Puccinia nakanishikii

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Puccinia nakanishikii asexual spores
Author(s): Cesar Calderon, USDA APHIS PPQ
Source: IPM Images

Puccinia nakanishikii Dietel 1904

The fungus causes rust on lemongrass (Cymbopogon). Leaf symptoms include tan to purplish necrosis. Urediniospores are pyriform to globose, orange to crimson, slightly echinulate, and approximately 30 x 20-25 μm large. No aecial host is known for this pathogen.