Has anyone tried it on roots though?
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That was my thought...Has anyone tried it on roots though?
I dunno. That isn't designed to kill anything .
Then why use Epsom salts for magnesiumNot sure how plants like sea salt. In soil or water it kills them (speaking of killing!).
I'm just asking here! I would strongly advise against anyone using it down by the roots, but I was worried about NaCl absorption into the leaves. I'd stick with neem in veg, spinosad in flower, and iso/water mix in either. And sticky traps. And mosquito dunks. They're supposed to work on fungus gnat larva.