A potential customer emailed about Poison Ivy
We have just purchased a house and discovered poison ivy in the backyard. The poison ivy has to be removed from along our fence as well as from our neighbour's yard (has spread under the fence). The patch is approximately 20 linear feet.
A strong mixture of Roundup should kill off most of the plant, Sometimes a second application 6-8 weeks later may be necessary depending on the age of the plants etc.
Young plants should just turn yellow, then brown and shrivel up.
Sometimes you get a mature plant with woody stems. These are harder to kill off in one application. And if possible you may want to physically remove the woody portion as even a dead branch can contain the oils that cause the skin reactions
Contact your local lawn care company to deal with poison ivy issues.