Dow Agrosciences recently held a webinar discussing the economics of weed control in nurseries.  It is a very thorough explanation of resistance, crop safety, spraying vs. handweeding, and combining different herbicides for good control.  Two points that we address very well with the Mankar systems are the crop safety aspect due to our sprayhoods and low-pressure application, and the uniformity of application that we achieve with our patented segment rotation atomizer.

You can see the video here at the Nursery Management Pro website.