Harvey Updyke -- the Alabama fan who gained national fame for poisoning the famous oak trees at Auburn in 2010 -- has died ... his son said Thursday.
He was 71 years old.
Bear Updyke added to AL.com his father passed away of natural causes.
Harvey became a part of college football history back in the 2010 season ... when he called into The Paul Finebaum Show and admitted to putting poison on Auburn's beloved Toomer's Corner trees.
"Let me tell you what I did,” Updyke said.