CSU Extension Greenhouse & Nursery Diagnostics

Potyvirus in Korean radish

2010-10-18T15:05:00.000-06:00

This sample came in before the winter break from a grower who specializes in Asian vegetables. A bag full of Korean radishes (also known as tae baek)- white & green very large (~6 inches long and ~3 inches diameter) radishes. This sample presented with leaf curling and dark flecks in the root tissue. Never having encountered a Korean radish before, I had to research the seed catalogs

8/28 Food Production Workshop-Greenhouse, Hydroponics and Aquaponics

2010-08-06T09:15:00.000-06:00

Saturday August 28, 9am-4pm Location: Johnson & Wales University, classroom COB90 located in the College of Business building at 1900 Olive St in Denver Workshop Description •Introduction to small-scale and community greenhouse, hydroponics and aquaponic systems•Greenhouse designs suitable for Colorado•Passive solar season extension techniques •Water quality testing information•Fish selection,

Still time to sign up: CNGA Insect, Disease and Soils Workshop

2010-03-18T14:35:00.002-06:00

Tuesday, March 23, 2010Little Valley Wholesale Nursery, Brighton, Colo.Each session costs $25 per person or $50 all day9 a.m. to 12 p.m. Morning session: Diseases and InsectsA general course for identifying pest problems in the nursery and greenhouse and will befollowed by a pest identification lab. Course instructor is Brooke Edmunds, Ph.D. from CSU Adams County Extension1 a.m. to 4 p.m.

In case you missed it: Greenhouse Virus Presentation

2010-03-17T23:19:00.003-06:00

This presentation was part of the Dec '09 Front Range Greenhouse IPM workshop: Viruses Affecting Production. I'm hoping to get a narrated version up but it won't be for a few weeks.Enjoy and as always contact me if you need more information!Common Greenhouse VirusesView more presentations from bedmunds.

New Diagnostic Reporting System

2010-03-16T21:42:00.005-06:00

As of March 1st, the Adams County Plant Diagnostic Clinic is using a new method to communicate with our clients. We have always been anonymously reporting our plant sample results to the National Plant Diagnostic System and now the software has been revised. The upgrade is designed to communicate diagnostic information pertaining to your sample submissions back to you more efficiently.

Upcoming Greenhouse Grower webinar

2010-03-12T10:06:00.002-07:00

Benchmarking: How Effectively Is YourTeam Performing? Join us for a free webinar on March 23 Space is limited.Reserve your webinar seat now at:https://www1.gotomeeting.com/register/210704024 Paul Thomas Charlie Hall Get a better handle on your bottom line profitability from the University of Georgia's Paul Thomas and Texas

It's not too late: CO Agriculture Big & Small Conference

2010-02-23T10:00:00.002-07:00

The Colorado Agriculture Big & Small Conference is this week! Thursday and Friday with a special Small Acreage day on Saturday!Don't miss my presentation on "Managing Diseases in Hoophouses & Greenhouses" Friday at 10am!This is THE conference for sustainable agriculture in the state. View the full program here. This year the conference is being held in Adams County, so if you want a tour of the

In case you missed ProGreen 2010...

2010-02-22T22:03:00.004-07:00

Here is a link to the talk that Keith Funk (Gard'n-Wise Distributors, Inc.) and I gave on diseases of annuals and houseplants. Geared toward garden centers, there are photos of the most common diseases and management options.Diseases Of Houseplants And AnnualsView more presentations from bedmunds.

Local produce tops on national chef's survey!

2009-12-10T19:00:00.004-07:00

Check out this post from a colleague in North Carolina: Results of the 2010 national chefs survey!It's looking good for Colorado greenhouse growers interested in producing for local markets!

Japanese Beetle Quarantine in place Jan. 2010

2009-12-02T10:53:00.003-07:00

For a summary of the new Colorado quarantine against Japanese Beetle, please click here. This quarantine affects the following plants and plant products brought into Colorado from states that are under quarantine:SodSoil, compost, and manureAll rooted plants in containers or with root balls greater than 12 inches in diameterAll ornamental grasses and sedgesBulbs, corms, tubers, and rhizomes of

Rule changes approved for the CO Nursery Act

2009-12-02T10:48:00.002-07:00

Two rules changes to the CO Nursery act have been approved. These rules increase the state registration fee by $10 and require keeping records of plants brought in from out of state. If you're a nursery owner, please take note and check out the details.

CSU Speciality Crops Program Request for Proposals

2009-11-06T17:50:00.002-07:00

Great opportunity for small growers in Colorado! If you want to brainstorm project ideas-feel free to call or email: Brooke Edmunds, 303-637-8016 brooke.edmunds @ colostate.edu--------Grower Research and Education Grants Available! The Specialty Crops Program at Colorado State University is accepting applications for grower research and education grants for the 2010 production

Upcoming Greenhouse Workshop

2009-10-19T11:55:00.006-06:00

Front Range Greenhouse IPM Workshop:Viruses Affecting ProductionTwo locations: Dec. 3rd 9-12pm: Gulley Greenhouse & Garden Center 6029 S. Shields, Fort CollinsORDec. 8th, 9-12pm: Center Greenhouse, 1550 E. 73rd Ave, DenverWho should attend: Greenhouse growers and pest management staff Topics to be covered : Identifying and managing common viruses affecting production stock in

The Pour-Through Extraction Procedure: A Nutrient Management Technique for Nurseries

2009-09-21T13:08:00.006-06:00

As part of your quality control and fertilization program, nurseries should regularly check the pH and EC (electrical conductivity) of stock grown in pots. Knowing these numbers helps you diagnose the level and availability of nutrients to the plants. You can save money by fertilizing as needed rather than on set schedule. NCSU has just released a new publication which outlines the steps of the

Chrysanthemum white rust webinar

2009-08-08T10:15:00.001-06:00

The Society of American Florists is hosting a free 30 minute webinar on chrysanthemum white rust. Learn to identify the signs and symptoms of white rust and how to protect your mum crop.The webinar is offered on August 11th, 13th, and 18th at 10am and 2pm (EST). For more information and to register, click here.

Online Plant Propagation Course

2009-08-05T11:31:00.004-06:00

Cornell University is offering an online plant propagation course this fall (it runs Sept 21-Nov 14). Along with online instruction, they will send you a complete kit for practicing propagation at home-including seeds and live cuttings! The cost is $350 and all the details can be found here.Would you like to see CSU offer a distance education course in plant propagation?YesNo pollcode.com free

CSU Speciality Crops Field Day Aug 17th

2009-08-04T17:13:00.003-06:00

2009 CSU – Specialty Crops program Rocky Mountain Small Organic Farm Project Field Day August 17, 2009 1:00 – 4:00 pm Topics: Small scale organic vegetable production systems for Colorado producers. High tunnels: Tomato, pepper, cucumber cultivar trials. Winter greens production. Hay bale culture of strawberries. Challenges of growing blueberries in Colorado. Field

New book available-Diseases of Herbaceous Perennials

2009-06-16T13:13:00.004-06:00

There is a new book available through APS Press titled 'Diseases of Herbaceous Perennials'. The authors are all plant pathologists and include Mark Gleason (Iowa State University), Margery Daughtrey (Cornell University), Ann Chase (Chase Horticultural Research), Gary Moorman (Penn State University) and Darren Mueller (Iowa State University).The book is full of over 700 color photos and would be

May 2009 Samples Received in Diagnostic Lab

2009-06-01T11:09:00.002-06:00

Host -> Problem DiagnosisPepper transplants -> Fusarium wiltPepper transplants ->Pythium root rotPepper transplants (organic) ->Rhizoctonia root rotSmooth Sumac ->Fusarium Root Rot (suspected)Sweet Woodruff ->Downy MildewTomatillo transplants->Bacterial Leaf Spot (Xanthomonas sp suspected)Tomato -> Nutrient imbalance (suspected)Tomato transplants -> phytotoxicity (suspected)Various perennials -

Information on new rainwater collection law in CO

2009-05-27T11:58:00.005-06:00

There is a new law coming into effect on July 1, 2009 which regulates the use of rain barrels to collect precipitation running off roofs. There has been some confusion as how exactly the water can be used. The Colorado Division of Water Resources has put together a pdf document outlining the new rules. In short: Here are the criteria, all of which must be met, for using rainwater:1. The

April 2009 samples from Adams Cty Plant Diagnostic Lab

2009-05-21T15:44:00.005-06:00

I'm going to start posting this list once a month. No pictures, just text so you know at a glance what problems we're seeing in the industry:Host->Problem diagnosisBigflower Coreopsis -> Tomato Spotted Wilt Virus (TSWV)Butterfly bush -> Environmental stress (undetermined-possible high salt level)Calibracoa (Million Bells) ->Tobacco Mosaic Virus (TMV)Gerber Daisy->Tobacco Mosaic Virus (TMV)

Downy Mildew on Sweet Woodruff (Galium odoratum)

2009-05-13T15:45:00.000-06:00

Downy mildew (caused by a species of the oomycete, Peronospora) on the herb/groundcover Sweet Woodruff (Galium odoratum) was found on a recent sample. At first glance the symptoms suggested iron deficiency (based on yellow foliage and other indications by the grower). However, a closer look shows leaf dieback and gray lesions which indicate a pathogen may be involved. Flipping the leaves over

Slug control in hoophouses

2009-05-12T16:15:00.003-06:00

Photo credit: hortipm.tamu.eduSlugs are mollusks that are closely related to snails, but without the shell. The common garden slug is 1/2 to 1 inch long depending on the age of the slug and brown or gray in color. Slugs can thrive in the hoophouse environment-their food source is close to the ground, there are many places to hide and take a good nap, and the humidity is just right.

Shine in '09 webinar series

2009-04-10T09:42:00.005-06:00

Texas AgriLife Extension Service has been sponsoring a series of three webinars around the topic of "High Performance Management to Survive Turbulent Times". There is one remaining open webinar coming up on May 12 titled: Marketing Green! If you're not familiar, a webinar is like attending a live seminar but everything is done on your computer using an internet connection. You will watch a

Point source pollution from greenhouses and nurseries

2009-04-08T16:26:00.004-06:00

Here is a link to an interesting article just published in the Journal of Extension titled, The Use of a Non-Point Source Pollution Self-Assessment for Greenhouse and Nursery Operators in California. Raises some good points on greenhouses conducting their own monitoring for excessive fertilization waste and other pollution source points coming from greenhouse and nursery operations. Want to