What consequence can result from performing flush cuts?

Flush cuts, which involve cutting branches or limbs back to the trunk or a main limb without leaving a proper collar, can lead to increased susceptibility to disease. This is because flush cuts remove the natural protective barriers that trees develop. Trees have a defined wound response mechanism that allows them to compartmentalize and seal off damaged areas. When these cuts are made too close to the trunk, it disrupts this natural defense system, exposing the inner wood to pathogens and insects.

Additionally, flush cuts can lead to the formation of dead wood, which can become a breeding ground for fungi and other organisms that may harm the tree. This compromised area may also hinder the tree's ability to heal, further worsening its vulnerability to diseases. As a result, maintaining proper cutting techniques, such as leaving the branch collar intact, is crucial for promoting a tree's health and longevity.