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Contact

College of Agricultural & Life Sciences

Physical Address:
E. J. Iddings Agricultural Science Laboratory
606 S Rayburn St

Mailing Address:
875 Perimeter Drive MS 2331
Moscow, ID 83844-2331

Phone: 208-885-6681

Fax: 208-885-6654

Email: ag@uidaho.edu

Web: uidaho.edu/cals/potatoes

Location

Mailing Address:
1693 S 2700 W
Aberdeen, ID 83210

Phone: 208-397-4181

Fax: 208-397-4311

Web: uidaho.edu/cals/aberdeen

Location

Mailing Address:
3793 North 3600 East
Kimberly ID 83341-5076

Phone: 208-423-4691

Fax: 208-423-6699

Web: uidaho.edu/cals/kimberly

Location

Mailing Address:
29603 U of I Lane
Parma, ID 83660-6699

Phone: 208-722-6701

Fax: 208-722-6708

Web: uidaho.edu/cals/parma

Location

News, updates & conferences

Pest Alerts — Psyllid Update

July 15, 2021

This week we had traps deployed in all 76 fields monitored this year (though we are waiting to receive traps from 11 sites). We found a total of 108 psyllids across 24 (33%) of the 73 fields for which we have data.

Psyllids were collected on sticky traps in potato in the following counties: Canyon (12 fields), Owyhee (two fields), Elmore (two fields), Gooding (one field), Jerome (two fields), Twin Falls (five fields) and Bingham (one field).

All of the psyllids tested from previous weeks have been negative for Lso, though we are waiting for results from two individual psyllids from two fields from last week (the other psyllids tested from those fields were negative).

Psyllid captures overall are similar to last week, though slightly lower captures were recorded in some of the Treasure Valley fields that had the most captures last week. We urge growers to watch psyllid numbers closely during the coming weeks and to have their IPM programs in place.

Contour maps or “heat maps” of this week’s and the previous week’s results are included on the U of I website (see link below). These maps describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed in collaboration with colleagues at Washington State University from our many years of data on psyllids in Idaho. The maps graphically reflect the relatively high abundance of psyllids collected in some fields in the western Treasure Valley during the past two weeks, as well as a “hot spot” in Elmore County. Abundance of psyllids remains moderate to low in the Magic Valley and very few psyllids have been detected in the Upper Snake region.

We include just a screenshot of the contour maps on our site, so we encourage stakeholders to visit the Decision Aid Systems site and create a free account to view these and other data in more detail: https://potatoes.decisionaid.systems/.

Psyllids risk level map
Risk level contour map of Psyllids

Updated weekly report 

July 15, 2021

This week we had traps deployed in all 76 fields monitored this year (though we are waiting to receive traps from 11 sites). We found a total of 108 psyllids across 24 (33%) of the 73 fields for which we have data.

Psyllids were collected on sticky traps in potato in the following counties: Canyon (12 fields), Owyhee (two fields), Elmore (two fields), Gooding (one field), Jerome (two fields), Twin Falls (five fields) and Bingham (one field).

All of the psyllids tested from previous weeks have been negative for Lso, though we are waiting for results from two individual psyllids from two fields from last week (the other psyllids tested from those fields were negative).

Psyllid captures overall are similar to last week, though slightly lower captures were recorded in some of the Treasure Valley fields that had the most captures last week. We urge growers to watch psyllid numbers closely during the coming weeks and to have their IPM programs in place.

Contour maps or “heat maps” of this week’s and the previous week’s results are included on the U of I website (see link below). These maps describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed in collaboration with colleagues at Washington State University from our many years of data on psyllids in Idaho. The maps graphically reflect the relatively high abundance of psyllids collected in some fields in the western Treasure Valley during the past two weeks, as well as a “hot spot” in Elmore County. Abundance of psyllids remains moderate to low in the Magic Valley and very few psyllids have been detected in the Upper Snake region.

We include just a screenshot of the contour maps on our site, so we encourage stakeholders to visit the Decision Aid Systems site and create a free account to view these and other data in more detail: https://potatoes.decisionaid.systems/.


July 8, 2021

This week we had traps deployed in 73 of the 76 fields (96%) monitored this year and we found a total of 139 psyllids across 30 (41%) of the 73 fields. We are waiting to receive cards from nine more sites.

Psyllids were collected on sticky traps in potato in the following counties: Payette (one field), Canyon (12 fields), Gem (one field), Owyhee (three fields), Elmore (two fields), Gooding (one field), Jerome (two fields), Twin Falls (five fields), Minidoka (two fields) and Power (one field).

Lso results are still pending due to shipping delays, but results will be posted here once results are in.

Thus far, psyllid captures are tending to be a bit higher than they were at this time the last two years. We urge growers to watch psyllid numbers closely during the coming weeks and to have their IPM programs in place.


Ag Talk Tuesday

May-August | First & third Tuesday | 11 a.m. to 1 p.m. Mountain Time

view schedule and register today

Pacific Northwest Pest Alert Network

Receive updates on current pest infestations on specific crops.

Learn more

Seed Potato Germplasm Program

We maintain and distribute disease free germplasm and mini-tubers for domestic and international seed potato growers and researchers.

View Site

Idaho Potato Conference

Jan. 18-20, 2022 (Mountain Time)

View 2020 Presentations

Combating Nematodes

CALS researcher leads national project.

Read more

Idaho AgBiz Publications

Learn more about the cost of potato production.

learn more

Publications

Visit the College of Agricultural and Life Sciences and University of Idaho Extension publishing catalog for potato related publications.

Contact

College of Agricultural & Life Sciences

Physical Address:
E. J. Iddings Agricultural Science Laboratory
606 S Rayburn St

Mailing Address:
875 Perimeter Drive MS 2331
Moscow, ID 83844-2331

Phone: 208-885-6681

Fax: 208-885-6654

Email: ag@uidaho.edu

Web: uidaho.edu/cals/potatoes

Location

Mailing Address:
1693 S 2700 W
Aberdeen, ID 83210

Phone: 208-397-4181

Fax: 208-397-4311

Web: uidaho.edu/cals/aberdeen

Location

Mailing Address:
3793 North 3600 East
Kimberly ID 83341-5076

Phone: 208-423-4691

Fax: 208-423-6699

Web: uidaho.edu/cals/kimberly

Location

Mailing Address:
29603 U of I Lane
Parma, ID 83660-6699

Phone: 208-722-6701

Fax: 208-722-6708

Web: uidaho.edu/cals/parma

Location