In Stockton, California managers have been trying to keep the water hyacinth that washes in from the Delta under control with herbicide treatments. Unfortunately even after 15 applications, the hyacinth has extended beyond the level of control.
Port officials say a state spraying program failed to control the hyacinth, so they contracted with a Bay Area company to mechanically remove it; removing over 375,000 pounds of the invasive water hyacinth
The infestation has prevented yacht groups from visiting downtown Stockton events and according to Stockton Alliance Director Leandro Vicuna, the problem is hurting local businesses.