Anyone ever use naturalis?

Apparently every insect has a fungus that targets it. THis is a mix of spores that like to eat our main enemies. Here is an article about it's use for veggies: http://www2.warwick.ac.uk/fac/sci/whri/research/entomopathogenicfungi_/spidermite/

Looks like great stuff - just not sure about using it in the grow rooma nd how close to harvest.

http://www.troybiosciences.com/product_plantProtection_naturalisL.asp