A $1.5 million emergency grant is enabling UC Riverside scientists to find plants impervious to a disease threatening America’s citrus fruit supply. Citrus Greening Disease results in fruit that is bitter and worthless. It has crippled Florida’s citrus industry and has already been detected in California, which grows 80% of America’s fresh citrus. An estimated 267,000 acres of Golden State oranges, lemons, grapefruits, and mandarins are at stake.