I imagine the hard walls of plant cells helps keep bacteria and virii at bay, but there's plenty of fungi that infest trees. Oak wilt is a rather pernicious loc

I imagine the hard walls of plant cells helps keep bacteria and virii at bay, but there's plenty of fungi that infest trees. Oak wilt is a rather pernicious local threat. The programming language Rust is named after a type of fungus that attacks plants. It's out there, but trees don't run around screaming, so it's not something that people tend to notice.