Pacific Northwest 1998 An Online Guide to Plant Disease Control

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OSU Extension Office
 
Hyacinth (Hyacinthus orientalis) -- Bacterial Soft Rot
 
Cause: Erwinia carotovora subsp. carotovora, a bacterium that survives on plant debris. The disease is widely distributed but occurs infrequently.
Symptoms: Flowers do not form or open irregularly and rot. Flower stalks frequently rot at the base. The top of the bulb may be rotted.
Cultural control:

  1. Store bulbs under dry, well-ventilated conditions. Do not heat or freeze.
  2. Plant only sound bulbs.
  3. Avoid overwatering.
Content edited by: Jay W. Pscheidt on January 1, 2009
 
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