Empire residents will have a little help with invasive garlic mustard this spring with help from Northwest Michigan Invasive Special Network (NMISN).Garlic mustard is on NMISN’s top 12 list of invasive species and presents a high risk to our regional ecology.But it didn’t start out that way. Garlic mustard is one of the many plants brought to the region by pioneers and for many, the first “green”…