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What is a CISMA?
CISMA stands for Cooperative Invasive Species Management Area
The Lake to Lake Cooperative Invasive Species Management Area (L2L CISMA) is a multi-agency and multi-community group created in 2008. We protect the Central Upper Peninsula, from Lake Michigan's shoreline to Lake Superior's, covering Alger, Delta, Marquette, and Schoolcraft counties. We aim to provide long-term protection to native habitats by reducing the threat from non-native and invasive species. We reduce the threat of invasive species by educating the public, surveying and researching invasions, planting native species, and by providing on-the-ground invasive plant removal techniques.
Michigan's High Priority Invasive Species
Hemlock Woolly Adelgid (HWA) Surveying | 2023
Alger Conservation District, Marquette Conservation District, and the L2L CISMA working together with private landowners to survey Alger County for HWA.
Hemlock Woolly Adelgid
Hemlock woolly adelgid, a high priority invasive species, has been found in six western Michigan counties including Allegan, Ottawa, Muskegon, Oceana, Mason, and Benzie.
Garlic Mustard
All parts smell like garlic when crushed, especially in spring and early summer; dominates the ground layer of forests to the exclusion of almost all other herbaceous species; destroys mycorrhizal fungi needed by woody plants for regeneration.
Himalayan Balsam
Himalayan Balsam can grown between 3 and 6 feet tall and presents purple or red stems that are smooth and hallow. Each stem contains 5-10 flowers, each flower will have 5 petals with either purple, pink, or white color. Fruit capsules will burst if touched when ripe.
Purple Loosestrife
This species is restricted under Michigan law; attractive but persistent weed; spreads vigorously in moist soil conditions; crowds out native wetland plant species. Shade intolerant but can tolerate up to 50% shade; found in disturbed wet areas; tolerates a wide range of soil types but prefers organic soils.
Phragmites
This species has been listed as a restricted species under Michigan law; forms dense, impenetrable stands. Native to North America and found around the world; aggressive strains are thought to be of exotic or hybrid origin. Found in wetlands, ditches, swales, stream and pond banks.
European Frog-bit
This species is listed as a prohibited noxious weed by the Michigan Department of Agriculture; most plants are dioecious and many populations consist of only one sex; in mixed populations, most plants are male and little seed is produced. Perennial, free-floating aquatic herb that forms large colonies, creating dense mats with tangled roots.
Wild Parsnip
Chemicals found in leaves, stems, and flowers of wild parsnip can cause skin rashes, burns, and blisters, especially in the presence of sunlight; roadside mowing disperses seed. Native to Eurasia. Found in open habitats such as prairies, savannas and fens. Tolerates a range of soil and moisture conditions; shade intolerant.
Butterbur
Introduced to North America for its medicinal uses. Shown to be effective in reducing the severity of migraine headaches. Native to Europe. Found in disturbed sites, meadows, fields or shores of rivers and lakes.
Japanese knotweed
This species is prohibited under Michigan law; forms dense thickets that shade out natives; rhizomes can damage pavement; extremely difficult to eradicate; spread by flood waters. Semi-shade tolerant; found along roadsides, stream and river banks, wetlands, wet depressions and woodland edges; can tolerate a wide array of soil and moisture conditions.
European Marsh Thistle
This species is listed under Regulation No. 715 - Seed Law Implementation as a prohibited noxious weed by the Michigan Department of Agriculture. Canada thistle was introduced to North America from Europe in the early 1600s. Found in disturbed open areas, roadsides, agricultural fields; invades prairie and riparian areas; salt-tolerant; shade intolerant.
Baby's breath
Commonly cultivated for cut and dry floral arrangements; often included in wildflower seed mixes. Native to Europe. Found in disturbed sites, particularly in dunes, prairies and barrens; prefers sunny, slightly alkaline sands.
Japanese Barberry
Japanese barberry tolerates a wide range of soils and moisture conditions and can thrive in sun or shade. It is often found in forests, pastures and old fields and along woodland edges, roadsides and disturbed areas.
Flowering rush
This species is listed as a restricted noxious weed by the Michigan Department of Agriculture. Flowering rush occurred in the Detroit River as early as 1918 but has become a much greater problem in recent years. Native to Eurasia. Found in rivers, lakes, emergent wetlands and ditches in waters up to 10 ft in depth.