http://www.weedscience.org/summary/MOASummary.asp

I thought there were Glufosinate resistant weeds but I'm not finding them so I must be wrong.  However, this is a list of all the weeds that are resistant to chemical groups.  Who would have thought off the top of their heads that there are 70% more weeds resistant to paraquat than Roundup?  Not me.

Glufonsinate has been around a long time.  I worked with Basta (a trade name for glufosinate) in the early 80's.  It's use has not been nearly as broad as most of the other chemistries because of it's non-selective nature on crops coupled with it's relatively narrow spectrum compared to paraquat.  I would be anxious, however, to have it stacked with RR to address some currently resistant weed situations and be able to maintain crop safety.  Unfortunately, Glufonsinate won't address some of the resistance grasses very well if they happen to spread.