WASHINGTON — In its initial report for the new season, the U.S. Department of Agriculture on Nov. 8 forecast 2013-14 U.S. orange production at 7,960,000 tons (183 million boxes), down 5% from 8,349,000 tons in 2012-13.

The U.S.D.A. forecast Florida orange production at 5,625,000 tons (125 million 90-lb boxes), down 6% from 6,013,000 tons in 2012-13. The Florida crop was reduced by early-season dry conditions and ongoing citrus greening, a disease that causes fruit to fall from trees prematurely and reduces fruit size. If realized, the Florida crop would be the smallest since the freeze-reduced crop of 1989-90.

New York frozen concentrated orange juice futures jumped about 6% following the U.S.D.A. report.

Florida’s frozen concentrated orange juice yield was forecast at 1.60 gallons per box at 42.0 degrees Brix, up 1% from last season’s final yield of 1.59 gallons, the U.S.D.A. said.

The California orange crop was forecast at 2,260,000 tons (56.5 million 80-lb boxes), the same size as a year earlier. The Texas crop was forecast at 75,000 tons (2 million 85-lb boxes), down 1,000 tons from 2012-13.