onion smudge

English

Noun

onion smudge (uncountable)

  1. A disease of the onion caused by the fungus Colletotrichum circinans which causes black concentric rings or smutty spots on the outer scales of the bulb, or rot in the fleshy leaves inside.
  2. The fungus Colletotrichum circinans.

Further reading
  • Pestnet
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