The University of Idaho and our crop consultant collaborators across the state are once again monitoring for potato psyllids, zebra chip disease (ZC), and liberibacter (Lso), the bacterium associated with ZC. The monitoring program covers commercial potato fields throughout southern Idaho and is funded in part by the Idaho Potato Commission and generous in-kind contributions…
The primary purpose of our aphid monitoring efforts in southeast Idaho is to inform seed potato growers when aphid flights are occurring. Seed potato growers are interested in this information because many aphid species can vector Potato virus Y (PVY), an economically impactful virus for the seed potato grower since seed potatoes becomes ineligible for…
Although spores were detected, no diseased plants were reported for Idaho in 2022 or 2023. There were no spore detections for 2020 or 2021.
This is the final report of the 2023 potato psyllid / Lso monitoring season. All of the psyllids tested last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). About 6% of all psyllids tested positive for Lso this year compared to around 1% in most recent years (and 22% last…
We officially ended the monitoring season last week, but we received a bonus week of sticky traps from two fields in Canyon County this week. We captured a total of 12 psyllids across these 2 fields. None of the six psyllids captured last week was positive for Lso, the bacterium associated with zebra chip disease…
This week we received traps from 20 of the 55 fields that we are monitoring. Thirty-three fields have been vine killed or are senescing and are no longer being monitored. We captured a total of 6 psyllids across 3 fields. The three fields were in Canyon, Elmore, and Twin Falls counties. This is our last…
This week we received traps from 31 of the 55 fields that we are monitoring. Twenty-two fields have been vine killed or are senescing and are no longer being monitored. We captured a total of 15 psyllids across 7 fields. Five of the fields were in Canyon County, and the other two fields were in…
This week we received traps from 35 of the 55 fields that we are monitoring. One field was vine killed and we are still waiting on traps from 19 sites. Many of these fields could not be entered earlier in the week so traps were shipped to us late. We captured a total of 30…
This week we received traps from 49 of the 55 fields that we are monitoring. We captured a total of 44 psyllids across 14 fields. Ten of the fields were in Canyon County; the remaining 4 fields were in Payette, Elmore, and Twin Falls counties. Total psyllid captures ticked up slightly, at least in the…
This week we received traps from 50 of the 55 fields that we are monitoring. We captured a total of 30 psyllids across 12 fields. Seven of the fields were in Canyon County, the remaining 5 fields were in Payette, Owyhee, Elmore, and Twin Falls counties. Total psyllid captures were similar to last week, and…
