Things 1 Learned from Dr. Shigo

摘要

On October 6, 2006, a great man, Dr. Alex L. Shigo—who was born in Pennsylvania on May 8, 1930—died of a head injury suffered in a fall at his summer home. News of Dr. Shigo's accident spread quickly through the arboricultural community here and abroad. And, like many others, I was personally samned and saddened by the news. Since then. 1 have been surprised to realixe how many horticulturists are unaware of his groundbreaking work. Shigo was described as the "Sir Tsaac Newton of Trees." I find that an apt description.