1. The Davey Institute Grant Jones Davey Tree Expert Company From the “Big Tree” to Your Own Backyard

2. The Davey Institute

3. State Champion until recently with a 44’ height, 89’ spread and 35’ trunk circumference. State Champion until recently with a 44’ height, 89’ spread and 35’ trunk circumference. Keeps getting youngerKeeps getting younger

4. The Davey Institute

5. Value of Live Oak Wood Value of Live Oak Wood Myths and Legends Myths and Legends

6. The Davey Institute Environmental Threats HurricanesHurricanes FloodingFlooding High WindsHigh Winds TornadoesTornadoes Winter FiresWinter Fires Photo Source: National Climate Data Center

7. The Davey Institute Natural Protection Protected by barrier islandProtected by barrier island High groundHigh ground Shallow bayShallow bay

8. The Davey Institute Biggest threat to the Big Tree...

9. The Davey Institute Biggest threat to the Big Tree... The Public Source: houseonmarystreet.blogspot.com

10. The Davey Institute Davey’s Involvement Davey’s been involved in caring for the Big Tree for over 40 years

11. The Davey Institute Deep Root Fertilization with Mycorrhizae

12. The Davey Institute Incorporate Soil Amendments

13. The Davey Institute Removing Deadwood

14. The Davey InstituteCabling

15. Propping

16. Lightning Protection System

17. The Davey Institute Can I apply these practices to the tree in my yard?

18. The Davey Institute Deep Root Fertilization Use a slow release fertilizer with low salt index Use a slow release fertilizer with low salt index

19. The Davey Institute Remove Competition Photos courtesy of the Univ. of Illinois

20. The Davey Institute Competition Image from Principles and Practice of Planting Trees and Shrubs

21. The Davey Institute Mulch But Do It Right! May create more problemsMay create more problems Don’t pile against trunkDon’t pile against trunk Use composted wood mulchUse composted wood mulch 2-3 inch depth beneath the dripline2-3 inch depth beneath the dripline

22. The Davey InstitutePruning Do It Right!Do It Right! –Don’t Overprune –Plan Ahead and Train Young Trees –Make Good Cuts That Promote Callus Formation –Limit Decay –Don’t Promote Excessive Top Growth

23. The Davey Institute Training Young Trees - After Source: Arborist News, Dec 1996

24. The Davey Institute Goals for Pruning Mature Trees Remove deadwoodRemove deadwood Reduce potential hazardsReduce potential hazards –Shorten length of overextended limbs Thin branches from edge of canopyThin branches from edge of canopy Remove as little live tissue as possible to accomplish goalsRemove as little live tissue as possible to accomplish goals

25. The Davey Institute Support Systems Supplemental support to leaders, individual limbs and/or the whole plantSupplemental support to leaders, individual limbs and/or the whole plant Used to limit or minimize potential storm damageUsed to limit or minimize potential storm damage Prune to correct defects before installing cabling or bracingPrune to correct defects before installing cabling or bracing Systems need routine inspection and have a fixed life spanSystems need routine inspection and have a fixed life span

26. The Davey InstituteBracing Images courtesy of International Society of Arboriculture

27. The Davey InstituteCabling Images courtesy of International Society of Arboriculture

28. The Davey Institute Lightning Protection Trees most often struck:Trees most often struck: –Maple –Ash –Tulip Tree –Spruce –Pine –Sycamore –Poplar –Oak –Hemlock –Elm

29. The Davey Institute Radial Trenching / Vertical Mulching

30. The Davey Institute Filling With Amendments Fill with materials that will not decomposeFill with materials that will not decompose