The California raisin-type variety grape forecast is 2.40 million tons, up 25.5 percent from the 2012 final production.
The collection of objective measurement data on the California grape crop began in 1956. Grape bunches were counted, measured, and weighed in sample vineyards of raisin, table, and wine type varieties. The Raisin Administrative Committee funded the O.M. survey of raisin-type variety grapes from 1985 to 2001, 2005, and from 2007 to this year.
The California raisin-type variety grape forecast is 2.40 million tons, up 25.5 percent from the 2012 final production. Based on the objective measurement survey, bunches per vine totaled a record 47.7 compared to 29.1 in 2012. Acreage of bearing age is 200,000, which means a record high yield is expected. The 2013 California raisin-type grape crop is shaping up to be the largest crop since 2008. Weather conditions have been good for crop development, which is a few days ahead of normal. Mildew pressure was low, but mites were significant. The forecast is based on the results of the Raisin Grape Objective Measurement (O.M.) Survey conducted in July.
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