A new report forecasts a big jump in California navel production and confirms earlier projections about fall potato acreage.

California navel volumes for 2009-2010 are expected to reach 40 million boxes, 16% more than in 2008-2009, according to a Sept. 11 Crop Production report  from the U.S. Department of Agriculture’s National Agricultural Statistics Service.

The report also forecasts a fall potato crop of 1,061,000 acres, virtually unchanged from last year’s total of 1,059,000 acres. That confirms earlier predictions that acreage would be about the same as in 2008.

States in which more potatoes were planted include Idaho and Michigan. Fewer potatoes were planted in Washington, North Dakota, Colorado, and Minnesota. Acreage was similar in Wisconsin and Maine.

The report also includes production data on papayas, hazelnuts and walnuts.