the davey institute grant jones davey tree expert company from the “big tree” to your own...
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The Davey Institute
Grant JonesGrant Jones
Davey Tree Expert CompanyDavey Tree Expert Company
From the “Big Tree” to Your From the “Big Tree” to Your Own Backyard Own Backyard
The Davey Institute
The Davey Institute
• State Champion until recently with a 44’ height, 89’ spread State Champion until recently with a 44’ height, 89’ spread and 35’ trunk circumference.and 35’ trunk circumference.
•Keeps getting youngerKeeps getting younger
The Davey Institute
The Davey Institute
• Value of Live Oak WoodValue of Live Oak Wood
• Myths and LegendsMyths and Legends
The Davey InstituteEnvironmental ThreatsEnvironmental Threats
• HurricanesHurricanes
• FloodingFlooding
• High WindsHigh Winds
• TornadoesTornadoes
• Winter FiresWinter Fires
Photo Source: National Climate Data Center
The Davey InstituteNatural ProtectionNatural Protection
• Protected by barrier Protected by barrier islandisland
• High groundHigh ground
• Shallow bayShallow bay
The Davey InstituteBiggest threat to the Big Tree . . . Biggest threat to the Big Tree . . .
The Davey InstituteBiggest threat to the Big Tree . . . The Public Biggest threat to the Big Tree . . . The Public
Source: houseonmarystreet.blogspot.com
The Davey InstituteDavey’s InvolvementDavey’s Involvement
Davey’s been involved in caring for the Big Tree for over Davey’s been involved in caring for the Big Tree for over 40 years 40 years
The Davey InstituteDeep Root Fertilization with MycorrhizaeDeep Root Fertilization with Mycorrhizae
The Davey InstituteIncorporate Soil AmendmentsIncorporate Soil Amendments
The Davey InstituteRemoving DeadwoodRemoving Deadwood
The Davey InstituteCablingCabling
The Davey InstituteProppingPropping
The Davey InstituteLightning Protection SystemLightning Protection System
The Davey InstituteCan I apply these practices to the tree in my yard?Can I apply these practices to the tree in my yard?
The Davey InstituteDeep Root FertilizationDeep Root Fertilization
Use a slow release Use a slow release fertilizer with low salt fertilizer with low salt indexindex
The Davey InstituteRemove CompetitionRemove Competition
Photos courtesy of the Univ. of Illinois
The Davey InstituteCompetitionCompetition
Image from Principles and Practice of Planting Trees and Shrubs
The Davey InstituteMulch But Do It Right!Mulch But Do It Right!
• May create more May create more problemsproblems
• Don’t pile against trunkDon’t pile against trunk
• Use composted wood Use composted wood mulchmulch
• 2-3 inch depth beneath 2-3 inch depth beneath the driplinethe dripline
The Davey InstitutePruningPruning
• Do It Right!Do It Right!
– Don’t OverpruneDon’t Overprune
– Plan Ahead and Train Plan Ahead and Train Young TreesYoung Trees
– Make Good Cuts That Make Good Cuts That Promote Callus Promote Callus FormationFormation
– Limit DecayLimit Decay
– Don’t Promote Excessive Don’t Promote Excessive Top GrowthTop Growth
The Davey InstituteTraining Young Trees - AfterTraining Young Trees - After
Source: Arborist News, Dec 1996Source: Arborist News, Dec 1996
The Davey InstituteGoals for Pruning Mature TreesGoals for Pruning Mature Trees
• Remove deadwoodRemove deadwood
• Reduce potential Reduce potential hazardshazards
– Shorten length of Shorten length of overextended limbsoverextended limbs
• Thin branches from Thin branches from edge of canopyedge of canopy
• Remove as little live Remove as little live tissue as possible to tissue as possible to accomplish goalsaccomplish goals
The Davey InstituteSupport SystemsSupport Systems
• Supplemental support to Supplemental support to leaders, individual limbs leaders, individual limbs and/or the whole plantand/or the whole plant
• Used to limit or minimize Used to limit or minimize potential storm damagepotential storm damage
• Prune to correct defects Prune to correct defects before installing cabling or before installing cabling or bracingbracing
• Systems need routine Systems need routine inspection and have a fixed inspection and have a fixed life spanlife span
The Davey InstituteBracingBracing
Images courtesy of International Society of Arboriculture
The Davey InstituteCablingCabling
Images courtesy of International Society of Arboriculture
The Davey InstituteLightning ProtectionLightning Protection• Trees most often struck:Trees most often struck:
– MapleMaple
– AshAsh
– Tulip TreeTulip Tree
– SpruceSpruce
– PinePine
– SycamoreSycamore
– PoplarPoplar
– OakOak
– HemlockHemlock
– ElmElm
The Davey InstituteRadial Trenching / Vertical MulchingRadial Trenching / Vertical Mulching
The Davey InstituteFilling With AmendmentsFilling With Amendments
• Fill with Fill with materials that materials that will not will not decomposedecompose