There's a 3 1/2-square mile specimen in eastern Oregon that weighs 35,000 tons and could possibly be the biggest living thing on Earth, according to researchers at the University of Utah. It caused $1.5 million worth of damage to Georgia's peach trees in only two years. Armillaria ostoyae - the scientific name of the fungus - infects and kills 600 different species of woody plants and it is very difficult to kill this fungus.
CBS News
In search of a humongous fungus
On chilly morning in eastern Oregon, correspondent Conor Knighton headed deep into Malheur National Forest, driving a series of unpaved roads, and hiking far from any trail, all in hopes of finding a fungus – a humongous fungus. I saw somebody up here in a Prius looking for the humongous fungus, recalled Michael McWilliams, a pathologist with the U.S. Forest Service. And I said, You re there. They were like, Where? And I m like, All around you! Does that ultimately end up being more impressive, when you think about it that way? asked Knighton.