How do I get rid of Black Swallow-wort?

It is growing all through my juniper ground cover (Bar Harbor). I can get to the leaves ok but I cannot "paint" enough RoundUp to kill it. Any other product out there that is stronger?

Hi Giorio, Bar Harbor... must be Maine? Welcome to DG! I'm not sure what black swallow-wort is. Is their another name for it?

Thank you for the welcome.
I reside in Southern New Hampshire

Also known as Dog-Strangling Vine
Family: Milkweed
Latin names: Cynanchum Nigrum & Cynanchum Louiseae

I'm going to try a few different methods.
Round-up were there is little danger to other plants.
Vine-X on an other section and hand digging and removal where ever I can.

Welcome Giorio. Isn't that stuff just the worst. It is really invasive here. My neighbor is an older man and it is loose in his neglected beds and it is in the neighbors yard behind me. I go in and pull out all I can see. Do you know where it came from originally? I don't think it is native.

I think there is hope...I was able to get rid of most of it along the fence area by digging it out.
On a different area I applied a product called Vine-X and it seems to have some effect.
Originally it was imported from Europe as a garden plant!!!!
Check this out: http://www.ct-botanical-society.org/galleries/cynanchumloui.html
http://webapps.lib.uconn.edu/ipane/browsing.cfm?descriptionid=5

This message was edited Tuesday, Jun 24th 6:40 PM

OMG, I have the pale kind. I noticed the flowers the other day when I was on the attack. They were a pretty taupe or light brown color, but pretty small. I bet the birds eat those berries as I have it under a Douglas Fir that I hang a feeder on in the winter. What were those people thinking??

Thanks for the information.

Your problem helped me ID my problem (or one of them) I'm being invded by Cynanchum rossicum , the brown version of youor black swallowtail. I am also being invaded by plain old milkweed and a couple of other really frustrating plants.

Thanks for the hyperlinks!!!

You know, BobCrystal, if you leave some of those milkweeds, you may be rewarded with a monarch butterfly catepillar. That is the food of the larvae. Look under the leaves and if you have a tiny green thing it is an egg. It is fun to check every day and see how they grow.

http://www.kidzone.ws/animals/monarch_butterfly.htm

Unfortunately the Monarch butterflies also use the Black Swallow-Wort to lay their eggs: http://www.uri.edu/cels/pls/monarchs.html

2 years later and I'm still battling...