This is an interesting topic (I hope! :)). The
idea is to get at some of those root diseases, obviously, but I am not sure this
is the right way. You have to think about the critters in the tea
more.
If you inject a fungal tea to try and get
beneficial fungal into the soil foodweb, for example, and kill the fungi in so
doing, then you have fungi foods that the bad fungi can use. Very tricky.
I would think you would want to make some holes and pour tea in as in after
aeration. And once they survive is the tree going to be putting out enough
exudates for the beneificals to survive (actually Shigo suggests a dying tree
might!) Anyhow, what are those fungi going to eat down there?
I am pretty sure you will get better results with
aeration, perhaps followed by an application of some gentle microbe
food like soy bean meal followed by some good fungal compost tea with
mycorrhizal and then an application of two inches of fungal compost/humus topped
off by the tree's own leaf.
This way you get to control what is going on. You
know the critters in your tea are fine. No guesses and you get the
microarthropods and worms in the act so you get nutrient cycling...in
this case ammonium, the kind your tree needs. There is stuff for
everyone to eat and the mulch helps buffer the moisture flow from the soil to
the atmosphere.
And, I will go one step further, though you may
laugh.....depending on the size of the diameter around the tree you need to
treat, you might want sprinkle baby oatmeal on the ground before you apply
compost and mulch. You will get great fungi if your compost has good
fungi!
Jeff
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