
Dog Strangling Vine is an extremely aggressive plant species from the milkweed family. It is a perennial with a horizontal woody rootstalk or rhizome (Figure 2). The stems can range in length from 60 to 200 cm (24 – 80 inches) with a twining or scrambling configuration, hence giving it the “strangling” moniker. The leaves are ovate (oval) in shape, have smooth margins, with hairs being present on the margins and major leaf veins on the underside of the leaf (Figure 3). According to DiTommaso et al. 2005, the flowers of Dog Strangling Vine are a pink, red-brown or maroon, while “Black” Dog Strangling Vine has flowers that are dark purple to blackish. Flowers will produce pods containing seed that is similar in appearance to common milkweed.
You can try to do something about it by recognizing DSV in all its stages and removing it immediately from your property or common lands nearby.
- Cut (don’t pull) the stem off at the ground level. Pulling can break the roots underground, encouraging the plant to throw up new shoots at each of the break points.
- Do not rototill if DSV has infested your property. Each root segment can produce a plant. Cut vines to the ground, and smother the area with heavy plastic or a heavy layer of wet newspaper and mulch.
- Do not compost roots, flowers or pods.
- Burn or boil any seed pods before discarding them.
Click for more information:
http://torontogardens.blogspot.ca/2012/05/warning-dog-strangling-vine-in-bloom.html
http://www.omafra.gov.on.ca/english/crops/field/news/croptalk/2006/ct_0306a7.htm