They kill the trees by disrupting the flow of water and nutrients from the roots. (discovermagazine.com)
One is the movement of water and nutrients from the roots to the leaves in the canopy, or upper branches. (scientificamerican.com)
As a growing plant extends its roots into the soil, the new cells that form at their tips assume different roles, from transporting water and nutrients to sensing gravity. (sciencedaily.com)