40
ERDC/CRREL SR-02-2
When choosing appropriate control methods, you need a picture of the whole
landscape. At one site, for example, elk came in and destroyed other grasses after
knapweed had been controlled. Or, when mowing, some undesired species might
survive below the mower level and live to produce seeds.
Biocontrols may never provide complete eradication, so it is often good to
combine such controls with herbicide application.
The overall goal is not necessarily total eradication, which is probably im-
possible, but to keep the invasiveness under control. To obtain that goal, you
must also be prepared to fill the niche with desirable species that can help keep
the weeds from re-invading.
Previous Page
