For most of Texas, Pierce's disease (PD) is the greatest limiting factor in cultivating Vitis vinifera and most hybrid wine grapes. Widespread death of wine grapes has been a common occurrence in Texas since the first introduction of Old-World varieties brought by European settlers over 400 years ago. Although the scientific knowledge of Pierce's disease has grown significantly in recent years, little was known about the variety of vectors or how the bacterial pathogen (Xylella fastidiosa) colon...