06/20/2025
Garlic mustard aphids were found at a state natural area feeding on the highly invasive plant.
Garlic mustard poses a major threat to natural landscapes where it takes over with aggressive seed production and releases chemicals into the soil that inhibit the growth of other plants.
Removing this plant from public land takes a lot of time and energy.
Current evidence shows that plants that are fed on by these aphids appear less healthy. There have been several reports in Wisconsin in recent years for what many are hopeful could be a promising new biocontrol.
If you see garlic mustard aphids, you can submit your sighting and view a map of where they’ve been found on the EDDMapS: https://www.eddmaps.org/distribution/viewmap.cfm?sub=88875