Invasive Species

View of Garlic Mustard plantPlants

Garlic Mustard

Volunteers are needed! The Portage Environmental Board schedules invasive plant species pulls to remove the garlic mustard plant every spring. Scheduled garlic mustard pulls are complete for 2018. The next pulls will be scheduled for April/May, 2019. Please check back in the spring for new dates.

Thanks to all of our volunteers this year.  

Group Photo 5-5-18Pull 5-5-18

The pulls run from 9 a.m. to noon. Information on identification, removal and disposal will be provided, as well as needed supplies and tools. Interested volunteers can contact the Transportation and Utilities Department at 269-329-4422 for additional information - or just show up to pull!


Gypsy Moth

Gypsy moths are a common pest species that feeds on the leaves of many trees common to Southwest Michigan, such as oaks, aspens, and willow trees. Most healthy trees can survive even complete defoliation for a few years. Gypsy moth infestations can be unsightly and worrisome to homeowners who are concerned for the health of their trees.  These pests can be controlled through early identification and intervention, but in the worst case, these infestations are cyclical and will pass on their own after a few years.  The presence of an infestation can be reported at  For further information, the Michigan State University Department of Forestry has several publicly available resources for further research and consideration.  Read on... to learn more about Gypsy Moths.