"Greenie LeBrun" wrote:
Bacillus thuringensis (Dipel)

Emma wrote:

where the hell do i get that and how much does it cost?


You'll find Dipel at any nursery, garden centre, etc (you'll
even find it in the garden section at the local Kmart or Big
W). Costs around $10-$15 a pack. It's sold as sachets of dry
spores of a strain of BT. The bacterial strain commonly sold
is fairly specific to caterpillars (kills some species
better than others) and won't effect other insects even if
they eat the affected caterpillars.