Landscape & Garden Alerts
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Spring Garden Festival. ISA, ISDA, Teacher PD available.
All Crops All Locations
Garden Classes!
Posted on: February 20, 2018 by Rich Guggenheim
Join us on April 21st for an all day gardening festival with four tracks to choose from. A plant sale to benefit the Master Gardener Volunteer program will also be available. See the attached flyer for details.
The cost is $30 for the entire day. To register for a track, contact the University of Idaho Extension Office in Canyon County at 208-459-6003
» https://www.uidaho.edu/extension/county/canyon/horticulture/festival
Weeds and insects
Landscape and Garden All Locations
Early emergence of weeds and insects.
Posted on: February 14, 2018 by Rich Guggenheim
With unseasonably warm temperatures this winter, weeds and insects have already begun to emerge. It is predicted that weeds and insects will be severe this year. In addition to trapping and monitoring, application of dormant oils, pre emergent herbicides, and other preventative pest management measures should have already begun.
One of the most effective ways to manage weeds in the landscape is to apply a 4-6 inch layer of arborist chips.
For more information on controlling pests, including weeds and insects in your landscape, contact your local University of Idaho Extension office.
» http://extension.colostate.edu/topic-areas/insects/insect-control-horticultural-oils-5-569/
» http://ucanr.edu/datastoreFiles/268-754.pdf
» https://oregonstate.edu/dept/nursery-weeds/feature_articles/top_10/Top_10_reasons.html
Fruit Tree Pruning Workshop
Announcements All Locations
2018 Fruit Tree Pruning Workshop
Posted on: February 14, 2018 by Rich Guggenheim
The University of Idaho Pomology and Viticulture Program’s Annual Fruit Tree class will be held on Saturday, February 17th at 9:00 am until about 1:00 pm. It will be held in the large meeting room at Western Laboratory, 211 Hwy 95, Parma, ID 83660. After the classroom session (9:00-10:30), you will go to the UI orchards/vineyards for hands on demonstrations. You may bring your pruning tools if you would like. They will be cleaned before you start pruning. Please let us know if you are coming by Friday.
If you have any questions, please don’t hesitate to contact us.
University of Idaho
Parma Research & Extension Center
29603 U of I Lane
Parma, ID 83660
Phone: (208) 722-6701 ext. 228
Fax: (208) 722-6708
» https://www.uidaho.edu/cals/parma-research-and-extension-center
Grape School location Change
All Crops All Locations
2018 Grape School
Posted on: February 8, 2018 by Rich Guggenheim
Due to the large number of participants for the UI Grape School on Saturday, 9:00 am, Feb. 10th, we have had to change the location. It will now be held at the Western Laboratory’s large meeting room. The address is: 211 Hwy 95, Parma, ID 83660, just north of Parma on the west side of the highway. Their phone number is 208 722-6564 if you should have any questions.
Thank you and sorry for such short notice.
Maurine for Dr. Essie Fallahi
2018 Grape School
Grapes Treasure Valley - Idaho
Posted on: February 6, 2018 by Rich Guggenheim
The Pomology and Viticulture Program Annual Grape School will be held on Saturday Feb 10, 2018 from 9 am -12:30 pm at University of Idaho Parma Research and Extension Center. Physiological and practical aspects of grape production in Idaho, from planting to training and harvesting will be discussed. Participants will also practice different methods of grape pruning at the University of Idaho Vineyard. Free of charge. Please let us know if you or someone you know is joining us by Thursday Feb 8. Thank you
208-722-6701
» https://www.uidaho.edu/cals/parma-research-and-extension-center
2017 Survey
Landscape and Garden All Locations
Surveys
Posted on: October 23, 2017 by Rich Guggenheim
We are looking for your feedback on the 2017 Pest Alert Network. Please take a few moments of your time to help us improve. Thank you for your time.
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.
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
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.
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
Thrips
All Crops Treasure Valley
Thrips
Posted on: June 16, 2017 by Dian Roberson
We have confirmed thrips on grapes and many other landscape ornamentals.Thrips are very tiny, skinny, insects, less than 0.05 inch long. Color varies from reddish-yellow to mid-dark brown. Thrips have rasping mouthparts and damage plants by sucking out the contents of plant cells and depositing tiny specks of honeydew. Damaged leaves look bleached and/or silvered and speckled with shiny "tar-spot" excreted by thrips during feeding. They can damage flower buds, opened flowers, leaf buds and leaves.
» https://pnwhandbooks.org/insect/hort/landscape/common/landscape-thrips
National Pollinator Week!
All Crops Treasure Valley
Posted on: June 16, 2017 by Dian Roberson
Join us for a week full of fun events in Canyon County!
Saturday, June 17 – Kick off the week at the Nampa Farmers Market 9:00 am – 1:00 pm. Kids of all ages can get free flower seeds to attract pollinators!
Monday, June 19 - Join us at 1904 E Chicago Ave from 7:00 – 9:00 pm Rich Guggenheim will talk about Pollinator Gardens.
Tuesday, June 20 - Backyard Honey Bees 7:00 – 9:00 pm. 1904 E Chicago Ave in Caldwell. 208-459-6003.
Wednesday, June 21 –Caldwell Farmers Market 3:00 – 7:00 pm kid’s activities and information about attracting pollinators. 4:30 City of Caldwell Pollinator Proclamation!
Thursday, June 22 –Nampa Library 1:00 – 3:00 pm Pollinators all a Buzz!! Create a flower seed bomb.
Friday, June 23 –West Park in Nampa with Canyon County Master Gardeners make insect hotels. Construct and take home a mini bee board. We will dedicate our Bee-Inn 7-9 PM
Saturday, June 24 – Join us at 9 AM for the Grand Finale at the Northern Lights Theatre in Nampa for a showing of Disney’s “Wings of Life!” Contact Northern Lights Theatre for ticket information. 208- 475-2999
Western Cherry Fruit Fly (WCFF) Announcement 2017
Cherry Treasure Valley
Western Cherry Fruit Fly
Posted on: June 9, 2017 by Paul Castrovillo
On May 26 the first Western Cherry Fruit Fly captured in an Idaho State Department of Agriculture WCFF trap in Nampa, ID was reported. Two more WCFF were found today (June 7) in traps set up in Emmett, ID during early May. If treatment for WCFF is not already underway it should begin now.
For more information contact Paul Castrovillo at paul.castrovillo@isda.idaho.gov or call 208-332-8627
» https://pnwhandbooks.org/insect/tree-fruit/cherry/cherry-western-cherry-fruit-fly
Turf Buster Plant Sale
Announcements All Locations
Posted on: May 19, 2017 by Rich Guggenheim
The Canyon County Master Gardeners has plants for sale for your garden. Many 4 inch pots and 4 packs with tomatoes, peppers, onions, and more are only $1 beginning Monday. Seedling trees in 1 gal pots are $2.50 each. Stop by the office for more information or to purchase. Sale runs through Friday or until we run out of plants.
Master Gardener Scholarship Fundraiser
Announcements Treasure Valley - Idaho
Posted on: May 8, 2017 by Rich Guggenheim
The Master Gardeners in Canyon County are having a fundraiser to help raise money for scholarships. They are selling plants at the Extension Office Monday-Friday from 8-5 and also at Nampa Farmers Market on Saturday from 9-1 and the Caldwell Farmers Market on Wednesday from 3-7 during the month of May.
Prices are 4 Inch pots and 4 packs are $3 each or 2 for $5. We have many tomatoes, peppers, zinnia's, eggplant, okra, marigold, and other stuff for sale too in these sizes. Mix and match.
We have one gallon pots of seedling trees (Austrian Pine, Scots Pine, Blue Spruce, Rocky Mountain Juniper, Catalpa, Poplar, and Honey Locust) for $5 each.
Call 459-6003 or stop by the office at 501 Main St. in Caldwell.
Fire Blight (Erwinia sp.)
All Crops All Locations
Posted on: May 8, 2017 by Dian Roberson
Conditions have been in the extreme category over the last week for fire blight. This bacterial infection can attack anything in the rose family (Rosaceae). It is especially destructive to apples (Malus spp.), pears (Pyrus spp.), and crabapples (Malus spp.). There is no cure for fire blight. Prevention is the best solution. Purchase resistant varieties, minimize rapid growth and succulent tissue, prune out blighted twigs and cankered branches. Check out the publications and websites below for more information.
» https://pnwhandbooks.org/plantdisease/host-disease/apple-malus-spp-fire-blight
Codling Moth (Cydia pomonella)
Apple All Locations
Lepidoptera: Tortricidae
Posted on: May 3, 2017 by Rich Guggenheim
Codling moth has been trapped in Sunny slope orchards.
To successfully control codling moth in fruit trees, larvae must
be prevented from entering fruit. Controls must be applied
at a specific time. Once the eggs hatch and larvae enter the fruit, control
measures are ineffective.
Management includes a rigorous and routine schedule of spray insecticides, both organic and traditional, every 10 to 14 days depending on label instructions.
» http://jenny.tfrec.wsu.edu/opm/displayspecies.php?pn=5
» http://ipm.ucanr.edu/PMG/r4300111.html
» http://ipm.ucanr.edu/PMG/PESTNOTES/pn7412.html
» http://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1664&context=extension_curall
Spring 2017 edition of Dig In Newsletter
Announcements All Locations
Posted on: May 2, 2017 by Rich Guggenheim
The Spring 2017 edition of the Dig In Newsletter is now available. To pick up a print copy, stop by the University of Idaho Extension Office at 501 Main St. in Caldwell.
Bur Buttercup
All Crops All Locations
Bur Buttercup
Posted on: April 20, 2017 by Rich Guggenheim
Chemical control of Bur Buttercup (Ceratocephala testiculata) can be effective when weeds are extremely young. Mowing and burning is an effective cultural control as is hand pulling. The weed is now beginning to reach flowering and has entered the reproductive state. Bur Buttercup is also toxic to livestock. Always follow label instructions. Rotating pesticide mode of action can reduce the occurrence of pesticide resistance.
» http://extension.usu.edu/rangeplants/htm/bur-buttercup
» http://oregonstate.edu/dept/coarc/sites/default/files/june_2013_article-_weeds.pdf
Red band needle blight
Landscape and Garden All Locations
Dothistroma Mycosphaerella pini
Posted on: April 6, 2017 by Rich Guggenheim
Red Band Needle Blight of pines is caused by Mycosphaerella pini. Austrian pines are most susceptible, followed by ponderosa and mugo pines.
Symptoms include brown needles (often the base of needles remain green), premature needle drop, loss of vigor, and a slow decline. Needle injury may resembling winter injury or scorch, however, diseased needles will also show gumming and sometimes broken tips that are an ashy-gray color. In addition, dothistroma infections usually occur on the lower and/or inner branches, where moisture is greatest.
Infections occur anywhere on a needle, leaving a “red band” (another name for this disease). The disease often works its way from the bottom of the tree up. In spring and early summer, an infected tree will have brown interior needles, and infections on the current season’s needles will not show browning until fall.
For severely infested trees, fungicide treatments should be applied soon, before budbreak. In Utah’s dry climate, infection rarely gets to the point of necessitating chemical treatment, however.
Treatment: Although infections can occur throughout the season, only spring treatments of fungicide (when necessary) are necessary. Three applications of either copper hydroxide (Kocide), copper hydroxide+mancozeb (Junction, Mankocide), or other copper (Bonide, Camelot) may be necessary, starting at budbreak and twice again at 10- to 14-day intervals.
» http://utahpests.usu.edu/IPM/htm/advisories/landscape/articleID=13019
» http://www.extension.umn.edu/garden/yard-garden/trees-shrubs/dothistroma-needle-blight/
Apple Scab on Crabapples.
Small Fruits All Locations
Venturia inaequalis
Posted on: March 19, 2017 by Rich Guggenheim
The wet weather and cooler temperatures this spring has led to favorable conditions for apple scab to develop. Apple scab can lead to the defoliation of ornamental crabapples planted in the landscape.
The first visible symptoms of apple scab in the spring are pale, water-soaked spots the size of a pinhead on the new leaves.
Sanitation practices are the best cultural way to manage the spread of this fungal disease. Avoid water on the leaves to prevent spread of fungal spores.
» https://pnwhandbooks.org/plantdisease/host-disease/crabapple-malus-spp-scab
» http://extension.oregonstate.edu/gardening/how-control-apple-scab
» http://ipm.ucanr.edu/PMG/PESTNOTES/pn7413.html
» http://utahpests.usu.edu/ipm/htm/fruits/fruit-insect-disease&apple-scab
Yellow Jackets
Landscape and Garden All Locations
Vespula spp., Dolichovespula arenaria
Posted on: March 16, 2017 by Rich Guggenheim
Female Yellowjackets, the queens, who overwintered will be flying about looking for areas to establish new colonies. Now is the time to treat and prevent.
Vole Damage to Landscapes
Landscape and Garden All Locations
Voles - Microtus
Posted on: February 20, 2017 by Rich Guggenheim
Vole Damage is currently being seen throughout the area. As snow melts, the damage and tunneling caused by voles is evident.
» http://ipm.ucanr.edu/PMG/PESTNOTES/pn7439.html
» http://extension.usu.edu/files/publications/publication/NR_WD_009.pdf
