What is frill treatment in herbicide application?

Frill treatment, often referred to in herbicide application, specifically involves making cuts or "frills" into the bark of a tree and then applying the herbicide directly into these cuts. This method is particularly effective for targeting certain types of vegetation, especially woody plants, as it allows the herbicide to enter the vascular system directly, ensuring more efficient uptake and systemic action.

This localized application minimizes the exposure of other plants and the surrounding environment to the herbicide, which can be a significant advantage in managing unwanted vegetation in sensitive areas. It also reduces the likelihood of runoff and off-target damage that can occur with broader applications. This targeted approach is commonly used in forestry and vegetation management to selectively eliminate invasive species or unwanted trees while minimizing impact on desirable plants nearby.