Eastern Red Bud. Rutgers has some great courses for landscapers. Here's one taught by Rutgers Professors, but not at Rutgers. Soil Biology and its Effects on Tree Management Monday May 10 9:00 a.m. – 4:00 p.m. Dr. Joseph Heckman, Professor of Soil Science, Rutgers University Dr. Jason Grabosky, Professor of Ecology, Evolution and Natural Resources, Rutgers University This course will address the nature and composition of soils and how they impact the health and development of trees and shrubs. We will examine the structural and chemical composition of soil as well as our historical understanding of it. Most importantly we will examine the “living” component of soil, from microbes and earthworms to mycorrhiza and learn how the life below ground affects the growth of the trees above. Students will receive a 48-page primer on soil biology as well as a compendium of relevant articles as part of the class fee. This course carries 6 CEUs for ISA arborists and 6 CEUs for Pennsylvania landscape architects. Fee: $140 (includes lunch) To register, see the brochure of all professional offerings at http://www.business-services.upenn.edu/arboretum/ed_arboriculture.shtml or call the Morris Arboretum at 215-247-5777, ext. 125 or 156.