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Time to spray for Peach Leaf Curl Fungus!
Tree Fruits Treasure Valley
Peach Leaf Curl
Posted on: October 17, 2017 by Dian Roberson
We had many clients visit our Master Gardener Plant Clinics with peach leaf curl, a fungal infection. As leaf drop occurs in the fall, any open sights become infection points that will carry over to the next growing season. By the time you spray your delayed dormant copper in the spring, these infected sights will have already effected the newly developing leaves.
Now, during leaf drop is the time to apply fall coppers. The first application should be at 30% leaf drop and a second at 70% leaf drop. It is also advisable to use a good sticker product to adhere the copper to the open wounds. The recommended copper use rates will vary based on product choice.
You will also need to repeat the copper fungicide in the spring.
» https://pnwhandbooks.org/plantdisease/host-disease/peach-prunus-persica-leaf-curl
Brown Marmorated Stink Bug (BMSB)
All Crops Treasure Valley - Idaho
Brown Marmorated Stink Bug
Posted on: October 17, 2017 by Dian Roberson
The BMSB has been sighted in the Middleton area. So far only a scattered handful have been found in our area this year but we are on the look out for an infestation. The BMSB is both an agricultural and nuisance pest. It can damage fruit and vegetable crops and invades homes and other buildings. Check out the link below from the Idaho Department of Agriculture for more information. If you think you have spotted some BMSBs on your property, please contact your local extension office or department of agriculture office.
FSMA Grower Training Classes
All Crops All Locations
Posted on: October 17, 2017 by Stuart Reitz
Food Safety Modernization Act (FSMA) Update
Although the FSMA water testing rules are on hold, the other provisions in the Produce Safety Rule are going into effect as previously scheduled.
The first compliance dates for the Produce Safety Rule requirements begin in January 2018 for farms that produce Raw Agricultural Commodities (e.g., onions, carrots, melons, tree fruit, grapes, berries) and have more than $500,000 in annual produce sales. Compliance dates are staggered by farm size, so smaller farms (based on produce sales) have later compliance dates.
To determine if your farm is covered by the Produce Safety Rule and your target compliance dates, complete this self-guided decision tool provided by the University of Idaho https://uidaho.co1.qualtrics.com/jfe/form/SV_8D1ucSlEeq749AF.
FSMA Training:
The Produce Safety Rule requires that one representative from each covered farm receive training accredited by the FDA. Currently, Produce Safety Alliance (PSA) trainings are the only standardized national training program approved by FDA.
The first grower training classes in the PNW are coming up in November:
Nov 7 - Medford, OR
Nov 7 - Idaho Falls, ID
Nov 9 - Twin Falls, ID
Nov 13 - Aurora, OR
Nov 14 - Hermiston, OR
Nov 14 - Caldwell, ID
Nov 15 - Caldwell, ID
Nov 15 - Hood River, OR
Nov 16 - Payette, ID
Produce Safety Alliance information, including comprehensive list of training classes and how to register:
https://producesafetyalliance.cornell.edu/food-safety-modernization-act or visit the individual states' websites listed below.
These are national standards, so trainings can be done in either Oregon, Idaho, Washington, or anywhere else.
Oregon information: http://www.oregon.gov/ODA/agriculture/Pages/FSMA.aspx.
Idaho information: http://www.uidaho.edu/extension/food-safety-for-produce-growers.
Washington FSMA information: https://agr.wa.gov/FoodAnimal/ProduceSafety/
Please check the full schedule of classes in Idaho at:
https://www.eventbrite.com/o/university-of-idaho-extension-produce-safety-14547809781
Produce Safety Alliance information, including comprehensive list of training classes:
https://producesafetyalliance.cornell.edu/food-safety-modernization-act
» http://www.oregon.gov/ODA/agriculture/Pages/FSMA.aspx
» http://www.uidaho.edu/extension/food-safety-for-produce-growers
» https://agr.wa.gov/FoodAnimal/ProduceSafety/
» https://uidaho.co1.qualtrics.com/jfe/form/SV_8D1ucSlEeq749AF
End of psyllid monitoring in Idaho for the 2017 season
Potato All Locations
Potato Psyllid
Posted on: October 5, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Gooding (1 field), Twin Falls (1 field), Jerome (1 field), and Bannock (1 field).
This week, we collected 22 psyllids from sticky cards (all from Intense sites).
Nearly all of the 95 fields that were in the monitoring program have been harvested. We had traps deployed in the 7 remaining fields and found psyllids in 4 of them.
Thus far, all psyllids collected last week tested negative for Lso (liberibacter), the bacterium associated with zebra chip disease.
This is the last week of psyllid monitoring in potato fields for this season. Thankfully psyllid numbers were far lower than last year, and Lso incidence thus far has been lower than we’ve ever recorded for a season.
We are extremely grateful to all of the growers, crop consultants, and other cooperators who helped with this project.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Now accepting applications for 2018 Master Gardener Volunteer Training.
All Crops All Locations
Master Gardener Volunteers Needed!!!!
Posted on: October 4, 2017 by Rich Guggenheim
If you are interested in sharing research based information to help Idaho gardeners successfully and sustainably grow, The Idaho Master Gardener Volunteer program is for you!
Our volunteers share research based gardening information in a variety of ways. From speakers bureau's to school gardens, we are in need of volunteers who have a passion for helping people grow!
Training begins January 17th and runs for 16 weeks and is the equivalent to a three credit college course.
You will be learn about:
Agronomy and soil science
Botany
Phytopathology
Entomology
Weed science
Disease diagnostics
Integrated Pest Management
Turf management
Arboriculture
Fruit and vegetable production
Sustainable Landscape design and management.
Cost includes a background check, all books and supplies for the class, a soil test, t-shirt.
Upon completion of the 40 hour classroom training, volunteers are required to complete 40 hours of approved education in the community.
Space is limited, so please apply early.
Those working in the green industries are invited to apply without the volunteer requirement. Call 208-459-6003 for more information.
» https://drive.google.com/open?id=0B88K2B0J0jApZC1tRFdxeEFUdjQ
Now taking orders for the Seedlings for Conservation program!
All Crops All Locations
Conservation
Posted on: October 4, 2017 by Rich Guggenheim
We are now taking orders for the #SeedlingsForConservation program. We *strongly* recommend you order early as popular varieties sell out quickly. See the attached order form for pricing and lot information. For more information, contact the University of Idaho Extension office in Canyon County at 208-459-6003.
» https://drive.google.com/file/d/0B88K2B0J0jApa2RlNkhRQlpBb2M/view
Psyllid monitoring update, 29 September 2017
Potato All Locations
Potato Psyllid
Posted on: September 29, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (1 field), Gooding (1 field), Jerome (1 field), and Bannock (1 field).
This week, we collected 7 psyllids from sticky cards (1 from Light site and 6 from Intense sites).
Nearly all of the 95 fields that were in the monitoring program have been harvested. We had traps deployed in the 7 remaining fields and found psyllids in 4 of them.
Thus far, all psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip. However, with the increased trap captures during recent weeks, some psyllids remain to be tested.
We expect to close out this year’s monitoring program within the next 2-3 weeks.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Temperatures and psyllid abundance decrease
Potato All Locations
Potato Psyllid
Posted on: September 22, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (3 fields) Gooding (1 field), and Power (1 field).
This week, we collected 50 psyllids from sticky cards (all from Intense sites).
Many of the 95 fields that were in the monitoring program are being vine killed or harvested. We had traps deployed in 19 of the remaining fields and found psyllids in 5 of these 19 fields (26.3%). However, we are waiting to receive cards from an additional 21 Light sites.
Thus far, all psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip. However, with the increased trap captures during the last two weeks, some psyllids remain to be tested.
The dip in psyllid captures is almost certainly related to the cooler, rainy weather (in addition to the fact that fewer fields are still being monitored). Despite the rise in psyllid abundance during the previous 2-3 weeks, Lso incidence remains far lower than we’ve ever recorded for a season. Risk of ZC continues to appear relatively low as the season winds down.
We expect all of the remaining fields being monitored to undergo vine kill within the next two weeks.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Psyllid captures continue to rise, but season Lso incidence still remains low
Potato All Locations
Potato Psyllid
Posted on: September 15, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Payette (1 field), Canyon (9 fields), Elmore (1 field), Gem (1 field), Gooding (1 field), Twin Falls (5 fields), Jerome (2 fields), Minidoka (1 field), Cassia (7 fields), and Power (2 fields).
This week, we collected 243 psyllids from sticky cards (94 from Light sites and 149 from Intense sites).
Many of the 95 fields that were in the monitoring program are being vine killed or harvested. We had traps deployed in all 70 of the remaining fields and found psyllids in 30 of these 70 fields (42.8%).
This week we found 39 nymphs in leaf samples from one site in Canyon county.
Thus far, all psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
Although psyllid abundance is rising, Lso incidence remains far lower than we’ve ever recorded for a season.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Psyllid captures continue to rise, but season Lso incidence remains low
Potato All Locations
Potato Psyllid
Posted on: September 8, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Payette (1 field), Canyon (10 fields), Elmore (2 fields), Gem (1 field), Gooding (1 field), Twin Falls (5 fields), Jerome (3 fields), Cassia (3 fields), Power (1 fields), and Bingham (1 field).
This week, we collected 126 psyllids from sticky cards (70 from Light sites and 56 from Intense sites).
Many of the 95 fields that were in the monitoring program are being vine killed or harvested. We had traps deployed in all 67 of the remaining fields and found psyllids in 28 of these 67 fields (41.8%). However, we are still waiting to receive cards from 10 light sites.
This week we found 3 nymphs in leaf samples from Canyon county and 4 adults in vacuum samples from Gooding and Twin Falls counties. This is the first incidence of immature psyllids in our samples this year, which is not surprising at this point in the season.
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
The late-season rise in psyllid captures is consistent with the general pattern we’ve observed for the last five years. However, overall psyllid abundance is still only about 5-10% of what we saw last year at this time, and Lso incidence so far is lower than we’ve ever recorded for a season (1.33%).
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Fall 2017 Dig In Newsletter
Announcements All Locations
Posted on: September 5, 2017 by Rich Guggenheim
Dig into some great tips on fall gardening in this year's fall edition of Dig In.
2017 Treasure Valley Tomato Taste off
Announcements All Locations
Posted on: September 5, 2017 by Rich Guggenheim
Join us on September 16th from 10 am to 2 pm for the Treasure Valley Tomato Taste off.
Uptick in psyllid abundance as season winds down
Potato All Locations
Potato Psyllid
Posted on: September 1, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (9 fields), Gem (1 field), Gooding (1 field), Twin Falls (7 fields), Jerome (2 fields), Cassia (1 field), Power (2 fields), and Bingham (1 field).
This week, we collected 59 psyllids from sticky cards (39 from Light sites and 20 from Intense sites).
As the season winds down, some of the 95 fields that were in the monitoring program are being vine killed or harvested. We had traps deployed in all 88 of the remaining fields and found psyllids in 24 of these 88 fields (27.2%).
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
Typically we see a spike in psyllid abundance during late August to September, which may explain the uptick in psyllid numbers this week. However, overall psyllid abundance is still only about 5-10% of what we saw last year at this time.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Unusable pesticide disposal
All Crops All Locations
Posted on: September 1, 2017 by Jerry Neufeld
Idaho State Department of Agriculture is announcing their fall schedule for collecting unusable pesticides. Click on the pdf below for more information.
Psyllid monitoring update, 25 August 2017
Potato All Locations
Potato Psyllid
Posted on: August 25, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Payette (1 field), Canyon (6 fields), Gem (1 field), Gooding (1 field), Twin Falls (5 fields), Jerome (2 fields), Minidoka (1 field), and Power (1 field).
This week, we collected 32 psyllids from sticky cards (22 from Light sites and 10 from Intense sites).
As the season winds down, some of the 95 fields that were in the monitoring program are being vine killed or harvested. We had traps deployed in 91 of the 92 remaining fields and found psyllids in 18 of these 91 fields (19.8%).
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
Typically we see a spike in psyllid abundance during late August to September, but this continues to be a relatively “quiet” year for potato psyllids. We will have to wait and see what the coming weeks bring.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
No Late Blight in Potatoes yet in 2017
All Crops All Locations
Late Blight
Posted on: August 20, 2017 by Kasia Duellman Kinzer
No confirmed reports of late blight in Idaho as of August 17, 2017 – But
Don’t let your guard down
We have received no confirmed reports of late blight on potatoes in Idaho as
of August 18, 2017. However, it’s important that we don’t let our guard
down. Over the years, when outbreaks do occur in Idaho they tend to come at
this time of the year when the nights are getting longer and dew and
humidity lingers in the canopy later into the morning. The appearance of
late blight this time of year puts tubers at greater risk of infection, and
as long as plants have green tissue, diligent monitoring for this disease
should continue.
Late blight has been reported in the Columbia Basin in Washington, but there
have been no reports of late blight in Oregon.
The strain of the late blight pathogen (Phytophthora infestans) that is
prevalent in Idaho, US-23, can infect tomatoes as easily as it infects
potatoes. With the recent cool wet weather we have experienced in south
eastern Idaho, growers who have potato fields near housing subdivisions
should consider scouting for symptoms of late blight in low lying areas or
areas which stay wet longer next to the subdivisions, since late blight may
spread from garden tomatoes to surrounding potato fields. Timely diagnosis
of late bight is vital for successful management of this disease.
If you happen to grow tomatoes, it’s critically important to monitor your
garden tomatoes, too. We encourage samples of potato or tomato suspected to
be infected with late blight to be sent to University personnel for
confirmation.
If you think that you have late blight in your potato field or garden
tomatoes, please submit a sample to the University of Idaho for
confirmation. For southwestern Idaho (and Malheur Co. Oregon), contact
University of Idaho personnel at the Parma Research and Extension Center at
208-722-6701; for south central Idaho, contact the Kimberly Research and
Extension Center at (208) 423-4691; and for southeastern Idaho, contact the
Idaho Falls Research and Extension Center at (208) 529-8376 or the Aberdeen
Research and Extension Center at (208) 397-4181.
This information provided by Drs. Kasia Duellman and Phillip Wharton, University of Idaho
Psyllid monitoring update, 18 August 2017
Potato All Locations
Potato Psyllid
Posted on: August 18, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Owyhee (1 field), Canyon (5 fields), Gooding (1 field), Twin Falls (5 fields), Jerome (2 fields), Minidoka (1field), Cassia (1 field), and Power (2 fields).
This week, we collected 33 psyllids from sticky cards (23 from Light sites and 10 from Intense sites).
We had traps deployed in 93 of the 95 fields that are being monitored this year and found psyllids in 18 of these 93 fields (19.3%).
Thus far, all psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
This continues to be a relatively “quiet” year for potato psyllids. For perspective, during August last year we were collecting hundreds of psyllids per week with similar sampling effort.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Contaminated Azadirachtin Organic Insecticides - Recall Notice
All Crops All Locations
Posted on: August 18, 2017 by Ronda Hirnyck
University of Arizona Extension Faculty put together the attached IPM Short on the topic of contaminated organic insecticide products with the active ingredient azadirachtin, some of which are subject to a national voluntary recall. Please share this information with growers, PCAs, distributors, Master Gardeners, or others who may use or have an interest in these products. Please share with you Master Gardeners also.
Click on the pdf below for more information.
corn earworms counts for August 16
Corn Treasure Valley
corn earworm
Posted on: August 16, 2017 by Jerry Neufeld
Below are the corn earworm counts by location taken this morning, August 16. The counts are the highest they have been this year, but remember, University of Idaho CIS 366 entitled "Timing Corn Earworm Control" states that corn earworm moths lay eggs in freshly silking corn.
Weekly Corn Earwom Counts, 2017
Location 7/25, 8/1, 16-Aug
Melba 51, 3, 1
South Nampa 3, 17, 26
South Caldwell 12, 15, 51
Huston 15, 6, 7
Homedale 10, 22, 38
Wilder 41, 23, 29
Middleton 5, 12, 27
totals 137, 98, 179
Potato psyllid monitoring update, 11 August 2017
Potato All Locations
potato psyllids
Posted on: August 11, 2017 by Erik Wenninger
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (9 fields), Elmore (1 field), Twin Falls (2 fields), Jerome (1 field), Minidoka (1field), and Power (1 field).
This week, we collected 26 psyllids from sticky cards (22 from Light sites and 4 from Intense sites).
We had traps deployed in 91 of the 95 fields that are being monitored this year and found psyllids in 15 of these 91 fields (16.5%).
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
This continues to be a relatively “quiet” year for potato psyllids. For perspective, during August last year we were collecting hundreds of psyllids per week with similar sampling effort.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Malheur Experiment Station Onion Variety Day August 22
All Crops All Locations
Posted on: August 9, 2017 by Janet Jones
Malheur Experiment Station Onion Variety Day August 22
You are invited to the Malheur Experiment Station Onion Variety Day!
Place: Malheur Experiment Station, 595 Onion Ave, Ontario, OR
in the field off Onion Avenue under the canopy.
Date: Tuesday, August 22, 2017
Registration starts at 9:00am with donuts and refreshments.
A complimentary lunch will be served at noon.
Click on the PDF below for the Flyer.
Please RSVP for lunch or if you need more information call Jan Jones at (541) 889-2174 or email janet.jones@oregonstate.edu.
First Lso-positive psyllid collected in Treasure Valley this year
Potato All Locations
Potato Psyllid
Posted on: August 4, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (5 fields), Gem (1 field), Elmore (1 field), Twin Falls (4 fields), Jerome (2 fields), Minidoka (2 fields), Cassia (4 fields), and Bannock (1 field).
This week, we collected 35 psyllids from sticky cards (23 from Light sites and 12 from Intense sites).
We had traps deployed in 92 of the 95 fields that are being monitored this year and found psyllids in 20 of these 92 fields (21.7%).
One psyllid collected last week in Canyon County tested positive for Lso (liberibacter), the bacterium that causes zebra chip. This is our first hot psyllid in the Treasure Valley this year and our fifth hot psyllid collected this year on sticky traps in commercial potato fields. Thus far this year, 2.3% of the psyllids we have collected on sticky traps have tested positive for Lso. This percentage is higher than last year, though the total number of psyllids collected this year has been far lower than last.
We continue to urge growers and crop consultants to have an IPM program in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Curly Top confirmed in Peppers and Beets!
Landscape and Garden Treasure Valley
Posted on: August 4, 2017 by Dian Roberson
We have confirmed cases of Beet Curly Top Virus in both peppers and sugar beets. It also infects a wide range of crops such as tomatoes, beans, beets, cucurbits, spinach, and squash. The virus is spread by the beet leafhopper, Circulifer tenellus. Read the articles below for identification and control information!
» https://pnwhandbooks.org/plantdisease/host-disease/tomato-lycopersicon-esculentum-curly-top
» https://pnwhandbooks.org/insect/agronomic/sugar-beet/sugar-beet-beet-leafhopper
corn earworms counts for August 1
Corn Treasure Valley
corn earworm
Posted on: August 1, 2017 by Jerry Neufeld
Corn earworm traps with pheromone lures were set out at 7 locations two weeks ago. Below are the moth counts taken from these traps as of August 1. Moth counts are higher this year than they have been for several years.
Location 7/25, 8/1
Melba 51, 3
South Nampa 3, 17
South Caldwell 12, 15
Huston 15, 6
Homedale 10, 22
Wilder 41, 23
Middleton 5, 12
Totals 137, 98
Psyllid monitoring update, 28 July 2017
Potato All Locations
Potato Psyllid
Posted on: July 28, 2017 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (5 fields), Gem (1 field), Elmore (1 field), Twin Falls (5 fields), Gooding (1 field), Jerome (1 field), Cassia (2 fields), Power (1 field), and Bannock (1 field).
This week, we collected 24 psyllids from sticky cards (19 from Light sites and 5 from Intense sites).
We had traps deployed in 94 of the 95 fields that are being monitored this year and found psyllids in 24 of these 94 fields (25.5%).
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
We continue to urge growers and crop consultants to have an IPM program in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
