Hi Mike, As a person who studies fungi, I have some input on what you may have observed. The wood decay fungi which you have seen as white filaments on the wood tend to be more specific in eating just wood. They are very good at decaying wood, but they also need water and other nutrients. So to do this they send out thick cords (called rhizomorphs) in search of nutrients and water. Of course the best place to get this is inside your pots which remain more moist, complete with some delectable nitrogen. This is why you're seeing the white rhizomorphs inside of the pot. I have pots that have grown very thickly with white fungi but the bulb/corms remains perfectly fine. This is not to say that the fungi you have didn't cause issues for your bulbs, but generally, it's the fungi that you cannot see that you should be worried about. Those are the ones that specifically grow within living plant tissue and cause their demise. Most of the time you can't even see them until the plant has already suffered. Nhu On Sat, Aug 20, 2011 at 3:40 PM, Michael Mace <michaelcmace@gmail.com>wrote: > I believe now that > rot was starting in the wooden slats, and then spreading up into the pots, > where it nailed the bulbs. >