Researchers who are monitoring Idaho potato fields for potato psyllids trapped four adults on a sticky card in a field in Twin Falls County last week.
This is the same site where they'd picked up two adults the week before, according to a University of Idaho pest alert.
In addition, they trapped four adults on a card near an insecticide trial at the Kimberly Research and Education Center.
The insects were sent to Moscow, Idaho, to be tested for Liberibacter, the bacterium that causes zebra chip.
The researchers have not trapped psyllids at any other locations nor have they found any immatures.
Although the psyllid numbers remain low, they recommend scouting programs be insensified.