invasive species

Chequamegon-Nicolet National Forest

The Chequamegon-Nicolet National Forest has revealed it's latest maps and details about locations of invasive plants within the forest.

Forest botanist Marjory Brzeskiewicz says the report is sent out every year, giving information on new sites where invasive plants are located.

She says part of the new information is a webmap with geographic information system technology pinpointing where people have found new plant infestations along with locations for all the invasive plant sites in the Forest.

Wikimedia Commons Tony Webster

Four Northwoods county land and water conservation departments are hosting a one-day event Friday for the public to bring in a critter or plant that might be not native to Wisconsin.

The invasive species road show involves Oneida, Vilas, Langlade and Bayfield counties and the Wisconsin Headwaters Invasive Partnership.

Oneida County aquatic invasive coordinator Stephanie Boismenue explains the day..

Wikimedia Commons

June is Invasive Species Awareness Month and a local coordinator hopes everyone does their part to help stop the spread. An invasive is any plant or animal introduced outside their natural ecosystem

. Oneida County Land and Water Conservation Department's Stephanie Boismenue says people should be on the outlook for anything that could be spread on shoes, boots, car tires, bait bucket, live well...

"...if it doesn't belong, don't bring it along...'

On Wednesday, the Oneida County Land and Water Conservation Department is hosting a plant ID day from 1pm to 4pm at the Hodag Park boat landing. Aquatic Invasive Species Coordinator, Stephanie Boismenue says people can bring plants and animals to be identified.

"Wednesday July 20th, the Oneida County Land and Water Conservation Department is holding a plant ID day and actually it’s not just for plants.. Its for any animal, whether it's an insect or a fish you may have in your lake. Or if you have a plant that you need ID’ed on, our department can certainly help you with that.”


A couple of roadside invasive species are beginning to show up in the Northwoods.

While attractive, Vilas County Invasive Species Coordinator Cathy Higley says be wary of Big Leaf Lupine and Smooth Bedstraw...

"....that is one you'll see blooming down the right-of-ways during the next couple of weeks. That is not a regulated plant by the DNR. That one is being sold. It's beautiful, it's showy, kind of hardy...."

You might have a curious plant in your yard or something by your lake home which looks wierd. Several Northwoods agencies are hosting an Invasive Species ID Day at various locations.

Vilas County Invasive Species Coordinator Cathy Higley says the public can bring in anything to be examined by an invasive species specialist...

"....if you're wondering, 'what is this?', you can bring it to one of those locations. We'll help ID it and give some background information on how it can affect your property or your lake...."

Invasive Faucet snails have been discovered in Elton Creek in Langlade county and the DNR hopes stream users help keep the critter from spreading.

DNR Aquatic Invasive Species Coordinator Bob Wakeman say the Faucet snails out-compete native snails. While some people might think this is a small problem, Wakeman says the snails could mean bigger problems for other species...

While county and state workers have been busy fighting land based invasive species, the Chequamegon-Nicolet National Forest is also active in stopping the spread on its 1.5 million acres in Wisconsin.

Biologist Marjory Brzeskiewicz says they've had a plan in place for years to stop the common land invasives...

".....some of the big ones that affect the Northwoods  are garlic mustard, buckthorn, honeysuckle. We don't have quite the problems as they do down south where there are more open, prairie-type species...."

UW Arboretum

Another in a long line of invasive pests with Asian origins is likely coming to the Northwoods.

Oneida County invasive species specialist Jean Hansen says the Jumping Worm, a native of Japan and Korea threatens woods and fields and has been found or suspected in parts of Wisconsin. She says the DNR is trying to alert gardeners and property owners about the worm which looks a little like the common earthworm with a tan band around its torso..


Vilas county's long-time Invasive Species Coordinator will be retiring next month and he says while progress has been made in fighting invasives, challenges remain.

Ted Ritter has been at the job for a little over 10 years. He says the majority of his job evolves around aquatic invasives. He says since 2004, the public knowledge of aquatic invasives has grown dramatically....

"...I'm happy to say after 10 years, public awareness of aquatic invasive species is now up through the roof and climbing...

For the first time, the possibility of preventing invasive species from entering into Wisconsin has been approved. The Natural Resources Board voted to approve revisions to the state's invasive species rule known  as NR40. The revisions include listing of additional species and delisting of currently regulated species under the state's Invasive Species Identification, Classification and Control rule.

The state Natural Resources Board will decide Wednesday on revisions to the state's invasive species rule..
Vilas County's Invasive Species Coordinator Ted Ritter says the changes in both the land and water invasive rules have been talked about for a long time. Dozens of species are being categorized. Ritter says one plant has drawn attention....

Ash Borer Found in Oneida County

Oct 7, 2014

The Emerald Ash Borer has been found in Rhinelander.  That makes Oneida County the 38th county in Wisconsin to go under quarantine for movement of firewood.

The state Department of Agriculture, Trade and Consumer Protection says the borer was found at James Williams Middle School, in a trap set by a USDA monitoring program. 

Spokesperson Donna Gilson says it appears the infestation was found early.

Colin Smith / Trout Lake Station

A new way of combating invasive smelt is meeting with mixed success – literally – at the end of a two-year study.  The Crystal Lake Mixing Project was able to get rid of most of the smelt in Crystal Lake…but not all of it.

The mixing project began two years ago at the University of Wisconsin Madison’s Trout Lake Station.  Its main goal was to stir up the layers of Crystal Lake, warming the bottom and making it inhospitable for cold-water-loving smelt, which were harming native populations of walleye and yellow perch.

Stefan Czapski /

Three Lakes has completed a detailed survey of terrestrial invasive species in the town. 

The data was collected by one individual: Baerbel Ehrig walked and biked 260 miles in Three Lakes last year…on both sides of each and every town road. 

Ehrig explains the purpose is to better understand which invasives are present on a local level, and how many of them there are.  And roads are a good place to start.