a6f7fc7c_e__Wreath_Rose_Rosa_multiflora__Rating
[Content] On Apr 26, 2006, Hikaro_Takayama from Fayetteville, PA (Zone 6b) wrote: This plant was introduced to PA by the PA dept of agriculture, who, in their infinite "wisdom" thought it would be a great way of controlling erosion on stream banks. This plant, however, is spread rapidly by birds, and when it moves into an area, it will choke out native shrubs, perennials and any other plants it can push out. I've even seen a large clump of these climbing roses kill a TREE!! The only plants I've seen that can successfully compete with this menace (without killing natives) are bamboo (which, due to it rapid and tall shoot growth can actually penetrate a mass of this bush and ultimately shade it out), and our native trumpet vines (which are just about as good at climbing, rapid growth and spreading by suckers as this foreign invader is). The... read more only effective biological control (other than the aformentioned plants) is some type of blight (that originated, ironically enough, from our native roses) that causes deformed growth on the plant (ala witch's broom), followed by general wiltage and eventually death. I found one good way to take out a multiflora rose thicket, and send it down for the count, is to first use either long-handled pruning shears or a machete (or, in my case I use my longsword) to whack off the outer branches (which can then be either chipped or tossed onto the ol' brush pile), then use a good garden shovel to dig up as much of the roots as you can. I've used this elimination method for well over a dozen multiflora roses on my property, and never had one come back. This plant is considered a noxious weed in PA, so I terminate it with extreme prejudice. [Rating] 
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PlantFiles: Detailed information on Multiflora Rose, Buschel Rose, Wreath Rose Rosa multiflora