When is poison ivy not considered "dead"..iow...if you spray poison ivy with a weed/brush killer and the foliage is all brown and dead, is the irritant in poison ivy still a problem? Perry
Poison ivy question.
Apr 16, 2007
3 Replies
"perrylep" expounded:
Yes, it is still a problem, the oils that cause the rash are still present in the plant material. Do not burn it! Remove it (with gloves) toss into a trashbag and bring it to the dump.
The irritating compound in PI, urishiol, is chemically quite stable. Volunteers exposed to 50-100 year old herbarium specimens developed the characteristic rash.
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I'm itchy just thinking about it. C
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