Knowledgebase

garlic mold #567837

Asked June 06, 2019, 1:35 PM EDT

Hello,

I started 3 varieties of garlic last fall.  They were progressing nicely.  I cut the scapes 2 weeks ago, but I've noticed that quite a few of the garlic are dying, i.e. almost all the leaves except top 3-4 are browning. When I pull out those garlics, the bulbs are much smaller than expected and there is a lot of mold.  See picture.  Any advice?  

Thank you!
Van



Montgomery County Maryland

Expert Response

Hi- we cannot confirm a diagnosis via the photo but the symptoms observed are consistent with white rot, a devastating fungal disease that affects members of the onion/garlic family (Allium). Pull out and bag up all affected plants and put them out with your trash.

Hopefully you can plant garlic in the fall in a different part of your yard. This disease remains viable in the soil for many years even when alliums are not planted. It's critically important to only plant certified, disease-free garlic. Don't plant garlic that you buy in a food store as it can appear asymptomatic but carry diseases.

Our web page on this disease:
https://extension.umd.edu/hgic/topics/white-rot-alliums
Jon

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