"Myrtle rust" sounds almost cute. It's not. Austropuccinia psidii is a highly invasive fungal pathogen native ... such as new types of prickly pear cactus (Opuntia spp.). Early warnings like ...

Rust fungus, despite a name that would make homeowners think it would grow on iron, is a notorious nuisance when it comes to lawns. This fungal disease, primarily caused by the fungi in the genus ...