Nuisance Species - itsaboutnature.net
Location: 1524 Forest Avenue, Portland, Maine. 

In 2010 I met the owner of this property and expressed my concern for the White Pine trees that line her property just behind the cyclone fencing along this sidewalk. She assured me she was already aware of the problem and sure enough, in the following months I noticed that the bittersweet had been completely removed. But as you can see from this image taken August 2012, the bittersweet is making another run for the tops of the pines.

Please folks, do not be afraid to use herbicide as long as you use it wisely. When I worked in the Everglades as a habitat manager I hated herbicide. But over the years I gradually became aware of its superior effectiveness at selectively controlling and killing certain noxious plants. And Asiatic Bittersweet is a nasty, invasive plant that must be killed wherever we find it. Here, I would sever each stem with a machete or pruner and then carefully apply herbicide to the leaf surfaces that are growing (and still living after I sever the stem) out of the ground side of the plant's stem. I use the Round Up brand that is made for bushes. I believe it is labeled Round Up for Poison Ivy. 

On my property it seemed to entirely kill the Asiatic Bittersweet when I applied it in 2010. I was very impressed at how quickly it killed the bittersweet and that the bittersweet did not recover by the following Spring. However, I knew that within the next few years I would see some small evidences of the plant coming back. And I did in Spring-Summer 2012. But the few little bittersweet plants I also killed then were not anywhere near the stature of the plants that I killed in 2010. I am telling you with all sincerity that herbicide (following the severing of the plant’s connection to the soil) may well be the best and only way to effectively deal with an exotic plant that is as invasive as Asiatic Bittersweet.

Location: 1524 Forest Avenue, Portland, Maine.

In 2010 I met the owner of this property and expressed my concern for the White Pine trees that line her property just behind the cyclone fencing along this sidewalk. She assured me she was already aware of the problem and sure enough, in the following months I noticed that the bittersweet had been completely removed. But as you can see from this image taken August 2012, the bittersweet is making another run for the tops of the pines.

Please folks, do not be afraid to use herbicide as long as you use it wisely. When I worked in the Everglades as a habitat manager I hated herbicide. But over the years I gradually became aware of its superior effectiveness at selectively controlling and killing certain noxious plants. And Asiatic Bittersweet is a nasty, invasive plant that must be killed wherever we find it. Here, I would sever each stem with a machete or pruner and then carefully apply herbicide to the leaf surfaces that are growing (and still living after I sever the stem) out of the ground side of the plant's stem. I use the Round Up brand that is made for bushes. I believe it is labeled Round Up for Poison Ivy.

On my property it seemed to entirely kill the Asiatic Bittersweet when I applied it in 2010. I was very impressed at how quickly it killed the bittersweet and that the bittersweet did not recover by the following Spring. However, I knew that within the next few years I would see some small evidences of the plant coming back. And I did in Spring-Summer 2012. But the few little bittersweet plants I also killed then were not anywhere near the stature of the plants that I killed in 2010. I am telling you with all sincerity that herbicide (following the severing of the plant’s connection to the soil) may well be the best and only way to effectively deal with an exotic plant that is as invasive as Asiatic Bittersweet.