for the long delay in answering your email; have just returned from the Nancy
aroid conference, followed by visits to Josef’s collection in Munich and a
spell in the Beccari Herbarium, Firenze.
think it would definitely be beneficial to try inoculating. I would also try
some larger leaves; we use whole leaves of Meliaceae and Ficus (ca 3 – 4 cm x 2
cm or more).
[mailto:email@example.com] On Behalf Of STARSELL@aol.com
Sent: 05 July 2009 10:07
Subject: Re: [Aroid-l] Alocasias
I use a commercial mycrorrhizal fungi for some things when
I pot them. I don't think I have used it on the alocasias.
Would it be a good idea to sprinkle a little of it into the
What I have done since your advice via email is that I have taken
the two species and put each into a pot that is almost half filled
with sandy-loam, laid the tubers onto that and just pressed them
to get good contact, then I scooped from an area where I let
leaves from last fall and even before accumulate. They are
of leaves, all maybe 1/2 inch or so.
I filled the remainder of the pot with these and wet the leaves.
They seem to stay moist rather well.
I am considering inoculating all of my alocasias with the
now. Almost everything that got re-potted this spring got
Thank you so much! This is some of the best, most usable
In a message dated 7/3/2009 9:00:46 A.M. Central Daylight Time,
factor that is only now becoming clear is that Alocasia, and many other
terrestrial aroids too, I suspect, have some mycrorrhizal association. I first
began to suspect this on finding super-vigorous specimens with infeasibly small
root systems in the wild. Clearly the roots were too small to support the
nutrient uptake that the plants needed, and yet the plants were thriving. The
point was reinforced by observations of litter-trapping Schismatoglottis,
notably species in the S. barbata complex, where investigation of the
leaf litter revealed copious fungal hyphae and significant composting of the
oldest leaf litter, with the plants rooting from the stem and through the leaf
bases into this composted material and the decomposing leaves above. >From our
experiments we have observed a beneficial fungal population developing in the
leaf litter within a couple of months, and a notable increase in plant vigour at
this time. In fact, we no longer apply fertilizer to our plants (a considerable
saving in time and money with ca 10,000 individual pots...) and this despite
the fact that the nursery receives 5+ m of rain per anuum, and thus the
flow-through of nutrients from the pots must be considerable.