Sunday, September 16, 2012
A powerful lightning strike
Large pecan trees are hit by lightning because the tree's sap acts as a better conductor of electricity than air. As the electrical charge passes through the tree, it heats the sap so fast it boils with explosive energy. It is this rapidly expanding water vapor that actually explodes wood and bark from the tree.
The question now becomes, "will this tree survive?". Most healthy pecan trees, including this one, will eventually heal over the wound created by a lightning strike. In fact, a quick walk through almost any native pecan grove will reveal several trees with old lightning injuries callused over but still very visible.