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PLEASE NOTE: In the autumn of 1995, we hatched the idea for a free, local gardening publication. The following spring, we published the first issue of Michigan Gardener magazine. Advertisers, readers, and distribution sites embraced our vision. Thus began an exciting journey of helping our local gardening community grow and prosper.
After 27 years, nearly 200 issues published, and millions of copies printed, we have decided it is time to end the publication of our Print Magazine and E-Newsletter.

Archive for the Clippings department

Soil health should be number one priority

January 30, 2024   •   Leave a Comment

Building and managing a vegetable garden can be much simpler if we change our behavior considerably. In the “old days” we rototilled or “double dug” our patch every spring. We took soil tests to help us determine how much and what kind of fertilizer we should use each year. Watering was a real concern in the heat of the summer. We seldom caught up with the weeds. We had to always keep our eye out for any insect problem that might appear. We had to learn about disease for all the different vegetables we were growing. Some could be fixed and others required removing the plant from the garden. 

Does this sound pretty much the way you tend your vegetable garden? Don’t feel bad. Many Americans grow vegetables with all those concerns just like Grandmother did.

Vegetable gardening can be much simpler and easier to manage if we would begin to focus most of our attention on the condition of the soil in which we grow our plants. I mean really focus our attention. Soil health in the garden has typically gotten the short shrift. Pay more attention to your soil’s health and a whole lot of onerous gardening tasks will disappear. We now have to start paying attention to the needs of the “soil food web” for a change.

Do an Internet search on “soil food web” and you will get a lot of good basic information discussing this incredibly complex network of soil critters, from earthworms down to the smallest bacteria. There are millions of different micro-pals in a healthy soil. This network includes bacteria, fungi, protozoa, beneficial nematodes, beneficial mites, and many more.

I suspect most vegetable gardeners in Michigan have soil that is in bad condition—a low population of the soil food web. For example, if you rototill every year, don’t use raised beds, don’t use mulch all year round, and use quick-acting nitrogen fertilizer, I can assure you that the soil in which you are trying to grow food is essentially dead.

Most vegetable gardeners in Michigan have soil that is in bad condition—a low population of the soil food web.
Most vegetable gardeners in Michigan have soil that is in bad condition—a low population of the soil food web.

Most vegetable gardeners in Michigan have soil that is in bad condition—a low population of the soil food web.
Most vegetable gardeners in Michigan have soil that is in bad condition—a low population of the soil food web.
Most vegetable gardeners in Michigan have soil that is in bad condition—a low population of the soil food web.
Most vegetable gardeners in Michigan have soil that is in bad condition—a low population of the soil food web.

Here are basic steps that lead to a quality of vegetables that you could never before imagine:

Use raised beds

Plants grow better in permanent raised beds that are seldom walked on. The permanent paths in between get compacted enough to discourage weeds. Raised beds warm up earlier, drain better, and are easier to work in.

Use full-time mulch

Mulch is thought to be valuable because it will keep down weeds, slow down moisture evaporation, and cool the soil in the summer. Those are good things, but the real reason for using 2 to 3 inches of organic mulch 365 days a year is that it supplies critical food to the earthworms and the other billions of creatures that make up a healthy soil food web. No mulch, no food. No food, no soil food web.

Stop rototilling

After using organic mulch such as straw for 2 or 3 years, you can stop tilling the soil in the spring. The soil food web takes care of the tilling job.

After using these steps in your vegetable garden for 2 to 3 years, you will be amazed. You will need only half the fertilizer and half the water your neighbors need to use. Insect and disease problems will decrease. You will save the time you spent rototilling each spring as well as the time and stress spent fighting pest insects and disease. About the only problem this system creates is that you will never be able to use all the harvest yourself!

Jeff Ball has authored eight books on gardening, vegetables, and lawn care.

ELSEWHERE: Vegetable Gardening

RELATED: Soil Basics 101: From pH to microbes, learn about the lifeblood for your plants

Filed Under: Clippings

USDA releases new plant hardiness zone map

December 11, 2023   •   Leave a Comment

The 2023 plant hardiness zone map is based on 30-year averages (from 1991 to 2020) of the lowest annual winter temperatures at specific locations. It is divided into 10-degree Fahrenheit zones and further divided into 5-degree Fahrenheit half-zones. The 2023 map incorporates data from 13,412 weather stations compared to the 7,983 that were used for the 2012 map.

Plant hardiness zone designations represent the “average annual extreme minimum temperature” at a given location during a particular time period (30 years, in this instance). Put another way, the designations do not reflect the coldest it has ever been or ever will be at a specific location, but simply the average lowest winter temperature for the location over a specified time. Low temperature during the winter is a crucial factor in the survival of plants.

USDA 2023 Plant Hardiness Zone Map

As with the 2012 map, the new version has 13 zones across the United States and its territories. Each zone is broken into half zones, designated as “A” and “B.” For example, zone 6 is divided into 6a and 6b half zones. When compared to the 2012 map, the 2023 version reveals that about half of the country shifted to the next warmer half zone, and the other half of the country remained in the same half zone. That shift to the next warmer half zone means those areas warmed somewhere in the range of 0 to 5 degrees Fahrenheit. However, some locations experienced warming in the range of 0 to 5 degrees Fahrenheit without moving to another half zone.

The annual extreme minimum temperature represents the coldest night of the year, which can be highly variable from year to year, depending on local weather patterns. Some changes in zonal boundaries are also the result of using increasingly sophisticated mapping methods and the inclusion of data from more weather stations.  

Temperature updates to plant hardiness zones are not necessarily reflective of global climate change because of the highly variable nature of the extreme minimum temperature of the year, as well as the use of increasingly sophisticated mapping methods and the inclusion of data from more weather stations.  Consequently, map developers involved in the project cautioned against attributing temperature updates made to some zones as reliable and accurate indicators of global climate change (which is usually based on trends in overall average temperatures recorded over long time periods).

https://planthardiness.ars.usda.gov/

ELSEWHERE: How plants survive a Michigan winter

Filed Under: Clippings Tagged With: Michigan, tool, USDA, USDA releases new plant hardiness zone map, winter

2023 Flower & Vegetable Winners: Part 2 of 3

May 16, 2023   •   Leave a Comment

All-America Selections (AAS) tests significantly improved new flowers and vegetables in trials across North America. This year’s AAS Winners are new cultivars with superior performance. Look for these plants or seeds at your local garden center.

Snapdragon: 'DoubleShot Orange Bicolor'
Snapdragon: ‘DoubleShot Orange Bicolor’

Snapdragon: ‘DoubleShot Orange Bicolor’

A new series of intermediate-height snapdragons suitable for the garden or as cut flowers. Open-faced double flowers emerge in warm shades of orange and orange-red that transition to a dusty shade as they age. Strong stems produce more branches, resulting in a higher flower count. These stems made flowers all season long, even in shadier areas, that didn’t break off in strong winds. 

Jalapeno Pepper: 'San Joaquin'
Jalapeno Pepper: ‘San Joaquin’

Jalapeno Pepper: ‘San Joaquin’

This determinate jalapeno sets most of its fruit in a short window, so there is a generous number of fruits ready all at the same time (roughly 50 per plant). Perfect for canning, pickling, and making roasted stuffed jalapenos for a crowd. If you won’t need them for a while, they hold their firmness and taste until you are ready to harvest. The thick-walled fruits have just a hint of heat. Leave them on the plant longer for a red, and still delicious, jalapeno.

Salvia: ‘Blue by You’

Salvia: ‘Blue by You’

This perennial features rich blue flowers that bloom up to two weeks earlier than comparable varieties. With excellent winter hardiness and heat tolerance, it works in perennial, pollinator, cutting, and container gardens. The blue blossoms appear from late spring into fall. You will get repeat blooms throughout the season if spent flowers are removed. Adored all season long by hummingbirds and butterflies—and not favored by deer or rabbits. Hardy to zone 4b.

Filed Under: Clippings Tagged With: 2023 Flower & Vegetable Winners, AAS, All-America Selections, Blue by You, DoubleShot Orange Bicolor, Jalapeno Pepper, Salvia, San Joaquin, Snapdragon

2023 Flower & Vegetable Winners: Part 1 of 3

May 2, 2023   •   Leave a Comment

All-America Selections (AAS) tests significantly improved new flowers and vegetables in trials across North America. This year’s AAS Winners are new cultivars with superior performance. Look for these plants or seeds at your local garden center.

Left: Coleus: ‘Premium Sun Coral Candy’ Top right: Squash: ‘Sweet Jade’ Bottom right: Shasta Daisy: ‘Carpet Angel’

Coleus: ‘Premium Sun Coral Candy’

The first seed coleus to be an AAS Winner. Unique, multicolored foliage on a uniformly compact plant. Narrow, serrated leaves gracefully drape down the mounded plants. Holds its color well, even when grown in full sun. ‘Coral Candy’ was evaluated in the container trial, meaning it’s great for small spaces. It held up well into the fall and had almost no flowers, even late in the season.

Squash: ‘Sweet Jade’

This single-serving-sized squash proved itself with high yields. Each fruit is between 1 and 2 pounds and can be used for single servings, as an edible soup bowl, or in Asian-style dishes where a sweet, earthy squash is typically used. The deep orange flesh of ‘Sweet Jade’ is dry, yet sweet and flavorful, whether roasted, baked, or pureed.

Shasta Daisy: ‘Carpet Angel’

The first-ever groundcover Shasta daisy (Leucanthemum). Large, three-inch flowers boast a second inner frilly bloom, adding to the unique look. Only growing to six inches tall, this unique Shasta daisy spreads up to 20 inches wide. Excellent branching means more flower stems sporting pure white blooms that look like angels dancing over the carpet of dark green foliage. A little deadheading of spent flowers will reward you with even more blooms.

Elsewhere: Search past All-America Selections winners

Filed Under: Clippings, Uncategorized Tagged With: AAS Winners, All-America Selections, Flower, vegetable

Belle Isle conservatory temporarily closed for major renovations

December 14, 2022   •   Leave a Comment

The Anna Scripps Whitcomb Conservatory is undergoing $10 million in renovations, which required the closure of the conservatory and grounds in mid-November 2022.

The Belle Isle Conservatory is undergoing $10 million in renovations, which required the closure of the conservatory and grounds in mid-November 2022. The work completes the final phase of a comprehensive plan to revitalize the upper 60 feet of the 80-foot-tall conservatory dome in one of the nation’s oldest turn-of-the-century glass houses still in existence.

The project starts with inspection of the original steel trusses to see which need repair or replacement, the removal of lead-based paint in the upper 60 feet of the conservatory dome (also known as the Palm House), reglazing the upper dome, and updating the conservatory’s ventilation system. In addition to unique horticultural collections, the building itself is a draw for architecture and history buffs; it was designed by Albert Kahn, one of Detroit’s most celebrated architects.

In addition to unique horticultural collections, the building itself is a draw for architecture and history buffs; it was designed by Albert Kahn, one of Detroit’s most celebrated architects.

The first phase of this comprehensive renovation project, completed in 2019, included the replacement of all 20 original steel trusses. “Major renovations are needed to stabilize the building to keep the conservatory open for the next century,” said Amanda Treadwell, urban field planner for the DNR Parks and Recreation Division. “The scope of work is critical to the structural integrity of the dome, public safety and improved conditions for the plant collection.” Treadwell said such capital improvements have been long overdue. “Besides the recent renovations in 2019, there has not been a major capital investment to the conservatory since the 1950s,” she said.

The outdoor gardens will reopen in May 2023, while the conservatory is scheduled to reopen in May 2024. Throughout November and December, scaffolding and a second floor will be erected to contain the abatement work and ensure minimal temperatures are maintained for the plant collection. Similarly, an envelope wrap will surround the exterior of the dome for the duration of the work.

For more information, visit Michigan.gov/StateParksProgress.

Filed Under: Clippings Tagged With: Anna Scripps Whitcomb Conservatory, Belle Isle, Belle Isle Conservatory, detroit, Renovations

Deadline nears for Michigan Big Tree Hunt contest

August 8, 2022   •   Leave a Comment

ReLeaf Michigan, the only statewide non-profit tree planting and education organization in Michigan, has launched its 15th biennial Michigan Big Tree Hunt contest. The contest, which offers prizes for identifying the biggest trees in Michigan, is open to participants of all ages.

The largest trees in the state can be found anywhere: a backyard, a local park, or a hiking trail. ReLeaf Michigan awards certificates and prizes for the largest tree submitted from each county, for the overall largest tree in different age groups, and for potential state champion trees. Even if the tree submitted is not as large as the currently listed state champion of that species, it’s important to still submit, since the current champion may have died or since been removed.

ReLeaf Michigan started the Michigan Big Tree Hunt in 1993 to celebrate our state’s beauty and create a fun way to gather information about Michigan’s biggest trees. The contest is an opportunity for all age groups to help track these vital historical living landmarks.

More contest details and the entry form are available at www.bigtreehunt.com. Entries are due by August 19, 2022. For questions not answered on the website, please email bigtreehunt@releafmichigan.org or call 800-642-7353. 

Filed Under: Clippings Tagged With: big tree hunt, deadline, Michigan

Vivid summer mornings at the farmers market

May 29, 2022   •   Leave a Comment

Tomatoes are just one of many things to look forward to at the farmers market.

by Christine Jamieson

Every Saturday morning from May to October, and sometimes during the week, I plunge into a pool of color at the farmers market. In an instant, the world changes from green grass, gray roads and blue sky to vivid technicolor, with sheets of bright annuals—red, yellow, pink, purple, and silver. There are gorgeous perennials and mounds of vegetables in every shape imaginable, a feast for all the senses. Pick up cool, firm green asparagus, feel the hot, sun-ripened smoothness of tomatoes and peppers, the soft downy skin of a tawny peach, the gentle roughness of potatoes and carrots. The whole world is here!

And where did all these people come from at six o’clock in the morning, and all enjoying themselves? It’s as though a film director has gathered everyone together for a crowd scene: the elderly, the young, the middle aged, toddlers stooping to pick up fallen flowers, babies in strollers, dogs tripping up people and barking, geese honking overhead. It’s a summer fashion parade too: exotic hats, shorts, pretty dresses, as well as the more normal jeans, T-shirts and sweats.

Market season begins with the flower growers. In the first few weeks you can buy Michigan wildflowers, early spring-blooming perennials, marigolds, petunias, begonias and more unusual annuals, as well as cut bunches of daffodils, tulips and pussy willow with its furry white paws. The earliest produce includes spinach, asparagus and rhubarb. Sometimes there is a bag of dandelion leaves for salad—a wonderful system toner and tonic. In France, asparagus and artichoke salads rest on a bed of greens, which includes dandelion leaves as well as melt-in-the-mouth goat cheese tartlets, all garnished with sprigs of myrtle, rosemary and violet flowers—a delight to the eye as well as the palate.

Every week at market there is something new, as strawberries are followed by cherries, raspberries and blueberries. Then in the height of summer, the nectarines, apricots and peaches, and eventually the best-tasting apples you will ever find in the state. There are some unusual varieties, ones grown by Thomas Jefferson and George Washington, as well as the more usual Golden Delicious, McIntosh and Granny Smith. If you get the opportunity to sample a russet, Winesap, or an Arkansas Black, go for it. And try the yellow and white cherries in addition to the more traditional black. Occasionally someone will have gooseberries, but if you can’t find them, grow some yourself—one of the best is Poorman: a juicy, fat, red berry which is delicious in pies and crumbles.

Vegetables come and go, English and sugar snap peas, green and purple runner beans, tomatoes, corn, peppers and various brassicas with the last delight of the season, Brussels sprouts, always better after a touch of frost. If you look carefully, there are fingerling potatoes for salads, and sometimes lovely fresh laid eggs.

The perennials are different from week to week. There is a great selection of hardy geraniums and campanulas, unusual hellebores (H. foetidus and argutifolius, as well as orientalis and niger), burnets (Sanguisorba) with flowers like miniature bottlebrushes, and fern-leaf peonies. I searched for years for the potentilla ‘Primrose Beauty,’ a delicate creamy yellow color, and eventually found it, along with a variegated kerria.

Markets have been around as long as man has lived in towns and cities, farmers bringing in their produce to the agora in Greece or the forum in Rome. In Europe, meat, fish and cheese are available as well as produce. In colonial America too, markets were commonplace. When the state capital of Virginia moved from Williamsburg to Richmond in 1779, an ordinance was passed for the establishment of a ‘publick market.’ We are particularly fortunate to have so many in Michigan.

Many of the vendors are professionals, but there are some who have become so passionate about their hobby that they want to share it with others and make a little money while they are at it. The markets attract the young also. I talked to one young man selling strawberries and raspberries who was studying philosophy in college, and to another young couple who enjoyed the market so much that it became their livelihood. There are vendors turning sun-ripened olive oil and the essences of lavender and rose petals into soap; others displaying beautiful photographs of flowers; still others making wonderful dried flower wreaths and arrangements.

There are specialist growers also. At one market, small perennials are sold by an amateur enthusiast who wants to share the exciting plants he has grown from seed. There are people specializing in heirloom roses, Japanese maples, dahlias so perfect you cannot believe they are real, hard-to-find shrubs, and wonderful herbs.

So go to them all—the big markets as well as the smaller ones. Each has its own unique character and soon you will find your favorite. It’s the best way I know to spend Saturday morning.

Christine Jamieson is a Michigan gardener and writer.

Filed Under: Clippings Tagged With: Farmer’s Market

Efforts underway to help restore rare forested wetland on Belle Isle

August 4, 2021   •   Leave a Comment

The Belle Isle wetland is one of the largest wet-mesic flatwoods in existence and one of only six high-quality occurrences left in Michigan.

A unique but damaged ecosystem on the eastern side of Belle Isle Park is getting some much-needed attention. Restoration specialists with the Michigan Department of Natural Resources are working to bring back 200 acres of globally rare, forested wetland at the 2.5-mile-long island park in the Detroit River. It’s one of the largest wet-mesic flatwoods in existence and one of only six high-quality occurrences left in Michigan, providing habitat for a variety of rare plants, wildlife species and migrating songbirds. Wet-mesic flatwoods (forested wetlands) once were prominent along the Detroit River. Efforts to restore natural water flow, retain surface water and enhance ecological integrity began in spring 2021 and will help reverse damage that has occurred over the past two centuries.

Detailed information can be found here (120MB PDF Download).

Filed Under: Clippings Tagged With: Belle Isle, DNR, restoration, wetland

Favorites, Follies & Fun

May 12, 2021   •   Leave a Comment

By Christine Jamieson

When I first started to garden, I wanted everything: a pond; a fountain with plumes of water flashing in the sun; arches covered with fragrant roses, honeysuckle and clematis; pleached allees made of hornbeam; an arboretum (albeit a miniature one); garden “rooms”; a rockery; trough garden; alpine house; fruit trees; plus every perennial that would grow in Michigan and many that would not. No vegetables though, I couldnʼt deal with the glut. At one point I was ready to order two silver-leaved senecios (variety ʻSunshineʼ) and plant them in gigantic tubs at my front door, but even I was daunted by the difficulties of housing them over the winter in our small ranch. Garden features like sculpture and benches always appealed to me, but my primary interest was, and is, the plants.

An early entry in my garden journal reads: “Had a stunning idea in the middle of the night to make a dry pool where the small circular bed of tulips is. I am going to put a grass in the middle, either plume grass (Erianthus ravennae) or a thinner one (Miscanthus sinensis ʻGracillimusʼ perhaps), to be a fountain. My water is going to be lamb’s ears (Stachys byzantina ʻSilver Carpetʼ), and Iʼm going to edge it with two layers of those flat stones and drape creeping phlox over the edge to give foliage contrast.”

Initially, I started in a small way with a winter garden bed in front of the family room window and filled it with Japanese holly, American holly, leucothoe, bulbs and hellebores. After that I never looked back. “Youʼll be sorry,” my mother said to me one day as I was digging up yet more lawn—and she was right. Eventually I had no time for proper maintenance, which just goes to show we should always listen to our mothers.

I decided to create a large “room” edged with evergreens in the middle of the lawn. I tried yews, but they were so slow that I moved them to the back of the yard where they eventually grew into a splendid hedge. I finally settled for roses—tough, northern-grown ones. By now I was so enthusiastic that I joined the Lily Society, the American Horticultural Society, the Primrose, Daffodil and Rose Societies, the English Hardy Plant Society, and subscribed to several gardening magazines.

My first passion was bulbs—I planted several thousand the first year, never again, but it was worth it the following spring. I had snowflakes (both the spring and summer leucojums), several varieties of hardy cyclamen, hardy gladioli, real English bluebells, fritillaries, plus the more ordinary tulips, daffodils and crocus, and all sorts of alliums. I fell in love with Oriental poppies and Siberian, English, Dutch, Japanese and Louisiana iris, lilies, and then dwarf evergreens. I remember searching for Christopher Lloydʼs favorite arborvitae (Thuja occidentalis ʻRheingoldʼ) and then lo and behold the following year gardening had become the number one leisure pastime in the country and it turned up at a local nursery.

Of course it wasn’t long before I was trying to grow difficult stuff. One evening I was at a party full of avid gardeners and my friend from the Lily Society said, “Guess what Iʼm trying to grow?” “Himalayan blue poppy,” I replied promptly. “How did you know?” he asked stunned. I knew because it is an irresistible flower and I had just been having a go myself, but it hates Michigan weather and who can blame it?

One year I planted green flowers. “Ugh, green flowers,” my rude friends said and then fell about laughing, but there was something so exotic about bells of Ireland (Moluccella laevis), stinking hellebore (Helleborus foetidus), green coral bells, green zinnias, and the odd-looking snake’s head iris (Iris tuberosa) with its black velvet and green petals. Black was another color I liked—except in tulips—and when my first black pansy flowered I called my friend and she rushed over to admire it. What she actually said was that she had been expecting something the size of a dinner plate, whereas this was only small and very disappointing. Not to me though—I loved its soft kitten face with the yellow eye at the center; it grew prolifically and re-seeded itself year after year.

After this I entered my snob stage—the more minuscule and unusual the plant, the better. I tried all sorts of saxifrages and other rock plants, particularly rock roses (Helianthemum), which are very beautiful with their bright flowers and delicate foliage. That didnʼt last too long—eventually I preferred stuff that would grow well and could be seen, particularly tree and herbaceous peonies, Japanese anemones, hostas and pinks (Dianthus). I also love flat-faced flowers like yarrow and sedum. Yellow is a favorite color and it looks lovely combined with soft, dusty pink as well as the more usual blue.

Eventually I bought some fruit trees—apples that George Washington and Thomas Jefferson had grown, an old apricot variety, a couple of peaches, a cherry and a wonderful gooseberry called ʻPoorman.ʼ My piece de resistance in fruit trees was a Smyrna quince with golden fruit the shape of a gigantic pear, but covered in a soft downy skin. Its flesh can be made into a lovely pink preserve which tastes rather odd, but is eaten with meat in the Middle East.

I used to be rather scathing about annuals but now I rather like them—so cheap and cheerful and utterly reliable. One plant I can do without is devil’s trumpets (Datura); for some reason I find it incredibly sinister-looking.

However, thatʼs my taste, and what makes gardening such fun is that you can do whatever you want on your own patch of land. At the moment I am into container gardens. I found two marvelous copper preserving pans in a junk shop and filled them with bulbs for spring and annuals for the summer. I put all kinds of pots on the patio and am trying all sorts of things in them, from geraniums to ladyʼs mantle (Alchemilla mollis), lilies and dwarf evergreens. One day I discovered an abandoned cast iron bath tub in a derelict house which I desperately wanted to make into a trough garden, but I couldn’t work out how to get it home, not even with the help of the family. 

So for what it’s worth, my advice is to plant what you like, dream dreams, and enjoy yourself. I wonder if I should buy a greenhouse and grow orchids…

Filed Under: Clippings

Mountain pine beetle quarantine enacted in Michigan

January 11, 2021   •   Leave a Comment

Damage caused by the Mountain Pine Beetle in British Columbia, Canada. (Photo: Jonhall / Wikipedia)
Damage caused by the Mountain Pine Beetle in British Columbia, Canada. (Photo: Jonhall / Wikipedia)

The Michigan Department of Agriculture and Rural Development (MDARD) is working to protect Michigan’s pine trees from a potentially devastating pest: the mountain pine beetle. One of the most destructive forest pests in North America, it is known for outbreaks that have killed millions of pine trees in the western United States and Canada.

According to MDARD Director Gary McDowell, “Mountain pine beetle hasn’t been detected in Michigan yet, but we’re taking the necessary, proactive steps to ensure our pine resources are here for generations to come,” said McDowell. The state’s new “Mountain Pine Beetle Exterior State Quarantine” regulates the movement of pine forest products with bark including logs, stumps, branches, lumber and firewood originating from a number of impacted western states.

The beetles affect pine trees by laying eggs under the bark and introducing a blue stain fungus. The joint action of larval feeding and fungal colonization kills the host tree within a few weeks of successful attack. As beetle populations increase, or as more trees become stressed because of drought or other causes, the beetle population may quickly increase and spread.

Mountain pine beetle has expanded its range, moving northward and eastward. The expansion is attributed to warmer winters, which allow more beetles to survive. Michigan’s pine resources are at risk of attack, including white pine, jack pine, red pine, Austrian pine, and Scots pine. Learn more about the quarantine here. 

Filed Under: Clippings Tagged With: Austrian pine, jack pine, Michigan, mountain pine beetle, pest, red pine, Scots pine, White Pine

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