Phytophthora infestans (Montagne) Bary (ITIS)
Late blight (LB), late blight disease, potato late blight, tomato late blight
Peronospora infestans Montagne (ITIS)
Possibly Mexico (Fry and Goodwin 1997)
First appeared in the U.S. in the 1840s; new aggressive strains of the disease were discovered in the 1990s (Fry and Goodwin 1997)
Possibly introduced through infected tomatoes imported from Mexico (Fry and Goodwin 1997)
Disease of potatoes and tomatoes (Fry and Goodwin 1997)
Occurs throughout the U.S.
Distribution / Maps / Survey Status
The section below contains highly relevant resources for this species, organized by source.
State and Local Government
Fry, W.E. and S.B. Goodwin. 1997. Re-emergence of potato and tomato late blight in the United States. Plant Disease 81(12):1349-1357.
Integrated Taxonomic Information System. Phytophthora infestans. [Accessed Sep 18, 2023].