Bloom Your Career: Ace the Indiana Horticulture Exam 2025 – Cultivate Success!

Wound dressing should generally not be applied to pruning cuts over 2 inches in diameter because research has shown that these dressings can actually hinder the tree's natural healing process. Trees possess natural mechanisms to compartmentalize and seal wounds, which prevents the entry of pathogens. The application of wound dressings can trap moisture and create a favorable environment for decay fungi and other pathogens, ultimately leading to increased vulnerability and decline in tree health.

The practice of sealing wounds can also interfere with the tree's ability to produce new growth and can delay the natural healing response. Instead, it is advisable to allow the tree to heal on its own without interference, as this promotes healthier recovery and overall resilience.

In specific circumstances, such as when certain pathogens are prevalent, or in cases of exotic pests, alternative strategies may be examined. However, under normal conditions, it is best practice to avoid applying wound dressings to larger pruning cuts.