Plant Diseases & Pests

Blight

Definition

A rapid and extensive browning, wilting, or death of plant tissue caused by bacterial or fungal infection. Potato late blight (Phytophthora infestans) caused the Irish Famine; fire blight (Erwinia amylovora) devastates apple and pear orchards.

More Plant Diseases & Pests Terms

Explore Plant Species

See how the concept of "Blight" applies across different plant species.