Invasive plants affect all types of environments in the United States. Overgrazing, land use changes, added fertilization, and use of agricultural chemicals are just some things that enhance the growth of invasive plants. Other human activities result in unstable or disturbed environments and encourage the establishment of invasive plants. Some of these include farming, highway and utility rights-of-way, clearing land for homes and recreation areas such as golf courses, and constructing ponds, reservoirs, and lakes. This section of the fact book covers impacts, status, and trends of plant invasions in croplands, yards and gardens, rights-of-way, rangelands and pastures, forests, deserts, islands, and natural areas. It also provides information on invasive plant impacts on native wildlife and plant communities, recreation, and human and animal health.

(Excerpt: Invasive Plants Fact Book)