May 7, 2004

Emerald Ash Borer


The latest pest to create a buzz among entomologists in the USA is the emerald ash borer. Previous infestations of this introduced pest found in Michigan, Ohio and Maryland have resulted in millions of dead ash trees (white, black and green). The devastation has been particularly severe because this borer attacks previously apparently healthy trees. The latest troubling news is that a new infestation was confirmed in northwest Indiana in late April.

Deciduous Trees for Difficult Sites


When selecting deciduous trees, choose plants that are adapted to the growing conditions at the planting site. Most trees prefer moist, well-drained soils in full sun. However, there are trees that will tolerate more difficult sites. Lists of deciduous trees that tolerate dry soils, wet soils, and partial shade are provided below. (Locations in partial shade receive 2 to 4 hours of direct sunlight a day.)

Deciduous Trees Tolerant of Dry Soils Northern Catalpa (Catalpa speciosa) Ironwood (Ostrya virginiana)