Competition

Koa is one of the most valued of tropical woods. A particular type of koa tree, called Acacia koa, is found in the Hawaiian Islands. The wood from this tree...

Test your knowledge about native organisms, fungicide, and timber.

In the Western United States, shallow rocky soils and a dry climate often make it hard for new trees to grow in areas that have been harvested of older trees....

In the Western United States, shallow rocky soils and a dry climate often make it hard for new trees to grow in areas that have been harvested of older trees....