This was written in March, 2004.
To call it “proven” is not accurate. That is part of the problem when fighting against deer and elk: it is a long, ongoing war.
The gist was fine but there are a number of specific refinements:
- In an area with elk six feet is not high enough. Six and a half feet is likely enough (particularly for a strong, straight, established tree). It is important to consider that the terrain (e.g., steepness) may make the height of protection seem like much less.
- Chicken wire alone does not assure a solution. Think Like A Beast Tree Protectors (TM) have undergone several key product refinements since this was written.
- Pruning properly has a lot to do with tree health.
- Landscaping basics such as good soil, mulch, water, and fertilizer have a lot to do with tree health.