AVRDC International Cooperators'
Fact Sheet

Pepper Diseases


Bacterial Soft Rot
Erwinia carotovora subsp. carotovora


Found worldwide
collapsed fruit



Damage symptoms

Fruits develop water-soaked spots that rapidly expand to entire fruit. Infected fruits will collapse and hang like water-filled bags. During post-harvest, decay generally begins as a stem end rot followed by total collapse of the fruit.


Conditions for development

Bacterial Soft Rot occurs on many fruits and vegetables. The bacterium survives in plant debris, insects, and even in soil. The bacterium enters through wounds caused by insects or mechanical means. Rainfall and high temperatures favor disease development. Harvested fruit can become infected from contaminated wash water.


Control

Rotate with cereals and other non-susceptible crops. Provide good field drainage to enhance drying and reduce soil water splash. Harvest fruit when dry and handle carefully to avoid creating wounds. Avoid washing fruit when possible; if necessary use chlorinated water.

collapsed fruit
Collapsed fruit
 
softening of stem end
Post harvest softening of the stem end
     


Last updated: 2001. 
Information from:
Vegetable Diseases: A Practical Guide. Lowell L. Black, AVRDC.

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