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.

Brazilian Elodea

646 views

Published on

Published in: Business, Technology
  • Be the first to comment

  • Be the first to like this

Brazilian Elodea

  1. 1. Brazilian Elodea Egeria densa Darren R. ThornhillFisheries Management Biologist MO Dept. of Conservation 3500 S Baltimore St. Kirksville, MO 63501
  2. 2. What does it look like?• Submerged, perennial plant• Stems (up to 2 m) branch at water level• Whorls of 4-8 spear-shaped leaves (1.2-3.8 cm)• Three white flowers (18-25 mm) at or just above water surface
  3. 3. Ecology• All known plants in the US are male – Spreads through fragmentation• Found in still and moving water• Found in depths ranging up to 7 meters – Also found in free-floating mats• Develops dense, monotypic stands
  4. 4. How did it get here?• Native of Brazil and coastal Argentina and Uruguay• First collected in Long Island, NY in 1893 – First sold in US in 1915 as good “oxegenator”• Commonly cultivated and sold for the aquarium trade – Anacharis
  5. 5. How do we get rid of it?• Prevention is paramount!• Biological control with grass carp• Mechanical control is not recommended• Chemical control is effective – Complexed copper and diquat (effective) – Complezed copper and Endothall (marginally effective) – Fluridone (effective)

×