California produces 80 percent of the nation’s fresh citrus, but a disease called Huanglongbing or HLB, is threatening Central Valley groves. Citrus Greening disease, transmitted by the Asian citrus psyllid, has decimated groves in Asia, Brazil, the Dominican Republic and Florida, and is now spreading in California. UC Davis researchers are working to slow down the disease, as well as searching for solutions to protect citrus from the disease. Series: "UCTV Prime" [Agriculture] [Show ID: 36755]