Vine Mealybug Maps
Beginning in 2012, The Ag Commissioner's Office conducted an enhanced vine mealybug trapping program of 25 traps per square mile, well above the previous regimen of seven traps per square mile. By analyzing the number of males found in each of the traps, staff is able to detect new areas of infestation as well as track reductions in population.
Maps of 2014 Vine Mealybug finds in Napa County now available:
Maps of 2013 Vine Mealybug finds in Napa County now available:
Please note: Trapping was not conducted in Carneros in 2013 because the area is considered to be widely infested as evidenced by the 2012 trap data.
Maps of 2012 Vine Mealybug finds in Napa County: