SPRING 2019
A message from Jim ward 2019
ISA Certified Arborist PD-53
In February, we participated in the International Society of Arboriculture, Penn-Del Chapter, symposium held in Lancaster. One of the programs discussed temperature warming and how this will affect trees in Southeastern Pennsylvania.
Staff Recommended Shade Trees
We asked our certified arborists what shade trees they would recommend.
Pennsylvania Big Trees
ISA Certified Arborist PD-1673
Over 133 years ago, Dr. Joseph T. Rochrock documented Pennsylvania’s largest and most magnificent trees. His purpose was to increase the public’s awareness and interest in the importance of trees to our well-being.
Weather and Needle Loss in Conifers
Board Master Certified Arborist
In wet weather, a fungus can more easily infect the needles of the trees for an extended length of time. The temperature and air moisture level are two factors present during the spring growth period that determine how well a fungus will grow, and the severity of an infection for each tree.
ECOLOGICAL SIGNIFICANCE OF LARGE-DIAMETER CANOPY TREES
ISA Certified PD-78
I remember, as a child, visiting friends who had moved from our old leafy neighborhood in Northwest Philadelphia to new homes in the Northeast. I was shocked by the glare of the summer sun on the bare streets and sidewalks.