Dog-strangling Vine has replaced all wildflowers in this area of Sylvan Park in Guildwood.
The Pale swallowwort (Cynanchum rossicum), also known as Dog-strangling Vine (DSV), is a highly invasive species of natural areas.
It can rapidly out-compete existing vegetation, thereby reducing overall biodiversity of a site.
Survives in sun and shade, and in damp or dry conditions. Kills the plants around it by changing the acidity of the soil. Once established, it is extremely hard to eradicate.
The plant is establishing itself in Guildwood and can be found in our gardens, parks and along our shoreline as well.
Please view my pictures from Sylvan Park and other locations.
Various methods of control have been tried on many locations over the last few years including pulling, digging, cutting, mowing, and smothering.
None have so far proven effective but we need to look at some of these methods over the long term.
Research is still going on.
Invasive alien plants have been in this country for decades and in some cases, for centuries, although the incursion of new species has occurred more rapidly in recent times.
As they displace native vegetation and change the composition of natural ecosystems, the impact on the fauna is significant.
There is no doubt that invasive species present a considerable environmental and economic problem wherever they occur.
For more information please visit the website from Fletcher Wildlife Garden in Ottawa, Ontario.
Minsitry of Natural Resources : http://www.mnr.gov.on.ca/
Please click to enlarge collages..