Select Page
Economic and Environmental Sustainability
BIA's Mission: Economic and Environmental Sustainability
Represent Combined Interests
Represent the combined interests of our membership on issues that affect the fundamental character and beauty of Beaver Island.
Work with local government
Work with local governments to support property owners’ views, concerns and investments
Preserve Natural Resources
Support preservation and wise use of natural resources, plants, and wildlife of Beaver Island

Birding Foray on the Beaver Announced

The Beaver Island Birding Trail Memorial Day Festival is on for 2024 After 10 wonderful years we are undergoing a leadership transition, and with limited time constraints, we are having a smaller...

Townships Announce Short-term Rental Listening Sessions

The Island townships have set times for listening sessions on short-term rental issues on the island. Supervisors Welke and Dal Pra say they want your information, ideas, and data as they look to...

Preparing for Emergencies on Beaver Island

With several folks asking questions on social media about dealing with power outages and other storm issues on the island, we thought it would be helpful to re-post this information created by St....

Peaine Parks & Recreation plan is out for final review

The Peaine Township Five Year Park & Recreation Plan has been posted for final review.  You can get a copy online using the button below. It is also available on the Peaine Township website...
Time to check trees for hemlock woolly adelgid

Time to check trees for hemlock woolly adelgid

Invasive pest now confirmed in seven Michigan counties

The Michigan departments of Natural Resources and Agriculture and Rural Development encourage those who have eastern hemlock trees on their property to take time this winter to inspect the trees for signs of hemlock woolly adelgid. Anyone taking to the woods also can help by looking for signs of this invasive insect while hunting, hiking or enjoying other outdoor activities.

Winter is the best time to look for evidence of an infestation, according to Robert Miller, MDARD’s invasive species prevention and response specialist.

“Cooler temperatures trigger feeding activity,” Miller said. “As hemlock woolly adelgid feeds, it secretes a white, waxy material that creates ovisacs. The presence of these small, round, white masses makes it possible to identify infested trees.” As they feed, these tiny, soft-bodied insects consume a hemlock’s stored nutrients, slowly sucking the life from the tree.

As they feed, these tiny, soft-bodied insects consume a hemlock’s stored nutrients, slowly sucking the life from the tree.

Infestations of hemlock woolly adelgid have been confirmed in Allegan, Benzie, Mason, Muskegon, Oceana, Ottawa and Washtenaw counties.

Throughout the winter, survey crews from the DNR and several cooperative invasive species management areas will look for signs of hemlock woolly adelgid, conducting surveys within a 5-mile border along the Lake Michigan shoreline. Because hemlock trees can be protected from these insects with proper insecticide treatments, infested trees and any other hemlocks within the area will be mapped and tagged, then prioritized for summer treatment. CISMAs will seek landowner permission to conduct surveys of hemlocks on private lands within the shoreline border. CISMA survey efforts, supported by funds from the Michigan Invasive Species Grant Program and the U.S. Forest Service, are provided at no cost to landowners.

Your help is needed

Though dozens of staff will assist in the surveys, they won’t be able to check every hemlock. If you have hemlocks on your property, whether it’s within or beyond the 5-mile shoreline border, take some time to look for signs of hemlock woolly adelgid.

Anyone spending time outdoors is encouraged to do the same.
In Michigan’s northern forests, hemlock trees are found in moist soils along streams and riverbanks and along coastal dunes. Hemlock also is popular as a landscape tree in parks and residential areas.

Identify hemlock trees

Since adelgids feed and form ovisacs only on eastern hemlock trees in Michigan, it is important to distinguish hemlocks from other conifers like pines or spruces. Look for:

• Cone- or egg-shaped trees up to 75 feet tall.
• Drooping or feathery branches.
• Flat needles growing individually from the sides of twigs.
• Needles that are dark green on top with two parallel, white stripes underneath.
• Papery cones about three-quarters of an inch long that hang downward from branches.

Look for signs

Late fall through early spring is the best time to check hemlock trees. Look on the undersides of branches for evidence of round, white ovisacs near the base of the needles.

Up close, ovisacs look like tiny cotton balls and may appear alone or in clusters. The short video “Hemlock woolly adelgid: invasive species in Michigan” provides helpful identification tips.

Report your findings

Report infested hemlock trees by using the Midwest Invasive Species Information Network, available online at MISIN.MSU.edu or as a downloadable smartphone app. The MISIN smartphone app will take a GPS location point if a report is made at the site; it also will allow you to upload photos with a report.

Reports also can be made by email to MDA-Info@Michigan.gov or by phone to MDARD’s Customer Service Center at 800-292-3939.

Identify the location of infested trees and, whenever possible, take one or two pictures of infested branches to help confirm identification. To avoid spreading the insect, do not collect sample branches or twigs.

Manage your trees

If you find hemlock woolly adelgid on your property, it is important to know that certain insecticides are successful in treating the infestation if used correctly.

Without treatment, infested trees can die within four to 10 years. A qualified arborist, such as one certified by the International Society of Arboriculture, can diagnose and assist with treating infested trees.

If you are able to handle treatment on your own, follow the guidance provided in the MSU Extension bulletin “How to treat hemlock trees for hemlock woolly adelgid.”

Reporting infested trees, even if you will be managing them on your own, is important to help determine how far hemlock woolly adelgid has spread. This information also indicates where additional surveys may be needed.

Find more information

For more information on identification, reporting or treatment, visit the Michigan Invasive Species Program’s hemlock woolly adelgid page at Michigan.gov/HWA.


Michigan’s Invasive Species Program is cooperatively implemented by the Department of Environment, Great Lakes, and Energy; the Department of Natural Resources; and the Department of Agriculture and Rural Development.

Broadband For All

For Dick Mulvihill, BIA President The Concept of Partnership is Expanding For many years there have been people extolling the huge benefits of public-private partnership for broadband. For all of that talk, there is not a big number of partnerships, but there are some...

Please Donate Your Used Eyeglasses and Hearing Aids

For Pam Grassmick The Beaver Island Association is participating in the Lions Recycle for Sight used eyeglasses collection program and hearing aids would like to encourage community members to donate their used eyeglasses. Collection boxes have been placed in the...

Health Department director resigns

Health Department director resigns

Lisa Peacock, the director of the Health Department of Northwest Michigan has resigned from her position. She cited a “hostile work environment” created by the departments board and her health as reasons for the departure. She has been embroiled in controversy since...

JTAC Update

JTAC Update

The Joint Telecommunications Advisory Committee held a special meeting yesterday to discuss the island’s broadband plans with staffers from Congressman Debbie Dingell’s office. The Committee expressed the view that the past approach taken by congress, which focuses...

Townships issue Master Plan RFPs

Townships issue Master Plan RFPs

The townships have issue each issued Requests for Proposals to complete an updated Master Plan for the island. They seek an update to the current plan based on community input including a series of meetings that would start in May with additional meetings in June,...

Library News

Some big changes are afoot at the Beaver Island District Library.  Long-time director Patrick McGinnity has announced that he will be leaving the library.  He’s not leaving the island though.  Instead, he plans to focus his efforts on the Whiskey Point Brewing Company...

Line 5 battles continue

Line 5 battles continue

The battles over the pipeline under the straits of Mackinac—and the tunnel to replace it—continue.  Recent developments include two members of the Great Lakes Islands Alliance rejecting proposals from Enbridge to install high resolution cameras to monitor ship traffic...

New Assistant Director for the Library

The Library Board appointed Jacquie LaFreniere as assistant director of the library. In their announcement the board noted she has a long record of work both at the library and at other posts on the island along with specific library science credentials to go with...

Community Calendar

Malcare WordPress Security