very interesting history behind the spinosad. i know wikipedia isnt always the most reliable but they say "The active ingredient is derived from a naturally occurring soil dwelling bacterium called
Saccharopolyspora spinosa, a rare
actinomycete reportedly collected from soil in an abandoned rum distillery on a Caribbean Island in 1982 by a scientist on vacation
[1] . It has not been found in nature since that time, and was subsequently described as a new species. The bacteria produce compounds (metabolites) while in a fermentation broth. The first fermentation-derived compound was formulated in 1988. Spinosad has since been formulated into insecticides that combine the efficacy of a synthetic insecticide with the benefits of a
biological pest control organism."
thanks a bunch for the info. my local hydro shop didnt have it so i got some gognats instead. they said it worked good. i will try and keep posted my results.