Controlling Poison Ivy

I have found that a strong (10%) vinegar spray applied to the plants when they first emerge in the spring and then every time you notice new plants or leaves emerging, will keep the plant in check, and eventually kill the plant. You can also use Round up on the plants, but the vinegar will do just as good but it works slower than the chemical. I am one of the few people that has never been allergic to poison ivy or poison oak. I keep it killed out to prevent it from spreading or others getting infected by it. By the way, 10% vinegar is the vinegar you use for canning straight from the jar. Check the label, some vinegar on the store shelves is only 5%. You can use the 5%, but it takes a lot more and does not do as good a job.
We get our 10% vinegar at the local HEB food stores. They have always carried it that I know of. I have also bought it at Kroger's and Albertson's. If you do not see it, ask the grocer, he/she can order it for you. It does not cost much more than the 5% does.
Use caution as it kills everything it touches; don't get it on lawn or special plants.