Transcript Monitoring the Impact of Herbicide Application on Invasive

Monitoring the Impact of Herbicide
Application on Invasive and Native Plants
in a New Jersey Coastal Dune System
Emily Parker and Louise Wootton, Ph.D.
Georgian Court University, Lakewood NJ
Carex kobomugi
Asiatic Sand Sedge
Native Range of Carex kobomugi
Introduction of Carex kobomugi
• Came in to NJ around
1900
• Shipwreck released
barrels of Oriental
Porcelain packed in
Carex kobomugi?
• Introduced with ballast?
Spread of Carex kobomugi
• Deliberate Planting
– Dune stability
– Trampling resistance
– Disease and fungal
resistance
– Traffic deterrent
• Natural Propagation
Range of Carex kobomugi in
North America
Carex invasion of New Jersey’s
Coastal Dunes
Dune With Carex
Spraying of IBSP Beds
• Targeted application of
Roundup®
• Narrow nozzle
• Intentions:
– Remove Carex
– Spare remaining plants
Spraying of IBSP Beds
Research Questions
• State your research
questions here!
Study Site
IBSP
Methods
•Mapping of bed area
•GPS polygons
•Diversity Sampling
•Systematic sampling
design
•Count numbers and types
of species in 1m2 plots
•1-5% of stand area
Results for Carex kobomugi
Bed A-23
Inside
40
Carex average growth
Carex average growth
Bed A-14
30
20
10
0
2002
2003
2004
40
30
20
10
0
2002
150
100
50
0
2002
2003
2004
Carex average growth
Carex average growth
Inside
2003
2004
Bed Maintaince 2
Bed Maintaince 1
200
Inside
50
30
Inside
25
20
15
10
5
0
2003
2004
Results for American Beach Grass
Bed A-23
Inside
Outside
40
30
20
10
0
2002
2003
2004
Ammophila average growth
Ammophila average growth
Bed A-14
40
30
20
10
0
2002
30
20
10
0
2002
2003
2004
Ammophila average growth
Ammophila average growth
Outside
Inside
2003
2004
Bed Maintaince 2
Bed Maintaince 1
40
Outside
Inside
50
Outside
Inside
60
50
40
30
20
10
0
2003
2004
Results for Golden Rod
Bed A-23
Inside
Outside
6
5
4
3
2
1
0
2002
2003
2004
Golden Rod average growth
Golden Rod average growth
Bed A-14
10
8
6
4
2
0
2002
15
10
5
0
2002
2003
2004
Golden Rod average growth
Golden Rod average growth
20
2003
2004
Bed Maintaince 2
Bed Maintaince 1
Inside
Outside
Inside
Outside
12
Inside
Outside
30
25
20
15
10
5
0
2003
2004
3.0
Outside
Inside
2.5
2.0
1.5
1.0
0.5
0.0
2002
2003
2004
Bed Maintaince 1
8
Inside
Outside
6
4
2
0
2002
2003
2004
Seaside Spurge average growth
Bed A-14
Seaside Spurge average growth
Seaside Spurge average growth
Seaside Spurge average growth
Results for Seaside Spurge
Bed A-23
Inside
Outside
1.0
0.8
0.6
0.4
0.2
0.0
2002
2003
2004
Bed Maintaince 2
Inside
Outside
2.0
1.5
1.0
0.5
0.0
2003
2004
Results for Sea Rocket
3.0
Inside
Outside
2.5
2.0
1.5
1.0
0.5
0.0
2002
2003
2004
Bed A-23
Sea Rocket average growth
Sea Rocket average growth
Bed A-14
0.8
0.6
0.4
0.2
0.0
2002
Outside
Inside
6
4
2
0
2002
2003
2004
2003
2004
Bed Maintaince 2
Sea Rocket average growth
Sea Rocket average growth
Bed Maintaince 1
8
Inside
Outside
1.0
Inside
Outside
20
15
10
5
0
2003
2004
Conclusions
• Summarize your findings here in words
• Effect on Carex immediately after spraying?
• Effect on Carex in following years?
• Effect on native species immediately after
spraying?
• Effect on native species in following years
• This may take more than one slide
• Use point form. No whole sentences.
Conclusions
• Spray program currently
suspended due to cut
backs at NJ EPA
• Implications for future
management if spray
program is not restarted?
Acknowledgements
Jim Burkitt
Katy Bevaart
Kathleen Brown
Audrey McGough
Sharon Myatt
Jason Ondreicka
Purvi Patel
Sheetal Patel
Courtney Rella
Anna Shipman
Crystal Van Wagner
I thought I saw the end!!!! I did I did!!!!
Thanks 4 Listening!!! Questions???