Invasive Species Weblog logo

Author: Jennifer Forman Orth

Invading your brain since 2002.

About | Links | Suggest a Post

Don't see what you're looking for?

2011 Calendars are here!
2011 Calendars are here!

Get the ISW Feed!    Atom enabled

Subscribe in Bloglines   Add to Google Reader or Homepage

Nature Blog Network

Saturday, June 01, 2002

Difficult Decisions

What can be done when an invasive plant is taking over a lake? Removing it is often not an option; many aquatic invasives spread vegetatively, which means that if you break up stems you aren't killing the plant, you're just increasing the potential for the species to restablish in a new area or cling to a boat and find refuge in a nearby body of water. There are rarely any options for eradication that won't cause serious disturbance to the rest of the lake's flora and fauna. Often a decision is made to wipe out almost everything in the lake and "start from scratch".

South Australia is taking the herbicide route, using a combination of chlorine and copper sulfate to rid the West Lakes of Caulerpa taxifolia, according to this story from Some parties are concerned about the major impact this could have on all lake life, but after reading how aggressive Caulerpa can be, I don't blame them for making this decision. You can read more about aquatic plant management here.


Post a Comment

This page is Powered By Blogger. Isn't yours?