What Is Wood Tar?
Wood tar, a byproduct of dry distilling wood, is a sticky black liquid used for its strong odor to repel vermin and protect crops. It separates from wood vinegar during cooling and settling, yielding two distinct layers: a lighter wood tar and a heavier, sediment layer.
Uses of Wood Tar
Employed mainly as a natural repellent, wood tar’s distinct smoky aroma deters wildlife and pests, simulating the presence of fire. It’s also utilized for its disinfectant properties in medicinal products derived from wood creosote.
Characteristics of Wood Tar
Advantages
- Effective against a wide range of pests without harming people or soil.
- Natural material with disinfectant effects.
Disadvantages
- Strong smell restricts indoor use and direct skin contact may irritate.
- Contact with plants can inhibit growth.
Types of Wood Tar
Wood tar is classified into light (soluble) and heavy (submerged) types, based on its density and solubility in wood vinegar. Market-available repellents vary in form, including liquid, granular, and solid, tailored for different applications.
How to Select Wood Tar
Choose based on the repellent’s form, considering factors like the target pest, application environment, and seasonal conditions. Liquid types offer resilience to rain, while solid types may require protection from weather elements.
How to Use Wood Tar
- Liquid Type: Apply in intervals along the field’s perimeter or areas prone to pest infestation.
- Solid Type: Position above ground level to avoid wash-off by rain, encircling protected zones.
- Granular Type: Spread generously, adjusting the application based on plant sensitivity and pest control needs.
When using wood tar products, it’s crucial to consider the specific instructions for each type to maximize effectiveness while minimizing unintended effects on plant growth.