College of Agricultural, Human, and Natural Resource Sciences

Department of Plant Pathology

Researchers acquit guava of spreading deadly fungus

Peever in his lab at WSU. (Photo by Brian Clark, WSU News)

No more pitting guava against eucalyptus when it comes to explaining how a poorly understood fungal disease spreads. That is the conclusion reported by an international team of scientists in the journal Molecular Ecology ( The team used a common forensic technique to clear guava’s good name.

In reaching its conclusion, the team of Brazilians, Koreans and Americans turned to plant pathologist Tobin Peever of Washington State University. At issue was a fungal pathogen called Puccinia psidii that attacks eucalyptus trees.  Read more.

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