Graduate Student Discovers, Names Bacterium Linked To Psyllid Yellows

Allison Hansen, a doctoral student in entomology at the University of California, Riverside, has discovered and named a new bacterial pathogen that could be responsible for "psyllid yellows," a disease that infects and kills tomato and potato plants. The disease is spread from plant to plant by the psyllid, a sap-sucking insect.

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