Search Results

2016 Idaho Association of Plant Protection

All Crops    All Locations

Posted on: October 24, 2016 by Jeff Miller

The finalized program for the 2016 Idaho Association of Plant Protection meeting is now available. The meeting will be Wednesday and Thursday November 2-3 at the Sawtooth Best Western in Jerome. Lunch will be provided before the meeting on Wednesday. CCA and ISDA credits will be available both days. Cost of attending in $15 regardless of whether you attend both days or only one.

» IAPP_2016_Program.pdf

ISDA ANNOUNCES WORKER PROTECTION STANDARD TRAINING FOR AG OPERATORS

All Crops    All Locations

Posted on: October 12, 2016 by Jerry Neufeld

ISDA is conducting a series of workshops where you can learn about the upcoming changes to the Worker Protection Standard. Click on the pdf below for more information about the dates and locations.

» ISDA_News_Release_WPS_Seminars_Oct_2016_app.pdf

Glyphosate Tolerant Creeping Bentgrass Identification Workshop

All Crops    Northern Idaho

Posted on: October 3, 2016 by Bill Buhrig

Scotts Co. will be hosting an identification class for Glyphosate Tolerant Creeping Bentgrass (GTCB) at the Malheur County Extension Office on October 10th @ 1:00pm. This will be an opportunity to learn more about GTCB and how to identify it. Check out the flier for the details.

» GTCB_ID_Public_Workshop.pdf

Potato psyllid monitoring winds down

Potato    All Locations

potato psyllids

Posted on: September 23, 2016 by Erik Wenninger

September 23, 2016 – Potato psyllid monitoring winds down

As many fields have been vine killed and/or harvested, the psyllid sampling season is winding down. Sampling continued in only a handful of fields this week and will all but cease next week.

Potato psyllids were collected this week on sticky traps in potato in the following counties: Gooding (1 field), Twin Falls (1 field), Jerome (2 fields), Minidoka (1 field), and Cassia (4 fields).

This week, we collected 44 psyllids from sticky cards (37 from Light sites and 7 from Intense sites). We found psyllids in 8 of the 10 fields (80%) that were sampled this week. Total captures declined in part because sampling has ceased in most fields and likely also because of cooler weather.

We ran Lso testing on a subset of psyllids collected last week (up to ten psyllids per site). So far, none of the psyllids tested last week was positive for Lso. As always, the online spreadsheets (see below) may be updated at any time during the week as more data are gathered.

As fields are harvested, we urge everyone to familiarize themselves with ZC tuber symptoms. See link below for description and photos of ZC symptoms, and please take suspicious samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

ISDA ANNOUNCES FALL SCHEDULE FOR UNUSABLE PESTICIDE DISPOSAL

All Crops    All Locations

Posted on: September 22, 2016 by Jerry Neufeld

Click on the file below for information about the ISDA Unusable Pesticide Disposal Program that will be taking place next week in the Twin Falls, Gooding and Nampa areas.

» ISDA_news_release_PDP_TV_MV_locations_Sept_2016_app.pdf

Psyllid captures continue to decline

Potato    All Locations

potato psyllids

Posted on: September 16, 2016 by Erik Wenninger

Potato psyllids were collected this week on sticky traps in potato in the following counties: Payette (1 field), Owyhee (1 field), Canyon (9 fields), Ada (2 fields), Elmore (1 field), Gooding (2 fields), Twin Falls (8 fields), Jerome (5 fields), Minidoka (2 fields), and Cassia (7 fields). Additionally, from one field in Gooding County, we captured 4 adults in a vacuum sample and 2 nymphs in a leaf sample.

This week, we collected 548 psyllids from sticky cards (254 from Light sites and 294 from Intense sites). Of the total 552 psyllids captured this week, 198 came from the Treasure Valley. We found psyllids in 38 of the 51 fields (75%) that were sampled this week. Total captures are declining in part because sampling has ceased in many fields (due to vine kill or harvest) and likely also because of cooler weather.

We ran Lso testing on a subset of psyllids collected last week (up to ten psyllids per site). So far, none of the psyllids tested last week was positive for Lso. About 50% of samples remain to be tested, and we expect to have those Lso results early next week. As always, the online spreadsheets (see below) may be updated at any time during the week as more data are gathered.

We continue to urge growers to maintain their IPM programs, especially in late-maturing fields, and to be on the lookout for plants exhibiting ZC symptoms. Foliar symptoms need to be confirmed by examining and testing tubers. See link below for description and photos of ZC symptoms, and please take suspicious plant samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

Psyllid numbers tick down slightly

Potato    All Locations

potato psyllids

Posted on: September 9, 2016 by Erik Wenninger

Potato psyllids were collected this week on sticky traps in potato in the following counties: Payette (1 field), Owyhee (5 fields), Canyon (9 fields), Ada (2 fields), Elmore (1 field), Gooding (2 fields), Twin Falls (9 fields), Jerome (7 fields), Blaine (1 field), Minidoka (6 fields), Cassia (5 fields), and Bingham (1 field). Additionally, potato psyllid nymphs (37 total) were captured on leaf samples from Canyon County (2 fields) and Ada County (2 fields), and 30 potato psyllid adults were captured in vacuum samples taken from two Intense fields in Canyon counties.

This week, we collected 1,116 psyllids from sticky cards (824 from Light sites and 292 from Intense sites). Of the total 1,116 psyllids captured this week, 674 came from the Treasure Valley. We found psyllids in 40 of the 49 fields (82%) that were sampled this week. To put these numbers into perspective, we captured a total of approximately 1,100 psyllids for the entire year during each of the 2013 and 2015 seasons.

With the recent increase in psyllid numbers and attrition of our summer help, we ran Lso testing on a subset of psyllids collected last week (up to ten psyllids per site). So far, none of the psyllids tested last week was positive for Lso. About 50% of samples remain to be test, and we expect to have those Lso results early next week. As always, the online spreadsheets (see below) may be updated at any time during the week as more data are gathered.

Because of the recent prevalence of Lso and the relatively high numbers of potato psyllids that we have been collecting each week, we urge growers to maintain their IPM programs targeting psyllids and to be on the lookout for plants exhibiting ZC symptoms over the coming weeks. Foliar symptoms should be manifested about three weeks following infection, but will need to be confirmed by examining and testing tubers. See link below for description and photos of ZC symptoms, and please take suspicious plant samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

Canyon & Owyhee County Conservation District Tour

All Crops    Treasure Valley

Posted on: September 9, 2016 by Bill Buhrig

An opportunity to learn more about no-till planting, cover crops as forage, and free range chickens (wait, chickens?) are but a few of the topics available to interested folks on a tour being offered on September 22nd. This free tour is sponsored by the Canyon and Owyhee Conservation Districts, NRCS and the Lower Boise Watershed Council and will originate from the USDA office in Marsing @ 9:00AM sharp. Local farmers will be showing their work on the aforementioned topics and how they pertain to improving water quality and soil health. It promises to be a good time and they will feed you lunch at the tour conclusion for free! The gang does ask that you RSVP to Lori @ 208-454-8684 x126 by September 19th. Check out the attached flier.

» 2016Tourflyer.pdf

September 2, 2016 – Psyllid numbers continue to rise

Potato    All Locations

potato psyllids

Posted on: September 2, 2016 by Amy Carroll

The two fields in western Idaho that were reported two weeks ago to exhibit high incidence of ZC symptoms were found to be negative for ZC after molecular testing. Stem-end discoloration appears to be prevalent this year, and that might explain the misdiagnosis by field personnel. The symptomatic plants observed by Kimberly R&E Center staff did test positive for ZC, so we do have confirmed ZC at least in the Magic Valley.

Potato psyllids were collected this week on sticky traps in potato in the following counties: Malheur (OR) (1 field), Payette (3 fields), Owyhee (5 fields), Canyon (13 fields), Ada (2 fields), Elmore (1 field), Gooding (2 fields), Twin Falls (8 fields), Jerome (9 fields), Blaine (1 field), Minidoka (3 fields), Cassia (5 fields), and Power (1 field).. Additionally, potato psyllid nymphs (9 total) were captured on leaf samples from Ada County (2 fields) and Jerome County (1 field), and 24 potato psyllid adults were captured in vacuum samples taken from three Intense fields in Canyon and Gooding counties.

This week, we collected 1,539 psyllids from sticky cards (1,138 from Light sites and 401 from Intense sites). Of the total 1,563 psyllids captured this week, 1,382 came from the Treasure Valley. We found psyllids in 54 of the 82 fields (66%) that were sampled this week. To put these numbers into perspective, we captured a total of approximately 1,100 psyllids for the entire year during each of the 2013 and 2015 seasons.

With the recent increase in psyllid numbers and attrition of our summer help, we ran Lso testing on a subset of psyllids collected last week (up to ten psyllids per site). So far, none of the psyllids tested last week was positive for Lso. About 50% of samples remain to be test, and we expect to have those Lso results early next week.

Because of the recent prevalence of Lso and the relatively high numbers of potato psyllids that we have been collecting each week, we urge growers to maintain their IPM programs targeting psyllids and to be on the lookout for plants exhibiting ZC symptoms over the coming weeks. Foliar symptoms should be manifested about three weeks following infection, but will need to be confirmed by examining and testing tubers. See link below for description and photos of ZC symptoms, and please take suspicious plant samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://www.uidaho.edu/extension/news/psyllid-management

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

Harvest and Minimizing Foreign Material in Potatoes: On-line educational videos now available.

Potato    All Locations

Posted on: August 30, 2016 by Nora Olsen

Harvest and Minimizing Foreign Material: On-line educational videos now available.

Foreign material is any material that is not the potato tuber. It is "trash" or "garbage" in potatoes. Many foreign materials originate in the field, but others enter the product stream through equipment and during storage and handling. Whether potatoes are destined for the fresh market or processing, foreign material is a great concern to the Idaho potato industry. By minimizing foreign material in the field, in storage, and in the processing plant, growers and processors help maintain a high-quality product, safe standards, and consumer confidence.

The video “Continuing to Manage Foreign Material for Quality Idaho Potatoes” outlines ways you can reduce unwanted or foreign material in your potatoes. The video (English and Spanish version) are available on-line at:

Spanish edition:
https://vimeo.com/144655993

English edition:
https://vimeo.com/144567198

Additional information “Managing Foreign Material for Quality Idaho Potatoes” is available at http://www.uidaho.edu/cals/potatoes/research/storage/potato-storage-management.

» https://vimeo.com/144567198

» https://vimeo.com/144655993

» http://www.uidaho.edu/cals/potatoes/research/storage/potato-storage-management.

Psyllid numbers remain high

Potato    All Locations

potato psyllids

Posted on: August 26, 2016 by Erik Wenninger

Potato psyllids were collected this week on sticky traps in potato in the following counties: Malheur (OR) (1 field), Payette (3 fields), Owyhee (5 fields), Canyon (13 fields), Ada (2 fields), Elmore (1 field), Gooding (2 fields), Twin Falls (7 fields), Jerome (6 fields), Minidoka (2 fields), and Cassia (4 fields). Additionally, potato psyllid nymphs (8 total) were captured on leaf samples from Ada County (2 fields) and Canyon County (1 field), and 42 potato psyllid adults were captured in vacuum samples taken from four Intense fields in Canyon and Ada counties.

This week, we collected 957 psyllids from sticky cards (727 from Light sites and 230 from Intense sites). Of the total 999 psyllids captured this week, 950 came from the Treasure Valley. We found psyllids in 46 of the 99 fields (46%) that were sampled this week. To put these numbers into perspective, we captured a total of approximately 1,100 psyllids for the entire year during each of the 2013 and 2015 seasons.

With the recent increase in psyllid numbers and attrition of our summer help, we ran Lso testing on a subset of psyllids collected last week (up to ten psyllids per site). So far, none of the psyllids tested last week was positive for Lso. About 25% of samples remain to be test, and we expect to have those Lso results early next week.

We scouted a few fields in the Magic Valley that have had Lso-positive psyllids this year and found no evidence of zebra chip in the plants that we sampled. This is encouraging. However, because of the recent prevalence of Lso and the relatively high numbers of potato psyllids that we have been collecting each week, we urge growers to maintain their IPM programs targeting psyllids and to be on the lookout for plants exhibiting ZC symptoms over the coming weeks. Foliar symptoms should be manifested about three weeks following infection, but will need to be confirmed by examining and testing tubers. See link below for description and photos of ZC symptoms, and please take suspicious plant samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

ZC found in Magic Valley

Potato    All Locations

Posted on: August 24, 2016 by Erik Wenninger

A potato field in the Magic Valley was found to have potato plants exhibiting classic ZC symptoms in both the tubers and foliage. Tubers are being sent for confirmation by moleculr testing. Given that we have now found ZC in both the Treasure and Magic Valleys and have been capturing relatively high numbers of potato psyllids this season, we urge growers to maintain their IPM programs targeting psyllids and to be on the lookout for plants exhibiting ZC symptoms

Photos of typical ZC symptoms exhibited by foliage and tubers may be found in this alert as well as at the link below. Be aware that symptoms in tubers may not be show through the entire tuber or in all tubers under a single plant.
http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/30058/pnw633.pdf

Consult our website for more information, including management recommendations and online spreadsheets that show details of the psyllid captures in potato fields over the season. Updates to these spreadsheets may occur throughout the week as liberibacter testing results come in.
http://www.uidaho.edu/extension/news/psyllid-management

» http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/30058/pnw633.pdf

» http://www.uidaho.edu/extension/news/psyllid-management

» ZC_tubers_and_aerial_tubers.jpg

Onion Variety Day at the Malheur Experiment Station

Onion    Treasure Valley

Posted on: August 22, 2016 by Bill Buhrig

The annual Onion Variety Day at the Malheur Experiment Station will be Tuesday, August 30th. It is free to attend and you are invited to check things out. The field portion starts at 9am and there will be lunch starting at noon in the barn. It will be a good time to see how the varieties performed and visit with your neighbors!

» http://cropinfo.net/pdf/events/OnionDay2016.pdf

» OnionDay2016.pdf

August 19, 2016 – First incidence of ZC in Idaho during 2016; psyllid numbers still high

Potato    All Locations

potato psyllids

Posted on: August 19, 2016 by Amy Carroll

At least two fields in western Idaho were found to exhibit a high incidence of severe ZC symptoms in tubers. The incidence is estimated to be upwards of 60%. Samples are on their way to campus for confirmation of ZC by molecular testing. Unfortunately, these fields were not part of our psyllid monitoring network; however, this development supports the need to maintain an IPM program targeting psyllids through the end of the season.

Only one potato psyllid collected last week tested positive for Lso (liberibacter), the bacterium that causes zebra chip. Lso-positive psyllids were found in the following counties: Payette (1 field).

Potato psyllids were collected this week on sticky traps in potato in the following counties: Malheur (OR) (1 field), Payette (3 fields), Owyhee (5 fields), Canyon (13 fields), Ada (2 fields), Elmore (2 fields), Gooding (2 fields), Twin Falls (5 fields), Jerome (3 fields), Minidoka (2 fields), and Cassia (4 fields). Additionally, potato psyllid nymphs (22 total) were captured on leaf samples from Ada County (2 fields) and Canyon County (2 fields), with 38 potato psyllid adults being captured from vacuum samples taken from four Intense fields in the following counties: Canyon, Ada, and Gooding.

We collected 690 psyllids this week from sticky cards (556 from Light sites and 134 from Intense sites). Of the total 728 psyllids captured this week, 643 came from the Treasure Valley. We found psyllids in 43 of the 83 fields (52%) that were sampled this week. We had several cards from sites that did not come in this week, but will be processed when they hopefully arrive next week.

Because of the recent prevalence of Lso and the relatively high numbers of potato psyllids that we have been collecting each week, we urge growers to maintain their IPM programs targeting psyllids and to be on the lookout for plants exhibiting ZC symptoms over the coming weeks. Foliar symptoms should be manifested about three weeks following inoculation, but will need to be confirmed by examining and testing tubers. See link below for description and photos of ZC symptoms, and please take suspicious plant samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://www.uidaho.edu/extension/news/psyllid-management

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

August 12, 2016 – Psyllid numbers fall compared to recent weeks

Potato    All Locations

potato psyllids

Posted on: August 12, 2016 by Amy Carroll

Only three potato psyllids collected last week tested positive for Lso (liberibacter), the bacterium that causes zebra chip. Lso-positive psyllids were found in the following counties: Canyon (1 field) and Gooding (1 field). One nymph collected from a leaf sample on an Intense field in Canyon County tested positive.

Potato psyllids were collected this week on sticky traps in potato in the following counties: Malheur (OR) (1 field), Payette (3 fields), Owyhee (5 fields), Canyon (13 fields), Ada (1 field), Elmore (2 fields), Gooding (3 fields), Twin Falls (6 fields), Jerome (2 fields), Minidoka (2 fields), and Cassia (1 field). Additionally, potato psyllid nymphs (3 total) were captured on leaf samples from Ada County (1 field) and Jerome County (1 field), with two potato psyllids being captured from a vacuum sample taken from one Intense field in Canyon County.

We collected 260 psyllids this week from sticky cards (190 from Light sites and 70 from Intense sites). Of the total 262 psyllids captured this week, 233 came from the Treasure Valley. We found psyllids in 39 of the 97 fields (40%) that were sampled this week.

Because of the recent prevalence of Lso and the relatively high numbers of potato psyllids that we have been collecting each week, we urge growers to maintain their IPM programs targeting psyllids and to be on the lookout for plants exhibiting ZC symptoms over the coming weeks. Foliar symptoms should be manifested about three weeks following inoculation, but will need to be confirmed by examining and testing tubers. See link below for description and photos of ZC symptoms, and please take suspicious plant samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://www.uidaho.edu/extension/news/psyllid-management

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

Corn Earworm moth counts for August 10

Corn    Treasure Valley

corn earworm

Posted on: August 10, 2016 by Jerry Neufeld

Below is the final corn earworm count for this year. There didn’t seem to be a lot of corn earworm this year. That is what I have found for the last couple of years. I would appreciate hearing from you if you had a different experience.
Dry Lake 4
Kuna 1
Melba 10
Homedale 14
Wilder 8
Parma 2
Caldwell 0
total 39

August 5, 2016 – Positive psyllids in Payette, Canyon, and Ada counties

Potato    All Locations

potato psyllids

Posted on: August 5, 2016 by Amy Carroll

Several potato psyllids collected last week tested positive for Lso (liberibacter), the bacterium that causes zebra chip. Lso-positive psyllids were found in the following counties: Payette (1 field), Canyon (7 fields), and Ada (1 field). This is fewer than the previous two weeks.

Potato psyllids were collected this week on sticky traps in potato in the following counties: Malheur (OR) (1 field), Payette (3 fields), Owyhee (5 fields), Canyon (13 fields), Ada (2 fields), Elmore (2 fields), Gooding (1 field), Twin Falls (4 fields), Jerome (6 fields), Minidoka (3 fields), Cassia (4 fields), Power (3 fields), and Bingham (1 field). Additionally, potato psyllid nymphs (26 total) were captured on leaf samples from Ada County (2 fields) and Canyon County (2 fields), with three potato psyllids being captured from a vacuum sample taken from one Intense field in Canyon County.

We collected 379 psyllids this week from sticky cards (263 from Light sites and 116 from Intense sites). Of the total 379 psyllids captured this week, 308 came from the Treasure Valley. We found psyllids in 48 of the 101 fields (48%) that were sampled this week.

Because of the recent prevalence of Lso and the relatively high numbers of potato psyllids that we have been collecting each week, we urge growers to maintain their IPM programs targeting psyllids and to be on the lookout for plants exhibiting ZC symptoms over the coming weeks. Foliar symptoms should be manifested about three weeks following inoculation, but will need to be confirmed by examining and testing tubers. See link below for description and photos of ZC symptoms, and please take suspicious plant samples to the Kimberly R&E Center or to your local UI Extension Center.

More information and resources on potato psyllids and ZC, including management, scouting recommendations, and ZC symptomology can be found at the links below.

http://oregonstate.edu/dept/hermiston/sites/default/files/pnw633_0.pdf

Detailed results from the “Light” sites can be found here:
https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

Detailed results from the “Intense” sites can be found here:
https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0

» http://www.uidaho.edu/extension/news/psyllid-management

» https://docs.google.com/spreadsheets/d/1EruNcKgfqJ0RUpleaHBpODfwBZIqDyT4l-9MPKZBYcY/edit#gid=0

» https://docs.google.com/spreadsheets/d/1Uk6GBxEgZeGWWhT84wymaWfHRs2it_Eg02eWPFLgWsI/edit#gid=0