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An application of a pesticide such as Roundup that contains the active ingredient glysophate may kill poison ivy [Toxicodendron radicans]. A severing of the plant from its roots may be effective. Forest and park services often do that to control poison ivy as a thick vine growing up trees. A smothering with heavily weighted-down newspaper and black plastic or cover may work while the plant is young and still grows very close to the ground.

Generally, any weed can be controlled by assiduously applying at least two of three controls: controlled burning, regular spraying, repeated cutting back.

But there may be problems with that approach in terms of poison ivy. Burning is out of the question. The urushiol oil particles become airborne and constitute life-threatening conditions for humans so exposed.

The oil is present throughout the entire plant. So any cutting likewise must be carried out with care. The oil can cause an allergic reaction as much as 1-1/2 years after it has spilled somewhere.

Roundup is not a pesticide it is a herbicide. Pesticides kill life. Herbicides kill plant life .

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14y ago

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