Final answer:
Kudzu was introduced to the U.S. from Japan in 1876 for soil conservation, but it became an invasive pest due to its rapid growth and lack of natural predators.
Step-by-step explanation:
The invasive species Kudzu (Pueraria lobata) was introduced into the United States from Japan. The plant was brought over in 1876 and was later planted widely for soil conservation purposes. However, with its aggressive growth rate of up to a foot a day and without its natural predators from its native habitat, kudzu became a problematic pest species, spreading over 7 million acres in the southeastern United States and out-competing native vegetation.