A message from Jen Olson, the diagnostician at the OSU Plant Disease and Insect Diagnostic Lab (PDIDL):

“Just a PD update.  We have confirmed PD in a vineyard in Oklahoma county which is a new county.  I am going there later this week to have a look at the plants and determine the extent of spread.  I am not sure if it is a commercial grower or a large scale hobbyist.”

Since Oklahoma county has now been ID’ed as PD positive there will no longer be free tissue testing for PD from that county.