A healthy stand of poison oak along the trail in the Los Osos Oaks State Reserve along Los Osos Valley Road. New leaves are shiny with oil that includes urushiol, the itch causing ingredient.
A healthy stand of poison oak along the trail in the Los Osos Oaks State Reserve along Los Osos Valley Road. New leaves are shiny with oil that includes urushiol, the itch causing ingredient. David Middlecamp dmiddlecamp@thetribunenews.com
A healthy stand of poison oak along the trail in the Los Osos Oaks State Reserve along Los Osos Valley Road. New leaves are shiny with oil that includes urushiol, the itch causing ingredient. David Middlecamp dmiddlecamp@thetribunenews.com

Climate change is making poison oak stronger

June 25, 2016 1:16 PM

About Weather Watch

John Lindsey

@PGE_John

John Lindsey writes Weather Watch, a weekly column for The Tribune. He is PG&E's Diablo Canyon meteorologist and media relations representative. Email him at pgeweather@pge.com .