depending on the size, species, and moisture content of the wood. Generally, you can expect the stump to become brittle and manageable within a few months, though larger or denser hardwoods may take longer.

Yes, it is safe for surrounding vegetation when used as directed. Because it is essentially a nitrogen-based fertilizer, any runoff will simply act as a nutrient boost for the soil, though you should avoid pouring it directly onto the roots of nearby flowers or shrubs.

Stump Knocker is most effective when applied to fresh-cut wood because the fibers are more porous and receptive to the treatment. If you are treating an old, dry stump, you may need to drill more holes and ensure the wood is thoroughly saturated with water before application to help the solution soak in.