# Pierce's disease

> English word · Noun

## Definitions
1. A disease of grapes caused by Xylella fastidiosa bacteria.

## Etymology
Discovered in 1892 by Newton B. Pierce (1856–1916; California's first professional plant pathologist) on grapes in California near Anaheim, where it was known as Anaheim disease.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/pierce-s-disease