I don't know all the particulars about it, but this site lists it as a high hazard to humans, pets and wildlife, and aquatic life. Scroll to the bottom to the pink background.

I remember back when I grew a lot of roses I decided that most fungicides were nasty stuff and never used them preferring rather to make use of the natural controls that are listed in the blue background at the top of the link.

OMG!!! quess this stuff is going back. they said it was organic. but it sure has a lot of warnings on it! guess I am going to try baking powder and milk on my squash. got butterflies and bees that I want to keep!!! thanks roselee!