Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Fusarium rot of garlic bulbs caused by Fusarium proliferatum in North Carolina.

Abstract

In August 2013, bulbs of garlic cv. Chesnok Red, grown and stored under dry conditions by a commercial producer in Buncombe County (North Carolina, USA), showed water-soaked, tan to salmon-pink lesions. Lesions on cloves became soft over time, slightly sunken, and had mycelium near the centre of the bulb, which is characteristic of Fusarium rots on garlic. Approximately 10 to 20% of the bulbs inspected in the drying storage room were affected. Based on colony morphology and reproductive structures, the causal agent was identified as F. proliferatum, which was confirmed by sequence analyses of beta-tubulin, elongation factor 1a and internal transcribed spacer regions. This is thought to be the first report of F. proliferatum causing bulb rot of garlic in North Carolina.