January 2002

Happy New Year!

There are slim-pickins but good, quality information in the newsletter this month because of the holiday break, which I enjoyed thoroughly. I hope you managed some warm, special family time. It is good that we do not have much for you to think about this month. Your focus and energy should be directed at packing your bags for the Gulf States Trade Show and Educational Seminars. I am excited! Great seafood (Diet resolution is already abandoned), great contacts, good friends, and an educational program that will make you mad because you can not be in every session. The hook here is to load a bus with your employees and declare an educational holiday. It is that good. Mike Dirr will be signing his new book and dazzling you with jewels of the plant world and Tom Shay will be sharing pearls of business wisdom in some room all day long. Of course the famous Drs. Tilt, Tatum and Owings from Auburn, Mississippi State and LSU will be there to make sure you are happy and to make some cameo appearances on the program. Thursday is the Big Day. I think you will find many speakers and topics that that will make the journey well worth your time and money. Of course, the now highly successful three state TRADE SHOW is an education in itself. Please pre-register. You do not want to be stuck in a registration line on Thursday morning when Mike Dirr begins his presentation.

I hope you will take time to find Auburnís booth while you are at the trade show. I think we will be out on the waterfront. We have not been assigned a space yet. I have the well-earned reputation of being a terrible booth-sitter but Bernice Fischman, who does the web page you are viewing will be there along with John Olive, Jimmy Stephenson and Chazz Hesselein from the Ornamental Horticulture Substation in Mobile. Come by and say hello and tell us how we can serve you better. We look forward to seeing you.

I need to put this in fine print but I would not be doing my job if I did not tell you that our northern neighbor, Tennessee, is having their trade show and educational seminars on January 19-21, 2002 at the Chattanooga Convention Center. I hate to admit it but they have an irresistible educational program too. Maybe you can declare 2 educational holidays and start the year off loaded down with great information to make you more money in 2002. Contact the TNA office (931-473-3951), Mark Halcomb (931-473-8484) or Dr. Stephen Garton (423-974-7324) for registration information.

These are some tough times in many parts of our economy but historically this is when our industry shines. I hope history is right. I am optimistic that it is going to be a great year.

The following articles are featured in this month's Something to Grow On:








DISCLAIMER: Please remember that all information presented is a summary of research and not an endorsement of any product or a recommendation of chemicals. The official labels from the manufacturing companies offer the legal and proper use and handling information for all products.


Wednesday, January 23:
Registration from 9 a.m. to 4 p.m.

Thursday, January 24:
Registration open from 7 a.m. - 5 p.m.
Educational Keynote Speakers from 8:30 a.m. - noon
Concurrent Educational Seminars from 1 to 5 p.m.
Welcome reception from 6:30 to 8:30 p.m.

Friday, January 25:
Membership meetings for Alabama, Louisiana and Mississippi associations
Registration open from 7 a.m. - 4:30 p.m.
Trade show open from 9 a.m. - 5 p.m.

Saturday, January 26:
Registration from 7:30 a.m. - 2:30 p.m.
Trade show open from 9 a.m. - 3 p.m.

Following is an abbreviated schedule for the January 24th Educational Seminars. For more detailed information go to The Gulf States Horticultural Expo page.

8:30 - 10 a.m.: DR. MICHAEL A. DIRR - "The Little Known Gardens of England
10:30 a.m. - noon: MR. TOM SHAY - "Retailers Don't Die, They Inadvertently Commit Suicide"

1 - 3 p.m.: MR. TOM SHAY - "Your Customer Doesn't Live Here Anymore"
2 - 3 p.m.: DR. KEN HOOD - "Marketing is More than Advertising"
4 - 5 p.m.: MR. NORMAN WINTER - "New Plants to Make You More Money"

1 - 3 p.m. - DR. DOUG FINDLEY: "Garden Themes for the Home Landscape"
3 - 4 p.m. - MR. ROBERT TRAWICK - "The Nuts and Bolts of Landscape Bidding"
4 - 5 p.m. - DR. ALLEN OWINGS - "2000/2001 Annual Bedding Plant Evaluations in the Landscape"

1 - 2 p.m. - DR. GARY KEEVER - "Hosta Production in the Deep South"
2 - 3 p.m. - DR. KEN TILT - "New Plants from the Orient"
3 - 4 p.m. - DR. MICHAEL DIRR - "Breeding and Selection of Superior Woody Plants for Southern Gardens"
4 - 5 p.m. - MR. TOM SHAY - "Making Flypaper Work in your Exhibit"

1 - 2 p.m. - DR. PAUL THOMAS - "Growing Fall Pansies"
2 - 3 p.m. - MR. BRIAN McCAFFREY - "Insect I.D....What to Look for and How to Save $$$$"
3 - 4 p.m. - MR. MARK J. ARENA - "Controlling Plant Growth with Plant Growth Regulators (PGR's)"
4 - 5 p.m. - DR. CHUCK POWELL - "Best Disease Control Practices"

1 - 3 p.m. - DR. FRANK HALE - "Field Identification and Control of Insect and Mite Pests"
3 - 5 p.m. - LEE BLOOMCAMP - "Turf and Ornamental Plant Diseases - Diagnosis, Prevention and Control"


Following are links to three Internet sites (with short reviews) that we think you will enjoy visiting:

This site on dogwood comes from the University of Tennessee Dogwood Research Group. They study and disseminate information about diseases, and the culture and breeding of dogwoods. There are research publications, announcements of new cultivars, meeting dates and other valuable information for the grower or dogwood enthusiast.

The Louisiana Cooperative Extension Service's website, Louisiana Lawn and Garden, is full of timely and standard information for gardeners and those in the green industry. Featured are weekly updates covering a wide spectrum of information published by Extension professionals. Horticulture Hints, their newsletter, is available on-line in PDF form. A Just for Kids section is being added. Articles are divided into Home and Commercial Horticulture sections.

University of Tennessee's Woody Plant Identification page is a tutorial for common names, botanical nomenclature, identification traits and uses for plants of East Tennessee. The site is very well designed with leaf photos, pronunciation of botanical names and even where the shrub or tree can be found on the University of Tennessee campus. You can take a quiz to see how much information you assimilated. Definite thumbs up for its clarity, brevity and thoroughness.


The following table, excerpted from the 2001 (Bulletin 43) Alabama Agricultural Statistics publication shows the amazing growth of horticulture crops since 1975. The numbers are in millions of dollars, indicating an almost eight-fold increase from 1975 to 2000. It is also interesting to note the steady decline of some other commodities.

Peanuts 101.7 68.4 133.9 104.8 139.2 120.1 71.6
HORTICULTURE CROPS*31.066.0114.2185.5179.2222.2230.0
*Greenhouse, Sod and Nursery


Below is a description of an on-line arboriculture course, Urban Tree Care, offered by Clemson University that will be taught by Judith D. Caldwell, Ph.D.

This course is structured to familiarize the student with the principles and practices of urban tree care throughout the life of a tree. Topics covered include tree biology, urban environment affects on trees, benefits and challenges of urban trees, tree selection and planting, soil management techniques, pruning and training, tree protection, conflicts in the landscape, hazard tree assessment, and tree removal. Urban forest management practices and concerns including tree inventories, tree ordinances, management plans, professional standards, as well as legal, political and community issues will be covered.

For Further Information Contact:
P.O.Box 912
Clemson, S.C. 29633-0912
Telephone: 864-656-4465 FAX: 864-656-0183
Toll-free number: 1-800-922-8316(within SC),


U.S. Nursery professionals are invited to participate in Celebrate USA Week at Floriade by going on a tour designed for nurserymen interested in learning about the Dutch nursery industry and gardening. The tour includes two days at Floriade, participation in the USA Week International Trade Conference at Floriade, professional tours to the flower auction and other exciting events.

The AmeriGarden landscape architect is Thomas Wirth of Thomas Wirth Associates Inc. (Massachusetts). To capture the diversity of American gardens he has named his design, "American Quilt Garden." Plants will be shipped under the guidance of Dr. Donna Fare. The Southern United States Trade Association (SUSTA) is the lead sponsor of the project. The ultimate goal of mounting such an impressive installation is to demonstrate to European buyers the desirability and suitability of American plants for European gardens.

For more information on the AmeriGarden go to www.amerigarden2002.com. If you would like to participate contact Kristin McGrath by phone at 808-961-6660 or email to info@amerigarden2002.com. Information about the tour can also be obtained from Kristin McGrath.


Auburn Plant Disease Report - November
Jackie Mullen
Extension Plant Pathology Specialist-Auburn

Fall continued to be very dry for much of November until the end of the month when welcomed rain arrived on two different occasions. Plant samples were more numerous than usual (We received 44 samples.), but most of the samples appeared to be related to environmental stress. Nine samples were diagnosed with infectious diseases.

Pythium root rot was diagnosed on American boxwood and holly. On woody ornamentals, Pythium root rot usually develops only on previously weakened plants in wet situations. The decay is typically confined to small feeder roots. This feeder root decay can slowly damage the plant and cause a slow dieback to develop. Control of Pythium requires removal of the wet conditions. Healthy, vigorous plants in well drained situations do not have problems with Pythium. Fungicide drenches are sometimes recommended in greenhouse and nursery situations.

Botryosphaeria cankers often occur on weakened plants. The cankers are typically sunken and cracked around the edges. Control requires removal of the cankered areas. Branches should be pruned off, making cuts 3-5 inches beyond the edge of the canker.

The powdery mildew on Leucothoe was severe with whole leaves appearing white on the upper leaf surfaces. With older infections, leaves become brown-black and necrotic. See the AL Pest Management Handbook for fungicide recommendations.

Cercosporella blight on Leyland cypress usually begins as a blight of the lower, inner foliage where humidity is higher. Needles turn brown and some needle drop will occur. This fungus has been called by three different names - Cercospora, Asperisporium, and Cercosporella, the most recent taxonomic name revision. Disease control usually involves protective sprays of Cleary's 3336. Some recent reports indicated that Kocide may be more effective.

Pansy diseases seen were anthracnose, and Phytophthora crown and root. Anthracnose appears as circular white spots. Tiny black specks, the fruiting bodies of the fungus, may be seen on the surface of the leaf spots. Disease control involves sanitation and protective fungicide sprays. See the Alabama Pest Management Handbook for fungicide recommendations. The Phytophthora crown and root rot is a common problem on pansy where conditions are wet. Infected tissues become brown and water-soaked such that the outer tissue layers easily slip away from the central cylinder of the root. Disease control involves sanitation (plant removal) and application of protective fungicide drenches (see AL Pest Management Handbook) to prevent disease spread. Replanting pansies in the damaged area is not a good idea unless root associated soil is removed and soils are not kept continually wet. Fungicides are usually recommended for commercial operations only, unless a landscape has an extensive planting of pansies.

2001 November Plant Diseases Seen In The Plant Diagnostic Lab at Auburn

Boxwood, AmericanMacrophoma Blight *
Boxwood, AmericanPythium Root Rot *
HollyPythium Root Rot *
Italian CypressBotryosphaeria CankerDallas
LeucothoePowdery Mildew *
Leyland CypressCercosporella Blight *
PansyAnthracnose (Colletotrichum)Montgomery
PansyPhytophthora Crown & Root RotMontgomery
St. AugustineTakeallPatch(Gaeumannomyces)Montgomery
*Counties are not reported for greenhouse and nursery samples.

Birmingham Plant Disease Report - November
Jim Jacobi
Extension Plant Pathology Specialist-Birmingham

Thirty-eight samples were received during November. The weather was warmer and drier than normal for most of the month. With the mild, dry weather, lacebugs and mites remained active throughout the month. Many of the pest problems including Shothole borers on Southern magnolia and yaupon holly, Botryodiplodia dieback on Southern magnolia, and Pestaliopsis tip blight on arborvitae were secondary to various stress factors. One of the magnolia samples had stem girdling caused by the failure to remove the strapping and the wire basket at planting. Always make sure that synthetic or plastic cord and strapping is removed prior to planting. These synthetic materials will not decompose and pose a significant threat to the long-term survival of the tree or shrub. Correct planting is one of the key steps to disease prevention. More planting tips are available in extension publication ANR-958, Care and Maintenance of Landscape Plants. The number of samples received in November decreased significantly due to the normal seasonal slowdown.

2000 November Diseases Seen in the Birmingham Plant Diagnostic Lab

Allspice (Pimenta dioica)RustJefferson
ArborvitaeHigh Soluble Salts, Spider Mites Pestalotiopsis Tip Blight.
AzaleaIron ChlorosisJefferson
AzaleaLacebugs (3)Jefferson
Boxwood Leaf MinerJefferson (2)
BoxwoodMacrophoma DiebackJefferson
BoxwoodPhytophthora Root RotJefferson (2)
Cypress, LeylandSeridium Canker, Spider MitesJefferson
Gardenia, DwarfPythium Root RotJefferson
Holly, YauponShothole BorerJefferson
Cherry Laurel 'Otto luyken'Eastern Red MiteJefferson
Cherry Laurel 'Otto luyken'White Peach ScaleJefferson(2)
LigustrumCercospora Leaf SpotJefferson
Magnolia, SouthernBotroydiplodia DiebackJefferson
Magnolia, SouthernShothole Borer (2)Jefferson
Oak, RedPowdery Mildew (Phyllactinia spp.)Jefferson
RoseChemical InjuryJefferson
Ryegrass, PerennialPythium BlightJefferson
St. AugustinegrassBrown PatchJefferson

Disease Possibilities for December

December is usually our month of least plant samples and most paper work catch-up as well as lab inventories and re-organization. Our usual December diseases include black rot (Xanthomonas campestris) and Cercospora or Cercosporella leaf spots on crucifers in the southern sections of the state. Also, Drechslera and/or Bipolaris leaf spots are seen on small grains and forages including oats, wheat, fescue, rye and also ryegrass. Of course, greenhouse plant diseases develop every month of the year.


January 8-11, 2002:
INLA P.L.A.N.T.S. 2002: Professional Landscape And Nursery Trade Show.
Indiana Convention Center and RCA Dome, Indianapolis, IN.
Contact: Paula L. Williams, Exec. Dir. INLA at 800-443-7336; 317-955-0628
Fax: 317-955-3163; e-mail inla@in-motion.net

January 12, 2002:
Garden Gurus IV
Paducah, KY.
Contact: Kathy Keeney at 270-554-9520; kkeeney@ca.uky.edu or Carolyn Roof, 270-554-4466 or gardener@paducah.com

January 16-18, 2002: Mid-AMTrade Show.
Navy Pier, Chicago, IL.
Contact: Rand Baldwin at 847-526-2010, Fax 847-526-3993, e-mail: mail@midam.org
URL: http://www.midam.org

January 19-21, 2002:
The Tennessee Nursery & Landscape Association Trade Show and Conference.
Chattanooga Convention Center, Chattanooga, TN.
Contact: TNLA at 931-473-3951, Fax 931-473-5883
e-mail: tnurseryassn@blomand.net
URL: http://www.tnla.com

January 21-23, 2002:
Central Environmental Nursery Trade Show ďCENTSĒ.
Greater Columbus Convention Center, Columbus, Ohio.
Contact: Bill Stalter, ONLA, at 800-825-5062, Fax 800-860-1713, e-mail onlagreen@aol.com
URL: http://www.onla.org

January 24-26, 2002:
Gulf States Horticultural Expo. Convention Center in Mobile, Alabama
For more information: phone 334-502-7777, fax 334-502-7777; alna@prodigy.net

January 31 - February 03, 2002:
ANLA Management Clinic.
Louisville, KY.
Contact: ANLA, 202-789-2900; Fax 202-789-1893
URL: http://www.alna.org

April to October, 2002:
Floriade 2002.
See the AmeriGarden (5,400 square feet), part of the world horticulture exhibition in the Netherlands.
For more information call 808-961-6660 or visit http://www.floriade.nl/ or http://www.amerigarden2002.com/

July 12 - 15, 2002:
ANLA Convention & Executive Learning Retreat.
San Diego, CA. Contact ANLA at 202-789-2900; Fax, 202-789-1893

August 1-4, 2002:
SNA 2002 - Southern Nursery Association Researcherís Conference and Trade Show
Georgia World Congress Center, Atlanta, GA.
Contact SNA at 770-953-3311; Fax 770-953-4411; SNA Infoline, 770-953-4636; e mail: mail@mail.sna.org
URL: http://www.sna.org

August 11-17, 2002:
American Society for Horticultural Science and XXVI International Horticultural Congress & Exhibition.
Metro Toronto Convention Centre, Toronto, Ontario, Canada.
Contact ASHS at 703-836-4606, Fax: 703-836-2024, E-mail: ashs@ashs.org
URL: http://www.ashs.org

September 29-October 2, 2002:
Eastern Region International Plant Propagators' Society NA and IPPS Southern Region NA Annual Meeting.
Hunt Valley (Baltimore), MD.
Contact Margot Bridgen at 26 Woodland Road, Storrs, CT 06268; 860-429-6818, E-mail: mbippser@neca.com or Dr. David L. Morgan, 332 Warbler Drive, Bedford, TX 76021; ph. 817-577-9272; e-mail, dleemorgan@msn.com

October 4-5, 2002:
Middle Tennessee Nursery Association Horticultural Trade Show.
McMinnville Civic Center, McMinnville, TN
phone: 931-668-7322; fax: 931-668-9601; e-mail: mtna@blomand.net,
http://www.mtna.com/ or http://www.southeasternnursery.com/mtna/

January 15-17, 2003:
Mid-AM Trade Show.
Navy Pier, Chicago, IL. Contact: Rand Baldwin at 847-526-2010, Fax 847-526-3993, e-mail mail@midam.org
URL: http://www.midam.org

January 30 - February 02, 2003:
ANLA Management Clinic.
Louisville, KY.
Contact ANLA at 202-789-2900; Fax, 202-789-1893
URL: http://www.anla.org

February 23-26, 2002:
Plasticulture 2002.
30th American Agricultural Plastics Congress
Contact ASP at 717-238-9762, Fax 717-239-9985, e-mail pheuser@calabreseheuser.org
URL: http://www.plasticulture.org

July 15 - 20, 2003:
ANLA Convention & Executive Learning Retreat.
Location TBA. Contact: ANLA, 202-789-2900; Fax, 202-789-1893.
URL: http://www.anla.org

July 30-August 2, 2003:
SNA 2003- Southern Nursery Association Researcherís Conference and Trade Show.
Georgia World Congress Center, Atlanta, GA.
Contact SNA at 770-953-3311; Fax 770-953-4411; SNA Infoline, 770-953-4636.

September 30 - October 4, 2003:
American Society for Horticultural Science Annual Meeting and 100th Anniversary.
Providence, RI.
Contact ASHS at 703-836-4606, Fax: 703-836-2024, E-mail: ashs@ashs.org
URL: http://www.ashs.org

October 3-4, 2003:
Middle Tennessee Nursery Association Horticultural Trade Show.
McMinnville Civic Center, McMinnville, TN
phone: 931-668-7322; fax: 931-668-9601; e-mail: mtna@blomand.net,
http://www.mtna.com/ or http://www.southeasternnursery.com/mtna/

October 5-8, 2003:
IPPS Southern Region NA.
San Antonio, TX.
Contact: Dr. David L. Morgan, 332 Warbler Drive, Bedford, TX 76021; phone 817-577-9272; e-mail, dleemorgan@msn.com

July 29 - 31, 2004:
SNA 2004 - Southern Nursery Association Researcherís Conference and Trade Show.
Georgia World Congress Center, Atlanta, GA.
Contact: SNA 770-953-3311; Fax 770-953-4411; SNA Infoline, 770-953-4636
URL: http://www.sna.org

October 1-2, 2004:
Middle Tennessee Nursery Association Horticultural Trade Show.
McMinnville Civic Center, McMinnville, TN
phone: 931-668-7322; fax: 931-668-9601; e-mail: mtna@blomand.net,
http://www.mtna.com/ or http://www.southeasternnursery.com/mtna/

October 3-6, 2004:
IPPS Southern Region NA
Greenville/Spartanburg, S.C.
Contact: Dr. David L. Morgan, 332 Warbler Drive, Bedford, TX 76021; phone 817-577-9272; e-mail, dleemorgan@msn.com

Send horticultural questions and comments to ktilt@acesag.auburn.edu.

Send questions and comments to bfischma@acesag.auburn.edu.

Letters to Bernice Fischman - 101 Funchess Hall - Auburn University, AL 36849.