Emerald ash borer appears to have spread to a different host, and has now been found and confirmed at the Chicago Botanic Garden. But there’s no need for us to panic—it’s just an interesting find to document. As I blogged in late 2014, a college biology professor in Ohio (Don Cipollini, Ph.D., of Wright State University) discovered … Continue reading Emerald Ash Borer has a new host: White fringetree (Update)
Last week, a college biology professor in Ohio announced he had found evidence that the emerald ash borer (EAB), an invasive insect decimating the continent’s ash trees, is also attacking white fringetrees (Chionanthus virginicus). In August he found the telltale D-shaped exit holes on a fringetree near his home. When he investigated further by peeling back … Continue reading Emerald Ash Borer: Sad But True, Part 3
In the past few months, the number one question I have been asked is “Will the cold winter have an effect on the emerald ash borer?” It’s sad but true that our cold winter will have very little effect on the emerald ash borer. As we know, the emerald ash borer overwinters as larva under the … Continue reading Emerald Ash Borer: Sad But True, Part 2
It’s sad but true: As I drive around the north suburbs, I am noticing many roadside trees with a spray-painted mark or a ribbon around the trunk. As an arborist, I know that these are ash trees marked for removal because of the emerald ash borer (EAB). The emerald ash borer is beginning to hit … Continue reading Signs of Emerald Ash Borer
While working out in the woods this winter, a small lump on the branch of a young elm tree caught my attention. At first I thought it might be a gall, or an injury that had healed-over. On closer inspection, the lump turned out to be a ruby-throated hummingbird nest from last summer. Although I see hummingbirds … Continue reading For Some Birds, Constructing a Nest Could Be a Stretch
