Spring cleanup is always a busy time in the Northwoods as those with second homes and cabins make the trek northward to prepare for a summer of fun. For many, this will mean cleaning up trees and branches damaged by winter storms.
By Brenna DeNamur, DNR Forest Health Outreach Specialist, Madison, Brenna.DeNamur@wisconsin.gov; Jaqi Christopher, DNR Forest Invasive Plant Specialist, Rhinelander, Jacquelyn.Christopher@wisconsin.gov; & Mary Bartkowiak, DNR Forest Invasive Plant Coordinator, Rhinelander, Mary.Bartkowiak@wisconsin.gov
Spring is here! Invasive plants, like garlic mustard, are often among the first green life to emerge in the new season.
Contact: Paul Cigan, DNR Forest Health Specialist
Paul.Cigan@wisconsin.gov or 715-416-4920
As April brings a high risk of the often-fatal oak wilt disease, the Wisconsin Department of Natural Resources (DNR) recommends not pruning or cutting oaks from April through July.
By Linda Williams, DNR Forest Health Specialist, Woodruff
Linda.Williams@wisconsin.gov or 920-360-0665
In late winter, it’s common to see tree branches that have been freshly stripped of their bark. Damage can be extensive where entire branches, and sometimes entire small trees, can be stripped of bark. This damage, believe it or not, is from squirrels! While primarily found on sugar maples, you can also find squirrel damage on red maples and the occasional oak. So far this year, the damage has been noted in Langlade, Shawano, Oneida and Vilas Counties.
On sunny days, the pale wood of branches where the bark has been stripped off stands out in the forest. This type of feeding can remove enough bark to girdle the branches or the main stem, causing the tree to die from that point to the end of the branch. Branches that are not entirely girdled will continue to grow, and callus tissue will begin to grow over the wounds. If branches are nearly girdled, they may leaf out in the spring only to have the leaves suddenly wilt and die as hot weather hits because the tree can’t move enough water to keep the leaves alive. Continue reading “Squirrel Damage Mayhem”
By Jaqi Christopher, DNR Forest Invasive Plant Specialist, Rhinelander, Jacquelyn.Christopher@wisconsin.gov and Mary Bartkowiak, DNR Forest Invasive Plant Coordinator, Rhinelander, Mary.Bartkowiak@wisconsin.gov
With winter in full swing, many gardeners dream of spring and begin planning what plants to add to their gardens. Now is a great time to brush up on what not to plant to avoid invasive species that might be hiding in plain sight.
Start the year off by pruning your trees to protect them from harmful pests that emerge after the thaw. Continue reading “Prune Oak Trees In Winter To Help Prevent Oak Wilt”
In the event of a wildfire in your area, firefighters may need to reach your home. If firefighters cannot safely access your home, they will find an alternative way to get to you that may take longer – and when fighting fire, every second counts.
Help Firefighters Reach You
You are the first line of defense when it comes to helping your home survive a wildfire. To enable firefighters and other emergency vehicles to locate and reach your residence quickly it’s important to establish a safe route with adequate driveway access.
Wisconsin forests are incredibly diverse in species composition and structure, mainly due to glaciation that occurred until 11,500 years ago across much of the state. Glaciation in Wisconsin reached its maximum extent nearly 21,000 years ago.
To help guide management decisions and considerations, Wisconsin is divided into 16 ecological landscapes defined by the vegetation, climate, geology and hydrology in each ecological unit. Information about each ecological landscape is available on the DNR website in the landscapes topic.
Wisconsin’s dominant forest type group by acreage is oak/hickory (26%), followed by maple/beech/birch (22%). Oak is particularly important as it is used for quality forest products such as furniture and wildlife rely on mast (seed) production for food.
The middle-aged bubble does not only pertain to the baby boomer generation. Wisconsin forests are experiencing this age phenomenon as well. Wisconsin forest data shows a significant bubble of acreage in the middle age class (60-80 years old) with lesser amounts in the very young and very old age classes. This middle age bubble can be attributed in part to the cutover period when many of these forests originated.