The gene to produce this toxin is taken from the bacteria and introduced into Corn Cotton and other crops.
The toxin is also used DIRECTLY as a pesticide.
Thus the study that points exclusively to GM crops as the likely source of this Bt toxin doesn't seem to want to deal with the fact that this stuff is also sprayed directly onto non GM crops.
Smells like an agenda to me.
Bacillus thuringiensis (or Bt) is a Gram-positive, soil-dwelling bacterium.
In reality, organic farmers are the ones who use in on non-GMO crops.