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Symptom of bacterial bulb rot in the scales in an onion.

Two halves of a vertically cut red onion lay face up on a table. All scales look firm and healthy except for the one scale surrounding the inner bud. It is mushy and broken down. Credit: Brenna J. Aegerter, UCCE San Joaquin County — Credit: Brenna J. Aegerter, UCCE San Joaquin County

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