Using these structures as oil absorbers might potentially solve two problems at the same time — the removal of unwanted plants and the production of natural and selective oil sorbent material at low - cost. (sciencedaily.com)
A common concern in post-fire logging is that logging equipment may serve as a source or transport for unwanted plant species. (sciencedaily.com)
Grass carp are among four species imported from Asia decades ago to control algae and unwanted plants in controlled settings such as sewage treatment lagoons. (treehugger.com)