Most invasive species seem to march northwards from ports or up across the border, but Dog-strangling Vine is being its usual stealthy, sneaky self and heading southwards at the SAME time. The Windsor Star published an alert on June 1 that Windsorites should keep an eye out for DSV, and remove or report it. The plant could come from Michigan or southwards along the Quebec-Windsor corridor – one of the busiest transportation corridors in North America.
Fraser Smith, of the Invading Species Awareness Program, claims that the Toronto-area is the epicentre of the population. The Invading Species Awareness Program was created by the Ontario Federation of Anglers and Hunters with the Ministry of Natural Resources and has a hotline to report sightings of invasive species. Dog-strangling Vine is among the program’s top 10 invasive plants and it is actively spreading.
DSV was first noted in Toronto in 1899, and traced back to Ukraine or Russia. Just why the population seems to have aggressively exploded in the last 10 years is unknown.