Quote:
Originally Posted by Scooty
That was my initial understanding until I stumbled on the following. Try it hydroponically. It works.
https://www.ncbi.nlm.nih.gov/pubmed/16180075
"Surprisingly, when spinosad was applied to the roots of tomato plants in rock wool, excellent control of spider mites was obtained. Apparently, spinosad has systemic properties and quantities as low as 1 mg/plant could protect tomato plants from mite infestation." |
so, even if this works hydroponically it is still only working in rockwool growing media. "Different substrates with varying percentage of clay and organic matter were tested in comparison with rockwool and showed that sufficient control was restricted to the rockwool substrate." I would venture to guess most of us here aren't growing hydroponically?