In the first part of this study we monitored the development of biological control
of purple loosestrife Lythrum salicaria over a six-year period at Morgan Lake in western
Oregon. In 1992, two beetles, Galerucella pusi ...
Invasive plants have the potential to reduce the diversity of species in plant and animal
communities. I examined the negative effect of two invasive wetland plants, purple loosestrife and reed
canary grass, on the spe ...
