Phytophthora

Phytophthora is a genus of fungal pathogens in the order Oomycota (water moulds) of considerable economic importance.

Numerous species, including:

• Phytophthora cactorum - Collar rot
• Phytophthora infestans - Potato blight
• Phytophthora lateralis - a lethal disease of Lawson's Cypress
• Phytophthora ramorum - Sudden oak death, a lethal disease of Oaks and other plants

The scientific name means "plant destroyer"