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Burning below-ground plant parts and damaging and destroying internal fluids and tissues are ways that lye kills weeds. The herbicide in question (sodium hydroxide) raises soil pH levels to unsustainable ranges of 13 or 14 on a scale of 0 to 14, where many plants hover between 5.5 and 7.0. It will require personal protective equipment, from head to foot, by its user and surveillance of immediate and subsequent effects since lye damages and destroys everyone and everything in the immediate area of application.

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9y ago

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