Teasing Out Invasive Teasels

Posted on by akabelowsky
Common teasel in bloom. The flowerheads of teasel species are distinct, unusually large, stiff and sturdy.

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” →

Retracted: Study Shows Drought Harms Wetter Forests Most

Posted on by akabelowsky

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Forest Health News article has been removed because the journal article in Science magazine that was referenced has been retracted by its authors due to a mathematical error.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.

What’s That Orange Goo?

Posted on by akabelowsky

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?” →

Invasives And Imposters: Native Lookalikes To Know (Part 1)

Posted on by akabelowsky

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)” →

Register Now For May 15 Webinar On Inflation Reduction Act Grants And Community Engagement

Posted on by janness

children playing in parkThe Urban Forestry Inflation Reduction Act grant program uses federal funds to support projects that positively impact trees and people within disadvantaged communities in Wisconsin.

Cities, villages, towns, counties, tribes and 501(c)(3) nonprofit organizations conducting their projects in Wisconsin may apply for an Urban Forestry Inflation Reduction grant. Eligible projects must occur in or benefit those living in disadvantaged communities. To learn if your community is eligible, check the DNR’s map of identified communities, also available formatted as a list. Applications are due June 3, 2024.

DNR staff will host another webinar on May 15 on the Urban Forestry Inflation Reduction Act grant application process and allow time for questions and answers. This webinar will begin with a presentation by UW Extension staff on ways to engage with your community through urban forestry. See the links below to access recordings of previous webinars and register for the May 15 webinar.

      • If you have attended a previous IRA webinar, you are encouraged to register for this session as well, which will include new information on community engagement.

For more information, visit the Wisconsin DNR Urban Forestry webpage.

Continue reading “Register Now For May 15 Webinar On Inflation Reduction Act Grants And Community Engagement” →

10 Easy Ways To Engage Your Community In Urban Forestry

Posted on by janness
  1. Partner with community groups such as 4-H, Scouts, rotary clubs and neighborhood associations to plant and care for trees.
  2. Set up informational tables at community events and farmers markets to recruit volunteers, educate residents and conduct surveys.
  3. Host workshops to teach community members about urban forestry and tree care.
  4. Post resources or hold a Q&A on social media.
  5. Conduct surveys to determine which tree species residents would like to see in their community.
  6. Cohost events with other departments or organizations with similar goals.
  7. Connect with environmental science classes in your school district to provide hands-on education activities.
  8. Post educational signs with QR codes that link to more information where urban forestry work is being done.
  9. Knock on residents’ doors to explain in person or with a flyer what you will be doing before starting tree work in the vicinity of their homes.
  10. For even more ideas, watch the Arbor Day Foundation’s recorded webinar, “How to Collaborate and Engage More Equitably in Your Tree City.”

Continue reading “10 Easy Ways To Engage Your Community In Urban Forestry” →

May Is Mental Health Awareness Month, But Trees Provide Benefits All Year Long

Posted on by janness

Over the years, a growing body of research has proven that regular access to trees makes us happier and healthier. They restore our sense of calm from head to toe — improving memory and attention span, enhancing cognitive functioning, lowering blood pressure, and reducing cortisol levels.

In honor of Mental Health Awareness Month, here are just a few ways trees can support your mental well-being. Continue reading “May Is Mental Health Awareness Month, But Trees Provide Benefits All Year Long” →

Spring Invasive Plant Management Workshop

Posted on by janness

Many residents and land managers in southeastern Wisconsin search for effective and efficient practices to control exotic invasive plants in our natural areas. The Southeastern Wisconsin Invasive Species Consortium is teaming up again with Johnson’s Nursery to offer Invasive Plant Management Workshops in 2024.

Take this class to ensure that you are using the most appropriate, efficient, up-to-date and least environmentally damaging methods in those efforts. Continue reading “Spring Invasive Plant Management Workshop” →

Botanical Sexism: Fact Or Fiction?

Posted on by janness
pink tree flowers

Photo Credit: Delisa White

By Elton Rogers, Urban Forestry Coordinator

The DNR was recently contacted by a local news station to comment on a theory that tends to pop up alongside the tulips every spring: “botanical sexism,” a theory attributed to horticulturist Tom Ogren.

As a theory, botanical sexism is rather simple. It states that over time, humans have preferentially propagated and planted male trees, thus leading to increases in pollen production and subsequent allergens in our cities. The hypothesis is simple, and the term is catchy, so it is no surprise that it has made its way into the world of social media, having gone viral on several platforms over the last few years. The question remains, however, whether this concept is indeed factual. Continue reading “Botanical Sexism: Fact Or Fiction?” →