![Onion center rot is a devastating disease for Vidalia onion producers in south Georgia.](https://secure.caes.uga.edu/news/multimedia/images/1846/Onions-Tattnall-County-farmstand-low-res.jpg)
Postharvest diseases a concern for onion producers
With Georgia’s Vidalia onion harvest approaching, growers must prepare to protect their crops from diseases during storage, according to Tim Coolong, University of Georgia Cooperative Extension vegetable specialist.