Trichoderma - Killing Bad Fungus with a Good One

[orchids3]

I read that the Trichoderma grows best between 25-30 degrees C and smells a little like coconut when it is cultured. Maybe I could put the corn meal with the culture in an old sock and hand it in the 55 gal barrel where I mix my fertilizer and pump it onto the orchids. Somewhere I read that cornmeal could be used to control fungus some time ago but the sock of cornmeal was added to the barrel without culturing the Trichoderma first. It was questionable wheather there was a benefit at that time. Will look for the corn meal tomorrow and wait for the weather to get warmer so the greenhouse will be at 80 degrees during the day for a few days.