This mod add a shortcut that allow to order a deconstruct that only target dead tree see https://wiki.factorio.com/Tree. I only take into account the leaves stages.

Options (per Player)

• You can choice the percentage, 100% dead, 75% dead, 50% dead, 25% dead, 0% dead, or any value you like. 0% dead will kill all trees. For vanilla, only previous listed value is useful. Default is 100%.

Inspired by https://mods.factorio.com/mod/dead-tree-selector