Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Invaders From    the Plant World Jessica Sprajcar Department of Conservation and  Natural Resources Office of Conservation...
DCNR – who we are Our Mission :   To manage state parks and forests; to provide information on PA's ecological resources; ...
What is an invasive species? <ul><li>The federal government defines an invasive species as: </li></ul><ul><ul><li>Non-nati...
What makes them invasive? <ul><li>Opportunistic, </li></ul><ul><li>Fast growing, </li></ul><ul><li>Reproduce abundantly, <...
How do invasives spread? <ul><li>Seeds stick to clothing, fur, vehicles </li></ul><ul><li>Animals eat seed </li></ul><ul><...
Why are invasives bad? <ul><li>Lower species diversity   </li></ul><ul><li>Disrupt recreational activities </li></ul><ul><...
Invasives in the Landscaping Trade and their AlterNATIVES James Miller - USDA Forest & Kim Starr - USGS Pat Pingel - DCNR ...
Burning bush  ( Euonymus alata ) INVASIVE! James Miller - USDA PA Bureau of Forestry
Native shrub alternatives Virginia sweetspire   ( Itea virginica ) Highbush blueberry   ( Vaccinium corymbosum ) Charles B...
Japanese barberry  ( Berberis Thunbergii ) INVASIVE! Jessica Sprajcar-DCNR Hickory Run State Park
Native shrub alternatives Spicebush   ( Lindera benzoin ) Inkberry  ( Ilex glabra ) Chris Evans – bugwood.org Jessica Spra...
Butterfly bush  ( Buddleja davidii ) INVASIVE! Forest & Kim Starr - USGS Jessica Sprajcar-DCNR
Native plants for butterflies Butterfly milkweed   ( Asclepias tuberosa ) Sweet pepperbush   ( Clethra alnofolia ) Bee bal...
Norway Maple  ( Acer platanoides ) INVASIVE! Paul Wray-Iowa State U Jessica Sprajcar-DCNR
Native Tree Alternatives Sugar Maple   ( Acer saccharum  ) Red Maple   ( Acer rubrum ) Paul Wray-Iowa State U Amy Ferriter...
Other landscaping invaders <ul><li>Trees: </li></ul><ul><li>Princess/Empress tree   </li></ul><ul><li>Mimosa </li></ul><u...
More landscaping invaders <ul><li>Vines: </li></ul><ul><li>Wisteria </li></ul><ul><li>English ivy   </li></ul><ul><li>Ori...
Preventing invasives <ul><li>Use native plants for landscaping </li></ul><ul><li>Reduce use of fertilizers </li></ul><ul><...
www.iconservepa.org/nativeplants/nativeplantssearch.aspx
Factsheets www.dcnr.state.pa.us/forestry/invasivefactsheets/index.aspx
Controlling invasives H. Hinz and E. Gerber  Jessica Sprajcar - DCNR Jessica Sprajcar - DCNR Jessica Sprajcar - DCNR
Online Tutorial www.dcnr.state.pa.us/forestry/invasivetutorial/index.htm
Restoration Considerations <ul><li>Before removing an invasive, decide what to replace it with </li></ul><ul><li>Know whic...
Get Involved <ul><li>Summer 2009, surveyed for purple loosestrife ( Lythrum salicaria ) and  Galerucella  beetles </li></u...
Remember:   Preventing  an Invasive Species from establishing in the first place is preferable to  controlling  it once th...
Questions? <ul><li>Jessica Sprajcar </li></ul><ul><li>DCNR Office of Conservation Science </li></ul><ul><li>[email_address...
Upcoming SlideShare
Loading in …5
×

PA Invasive Plants and AlterNATIVES

3,123 views

Published on

Learn about some common invasives plants in the PA landscape and some better NATIVE alternatives.

  • Be the first to comment

  • Be the first to like this

PA Invasive Plants and AlterNATIVES

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

×