“Dog strangling vine” refers to both black swallowwort and pale swallowwort. Originating in Eurasia, these invasive perennial vines are members of the milkweed family. In recent years, they have spread rapidly throughout central and southern Ontario.
Once established, dog strangling vine is extremely difficult to control. While biological control through a leaf-feeding caterpillar helps, an integrated pest management strategy using herbicide is necessary. What herbicides are most effective? |READ MORE
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