Do potato psyllids migrate from one location to the next, starting in northern Mexico and moving northward as the potato season progresses, or are psyllid populations local? Knowing whether the insects are migratory or local could help more efficiently manage the insects which are increasingly inflicting damage on the country's potato industry, according to scientists working on the project. A study that is being done as a part of the national Zebra Chip Specialty Crop Research Initiative involves Dr. Arash Rashed, Texas AgriLife Research vector ecologist, and Dr. Charlie Rush, AgriLife Research plant pathologist in Amarillo and lead on the national initiative.