The Pierce’s Disease/Glassywinged-Sharpshooter Board of Directors in mid-August voted to fund a research project on potential shifts in the disease’s epidemiology.
According to the board, the research project was proposed due to the apparent resurgence of Pierce's disease on California’s North Coast with distribution patterns previously unseen. The board believes it is important to look for any new conditions or vectors which could contribute to the recent outbreak.
The California raisin-type grape forecast for 2015 is 2.00 million tons, up 13 percent from last year’s final production, according to the results of an objective measurement (O.M.) survey conducted in July by the National Agricultural Statistics Service (NASS).
Bunches per vine totaled 43.4, NASS says, up 19 percent from the previous year’s bunch count of 36.5.
Survey results estimate bearing acreage at 185,000 which pegs the yield at about 10.8 tons per acre.