1 / 25

Oriental Bittersweet Celastrus orbiculatus

Oriental Bittersweet Celastrus orbiculatus. Oriental bittersweet. Woody vine that climbs other vegetation such trees and structures Thrives in a wide range of habitats, light levels, and soil types Grows to 66’ in length Introduced as an ornamental. Biology.

lenci
Download Presentation

Oriental Bittersweet Celastrus orbiculatus

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Oriental Bittersweet Celastrus orbiculatus

  2. Oriental bittersweet • Woody vine that climbs other vegetation such trees and structures • Thrives in a wide range of habitats, light levels, and soil types • Grows to 66’ in length • Introduced as an ornamental

  3. Biology • Reproduces by seed, rhizome, and stolon • Male and female plants • Fruit production on female plants • Short-term seed viability

  4. Seed dispersal is vectored by birds and other wildlife that eat the fruit containing seed. Wildlifevectored dispersal Urtica/Flickr creative commons http://gremlinthecat.blogspot.com/2010_12_01_archive.html

  5. Human vectored dispersal Urtica/Flickr creative commons

  6. Highly invasive and damaging • Trees strangled, smothered and broken by vines • Reduced light available for plant growth

  7. American bittersweet Celastrus scandens • Native related species • Occur in same habitat • Oriental bittersweet outcompetes American bittersweet • Hybrids? • Cultivars

  8. Distinguishing bittersweets Fruit capsule color American Oriental

  9. Variable leaf shape = not reliable

  10. Other woody vines

  11. Which is Oriental bittersweet? • Plant 1 • Plant 2 1 2

  12. Control methods • Foliar application • Low growing plants, seedlings and re-sprouting cut stumps • Cut stump and basal bark treatments • Large vines

  13. Oriental bittersweet distribution EDDMapS. 2014. Early Detection & Distribution Mapping System. The University of Georgia - Center for Invasive Species and Ecosystem Health. Available online at http://www.eddmaps.org/; last accessed February 12, 2014.

  14. Report infestations • Location information • GPS coordinates preferred when access is permissible • Note location for infestations on private property without permission to access • Digital photographs of the vine and fruit or flowers will aid identification • Call “Arrest the Pest” 888-545-6684

  15. Legal status in Minnesota • Prohibited Noxious Weed on Eradicate List • All plant parts must be destroyed • No propagation or sale is allowed • Cultivars • ProhibitedOriental bittersweet cultivars • Diana, Hercules, Indian Mix, Indian Brave, Indian Maiden • Approved American bittersweet cultivars • Autumn Revolution and Sweet Tangerine ‘Swtazam’

  16. Infestations in Minnesota • Goal is to prevent new infestations and contain and control existing infestations. • Small, manageable infestations should be controlled by landowners • MnDOT and DNR have destroyed multiple small infestations and are monitoring seedbanks. • Coordinated initial control of large Oriental bittersweet infestations across land ownship boundaries was recommended for funding by the Legislative Citizens Commission on Minnesota Resources

  17. Questions? http://www.mda.state.mn.us/en/plants/badplants/orientalbittersweet.aspx

More Related