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INTEGRATED CROP-LIVESTOCK SYSTEM (ICLS) FIELD DAY
All Crops Treasure Valley, Treasure Valley - Idaho
Posted on: September 17, 2024 by Jemila Chellappa
| WHEN | Thursday, Sep. 19, 2024, 9 a.m. – 1 p.m. MDT |
|---|---|
| WHERE | McIntyre Farms 17708 Lewis Lane Caldwell, ID |
THERE IS NO COST TO ATTEND BUT REGISTRATION IS REQUESTED
Call the Canyon County Extension Office
at 208-459-6003 to secure your spot!
final report of the 2024 potato psyllid / Lso monitoring season.
Potato All Locations
potato psyllid
Posted on: September 12, 2024 by Tasha Stanzak
This is the
final report of the 2024 potato psyllid / Lso monitoring season.
One psyllid
from last week’s samples tested positive for Lso, the bacterium associated with
zebra chip disease (ZC).
About 4% of all
psyllids tested positive for Lso this year compared to about 6% last year and around
1% in most recent years (with the exception of 2022 in which 22% were positive).
It was another
interesting year with moderately high Lso incidence, but relatively low overall
psyllid captures. Captures were only slightly higher than last year. Thus, the
risk of ZC likely was mitigated somewhat by low psyllid captures despite
relatively high Lso.
Please remember
that our research with Russet Burbank shows that ZC can develop during storage
if infection occurs as late as two weeks before vine kill. Please maintain your
IPM programs, especially in areas with higher captures of Lso-positive
psyllids.
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:
Management: 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/
Cowpea Aphid in Washington County, Idaho
Alfalfa Treasure Valley, Treasure Valley - Idaho
Cowpea Aphids
Posted on: September 11, 2024 by Dr. Armando Falcon-Brindis, Entomologist, Parma Research and Extension Center, Parma, University of Idaho
(09/09/2024)
The cowpea aphid was detected on alfalfa hay fields about 6 miles northwest of Weiser, Washington County. This is a dryland alfalfa field (drought tolerant), which could be a good incentive for these aphids. Farmers have never seen this pest in the area.
Numbers were within the limits of threshold levels (>100 aphids per plant) considering the size of the plants (20-25'' tall). The populations might explode if the warm conditions remain. I found many natural enemies (ladybugs, lacewings, parasitic wasps, big eye bugs, and more) attacking the aphids.
In some plants, ladybugs completely wiped out the cowpea aphids! So, watch out for the natural enemies.
IMPORTANT: as part of the decision-making process, consider the size of the plants, the number of aphids, the presence of natural enemies, and the harvesting date.
Attached is a picture of the cowpea aphid, and here are some links with more information about the management practices.
https://ipm.ucanr.edu/agriculture/alfalfa/aphid-monitoring/#gsc.tab=0
https://extension.colostate.edu/topic-areas/insects/aphids-in-alfalfa-5-531/
https://pnwhandbooks.org/insect/hay-pasture/alfalfa/alfalfa-hay-aphid
INTEGRATED CROP-LIVESTOCK SYSTEM (ICLS) FIELD DAY
All Crops Treasure Valley, Treasure Valley - Idaho
Posted on: September 17, 2024 by Jemila Chellappa
| WHEN | Thursday, Sep. 19, 2024, 9 a.m. – 1 p.m. MDT |
|---|---|
| WHERE | McIntyre Farms 17708 Lewis Lane Caldwell, ID |
THERE IS NO COST TO ATTEND BUT REGISTRATION IS REQUESTED
Call the Canyon County Extension Office
at 208-459-6003 to secure your spot!
final report of the 2024 potato psyllid / Lso monitoring season.
Potato All Locations
potato psyllid
Posted on: September 12, 2024 by Tasha Stanzak
This is the
final report of the 2024 potato psyllid / Lso monitoring season.
One psyllid
from last week’s samples tested positive for Lso, the bacterium associated with
zebra chip disease (ZC).
About 4% of all
psyllids tested positive for Lso this year compared to about 6% last year and around
1% in most recent years (with the exception of 2022 in which 22% were positive).
It was another
interesting year with moderately high Lso incidence, but relatively low overall
psyllid captures. Captures were only slightly higher than last year. Thus, the
risk of ZC likely was mitigated somewhat by low psyllid captures despite
relatively high Lso.
Please remember
that our research with Russet Burbank shows that ZC can develop during storage
if infection occurs as late as two weeks before vine kill. Please maintain your
IPM programs, especially in areas with higher captures of Lso-positive
psyllids.
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:
Management: 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/
» https://idahopestmonitoring.org/
Cowpea Aphid in Washington County, Idaho
Alfalfa Treasure Valley, Treasure Valley - Idaho
Cowpea Aphids
Posted on: September 11, 2024 by Dr. Armando Falcon-Brindis, Entomologist, Parma Research and Extension Center, Parma, University of Idaho
(09/09/2024)
The cowpea aphid was detected on alfalfa hay fields about 6 miles northwest of Weiser, Washington County. This is a dryland alfalfa field (drought tolerant), which could be a good incentive for these aphids. Farmers have never seen this pest in the area.
Numbers were within the limits of threshold levels (>100 aphids per plant) considering the size of the plants (20-25'' tall). The populations might explode if the warm conditions remain. I found many natural enemies (ladybugs, lacewings, parasitic wasps, big eye bugs, and more) attacking the aphids.
In some plants, ladybugs completely wiped out the cowpea aphids! So, watch out for the natural enemies.
IMPORTANT: as part of the decision-making process, consider the size of the plants, the number of aphids, the presence of natural enemies, and the harvesting date.
Attached is a picture of the cowpea aphid, and here are some links with more information about the management practices.
https://ipm.ucanr.edu/agriculture/alfalfa/aphid-monitoring/#gsc.tab=0
https://extension.colostate.edu/topic-areas/insects/aphids-in-alfalfa-5-531/
https://pnwhandbooks.org/insect/hay-pasture/alfalfa/alfalfa-hay-aphid
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