I haven't used the product, but I noticed the bacteria in it acts as a broad spectrum preventative bio-fungicide which means it will also kill beneficial fungi. I am just starting to learn a little about greenhouse production and am not qualified to comment on that type of application.
However, this product is also labeled for use as a soil drench in nurseries for
woody ornamentals and forest seedlings. A better strategy might be to out compete the pathogens by promoting the growth of beneficials as the seedlings will be better perpared to fend for themselves once transplanted.
The nation that destroys its soil destroys itself.
Franklin D. Roosevelt