Matteo Garbelotto, with a decomposing Coastal Oak almost certain of being killed by sudden oak death disease, at the Fairfield Osborn Preserve, a nature reserve run by Sonoma Sate University, East of Rohnert Park, Ca., in Sonoma County, on Tuesday June 1

Matteo Garbelotto, with a decomposing Coastal Oak almost certain of being killed by sudden oak death disease, at the Fairfield Osborn Preserve, a nature reserve run by Sonoma Sate University, East of Rohnert Park, Ca., in Sonoma County, on Tuesday June 19, 2012. Garbelotto is the creator of the SODMAP, a comprehensive map ever put together of sudden oak infections in the Bay Area. Every documented test by researchers at UC Berkeley and UC Davis, Calfire and the California Department of Food and Agriculture is plotted on SODMAP. (Photo By Michael Macor/The San Francisco Chronicle via Getty Images)