Poison ivy plants can be difficult to spot until you've brushed up against one and found yourself with a rash. It is important to control poison ivy plants quickly so that they don't spread. Poison ivy usually has three leaves, with the middle leaflet being longer than the other two. By getting rid of poison ivy with salt water and soap, you can keep control of your garden or lawn so that the plant doesn't spread to other areas.
Mix 3 lbs. of salt with 1 gallon of soapy water. The water should contain enough soap that you see bubbles forming.
Put the mixture into a spray bottle. Make sure the sprayer on the bottle has a long enough spray stream so that you don't have to get too close to the poison ivy plant.
Spray the mixture onto the poison ivy plant's leaves and stems. Saturate the plant so that no part stays untouched. This mixture will work to kill the poison ivy plant.
Dig up the plant and its roots once it has died back and place them into a sealed bag. Wear protective gloves and clothing so that you don't get any part of the plant onto your skin.