CAPT38
Yes, I have, although Trichoderma products aren't exactly cheep. I think the best source I found is from Bioworks.
BioWorks Inc. However because of cost, for now I'm using general hydroponics
sub-culture b. Though the sub-culture B isn't a straight Trichoderma product, it does contain Trichoderma fungi spores. I can get it locally, and runs me about $40 for 7 oz. When I get some money rolling in from the greenhouse, I plan to switch to the Bioworks product for the Trichoderma. But I need to have it shipped from a vendor, and if I remember correctly I think the smallest quantity is about a pound and runs about $90+tax and shipping.
The Mycorrhizae fungi is much cheaper. A one pound container runs me about $12-$13 xtax, and I can get that from the hydro shop here in town as well.
Rooters Mycorrhizae S.P. 1lb.