Grr!! Something's eating my cannas and coleus.

The Bt is not genetically modified, the corn is that macbrine is referring to. Unless you grow all your own veg. and fruit you are eating something on every mouthful you eat, Even "organic" does not mean that it was not sprayed with anything, it means that it was sprayed with organic compounds whether insecticides, fungicides, miticides, etc. Unfortunately there is no way to police what you buy for gmo or not, either. Personally, I think you are fairly safe using the Bt if you choose. the bacteria starts to deteriorate within a day once it is exposed to UV light.