"Outsmarting Poison Ivy and Other Poisonous Plants" is a great handout from the FDA that provides a concise and thorough guide on how to identify poisonous plants, how to avoid adverse reactions, and how to treat those reactions when they occur.
How to Kill Poison Ivy Combine 1 gallon white vinegar with 1 cup salt and 2 TBSP blue dawn dish soap. * Once all the ingredients have been mixed well pour mixture into a spray bottle. * Spray poison ivy. Be careful not to get it on your other plants because this mixture will kill anything you spray
Why Use Roundup? Make Your Own Weed Killer Note: spray on the plant, it will kill anything tender that it touches. If it gets in the soil, the salt in it will prevent anything from growing for a few months to several years, depending on how much was used.