September □ Perform preventative soil insecticide treatments for ash trees, birch trees, and honey locust trees. □ Structural pruning of trees and shrubs □ Removal of broken branches from summer storms □ Monitor and treat for cool season mites and scale insects on pines, spruce, and arborvitaes. □ Begin fall planting of new trees and shrubs. □ Begin treating stressed root systems with aeration and compost additions. October □ Fertilization of trees and shrubs using soil injection technology. □ Top dress mulch beds before winter □ Start planning for winter tree work, and hazard tree assessments! □ Recycle disease-free plant material into compost. □ Plant spring flowering bulbs. □ Continue structural pruning of trees and shrubs November □ Inspect trees before winter, remove weakened limbs before snow hits. □ Inspect and install tree support cables. □ Tie up arborvitaes before snow flies. □ Cut back spireas and other garden perennials. □ Place guards on small trees and shrubs to help prevent rabbit and rodent winter browsing □ Apply antidessiccant spray to evergreens such as arborvitaes, yews, and boxwoods. □ Apply deer and rabbit repellant to yews, arborvitaes and other plants. December □ Make holiday decorations from trees and shrubs in yard. □ Start of winter tree work season– dormant season pruning of oaks and elms. □ Schedule a free winter tree and landscape inspection with one of our certified arborists. January-February □ Take advantage of frozen ground for tree removal. □ Inspect ice storm damaged trees. □ Remove heavy snow from trees and shrubs. (especially arborvitaes) □ Safety prune large trees prone to excessive limb-end weight and weak branches to make them stronger against snow and ice buildup. □ Start planning for spring including early spring tree health treatments