How To Manage Invasive Species – Maryland Department of Natural Resources


Invasive species have become an increasing
threat within the past few decades. Woody vines are a problem because they shade
out and constrict trees, add extra weight to branches, and compete for light and
space. Specifically, the invasion of woody vines
such as English ivy, Japanese honeysuckle, Porcelain berry, and Oriental bittersweet. It is important to manage invasive species
so they do not consume the forest. The woody vines mentioned are managed more
easily than most people expect. The first thing to do is to locate the base
of the vine close to the ground. Next, take a sharp saw or trimmers and cut
completely through the vine, being careful not to damage the tree. On the same vine, cut 3 feet up it. This will completely cut off the root system
from the vine that has grown up the tree. This method is called Cut Vine. Cutting poison ivy with a chainsaw should
be avoided. Instead, use trimmers to cut the vine in order
to reduce the airborne spread of irritating oil known as urushiol. You can also use this method in conjunction
with a wick herbicide treatment, where you run a wick saturated with herbicide over
the cut area to decrease the chances of the vine sprouting further. For more information regarding types of pesticides
to use and correct application, contact your local University of Maryland Extension office.

Comments 2

  • Thank you for the quick info. I was pulling bittersweet and honeysuckle today. What can we do as Marylanders when we travel the roadways of the state and see tree upon tree smothered in these vines. Many roadsides near where I live are mass of green and orange this time of year. Are these all privately owned areas and is there anyway that the state can be more activev in getting the word out and helping. Both these vines seed profusely. So even when I finally get my land cleared I know new seed will soon arrive

  • Nice! I live in MD. For the past three years I have just weedwacked the overgrowth on the fence + cut lower vines. This year poison ivy was present. Poor mistake on my part. Poisonous sumac also started growing. I ended up needing medical car. Crazy stuff!

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