Rotting Grapes Don't Improve with Age: Cluster Rot Disease Complexes, Management, and Future Prospects

Sharifa G. Crandall, Jamie Spychalla, Uma T. Crouch, Flor E. Acevedo, Rachel P. Naegele, Timothy D. Miles

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Cluster rots can be devastating to grape production around the world. There are several late-season rots that can affect grape berries, including Botrytis bunch rot, sour rot, black rot, Phomopsis fruit rot, bitter rot, and ripe rot. Tight-clustered varieties such as 'Pinot gris', 'Pinot noir', and 'Vignoles' are particularly susceptible to cluster rots. Symptoms or signs for these rots range from discolored berries or gray-brown sporulation in Botrytis bunch rot to sour rot, which smells distinctly of vinegar due to the presence of acetic acid bacteria. This review discusses the common symptoms and disease cycles of these different cluster rots. It also includes useful updates on disease diagnostics and management practices, including cultural practices in commercial vineyards and future prospects for disease management. By understanding what drives the development of different cluster rots, researchers will be able to identify new avenues for research to control these critical pathogens.

Original languageEnglish (US)
Pages (from-to)2013-2025
Number of pages13
JournalPlant disease
Volume106
Issue number8
DOIs
StatePublished - Aug 2022

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Plant Science

Fingerprint

Dive into the research topics of 'Rotting Grapes Don't Improve with Age: Cluster Rot Disease Complexes, Management, and Future Prospects'. Together they form a unique fingerprint.

Cite this