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Name: Aubrey
Grade: N/A
Location: N/A
Country: N/A
Date: N/A
Question:
Is poison ivy "immune" to herbicides because of the urushiol oil? I know that roundup works by blocking essential enzymes but I can't figure out why it won't work well on poison ivy. Even the herbicides that are specifically for poison ivy don't work that well. My research is on "why plants die." I can't get the poison ivy to die.

Replies:
There are several messages about this topic here:

http://forums.gardenweb.com/forums/load/woodland/msg0523233727381.html

Anthony Brach Ph.D.

Herbicides DO work on poison ivy. Roundup will not work very well, Garlon should.

J. Elliott


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