Roundup
Roundup (Glyophospahte) does not sterilize the soil. It kills by absorption through the leaves and will not leach through the soil. I saw a comment that sunlight will kill roundup's effectivness after a day of exposure. If that's true it's even better for not killing thing through the soil. I go through 2 1/2 gallons of concentrate every year at our home in NC (4 acres) so far I haven't died. Good luck!
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