Please don’t be fooled by this sales pitch.

“Wind-thinning” is the practice of removing entire limbs throughout the tree. The idea is that this allows more space for the wind to pass throughout the tree, reducing stress on the remaining limbs.

This practice has been thoroughly debunked. The removal of surrounding branches makes the remaining branches more vulnerable. Also such aggressive pruning can significantly reduce the amount of solar energy a tree can collect.

The best approach is outer canopy reduction (see “Reduction”). This reduces the wind resistance and weight of each limb, while maintaining energy production.