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INVASIVE SPECIES MANAGEMENT

What are invasive species? Invasive species are plants, animals or fungi that are not native and cause harm or are likely to cause harm to the economy, environment, or human health. Not all non-native species are invasive, but the ones that are out-compete native plant species for vital resources like water and sunlight. The loss of native plants to invasive species is extremely detrimental to local ecosystems, wildlife, infrastructure, and more. Invasive species are a serious threat to biodiversity here in Michigan, and across the world. Allegan Conservation District works to fight against invasive species and protect healthy ecosystems in Allegan county.

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Invasive species Japanese Knotweed
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Japanese Knotweed, photo courtesy of SEWISC

Hire the ACD Ecological Strike Team for Control of Invasive Species. The team operates from June to August on a variety of species like invasive bittersweet and Japanese knotweed. The species removal services are for-hire and are funded by an hourly fee paid by landowners.

If you are interested in invasive species treatment, please fill out this google form:

For any questions regarding invasive species management or treatment:

Ari Henson, Restoration Coordinator

Ari.Henson@macd.org

cell: (269) 286-3736

MISIN is the Midwest Invasive Species Information Network

The Allegan Conservation District is a proud member of the West michigan Cooperative Invasive Species Management Area (WMCISMA), a partnership of groups and individuals working together to address invasive species in Allegan, Ottawa, Muskegon, Oceana, Kent, Montcalm, and Newaygo Counties The WMCISMA serves the community by securing funding to treat invasive species, providing information on invasive species, and more. For any regional invasive species queries or more information on the WMCISMA, please contact: Murielle Garbarino

Murielle.Garbarino@macd.org

(616) 842-5852 ext 5

CISMA

Hemlock Woolly Adelgid (HWA)

Tree infected with Hemlock Wooly Adelgid.

HWA is an invasive insect native to Japan. It extracts sap from hemlock trees, weakening needles, shoots, and branches. Over time, tree growth slows, and without treatment, infested trees die within 4-10 years. Hemlocks are some of the oldest living trees in Michigan, providing important habitat and winter cover for many species.

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HWA can be identified by:

  • White, cottony masses about 1/4 the size of cotton swab attached to the twigs, at the base of needles on underside of branches

  • Needle loss and branch die back, no new growth

  • Gray-tinted foliage

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For more information on Hemlock Woolly Adelgid in West Michigan, please visit Ottawa Conservation District's website (OttawaCD.org). For questions about HWA treatment services, please contact the Forest Pest Specialist at Ottawa Conservation District:

Brendan Canavan, Forest Pest Specialist

Brendan.Canavan@macd.org

(616) 414-2638

Spongy Moth Management

Outbreaks of spongy moth are not frequent but are unpleasant. Learn about why populations grow and collapse and how you can deal with their impact. Below are links and videos to help you decide how to manage your Spongy Moth outbreak.

Tree trunk with Spongy Moth cocoons on tree trunk. Photo by Peter Linehan
Spongy Moth Cocoon Hatching
Spongy Moth Male moth. Photo by Ben Sale.
Spongy Moth Caterpiller. Photo by Bernard Dupont
Female Spongy Moths. Photo by USFS.
Map of Karner Blue Butterfly stats via MSUE
Karner Blue Butterfly on sprig of grass. Photo by Mary Rabe via MSUE
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