Thanks for this Caroline!
it states that "Controlled trials have shown that acupuncture does not improve PD motor symptoms".
Question 17 in the "Parkinson's Disease Q&A. A Guide for Patients" publihsed by the Parkinson's Disease Foundation states likewise.
Or maybe there is thus far, "no evidence".
But given the fact your link is dated August 11, 2011 I wouldn't discount it. Is a full copy of the article handy? I an only find an abstract.
Maybe someone on this site has some personal experience with acupuncture that they would like to share?