Dog strangling vine Threatening Native Species and The Monarch Butterfly

The dog strangling vine is a destructive invasive alien plant that is threatening to strangle out native species in North America. Even the name sounds so horrific I want to just call it the strangling vine for short.

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This strangling vine Cynanchum rossicum is from the milkweed family, but it is a different Genus than the native North American milkweed that the monarch butterfly lays their eggs on.

Flower They not only strangle out milkweed, the vine tricks the monarch into laying eggs on it, probably because it is from the same family. The eggs do not mature, which endangers the monarch butterfly population numbers. The loss of milkweed due to pesticide use and loss of habitat is having devastating consequences on the monarch butterfly population.

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This plant is tough to take out too, you need to remove all the roots or it will grow back.

I have removed all of these invasive vines from my garden. I pull them every year because I didn’t like they way they strangled everything, and now I know what a true danger they are I will pull them even earlier.

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I am growing a small patch of milkweed in my garden for the Monarchs and it surprises me how many people say to me why don’t I pull ‘those weeds.’

Between people pulling native milkweed or putting pesticides on them, destroying natural habitat and now invasive aliens competing, it is no wonder why the monarch butterfly population is in decline.

If you see this plant in your garden or anywhere else please remove it. As a caution wear gloves and long sleeves when removing it, it may cause a rash or wound.

Thank you for helping the Monarch butterfly and our native plant species.

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2 Responses to “Dog strangling vine Threatening Native Species and The Monarch Butterfly”

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