By Art Kabelowsky, DNR Forest Health Communications, Fitchburg;
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167
Andrea Billings insists that she doesn’t do all that much volunteering.
But if most people in Wisconsin regularly put in the time Billings does, a considerable dent would be made in the state’s dealings with invasive plant species.
Continue reading “Volunteer Billings Digs Deep In Battle Against Invasives”
Common teasel in bloom. The flowerheads of teasel species are distinct, unusually large, stiff and sturdy. / Photo Credit: Steve Dewey, Utah State University, Bugwood.org
By Erika Segerson-Mueller, DNR Invasive Plant Program Specialist, Oshkosh Service Center
Erika.SegersonMueller@wisconsin.gov or 715-492-0391
Two species of teasel are present in Wisconsin: common teasel (Dipsacus fullonum) and cut-leaved teasel (Dipsacus lacinatus). Although they are known today as invasive plants, their Latin names speak to a useful history.
The species name of common teasel (fullonum) comes from “to full,” a step in woolen clothmaking that involves using water and agitation. Teasels, native to Europe, were introduced to North America in the 1700s to be used in this manner by textile processors. The stiff and sturdy flower heads of teasel were used to comb the surface of damp cloth to give it a fluffier finish. Continue reading “Teasing Out Invasive Teasels”
Note:
The original version of this Forest Health News article has been removed because the journal article in Science magazine that was referenced has been retracted by its authors due to a mathematical error. The journal authors reran their analysis and although many results remained unchanged, the statistical significance of some conclusions, and the results of some robustness tests, did change. It is unclear to what degree these errors affected observations in the Forest Health News article, so that article was removed. More information is available here.
A slime mold perched on a vine.
By Michael Hillstrom, DNR Forest Health Specialist, Fitchburg;
Michael.Hillstrom@wisconsin.gov
What’s the orange goo on that tree?
Should I fight, or should I flee?
I bet forest health staff can ID!
Indeed, there are a number of types of orange goo in the woods during spring.
If it’s a lumpy mass of goo on a log, stump or mulch, then it’s probably a slime mold. Slime molds are an amoeba-like group of organisms called myxomycetes. They move very slowly to eat bacteria and organic matter. Slime molds are harmless, so unless it is covering something of value, just leave it be, and it will disappear on its own. Continue reading “What’s That Orange Goo?”
By Erika Segerson-Mueller, DNR Invasive Plant Program Specialist, Oshkosh Service Center;
Erika.SegersonMueller@wisconsin.gov or 715-492-0391
With 145 invasive plants regulated under Wisconsin’s Invasive Species Rule NR40, it can be challenging to identify some of these plants while out in the woods.
The task can be further complicated by the presence of native lookalikes, plants that appear very similar to harmful invasive species but benefit wildlife, pollinators and ecosystems in Wisconsin.
Continue reading “Invasives And Imposters: Native Lookalikes To Know (Part 1)”
By Carmen Hardin, DNR Applied Forestry Bureau Director;
Carmen.Hardin@wisconsin.gov
Existing seed cleaning equipment at Hayward State Nursery is scheduled for an update.
Landowners across the state have stepped up in a big way when it comes to planting trees.
At the end of 2023, more than 32 million trees had been planted and tallied as part of Wisconsin’s Trillion Trees Pledge. The program started in 2021 when Governor Tony Evers committed the state to planting 75 million trees and conserving 125,000 acres of forestland by 2030. Continue reading “Wisconsin Expands Trillion Trees Pledge”
By Erika Segerson-Mueller, DNR invasive plant program specialist, Oshkosh
Erika.SegersonMueller@wisconsin.gov or 715-492-0391
Invasive jumping worms have a light-colored clitellum, while most worm species have a raised, pink clitellum. / Photo Credit: Brad Herrick, UW-Madison Arboretum
To reiterate some advice you may have heard long ago from your parents: Don’t give rides to hitchhikers. They may have been thinking about people, but hitchhiking invasive plants, insects and pathogens are also worthy of concern.
As you dream of days spent at the cabin up north, planting your garden or wandering in the woods, here are a few reminders to help you avoid bringing hitchhiking invasives along as you enjoy your spring and summer activities. Continue reading “Avoid Hitchhikers This Summer”
By Art Kabelowsky, DNR forest health communications and outreach specialist, Fitchburg
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167
As Wisconsin braces for another potentially busy season of spongy moth caterpillars, three state agencies have teamed up to make it easier for tree owners and others to access the latest information and advice on the invasive, leaf-chomping pests.
The Wisconsin Department of Natural Resources (DNR) has joined the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) and the University of Wisconsin-Madison Extension to revamp the state’s interagency spongy moth information webpage.
Renamed the “Spongy Moth Resource Center,” a first glance at the document reveals basic information on the insect. But by following a new list of “Frequently Asked Questions,” visitors can tunnel deeper to more easily find information that applies specifically to their situation.
Continue reading “Spongy Moth Resource Center Hatches Just In Time”
By Paul Cigan, DNR forest health specialist, Hayward;
Paul.Cigan@wisconsin.gov or 715-634-9232
The emerald ash borer was detected in the Wisconsin counties of Taylor and Washburn in April, making them No. 70 and No. 71 of Wisconsin’s 72 counties that have confirmed presence of the invasive insect.
The emerald ash borer (EAB) has been detected for the first time in Washburn and Taylor counties, making them the No. 70 and No. 71 of Wisconsin’s 72 counties to have a confirmed detection of the invasive insect.
Here are the details of the most recent discoveries: Continue reading “Emerald Ash Borer Detected In Washburn, Taylor Counties”
By Krista Hamilton, Wisconsin Department of Agriculture, Trade and Consumer Protection;
Krista.Hamilton@wisconsin.gov
Hungry cicadas are expected to emerge from their 17-year dormancy this month to feed and mate. In past emergences, Brood XIII cicadas have been documented in 11 southern Wisconsin counties. / Photo Credit: Jim Occi, BugPics, Bugwood.org
In anticipation of the emergence of the Brood XIII periodical cicada this spring, the University of Wisconsin-Madison introduced a new Wisconsin Periodical Cicada website.
Information on the site covers the biology, ecology and distribution of these insects using photos, historical videos and other useful resources.
UW-Madison entomologist PJ Liesch sifted through 150 years of books, newspaper articles, university studies, government records and specimens in the Wisconsin Insect Research Collection to develop an updated map of Wisconsin periodical cicada reports.
Continue reading “UW-Madison Launches Website About Cicadas”
