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
Water hyacinth has been the scourge of the Delta in recent years, but by this summer it could be providing the power to city lights. A pilot project is in the works to harvest it for biogas. Port of Stockton Environmental Manager Jeff Wingfield says the port is proposing a pilot project to harvest the