The U.S. Department of Agriculture released its first Florida citrus forecast of the season, with oranges showing a 3 percent increase from last year's ending forecast.

Broken down, non-valencia production is expected to decrease 2 percent whereas valencia orange harvest is expected to increase 9 percent, according to a news release.

Overall, the state's orange growers are expected to harvest 108 million 90-pound boxes this season.

That compares with the 2013-14 ending harvest of 104.6 million boxes.

"This is a positive number as the Florida citrus grower continues to battle citrus greening disease," Mike Sparks, executive vice president and chief executive officer of Lakeland-based Florida Citrus Mutual, said in a separate release. "It's been a tight few years for production and 2014-2015 is no different."

The 2013-14 season started with a much higher estimate of 125 million boxes, but fruit drop—presumably caused by citrus greening—took its toll.

During the 2012-13 season, Florida growers harvested 133.6 million boxes of oranges.

Florida grapefruit production is expected to decrease 4 percent this season, with the state's growers picking 15 million 85-pound boxes.

Tangerine production also is expected to decrease, with growers harvesting 2.8 million 90-pound boxes compared with 2.9 million boxes last season.

The next USDA citrus forecast will be Nov. 10.