Hi Mike, when i was working in a wholesale nursery long ago, i saw this > sort of problem many times. I did some courses on root rots & collar rots > etc when we started loosing many thousands of plants literally over night. > Growing on wood "especially soft wood & some pine" was a problem for us too > & it was highly recommended not too, due to its moisture retention > properties & not so much the wood causing fungus or disease its self, but > making disease much more readily transferable from pot to pot. Just as a matter of interest, i always learned never to use soft woods or horse manure in mixes, because they both easily carry root rot. But i actually use a fine semi composted mixed hard & soft wood blend in all mixes now days & i add it to my raised, spoon drained, growing beds at 30 to 50% to any garden soil at regular intervals to help airate the mix & the worm populations explode along with heaps of fungal & bacterial growth, It is also a good environmental choice, due to its high ability to carbon store for long periods, i have never had rot problems even in the soggiest weather in sub tropical Queensland. Best of luck ! Steven > 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. > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >