By Erika Segerson-Mueller, DNR invasive plant program specialist, Oshkosh;
Erika.SegersonMueller@wisconsin.gov or 715-492-0391
The white milky sap of spurge plants, sometimes called “wolf’s milk,” can be toxic to cattle and irritating to human skin. / Photo Credit: Norman E. Rees, USDA Agricultural Research Service Retired, Bugwood.org
Managing invasive plant species can really be a pain. When the plants you are targeting can potentially harm human health, that pain can become quite literal.
Leafy spurge (Euphorbia esula) and Cypress spurge (Euphorbia cyparissias) are restricted invasive plants under Wisconsin’s Invasive Species Rule NR40. Aside from their tendency to spread aggressively and displace native species, both plants contain a white milky sap that can cause skin irritation in some humans and is potentially toxic to cattle and horses. Continue reading “The Scourge Of Spurge, Both Cypress And Leafy”
The boundaries of the Northeast, East Central and North Central DNR Urban Forestry regions will be altered at the end of April to balance workload across the regions better. The changes are:
The first Arbor Day celebration was held in Nebraska in 1872. More than 150 years later, Arbor Day is celebrated in all 50 states and in many countries around the world. This year, Arbor Day will be observed in Wisconsin on Friday, April 26. Below are ways you can celebrate, educate and care for trees in your community.
For the last few years, our urban forestry team has been writing social media posts for Wisconsin communities to post during Arbor Week. We encourage you to use social media to celebrate the many benefits of trees and inform the public about the importance of tree care.
The Wisconsin Climate and Health Collaborative, a group of climate and health professionals from across the state working to create a healthier climate, people and communities through local action, wants to learn from you and your community! Take this short 
The University of Massachusetts Amherst is bringing back its Urban Forestry Today’s Summer Tree Summit, kicking it off with a discussion of how to define environmental justice in the context of urban tree canopy cover and urban forest management. Join Dexter Locke from the USDA Forest Service as he explains these important terms and concepts and their practical ramifications for urban foresters and residents.
