Check for Dead Branches Loggers call dead branches widowmakers and treat them with great respect. Homeowners should do likewise. Dead limbs are an accident waiting to happen. They can fall in the slightest breeze, when a mower bumps the tree, or a child climbs in it. They sometimes give way even on a calm day.
Dead limbs are a red-flag signal for prompt action.
Check for Branches that Cross or Rub Branches that cross or rub invariably lead to weak spots. These should be pruned off as soon as they are spotted, and the smaller the better. Determine the Tree's Vigor Evaluating a tree's vigor is somewhat subjective. However, experts say it is the surest early warning that there is a serious health problem in a tree. Vigor is reflected in the amount of leaf cover, and leaf size, color and condition.