Tuesday, August 26, 2008

East Texas Nursery and Greenhouse Conference

Join your fellow nursery and greenhouse growers for the 2008 East Texas Nursery and Greenhouse Conference on October 28th at the Harvey Convention Center in Tyler, TX. Again this year we will also be having a Hispanic Worker Conference. I hope that both of these conference will meet the pest management education needs of your greenhouse or nursery.

When:
October 28, 2008, 8 a.m.
Location: Harvey Convention Center, Tyler
Fee: $30 before October 24, $40 onsite
Registration: The registration is being handled by Texas AgriLife Extension Conference Services (click here to register). Payment can be made by check or credit card.
CEUs: 5 TDA CEUs (3 general, 1 IPM, 1 Law and Reg) - submitted for approval

Nursery and Greenhouse Conference

Pest management issues impacting nursery and greenhouse producers
Dr. Scott Ludwig, Texas AgriLife Extension Service

What's new in ornamental fungicides?
Dr. Mary Hausbeck, Michigan State University

Management of downy and powdery mildew
Dr. Mary Hausbeck, Michigan State University

Enhancing effectiveness of pest control by natural enemies & biological insecticides
Dr. Carlos Bográn, Texas AgriLife Extension Service

Hiring a legal workforce
Dr. Marco Palma, Texas AgriLife Extension Service

Update from the Texas Plant Disease Diagnostic Laboratory
Dr. Kevin Ong, Texas AgriLife Extension Service

Feral hog control: What is legal and what is not
Dr. Billy Higgenbotham, Texas AgriLife Extension Service


Hispanic Workers Conference

Principles of effective crop management I
Dr. Claudio Pasian, The Ohio State University

Principles of effective crop management II
Dr. Claudio Pasian, The Ohio State University

Sanitation and how to avoid and prevent pest/disease problems
Dr. Carlos Bográn, Texas AgriLife Extension Service

Detection and basic diagnosis of pests and diseases
Dr. Carlos Bográn, Texas AgriLife Extension Service

Safe and effective pesticide applications
Dr. Carlos Bográn, Texas AgriLife Extension Service

Tuesday, July 29, 2008

Chilli Thrips and Pink Hibiscus Mealybugs Invade Houston

Two insect pest species that made news last year because of their first appearance in Texas are causing serious problems for homeowners and landscapers in the Houston area. While these pests are currently in the landscape, they have the potential to move into production greenhouses and nurseries.

Populations of the pink hibiscus mealybug were recently confirmed in Brazoria, Galveston and Harris counties, triggering TV-news coverage and subsequent reports from homeowners in a number of areas in Houston. The Texas Department of Agriculture, after confirming the pink hibiscus mealybug infestations, have initiated surveys of surrounding areas and will be making releases of natural enemies. Biological control has provided excellent control in Florida and will likely be the long term solution in Texas. Using reduced risks insecticides such as insecticidal soaps and oils, in combination with good sanitation practices should help homeowners minimize plant losses and facilitate establishment of released natural enemies.

A large population of chilli thrips was also detected recently in Houston. A survey was conducted of the entire Medical Center complex and chilli thrips or signs of chilli thrips were found at every rose bed. Chilli thrips were also found on other roses outside the Medical Center. The actual distribution of the infestation is currently unknown.

It is important to remember that chilli thrips attack more than just roses. They can attack a wide range of landscape plants, horticulture crops and row crops.

For the most up to date information on chilli thrips in Texas visit http://chillithrips.tamu.edu/. I will be updating the site this weekend. New information should be posted by August 5th.

Monday, July 14, 2008

NTNGA Memorial Greenhouse Ribbon Cutting

On July 10th, eighty growers and AgriLife faculty attend the ribbon cutting for the NTNGA Memorial Greenhouse. I would like to thank the Northeast Texas Nursery Growers Association for their support and hard work to make the greenhouse a reality.

This project was made possible through support from the following sponsors (as of 7/14/08):

Financial Contributions by:
  • Bruce Miller Nursery and Farm
  • Chitty Wholesale Nursery
  • Circle G NurseryEstes, Inc
  • Kimbrew-Walter Roses, Inc.
  • Landmark Wholesale Nurseries
  • The LETCO Group LLC
  • Northeast Texas Nursery Growers Association
  • OHP, Inc
  • Ran Pro Farms
  • Texas Nursery and Landscape Association, Region 3
  • Tru-Liner Nursery Company
  • Helena Chemical
  • Troy & Mary Moser, in memory of Doug Burrows
Equipment Donated by:
  • Dosmatic U.S.A., Inc. (Injectors)
  • Dramm Corporation (Hoses, watering wands, etc)
  • Kinney Bonded Warehouse, Inc. (Reduced greenhouse price)
  • Texas IPM Program (Benches, utility pole, and horizontal airflow fans)
  • East Texas Nursery & Greenhouse Program (Installation of water, electricity, & natural gas)
If you are interested in helping sponsor the NTNGA Memorial Greenhouse project, please email Jade Hopson at Circle G Nursery, or phone her at (903) 963-5255.

The following press release was issued on July 14th by Robert Burns of the Texas A&M Agriculture Program. An audio clip is also available.

New Greenhouse Will Concentrate on More Environmentally Friendly Insect Controls

A new greenhou
se largely funded by the Texas nursery plant industry will research ways to reduce chemical use and increase biological control of insect and other pests, said Texas AgriLife Extension Service experts.

The greenhouse, which was built on the grounds of the Texas AgriLife Research and Extension Center at Overton, was dedicated to industry leaders in a brief ceremony July 10. Attendees included commercial nursery owners and their families, and faculty from AgriLife Extension and Texas AgriLife Research.

"The greenhouse will be used to conduct research on integrated pest management techniques to support the East Texas bedding plant and nursery industry," said Dr. Scott Ludwig, AgrLife Extension entomologist and integrated pest management specialist based at Overton.

Integrated pest management, commonly known as " IPM," strives to use less chemical pesticides by correct timing of applications, pest identification and biological controls.

In Smith, Cherokee, Henderson and Van Zandt counties, the industry has wholesale gate receipts of $300 million, with a proportionally larger total economic impact on the region, Ludwig said.

As the Northeast Texas Greenhouse and Nursery Growers have members as far west as Dallas who will benefit from the work done at the greenhouse, the economic impact is even larger, said Dr. Roland Smith, associate director of AgriLife Extension.

The greenhouse and nursery industry is big business in Texas agriculture, ranking third in terms of cash receipts behind only beef cattle and cotton, Smith said.

"In 2007, the Northeast Texas Greenhouse and Nursery Growers were responsible for about three quarters of a billion dollars of cash receipts for their industry," Smith said. "This amounts to about 40 percent of the state’s total of greenhouse and nursery output."

The greenhouse was funded by the Northeast Texas Nursery Growers Association Memorial fund, which members started to honor association members who have passed away, said James Wilhite, owner of Wilhite Landscaping and Lawn Care, Tyler.

"Each time there is a benefit from this experimental greenhouse, we’ll remember the friends that have passed on before us that have made the nursery and landscape industry such a pleasurable place to work," Wilhite said.

One of those remembered will be Floyd Trammel, owner of Tram Tex Nursery Incorporated in Tyler. Trammel, who was one of the founding members of the Northeast Texas Nursery Growers Association, died in November 2007.

"We’ve lost several of our fellow nurserymen last year, along with my father, said Cyndi Trammel, who now manages Tram Tex.

"Our nursery is doing very well and being very successful because we have places like this that will do the testing for us," Trammel said. "As you can imagine running a full-time growing operation, it would be very difficult for us to set up a lab like this and be able to run the tests and do them effectively."

Trammel said she favors using environmental pest controls whenever possible because they're safer for workers to use.

Ludwig said the research will benefit growers statewide. "As the public demand for organic and sustainable-produced plants increase, it is important that growers have the know-how to meet the needs of the market," Ludwig said. "This facility will enable AgriLife Extension to conduct research that will aid growers to produce healthier plants for landscapes and homes."



Friday, June 20, 2008

NTNGA Memorial Greenhouse


The Northeast Texas Nursery Growers Association has established the NTNGA Memorial Fund. The mission of the NTNGA Memorial Fund is to promote the nursery industry, provide the most up to date and relevant information to our members, and to assist in the establishment and ongoing work of programs that provide our members with vital information. The first project the fund is supporting is the construction of NTNGA Memorial Greenhouse at the Texas AgriLife Research and Extension Center at Overton to provide the industry with vital research needed to support their industry.

This project was made possible through support from the following sponsors (as of 6/20/08):

Financial Contributions
Bruce Miller Nursery and Farm
Circle G Nursery
Kimbrew-Walter Roses, Inc.
Landmark Wholesale Nurseries
Northeast Texas Nursery Growers Association
OHP, Inc
Texas Nursery and Landscape Association, Region 3
Tru-Liner Nursery Company

Equipment Donated by:
Dosmatic U.S.A., Inc. (Injectors)
Dramm Corporation (Hoses, watering wands, etc)
Kinney Bonded Warehouse, Inc. (Reduced greenhouse price)
Texas IPM Program (Benches - partial)

If you are interested in helping sponsor the NTNGA Memorial Greenhouse project, please contact Jade Hopson at Circle G Nursery (jadehopson@sbcglobal.net) or (903) 963-5255.

For more information on the NTNGA Memorial Greenhouse and follow its construction visit http://etipm.tamu.edu/greenhouse.cfm.

Saturday, June 14, 2008

New Scale on Croton

This spring a never described species of soft scale was discovered on crotons in Florida. The scale was first found on April 9th at a nursery in Marathon, FL. Since that time it has been found in 11 Florida counties.

Why is this important to Texas growers? Most crotons sold in Texas started off as liners in Florida. Although the scale have not been found in Texas, this is another example of the importance of properly inspecting liners, plugs, and any other plant material you bring into your facility.

For more information on this new scale species see the Florida DPI Pest Alert at
http://www.doacs.state.fl.us/pi/enpp/ento/coccoidea_coccidae.html.

Photograph credit: Lyle Buss, University of Florida

Thursday, June 5, 2008

Southwest Growers Conference

This years Southwest Growers Conference will be held in Conroe, TX on July 8-9, 2008. Meeting and registration information information is available on the conference website (http://swgrowers.tamu.edu).

On Tuesday, July 8, there will be tours to four innovative nursery/greenhouse operations.

On Wednesday, July 9, there will be a full day of timely educational sessions at the Lone Star Exposition Center. Two morning sessions will focus on the practical and economic applications of environmental sustainability. Afterwards, a session on hiring a legal work force will cap off the morning program. In the afternoon, there will be sessions on water quality and alkalinity, controlling new insect and disease pests, the use of PGR's, reducing weed control costs, and a laws/regs session to cap off the day. TDA Certified Pest Applicator CEU credits as well as TNLA CEU credits will be available.

Wednesday, May 28, 2008

Texas Chilli Thrips Update

There has been a lot of questions and concerns regarding chilli thrips over the last year. I thought this would be a good time to provide an update. The good news is that we have only been able to confirm one infestation in Texas. Last fall a homeowner in Houston submitted a sample from plants in her yard that were being damage. It turned out that the damage was caused by chilli thrips. The unusual damage caused by this thrips to the plant's foliage is the easiest methods to detect this pest (see photo).

There are no indications that any greenhouse or nursery producers in Texas are infested. One of the most important ways of keeping your facility clean is to properly inspect all incoming plant material.

If there is any good news about this pest, it is that at this time there appears to be a number of insecticides that will kill it. Almost any insecticide that is label for thrips control will kill chilli thrips. Abamectin, chlorfenapyr, pyridalyl, spinosad and systemic insecticides (acephate, acetamiprid, clothianadin, dinotefuran, imidacloprid, thiamethoxam) applied as a foliar sprays have been shown to be effective in efficacy testing.

For more information on chilli thrips in Texas visit http://chillithrips.tamu.edu/.

Thursday, May 15, 2008

Excluding Weed Seed from Containers

Weed management often suffers when there is a labor shortage. Good cultural and sanitation practices will reduce the number of weed seeds infesting containers and increase herbicide effectiveness in preventing weed germination and development.

The goal of a successful weed management program is to prevent weeds from germinating and competing with the crop by using a combination of cultural and chemical control tactics within an integrated management approach.

Weed free growing areas can be created with a good drainage system, gravel, concrete, weed-barrier (geotextile) or other organic or inorganic mulch. Exclude weeds by using weed-free growing substrates and preventing establishment of seeds carried by wind, irrigation water, equipment and tools. Cover stored substrate materials to prevent weed contamination. Substrates harboring weed seeds may be treated with heat or chemicals before use. Install and maintain filters or treat recycled and surface irrigation water to eliminate seeds. Clean plant debris and spilled potting-mix and avoid excess irrigation and standing water. All of these create habitat and favorable conditions for many weed species. Some weeds can germinate and grow in container drainage holes and directly compete with the plant for water and nutrients.

Maintaining weed-free non-crop areas is probably the easiest and the most effective sanitary practice for reducing weed seed numbers in your containers. Many weeds can project seeds over a large area (bittercress and oxalis); it is important to keep these plants from establishing in and around growing beds. Regular mowing of roadways, drainage ditches, areas between nursery beds, etc., will drastically reduce weed seed number and improve weed control.

Herbicides provide an effective means of managing weed in hard to mow locations. Post-emergence herbicides can be used to eliminate existing weeds and pre-emergence herbicides used to prevent weed germination and re-growth. Water quality and quantity may affect herbicide effectiveness. High water pH and dissolved organic compounds may reduce herbicide performance. Avoid herbicide leaching and runoff by limiting irrigation water after herbicide applications. Always read and follow directions on pesticide labels.

Thursday, May 8, 2008

Western Flower Thrips

Western flower thrips are out in full force. If you have sensitive crops it is important not to let your thrips population get out of hand.

Growers were provided a brief relief from western flower thrips when Conserve SC was labeled for ornamental crops. Unfortunately, there are cases being reported of western flower thrips not responding to Conserve label rate applications.

This developing tolerance may be a result of some growers not following the label instructions. The Conserve SC label states “no more than three consecutive applications should be used, nor should there be continuous use for more than 30 days. Consider rotating to a different active ingredient with a different mode of action or use no treatment for the next generation" and "Regardless of the crop or pest being treated (excluding leafminers, spider mites and/or diamondback moths), do not apply Conserve SC more than 10 times in a 12-month period inside a greenhouse or a structure that can be altered to be closed or open”.

Due to the intense nearly year-round thrips pressure some growers face, they are exceeding the three consecutive applications and the 10 total applications per year. One common mistake growers make is applying Conserve repeatedly for thrips and then again for caterpillars, mites, or leafminers. This causes them to exceed the number of total applications that can be made in a year. It is critical to follow the label instructions to reduce the development of resistance in western flower thrips to Conserve.

The recent labeling of Pylon for western flower thrips control provides greenhouse growers (not labeled for outdoor use) a highly effective rotation partner to use with Conserve. As with Conserve it is important to follow the resistance management component of the Pylon label to lengthen the period of efficacy of this product for thrips management.

There are a number of other insecticides that can be used in rotation for thrips management. These include, but are not limited to, Avid, Azain XL, BotaniGard, Enstar II, Pedestal, Mesurol and Orthene.

I am currently working on a project to monitor the tolerance level of western flower thrips to Conserve in East Texas. I will report more on this when the project is completed.

Tuesday, May 6, 2008

Welcome!

Blogging is new to me.  I am hoping that this "new" technology will be an easy method for greenhouse and nursery growers to receive current pest management information.  If you would like updates sent directly to your email enter your email address in the appropriate box at the right of this page.

This blog will enable me to communicate advances in greenhouse and ornamental IPM, provide meeting information, and distribute efficacy study results and newsletters.

If you are a nursery or greenhouse producer in East Texas, or anywhere else, I hope that you will subscribe to this blog to stay ahead of those pesky insects, mites, weeds, and diseases.