This document printed from the University
of Illinois Extension Garden Column at http://www.extension.uiuc.edu/williamson/
Poison Ivy Control
July 2, 2009
Ed Billingsley
County Extension Director, Williamson County and Interim County Extension Director, Jackson County
Williamson County Unit 1306 N Atchison Ave, Ste A
Marion, IL 62959
Phone: 618-993-3304
FAX: 618-997-1542 edb@illinois.edu
Look around trees, fence rows; even some flower beds and one can find poison ivy.
This plant is known for its tri-leafed growth. Some people I know even call it three-leaved ivy. One saying I heard often is "leaves three let it be." The real danger here is its ability to cause skin irritation.
One should note that poison ivy is poisonous year round. It is the oil from this plant that causes skin irritation. Direct contact with any part of the plant is usually the way the oil is transferred. But one can pick up a tool, clothing or animal which was exposed and become infected.
If you ever had poison ivy symptoms you will not forget it. But for those who haven't they include itchy inflamed skin with blisters.
Do not burn poison ivy. Burning the plants produces smoky soot which carries the poisonous oil into the air. The result will be for those who are susceptible poisoning as well.
Cultural control includes digging the plants during wet periods. This is due to the extensive root system being easier to remove during wet periods instead of dry times. Use this method only if you are not susceptible and there are only a few plants.
Chemical control includes the use of products labeled for the control of poison ivy. Be sure to always read and follow label directions.
Some products labeled include the chemical glyphosate. This product will translocate to the roots. Remember this product is non-selective so it will kill desirable plants. So apply it with caution.
2, 4–D ester is another option that usually requires repeated applications. This product does not kill grass neither will it translocate to roots. But some landscape plants are very sensitive to this product so read and follow label directions. There are other chemical options one could use as well.
Finally dead or alive poison ivy can still leave oils on your skin. So handle it with care. If you don't the results could be itchy.
Remember read and follow any chemical label to insure you are using it properly.