In 2001, scientists released 880 tiny weevils against a weed choking Texas waterways; by 2003, giant salvinia had almost disappeared | World News
A thick green carpet can make a pond or reservoir appear almost solid, but giant salvinia is a floating fern, spreading across the water rather than growing from the bottom. In Texas and Louisiana, the plant had become difficult to manage, forming dense mats that blocked sunlight, reduced oxygen and interfered with waterways. According to…
