pa invasive plants and alternatives
DESCRIPTION
Learn about some common invasives plants in the PA landscape and some better NATIVE alternatives.TRANSCRIPT
- 1. Invaders Fromthe Plant World Jessica Sprajcar Department of Conservation andNatural Resources Office of Conservation Science
2. DCNR who we are Our Mission : To manage state parks and forests; to provide information on PA's ecological resources; and to administer grant programs for recreation and natural resource protection. 3. What is an invasive species?
- The federal government defines an invasive species as:
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- Non-native
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- Causes or is likely to cause harm to the economy, environment, or human health.
4. What makes them invasive?
- Opportunistic,
- Fast growing,
- Reproduce abundantly,
- Tolerate wide range of conditions,
- Seeds can remain viable in the soil for years.
Mile-a-minute( Polygonum perfoliatum ) Jessica Sprajcar-DCNR 5. How do invasives spread?
- Seeds stick to clothing, fur, vehicles
- Animals eat seed
- Accidental ordeliberate release
- Moved by waterand wind
Japanese knotweed ( Fallopia japonica )Josh VanBrakle 6. Why are invasives bad?
- Lower species diversity
- Disrupt recreational activities
- Change soil chemistry
- Cost billions of dollarsto control
Garlic mustard ( Alliaria petiolata ) Jessica Sprajcar-DCNR 7. Invasives in the Landscaping Trade and their AlterNATIVES James Miller - USDA Forest & Kim Starr - USGS Pat Pingel - DCNR Jessica Sprajcar-DCNR Jessica Sprajcar-DCNR 8. Burning bush( Euonymus alata ) INVASIVE! James Miller - USDA PA Bureau of Forestry 9. Native shrub alternatives Virginia sweetspire ( Itea virginica ) Highbush blueberry ( Vaccinium corymbosum ) Charles Bryson-USDA Chris Evans - UGA 10. Japanese barberry( Berberis Thunbergii ) INVASIVE! Jessica Sprajcar-DCNR Hickory Run State Park 11. Native shrub alternatives Spicebush ( Lindera benzoin ) Inkberry( Ilex glabra ) Chris Evans bugwood.org Jessica Sprajcar-DCNR 12. Butterfly bush( Buddleja davidii ) INVASIVE! Forest & Kim Starr - USGS Jessica Sprajcar-DCNR 13. Native plants for butterflies Butterfly milkweed ( Asclepias tuberosa ) Sweet pepperbush ( Clethra alnofolia ) Bee balm ( Monarda didyma ) Chris Evans - UGA Chris Evans-UGA 14. Norway Maple( Acer platanoides ) INVASIVE! Paul Wray-Iowa State U Jessica Sprajcar-DCNR 15. Native Tree Alternatives Sugar Maple ( Acer saccharum) Red Maple ( Acer rubrum ) Paul Wray-Iowa State U Amy Ferriter-www.forestryimages.org 16. Other landscaping invaders
- Trees:
- Princess/Empress tree
- Mimosa
- Callery/Bradford pear
- Shrubs:
- Shrub honeysuckles
- Autumn and Russian olive
- Privets
James Miller - USDA Jessica Sprajcar-DCNR 17. More landscaping invaders
- Vines:
- Wisteria
- English ivy
- Oriental bittersweet
- Periwinkle
- Herbaceous Plants:
- Purple loosestrife
- Bamboo
- Chinese silver grass
Pat Pingel-DCNR Jessica Sprajcar-DCNR 18. Preventing invasives
- Use native plants for landscaping
- Reduce use of fertilizers
- Brush off shoes
- Minimize disturbances
19. www.iconservepa.org/nativeplants/nativeplantssearch.aspx 20. Factsheets www.dcnr.state.pa.us/forestry/invasivefactsheets/index.aspx 21. Controlling invasives H. Hinz and E. GerberJessica Sprajcar - DCNR Jessica Sprajcar - DCNR Jessica Sprajcar - DCNR 22. Online Tutorial www.dcnr.state.pa.us/forestry/invasivetutorial/index.htm 23. Restoration Considerations
- Before removing an invasive, decide what to replace it with
- Know which native plants belong in an area & know the site
- Design the restoration (timing,implementation, evaluation)
- Evaluate and adapt
24. Get Involved
- Summer 2009, surveyed for purple loosestrife ( Lythrum salicaria ) andGalerucellabeetles
- Summer 2010, will move beetles to Susquehanna River islands
Eric Coombs OR Dept. Ag. www.bugwood.org 25. Remember: Preventingan Invasive Species from establishing in the first place is preferable tocontrollingit once there is a population in an area. Control is expensive, time consuming, and not necessarily guaranteed to work! Pittsburgh Parks Conservancy 26. Questions?
- Jessica Sprajcar
- DCNR Office of Conservation Science
- [email_address]
- 717-214-7511