[deMolay]

That's interesting Tanada, kind of like companion planting for trees. I find this article interesting it explains how the largest organism on earth a fungus. Kills trees by networking underground. http://www.scientificamerican.com/artic ... -is-fungus

[Ludi]

That's the problem we're having here in central Texas with the Oak Wilt - most of the groves of oaks are fused, so if one gets the wilt the whole grove dies.