Onion Twister Disease

19 Mar 2023

Ink painting/drawing of twister disease of onion, caused by Colletotrichum spp.

The painting shows a tall, thin, distorted onion, with a small cluster of roots at the base, a brown papery sheath, and six chlorotic yellow-green twisted leaves.

Top: Scanned image

Bottom: Photograph

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Phytophthora asparagi

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Ascochyta Chickpea Blight