If you're struggling with a stubborn tree stump in your garden, you're probably aware of the toll it can take on the surrounding vegetation. Not only does it compete for nutrients, but it may also attract unwanted pests.
Manual Devitalization of the Stump
One of the most reliable ways to deal with this issue is by manually devitalizing the tree stump. This approach involves drilling holes in the stump using an 18mm wood drill bit. Aim for around 20cm in depth per hole, each not exceeding 10cm apart. This allows water to soak deeply into the stump, promoting decomposition as the water freezes and thaws.
Advanced Natural Techniques
An interesting variation of this technique is to place garlic cloves in these holes towards the end of summer. The garlic sprouts release allyl sulfide – a toxic substance that is carried by the stump's sap, subsequently destroying the root system. Following this, the holes should be filled with clay soil to keep water out. This technique is best carried out at the end of summer.
Other Natural Methods
There are other natural substances that can be used to accelerate the stump's decomposition. One option is salt, which extracts the sap from the tree, leading to its death. Nonetheless, be aware that salt can harm other plants as it lingers longer in the soil.
Vinegar, on the other hand, is less harsh but requires multiple applications and persistence. It is best applied directly to the cut section of the stump. Epsom salts (magnesium sulfate) offer a more eco-friendly option, contributing to the stump's death when spread liberally on the cut part and around the roots.
Mechanical Options
For a more hands-on approach, consider the mechanical methods of stump removal. Fire is one option, but it comes with risks and should be employed only with extreme caution.
A safer alternative is the physical removal of the growth rings down to the xylem or pith of the tree. This requires a branch cutter or hatchet, and once the xylem is exposed, it should be treated with soapy water followed by alcohol.
Despite the availability of quicker options like herbicides, they are not typically recommended due to the potential harm they may pose to the environment.