Restoring the Balance: Biological Control of Purple Loosestrife (#18756)

An introduction to biological weed control, specifically of Purple Loosestrife. Biological weed control reunites an invasive plant with natural enemies from its native range, providing a natural balance between the plant, the insects, and the wetland environment.Discusses why Purple Loosestrife is a problem in wetlands, what other control methods have been insufficient to control it, how biological control of weeds works and what measures were taken to be sure it is safe for the North American environment.  (1996) – VHS VIDEO (28:00), PRINT MATERIALS.