|This shows root graft between two Oaks. Oak Wilt is
easily transmitted this way.
There is more and more evidence that these neural networks allow trees to work cooperatively. If a tree is stronger and better situated -- perhaps where water is more available -- it can actually send fluids over to its thirstier cousin. And the same seems true for nutrients and beneficial fungi. "A little more phosphorus over here, please."
Here's a link to an interesting video made by Professor Suzanne Simard of the University of British Columbia. She suggests that these underground connections are sophisticated enough to be actually called communication.
- Michael Almstead, VP and arborist