|Oriental bittersweet can cause severe tree damage. It is|
easily identified in the fall by its yellow foliage.
|Oriental bittersweet is often used|
for making wreaths this time of year
It is extremely difficult to control. I have been trying to rid the woodlot of the vine since I discovered it a few years ago and I just keep finding more. I have also found that not only does the vine climb trees but it also root sucker and send up sprouts. Theses new sprouts are extremely difficult to find and control. I have spent hours searching through areas with a backpack sprayer treating new sprouts. When spraying I use a mixture of glyphosate and triclopyr mixed 2:1 respectively. This mix is also good for other invasive plants you may encounter and want to treat at the same time.
It is important that you learn to identify Oriental bittersweet as we also have a native American bittersweet (Celastrus scandens). The two are often confused and unfortunately, they are know to hybridize. The University of Minnesota Extension has put together and excellent YouTube Video on how to easily identify the invasive exotic vine and differentiate it from the American vine. Now is a great time to watch for it and avoid spreading the seeds. Minnesota's new Extension fact sheet will also help you differentiate between native American bittersweet and its noxious invasive cousin.
|Oriental bittersweet has yellow seed capsules and the fruits are located|
all along the stem in the axils of the leaf
Flowers and fruits are at the ends of the branches
Seed capsules are orange
Flowers and fruits are in the axils of the leaves all along the vine
Seed capsules are yellow
Here is the link to the PA DCNR Invasive Plants of Pennsylvania fact sheet on Oriental Bittersweet.