Invasive Species . . .

PHOTOS BELOW: Knapweed

Background, News and Updates

In our effort to preserve the true natural environment we’ve inherited, we are concerned, of course, by the introduction of invasive species to our property.

Read below for specific information.

URGENT BULLETIN

Request for help in our eradication effort.

Please click HERE for information about helping our good neighbor Kathleen Mayhew continue her urgent effort in leading the charge to rid MIPCA (as best as possible) of Knapweed.

KNAPWEED: WARNING!! IF YOU SEE THIS NOXIOUS WEED ON YOUR CAMPSITE, PLEASE PULL IT OUT AND BE SURE TO GET THE ROOT WITH IT. THIS IS THE TIME OF YEAR IT BEGINS TO FLOWER Knapweed is an invasive species of perennial that chokes out native wildflowers, while causing deleterious changes to the soil of an area in which the perennial grows. The weed is, again, becoming increasingly prevalent at Middle Island Point, and worse yet, is choking out the wildflowers. A few years ago, intrepid Campers united and we had “pulling parties” and went to campsites where seasonal Campers were not yet here, and we pulled the weeds. In addition, the work party individuals pulled weeds from their own campsites. We almost entirely eradicated Knapweed from Middle Island Point property. However, the weed is so invasive that measures must be taken every year so that we are not ever again over run by this weed. Knapweed possesses carcinogenic properties and must be handled with extreme care. The Conservation Office staff suggests the use of leather gloves, long sleeves and long pants for handling the weed. My own experience was that I was nauseated and had an upset stomach for a few days after pulling the weeds for hours on weekends. I suggest you find your unused COVID masks and put them to good use for pulling the weeds from your campsite. The Conservation Office also suggests bagging the weed in black plastic garbage bags. If tightly tied and kept in the sun, the weed will die and the bags can be thrown in the trash collection for disposal in the landfill. Please pass along this notice to your neighbors so we are all working together to eradicate this noxious weed. Thanks for your assistance! Hope you have an enjoyable weed and bug less summer. Kathleen Mayhew Campsite 38 

Some Online and Local Resources for Responsible Landscaping

" Gardening with Native Plants - A Guide for the UP"
Maria Janowiak
March 2020

http://keweenawlandtrust.org

www2.dnr.state.mi.us/publications

Grasses and Ground Covers

Designs by Nature UP Native Plants
www.upnativeplants.com

Evergreen Nursery on M 94 west of Chatham

Native trees and shrubs

MSU Extension
canr.msu.edu

Marquette County Conservation District -- plants , information, assessments
marquettecd.com

DO NOT PLANT:

Miscellaneous:

Autumn Olive tree

Giant hogweed

Japanese knotweed

Common reed phragmites ( BIG problem in Wisconsin )

Purple loosestrife

Trees :

Norway maple

Tree of Heaven

Bradford pear *

Buckthorn *

Groundcovers (Asterix highlights particularly bad plants.

Gout weed *

Lily of the valley *

Periwinkle vinca *

Lesser celandine

Ajuga bugleweed

Chameleon plant

Evening primrose

English ivy *

Muehlenbeckia

Bears breeches

Japanese bloodgrass

Italian arum

Beach vitex *

Creeping jenny

Field blindweed

Ice plant

Japanese honeysuckle

Kudzu *

Winter creeper

Yellow archangel

Ribbon grass

Japanese pachysandra

Others including shrubs

Butterfly bush ( outcompetes native plants for pollinators )

Burning bush ( euonymus )

Privet hedge

Sacred bamboo

Japanese spirea

Japanese barberry

Asiatic bittersweet

Linden viburnum

Gulalia grass

Orange daylily

Poison hemlock ( conium )

Dames rocket

Queen's Ann lace

Garlic mustard

Chinese wisteria

Tansy

SAFE TO PLANT

Ground Covers

Bearberry

Blue-eyed grass

Wild Strawberry

Creeping phlox

Wild geranium

Foam flower

Canada anemone

Ferns - Maidenhair, Ostrich, Interrupted

Others ( a partial listing not exhaustive )

Cutleaf anemone

Wood anemone

3 toothed cinquefoil

Path rush

Beach peas ( very desirable on our beach )

Sedges - dewey, shining bur, necklace, fox , ivory

Wild petunias

Violets `- sweet white, wood

Phlox - wild blue, prairie

American beach grass

Barren strawberry

Jacobs ladder

Lance leaf coreopsis

Wild ginger

Bluet

Aster

Black eyed susan

Native Trees

There is value in mixing hardwoods into conifer areas and vice versa for wildlife and for future forest succession

White birch

Yellow birch

Black spruce ( susceptible to spruce bud worm )

White spruce ( susceptible to spruce bud worm

Tamarack ( needs wet ground but if present, excellent variety )

Balsam fir ( slow growing , susceptible to spruce budworm)

Hemlock

White pine

Red pine

Jack pine ( short lived and negative as a monoculture )

White cedar ( particularly valuable but require deer protection for the long haul as slow growing )

Ground juniper

Red oak

White oak

Sugar maple

Red maple

American beech ( much reduced with beech leaf disease , a nematode )

Ash ( much reduced with emerald ash borer )

Aspens quaking and bigtooth

Basswood ( fast growing )

Black cherry

Shrubs support wildlife -- not exhaustive list

Red osier dogwood

Ninebark

Serviceberry

Elderberry

Choke cherry

Blueberry

Nannyberry

Bunchberry

Hawthorn

Hackberry

Raspberry

Thimbleberry

Turning Your Backyard Into A Wildlife Habitat

For information about incorporating native species into your landscaping design, click HERE.

POISIN HEMLOCK ALERT

Member Jim Croom brings the following article to the attention of others:

https://www.lansingstatejournal.com/story/news/local/michigan/2026/04/18/invasive-plant-species-dnr-look-for-it-watch-list/89675835007/

FROM THE LEENENAU PENNINSUL via JIM CROOM

Here’s a link to an invasive species warning that the Association the Crooms are part of in the The Leenenau Peninsula in lower Michigan has sent its members.

https://lakeleelanau.org/combating-purple-loosestrife-in-lake-leelanau/