State marks Mid-Mich. ash trees
Delta Twp. - A dark war with one of Michigan's deadliest tree killers rages on as surveying crews wearing bright orange vests mark trees with orange spray paint. The Michigan Department of Agriculture is fighting the spread of the emerald ash borer beetle - a tiny, metallic-green insect that wreaks havoc on ash trees while feasting on their sapwood - by employing its Emerald Ash Borer Task Force to mark infected trees for future removal. Last week, the team branded ash trees in a half-mile wide swath of land near Saginaw Highway in Delta Township.