Aug 21, 2022
Traps received from 72 Idaho fields monitoring psyllids and Lso

Last week, the university received traps from 68 of the 72 fields that are being monitored this year. There were a total of 35 psyllids across 18 (27%) of the 68 fields observed.

Psyllids were captured in the following counties: Canyon (four fields), Payette (one field), Gooding (one field), Twin Falls (four fields), Cassia (five fields) and Minidoka (three fields).

Thankfully, none of the psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC).

Psyllid captures are increasing as they always seem to do late in the season, though researchers continue to see very low captures of psyllids relative to previous years. However, they have also seen relatively high incidence of Lso during previous weeks. Most captures this week were from the eastern Magic Valley and western Treasure Valley, with no captures recorded this week from eastern Idaho. University of Idaho (U of I) urges growers to watch psyllid captures and Lso incidence closely and to have their IPM programs in place.

In addition to the regular links with details on trap captures over the season, U of I is developing a new Idaho Pest Monitoring site that includes graphical summaries of the psyllid captures for this season and the previous two seasons:

Please click around on the Potato Psyllid/Zebra Chip Monitoring link and send any feedback that may be used to improve the site. The goal is to make this a one-stop shop for all Idaho pest monitoring programs, but this is still a work in progress.

– University of Idaho

75 Applewood Dr. Ste. A
P.O. Box 128
Sparta, MI 49345


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