With its long lasting flowers the dogwood is one of the iconic trees of early spring. On my street there are two beautiful dogwoods, Cornus florida, a native species. We are fortunate to have these trees because in the past this species has battled anthracnose, the most deadly fungus that can attack dogwoods. The response to the dying off of many native dogwoods is the rise of Kousa dogwood, a Japanese species. The flower is very similar but…