Effect of soilborne inoculum on incidence of onion black mould (<i>Aspergillus niger</i>)

Aspergillus niger is the cause of black mould of onions which is primarily a postharvest disease Systematic sampling of soil from onion fields in the Pukekohe/Waikato regions of New Zealand in 2002 and 2003 showed that the highest levels of soilborne A niger occurred in fields that had not been recently rotated out of onions Levels of soilborne A niger were correlated with black mould incidence in bulbs stored at high temperature and high...