Pretty good stuff for an organism found in an abandoned rum factory. 
I used Captain Jack for a couple of years... it meant death to most bugs but I found it didn't work on whatever was eating my cole products.
For the past several years all that I've sprayed with is permethrin and sulfur.
So far it's worked well, but there are no other gardens within 1/2 mile; and if I plant my main potato crop after July 4th the potato beetles leave me alone.
I used Captain Jack for a couple of years... it meant death to most bugs but I found it didn't work on whatever was eating my cole products.
For the past several years all that I've sprayed with is permethrin and sulfur.
So far it's worked well, but there are no other gardens within 1/2 mile; and if I plant my main potato crop after July 4th the potato beetles leave me alone.