Garlic Diseases: White Rot

12/19/2014 5:02:00 PM

Tags: Garlic, British Columbia, Canada, Andrea Cross

In my next series of posts, I will discuss various diseases that infect garlic, and different ways to treat them. In this post, I will consider white rot, perhaps the most severe allium disease. White rot is an insidious fungus that can render soil unusable for garlic for decades. Also known as Sclerotica cepivorum, it occurs in many parts of the world, affecting alliums such as onions and garlic. This disease is a particular nightmare for organic growers, since the fungus is nearly impossible to remove effectively once a field has been infected.

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  1. I hope you’ll be addressing rust too. We’ve grown garlic for maybe 25 years. In the last two years we’ve encountered the rust problem where the leaves start dying out with brown stuff growing on them. Of course the bulbs are very small. We always follow tomatoes. I wonder if that could be the problem. This year we’ve changed our system. We have planted in three different places, none of them in former tomato beds. Maybe that will fix the problem.