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Ag Talk Report Newsletter - Issue 5 Number 1
All Crops All Locations
General announcement - all crops
Posted on: September 28, 2023 by Kasia Duellman
Greetings! The first issue of the Ag Talk Report for 2023 is now available. Ag Talk Report is a newsletter for Idaho crops and a venue to provide more insight from our Ag Talk Tuesday sessions. It contains information far beyond what is heard on the Ag Talk Tuesday sessions. It is now available for your reading pleasure at the following link: http://www.uidaho.edu/ag-talk
In this issue, learn about how hemp might be used in a potato rotation, gain insight into the economic outlook and costs of return for various crops, and find out how the 2023 southeast Idaho aphid monitoring efforts compared to other years.
final report of the 2023 potato psyllid / Lso monitoring season.
Potato All Locations
potato psyllid
Posted on: September 21, 2023 by Tasha Stanzak
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 year).
It was another interesting year with somewhat high Lso incidence, but relatively low overall psyllid captures. Captures were only slightly higher than last year, which was among our lowest years ever. Thus, the risk of ZC likely was mitigated somewhat by low psyllid captures despite relatively high Lso.
Thanks again to all of our cooperators who helped to deploy and retrieve so very many yellow sticky traps! And thanks to the growers who let us use their fields for this work!
More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid trapping wrap up
Potato All Locations
potato psyllid
Posted on: September 14, 2023 by Tasha Stanzak
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 (ZC). Next week we will report Lso results for the 12 psyllids submitted this week and provide an end-of-season wrap up.
About 7% of all psyllids tested positive for Lso this year compared to around 1% in most recent years (and 22% last year). It is too soon to tell what this low psyllid / somewhat high Lso season means for ZC in tubers at harvest. Our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. Risk could be mitigated by processing tubers from fields at higher risk sooner rather than later.
More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid trapping ends for the season.
Potato All Locations
potato psyllid
Posted on: September 7, 2023 by Tasha Stanzak
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 week of actively trapping psyllids. We will post the final results next week to finish out the monitoring season.
One psyllid tested from last week’s Canyon County captures was positive for Lso, the bacterium associated with zebra chip disease (ZC); the rest of the psyllids captured last week were negative for Lso. This is the first Lso positive we have detected since early July.
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
