[ fahy-tof-ther-uh ]
/ faɪˈtɒf θər ə /


any of a group of fungi of the genus Phytophthora, which cause a serious plant disease, especially affecting apple and pear trees and potatoes.

Nearby words

  1. phytonutrient,
  2. phytopathology,
  3. phytophagous,
  4. phytophlyctodermatitis,
  5. phytophotodermatitis,
  6. phytoplankton,
  7. phytoplasm,
  8. phytoplasma,
  9. phytoremediation,
  10. phytosanitary

Origin of phytophthora

< New Latin (1876), equivalent to Greek phyto- phyto- + -phthora, feminine of -phthoros, verbid of phtheírein to destroy Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for phytophthora

  • Late Blight (Phytophthora infestans) is the same fungus as the late blight of potatoes, affecting both foliage and fruit.

    The Tomato|Paul Work
  • Among them are the vine mildew (Peronospora viticola) (Fig. 35), the potato fungus (Phytophthora infestans), and many others.

  • We must remember that prior to 1860 the life-history of Phytophthora was not known.

    Disease in Plants|H. Marshall Ward