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New Video – Systems-based Pest Management: Potting Practices

This video demonstrates how nursery crop producers can apply a systems-based pest management approach to potting practices. The video provides an overview of practical ways producers can stop the spread of pathogens, pests, and weed seeds that can otherwise be transferred to healthy plants through potting substrate and containers, especially used containers. Funding for this video was provided by the Southern Risk Management Education Center, the University of Tennessee Institute of Agriculture, and the UT Department of Plant Sciences. Narrated by Ms. Haylee Jones, produced by Ms. Halee Jones and Dr. Diana Cochran with assistance from Dr. Amy Fulcher.

Link to video here.

New Video – Systems-based Pest Management: Pruning Practices

This video demonstrates how nursery crop producers can apply a systems-based pest management approach to pruning practices. The video provides an overview of practical ways producers can stop the spread of pathogens that can otherwise be transferred to healthy plants during pruning. Funding for this video was provided by the Southern Risk Management Education Center, the University of Tennessee Institute of Agriculture, and the UT Department of Plant Sciences. Narrated by Ms. Haylee Jones, produced by Ms. Halee Jones and Dr. Diana Cochran with assistance from Dr. Amy Fulcher.

Link to video here.

Invasive species alert (Georgia) – Brazilian Pepper

Brazilian Pepper has been found in Georgia! This is the first known reporting of this species in the state. The Coastal Georgia CISMA’s SCA intern Gabby Phillips discovered the plant on the entrance to the Jekyll Island Causeway last week. See our EDDMapS record for pictures http://www.eddmaps.org/distribution/point.cfm?id=3215822. Attached is an info sheet if you are unfamiliar with this species. We will be treating the site this Thursday with the Jekyll Island Authority and the Georgia Forestry Commission.  Now that it is in Georgia we will be ramping up detection of this species so be on the lookout for it.

 

Eamonn Leonard

Natural Resources Biologist

GA DNR Nongame Conserv. Sec.

Boxwood blight found in GA – Disease Alert

This past week I confirmed GA’s first case of Boxwood blight in a residential landscape in the Buckhead area of Atlanta. I then visited a second Buckhead site and it too had boxwood blight.

 

Boxwood blight is not a federal or state regulated disease. It is however, a very devastating disease for landscapers and boxwood growers. The disease spreads quickly and easily. It is often introduced into nurseries and landscapes on infected plants; however, in one of the infected sites, the disease cannot be traced back to an introduced plant. The landscape was likely infected by workers pruning boxwoods or installing annual flowers within the landscape bed. This means that there are likely other landscapes that are infected that we don’t know about yet. The second landscape consisted of field- and container-grown plants originating from NC that were transplanted within the past two months. Almost all of the plants (100+) showed symptoms to some extent.

 

Also, last week infected boxwoods originating from Monrovia Nursery in Oregon were found in a retail garden center in Chattanooga, TN. All but 25 plants were recovered from that location. It is likely that some of these plants or other shipments from the same nursery have ended up in GA. As of yet, we have not found boxwood blight in any commercial production nursery in the state.

 

I wrote a disease alert/fact sheet for the industry on boxwood blight. You can access it here: http://plantpath.caes.uga.edu/extension/extension/documents/GABoxwoodBlightAlertv1.pdf

 

Be extra cautious about boxwood samples. We have seen a lot of dieback in boxwood across the state from winter injury, Phytophthora root disease, and Volutella blight. Boxwood blight symptoms usually develop rapidly. Leaf spots can develop within days of inoculation progressing to blackening of the stems, foliage death, and leaf drop within two weeks. However, much of the state has been dry and the disease progression within the Atlanta landscapes has been slower. Moisture is the key. If we enter into a period of late afternoon thunderstorms and high humidity, disease progression will be quicker.

 

There is no control for this disease other than removal of infected plants and strict sanitation to reduce disease spread. Fungicides are only preventative. They are ineffective in controlling the disease once present.

Nursery IPM Workshop – Quincy FL – June 10-11 – FL & GA CEUs Available

The Southern Nursery IPM Working Group Presents

Nursery IPM Workshop

University of Florida

North Florida Research and Education Center

May Building Seminar Room and On-site Outdoor Nursery Facilities

155 Research Road Quincy, Florida 32351

June 10-11, 2014

Don’t miss this hands-on, 2-day workshop focused on integrated pest management (IPM) for nursery crops! Learn how to save resources, reduce pest damage and pesticide use, and create a safer working environment for employees, all while earning 13 FL pesticide CEUs and 9 GA pesticide CEUs plus FNGLA CEUs!

You will learn to identify major pests, plant diseases, and weeds using live samples, lectures, and images. Horticulturists, plant pathologists, entomologists, and weed scientists – – from major universities across the southeastern U.S. – – will teach you about some of the latest technologies to prevent pests and use your smart phone as a pest scouting device. Attendees will receive a free copy of IPM Pro, a mobile device app for IPM in ornamental crops, as well as many printed reference materials. In-depth and focused on IPM in ornamentals, this workshop is one of kind and well worth your time!

Registration is only $15 (free for GA/FL Cooperative Extension Agents) but you must pre-register to participate; no walk-ins allowed! To register, go to https://ncnla.wufoo.com/forms/ipm-2day-workshop-quincy-fl-june-1011-2014/

Agenda

Tuesday June 10

08:30 AM – 09:00 AM             Sign in, complete pre-test, coffee and snacks – May Bldg. Seminar Room

09:00 AM – 09:30 AM             Overview of the Nursery IPM Workshop (Gary Knox, UF North Florida Research and Education Center, and Anthony Lebude, NC State University)

09:30 AM – 10:20 AM             IPM Concepts of Host Plant Resistance and Examples(Gary Knox, UF North Florida Research and Education Center)

10:20 AM – 10:45 AM             Break

10:45 AM – 11:30 AM             Measuring Physical Properties of Substrates (Anthony LeBude, NC State University)

11:30 AM – 12:00 PM              IPM Pro: A Smartphone App to Help Manage Nursery Pests (Anthony LeBude, NC State University)

12:00 PM – 1:00 PM                Lunch

1:00 PM – 2:40 PM                  Concepts of Arthropod Pest Management: Arthropod Types/Life Cycles, Scouting, Biocontrols, Cultural Controls, Plant Phenology Indicators, Pesticide Classifications, Pesticide Application and other Management Methods (Kris Braman, University of Georgia, and JC Chong, Clemson University)

2:40 PM – 3:00 PM                  Break

3:00 PM – 4:40 PM                  Outdoor Hands-on Practicum on Scouting Techniques, Life Stage Identification, Pesticide Application, Biocontrols and Cultural Controls (Kris Braman, University of Georgia, and JC Chong, Clemson University)

4:40 PM – 5:00 PM                  CEUs for the Day and Preview of Tomorrow’s Program (Gary Knox, UF North Florida Research and Education Center)

 

Wednesday, June 11

8:00 AM – 9:40 AM                 Concepts of Disease Management: Disease Organisms/Life Cycles, Disease Triangle, Predictive Tools, Cultural Controls, Fungicide Classifications, Fungicide Application and other Management Methods (Nicole Ward, University of Kentucky, Jean Williams-Woodward, University of Georgia)

9:40 AM – 10:00 AM               Break

10:00 AM – 12:00 PM              Outdoor Hands-on Practicum on Scouting Techniques, Disease Identification, Cultural Controls, Fungicide Application and Other Management Methods (Nicole Ward, University of Kentucky, Jean Williams-Woodward, University of Georgia)

12:00 PM – 1:00 PM                Lunch

1:00 PM – 2:40 PM                  Concepts of Weed Management: Weed Life Cycles, Identification of Grass-Broadleaf-Sedge Weeds, Cultural Controls, Preemergence Herbicide Selection, Nursery Crop Tolerances and Management Resources (Jeff Derr, Virginia Tech)

2:40 PM – 3:00 PM                  Break

3:00 PM – 4:40 PM                  Outdoor Hands-on Practicum on Scouting Techniques, Identification of Grass-Broadleaf-Sedge Weeds, Herbicide Application Methods and Cultural Controls (Jeff Derr, Virginia Tech)

4:40 PM – 5:00 PM                  Program Evaluation and CEUs for the Day (Gary Knox, UF North Florida Research and Education Center)

 

Free Webinar – Pathogen Risk Mitigation through System Design and Using Precision Irrigation Tools

Webinar Presentation

Pathogen Risk Mitigation through System Design and Using Precision Irrigation Tools

Tuesday, 3 June, 2014
Noon to 1:00 pm (Eastern)
To participate in this webinar, please go to https://connect.extension.iastate.edu/irrigation-water/
and dial 1-888-619-1583 then enter pass code: 491981

Presenter: Dr. John Lea-Cox, Professor and Nursery Extension Specialist Department of Plant Science and Landscape Architecture, University of Maryland

Summary: The use of recycled water from containment ponds or structures is an integral part of the sustainability of container-nursery and greenhouse production systems, even in those areas of the US which receive adequate rainfall. The capacity of containment structures is influenced by how much water can be captured and replenished from rainfall, groundwater or other sources. We need to therefore understand how we can firstly conserve water by scheduling daily irrigations to not only optimize plant growth, but reduce runoff and create drier, more antagonistic environments for pathogens within production areas. We don’t typically make very good decisions in estimating daily plant water use, especially in intensive nursery and greenhouse production environments, because of the diversity of crop species that are grown. We have developed advanced irrigation tools that allow growers to not only better estimate daily crop water use, but use those tools to automatically schedule and apply irrigations only when necessary. This seminar will cover the basics of good system design, and illustrate some of the advanced tools we are using to halve irrigation water applications, reduce runoff and create drier environments that increase plant growth while reducing disease incidence.

 

Friends of Southern IPM Bright Idea Award

The Friends of Southern IPM Bright Idea award goes to the Southern Nursery IPM Working Group (SNIPM) for their development of mobile information technology in the green industry. In particular, the group has developed two applications: a mobile app called IPMPro and an e-book, IPM for Select Deciduous Trees in Southeastern US Nursery Production.

IPMPro is an app designed to encourage scouting by alerting growers to emerging pests. According to surveys, nursery growers typically discover pests while performing other tasks and then spray. With a text alert on their phone that warns then of upcoming key pests, growers can catch early pest populations before they have had a chance to do significant damage. The e-book IPM for Select Deciduous Trees is an innovative interactive book in multimedia format that has increased savings or earnings for growers by an average of $3,313 per book due to reduced pesticide use and more effective pesticide applications.

http://ipmsouth.com/2014/03/12/2014-friends-of-southern-ipm-winners/#more-1249

UGA Extension Plant Pathology Report for October

The Extension Plant Pathology for October is now available and has been posted here:

http://plantpath.caes.uga.edu/extension/documents/ExtensionPlantPathologyUpdate_October2013.pdf

The October issue contains:
  • Disease clinic report for September 2013
  • Table of samples diagnosed a year ago in November 2012
  • Anthracnose on pepper alert
  • Vegetable spray guides and efficacy tables are posted online
  • Dollar spot is still active
  • Yellow bentgrass
  • Bipolaris leaf spot on bermudagrass
  • Summary of fungicides recently registered for ornamental disease control
  • Rosellinia needle blight on hemlock
Past Extension Plant Pathology Updates are archived here: http://plantpath.caes.uga.edu/extension/ExtensionPlantPathologyUpdates.html
I hope you find this information useful. Comments, questions, and/or ideas for improvement are always welcome.