Dalapon is a selective herbicide used to control perennial grasses. The major use of dalapon is on food crops including sugarcane and sugar beets. Its use is no longer authorized in France. The National Institute for Occupational Safety and Health in the
Lolitrem B is one of many toxins produced by a fungus called Epichloë festucae (var. lolii), which grows in perennial ryegrass. The fungus is symbiotic with the ryegrass; it doesn't harm the plant, and the toxins it produces kill insects that feed on ryeg