Emerald Ash Borer Program - Barrie · March 26, 2012: Council adopts the Emerald Ash Borer Program...
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Emerald Ash Borer Program County of Simcoe Municipal Workshop Presented by: Kevin Rankin, M.Sc.F., R.P.F. Urban Forester City of Barrie Roads, Parks and Fleet Department December 5, 2013
Transcript of Emerald Ash Borer Program - Barrie · March 26, 2012: Council adopts the Emerald Ash Borer Program...
Emerald Ash Borer Program
County of Simcoe Municipal Workshop
Presented by: Kevin Rankin, M.Sc.F., R.P.F. Urban Forester City of Barrie Roads, Parks and Fleet Department December 5, 2013
Emerald Ash Borer Program
Emerald Ash Borer Program
• Current Forest Condition • Tree Inventory
• Pest Preparedness Policy
• Emerald Ash Borer Program
• Implementation Plan
• Financial
• Summary
Current Forest Condition
FOREST INVENTORY
• Total forested areas (private and public) in Barrie = 1,595 hectares (19.6% of total land area)
– Woodlots in City Ownership = 601 hectares (38% of total forested area)
– 145 km of city owned forest bordering with private lands
Emerald Ash Borer Program
Current Forest Condition – Forested Areas (north)
Emerald Ash Borer Program
Current Forest Condition – Forested Areas (south)
Emerald Ash Borer Program
Current Forest Condition
URBAN TREE INVENTORY
• Approximately 140,000 individual trees (private and public) in Barrie (mapped in GIS database)
• Includes:
– 15,000 Open Space Park Trees and
– 34,000 Street Trees
Emerald Ash Borer Program
Current Forest Condition
Emerald Ash Borer Program
0%
10%
20%
30%
40%
50%
60%
Acer
(M
aple
)
Tilia
(L
inde
n)
Frax
inus
(A
sh)
Que
rcus
(O
ak)
Gle
dits
ia
(Hon
eylo
cust
)
Syr
inga
(Iv
ory
Silk
)
Cel
tis
(Hac
kber
ry)
Mal
us
(Cra
b Ap
ple)
All O
ther
Spe
cies
2004
2013
Percent of genus in urban tree inventory; changes from 2004-2013.
Current Forest Condition Street Tree Inventory (34,000 trees in 2013; >50% incr. from 2004)
Emerald Ash Borer Program
90.1%
9.5% 0.4%
Relative Age Classes of Street Trees
Young
Mature
Over Mature
Current Forest Condition Ash Street Tree Inventory (3,028 trees)
Emerald Ash Borer Program
0
200
400
600
800
1000
1200
1400
1600
<7.5 8-15 16-30 31-45 46-60 61-75 76-90
MARSHALL'S SEEDLESS ASH WHITE ASH SUMMIT ASH PATMORE ASH FALLGOLD ASH AUTUMN PURPLE ASH GREEN ASH
DBH (cm)
Current Forest Condition Annual Planting Program
Emerald Ash Borer Program
168
195
223 272
224
434
436
679
565 62
2 750 84
5
45
0 52
76
88 22
9 364 43
6
633
1,79
1
1,88
5
2,15
2
0
500
1,000
1,500
2,000
2,500
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013*
Tree
s Pl
ante
d
Year
Street Trees
Park Trees
Pest Preparedness Policy 2004
“The City of Barrie will provide public education and awareness of the significant threat that Asian Long-horned Beetle and Emerald Ash Borer poses to our urban forest.”
Staff to monitor ALHB, EAB
and other future forest pests.
Emerald Ash Borer Program
Pest Preparedness Policy
Emerald Ash Borer Program
ALHB HOST TREES EAB HOST TREES
Pest Preparedness Policy
Emerald Ash Borer Program
Monitoring Priorities
Categorized monitoring areas based on tree species composition, proximity to traffic volumes and “hot spots”
Pest Preparedness Policy
November 2006: EAB Discovered in London
2007: Barrie implements a moratorium on planting Ash trees on public lands and recommends that Fraxinus be omitted from all private landscaping plans (e.g. site plan development)
Emerald Ash Borer Program
Pest Preparedness Policy
Emerald Ash Borer Program
2011:
Pest Preparedness Update: EAB Program
Emerald Ash Borer Program
Possible Key Options
• Removal and Replacement of all Ash • Treatment of all Ash • Combination of above • Do nothing
Recommendation based on long-term analysis of existing tree inventory data: Combination of Replacement and treatment of significant trees
Pest Preparedness Update: EAB Program
March 26, 2012: Council adopts the Emerald Ash Borer Program
Projected 15-Year, Two Phase EAB Program:
Phase 1: 2012 to EAB discovery in Barrie
a) Identify specimen ash trees for treatment
b) Begin systematic removal and replacement of young ash trees on boulevards
c) Proactive planting in areas of high ash component
d) Public education on EAB
Emerald Ash Borer Program
Pest Preparedness Update: EAB Program
Phase 2: Post Discovery of EAB
e) Begin bi-annual treatment of specimen ash
f) Systematic removals to include mature ash where integration with other programs create efficiencies (e.g. block pruning program)
g) Removal of all ash trees on a street or within a park where EAB has been discovered.
Emerald Ash Borer Program
Implementation Young Ash Street Tree Replacements 2013-2019 (1,788 trees)
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0
50
100
150
200
250
300
2013 2014 2015 2016 2017 2018 2019
WHITE ASH
SUMMIT ASH
PATMORE ASH
MARSHALL'S SEEDLESS ASH GREEN ASH
FALLGOLD ASH
AUTUMN PURPLE ASH
Implementation
Emerald Ash Borer Program
Ash Replacement Mapping
Financial
Emerald Ash Borer Program
15-Year Projected Costs
Street Tree Ash Replacement Program: $1.9 million
Parkland Ash Replacement Program: $0.9 million
Treatment of Significant Trees: $10,000/yr for 15+ years
Total 15 Year Projected Program Cost: $2.8 million
Financial
Emerald Ash Borer Program
$0
$50
$100
$150
$200
$250
$300 20
12
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Estim
ate
in th
ousa
nds
$
Year
Park & EP Trees Street Trees
Projected Costs for the EAB Program
Summary
Emerald Ash Borer Program
Assess
Develop
Implement
Monitor
Tree Inventory
Policy
