Upload
danganh
View
217
Download
3
Embed Size (px)
Citation preview
Ontario Report 2008
Ed CzerwinskiOntario Ministry of Natural Resources
Taylor Scarr, Ontario Ministry of Natural Resources
Krista Ryall, Canadian Forest Service
Forest Health Concerns Forest Health Concerns in Ontario 2008in Ontario 2008
• Major Forest Disturbances– Jack Pine Budworm– Spruce Budworm– Forest Tent Caterpillar– Large Aspen Tortrix
• Invasive Pests– GM, PFW, LCB, EAB…
• Regionally Significant Problems– Northwest Region– Northeast Region– Southern Region
Jack Pine Budworm, Choristoneura pinus pinus
1940 1950 1960 1970 1980 1990 20000
1,000,000
2,000,000
3,000,000
4,000,000
5,000,000
6,000,000
Jack Pine Budworm, Tree Mortality
Spruce Budworm, Choristoneura fumiferana
1950 1960 1970 1980 1990 20000
5,000,000
10,000,000
15,000,000
20,000,000
Forest Tent Caterpillar, Malacosoma disstria
1950 1960 1970 1980 1990 20000
5,000,000
10,000,000
15,000,000
20,000,000
25,000,000
Large aspen Large aspen tortrixtortrixLarge Aspen Tortrix, Choristoneura conflictana
Invasive Pests,
• Gypsy Moth
• Pine False webworm
• Larch Casebearer
• Emerald Ash Borer
Gypsy Moth, Lymantria dispar
GM Larval fungus, Entomophaga maimaiga
0
20
40
60
80
100
0426 0906 1606 24 06 03 07 07 07 21 07
Collection date
% i
nfe
cte
d (
Ld
NP
V)
SWCR Control
Backus Control
SWCR Treated
Pine Grove TreatedVirus
0
20
40
60
80
100
120
0426 0906 1606 24 06 03 07 07 07 21 07
Collection date
% i
nfe
cte
d (
EM
)
SWCR Control
Backus Control
SWCR Treated
Pine Grove Treated
Fungus
Larvae were collected weekly and examined for infection:
• Virus treatment resulted in higher prevalence of virus earlier in the season and at its peak, compared to naturally occurring infection in the controls
• Infection by Entomophaga maimaiga reached 100% in all blocks by early July, wiping out the populations
1980 1985 1990 1995 2000 20050
100,000
200,000
300,000
400,000
Pine False Webworm, Acantholyda erythrocephala
Larch Casebearer, Coleophora laricella
tthehe beetles are coming, and beetles are coming, and yesyes there will be consequencesthere will be consequences
Emerald Ash Borer, Agrilus planipennis
MNR MNR OntarioOntario
Project Overview
• Conduct aerial survey to identify/locate various intensities of ash decline in urban centres.
• Prioritize ground survey crew effort for EAB.
• Enhance detection capacity, using new technology, NRVIS layers, ortho-rectified air photos & DMT.
• Cooperative project between three levels of government:– Federal: CFIA, CFS
– Provincial: OMNR
– Municipal: Toronto, Mississauga, Oakville, Vaughan, York Region, (Hamilton).
Take what we normally do –to the urban forest.
Mission Planning• General Route of Flight.• Obtain exemption to Canadian
Aviation regulations 602.14(2) from Transport Canada Civil Aviation to conduct:
– Low-level flight less than 500 ft AGL
• Base of Operation – Buttonville Airport.
• Emergency Management Plan:– Police, Fire, ambulance, nearest
hospitals, and municipal contact for each municipality we were to cover.
– Official notification sent to each municipality, & those in EMP forwarded to each Emergency Management Service.
• Book/ reserve aircraft & experienced pilot.
• Specific area of flight, flight lines.• Dates, times of flights• EAB data, known locations,
coordinates• Colour photos, road network,
forest and tree inventory if available., natural areas.
– Geospatial Information Licence Agreements to be signed with municipalities.
• Load into DMT.• Backup GPS and paper maps• Each level of government, obtain
necessary approvals.
Results
• Flights occurred August 26 & 27.• 4.1 & 4.5 hrs, respectively• Observed, 60+ trees, locations with ash decline.• Quick ground check disclosed no additional EAB, but
found RHAB, L-AB as well as snow/ice damage.• Detailed branch sampling followed at one selected site –
no EAB.• Follow-up work required:
– Improve upon geospatial information in DMT from different sources. Dedicate individual to specific project in future.
– Continue with branch sampling methodology.– Continue to work with municipalities, forestry.
The little green menace. . . .
Special thanks:
CFIA - Troy Kimoto, Erin Bullas-Appleton
CFS - Hugh Evans, Krista Ryall, Ron Fournier, Anthony Hopkin
MNR – PFCentre, Aspen Zeppa, Don Filliter, Robert O`Halloran, Taylor Scarr, PGeomatics, Joel Mostoway.
Municipalities: Toronto, Mississauga, Oakville, York Region, Hamilton.
Northwest Region,
Ws sawyerWs sawyerWhitespotted Sawyer Beetle, Monochamus s. scutellatus
Aspen mortality and declineAspen mortality and decline
Aspen Decline and Mortality,
Aspen Aspen leafrollerleafrollerAspen Leafroller, Pseudexentera oregonana
Bronze birch Bronze birch borerborer
Bronze Birch Borer, Agrilus anxious
BlowdownBlowdown picpic
Blowdown,
Northeast Region,
Bruce spanworm Bruce spanworm picpicBruce Spanworm, Operophtera bruceata
Southern Region,
Aspen Aspen leafrollerleafrollerAspen Leafroller, Pseudexentera oregonana
Fall cankerworm Fall cankerworm picpicFall Cankerworm, Alsophila pometaria
cherry cherry scallopshellscallopshell moth moth picpic
Cherry Scallopshell Moth, Hydria pruniverata
Cedar leafminer Cedar leafminer picpicCedar Leafminer, Argyresthia thuiella
Hemlock damage Hemlock damage picpic
Hemlock Damage,
Hail DamageHail DamageHail Damage,
Thank you
Ministry of Natural Resources