Making the proper variety selection is critical to maximize profit potential. Variety selec-tion may be the single most important decision you make. No two farms are alike. There are differences in production practices, soil types and climatic conditions just to name a few. You should plan to plant more than one variety. This will help reduce the risk associated with these conditions and weather. For these reasons, it is important to gather as much data as possible before deciding which varieties to plant.

Begin with data from your area and of similar production conditions, this should include Commercial Variety Trials from Research Stations, Extension demonstrations and/or company trials. If you are unable to find information that matches your production, look for varieties that consistently outperform others when averaged across locations. A proven variety is one that performs well in a wide range of conditions, soil types, and locations.

LOUISIANA – “SELECTS”

Louisiana – “Selects” is a listing of top performing varieties in Louisiana. It was based on Commercial Variety Trials and Extension Demonstrations.

Volume 1 , Issue 10A Ins ide this issue:

Soybean Variety

Selection for 2011.

1

Soybean insect Survey 2

FYI-LAIA convention 2

2011 Soybean Variety Yields And Production Practices

3

Tolerance of Eight MG IV and V

Soybean Varieties to Metribuzin

19

Tri-State Soybean Fo-rum

21

AgCenter Contacts 13

L OUISIANA CROPS NEWSLETTER

Soybeans

Issue Contr ibutors

(a lphabet ica l l y)

Dustin Harrell

B. Rogers Leonard

Donnie Miller

Donna Morgan

Daniel Stephenson

Jay Stevens

Bobby Golden

Don Boquet

Brooks Blanche

Ronnie Levy

Theophilus Udeigwe

Boyd Padgett

Sonny Viator

SOYBEAN VARIETY SELECTION for 2011

Dr. Ron Levy

Soybean MG3 -

Early MG4

Soybean Late MG4 Soybean MG5

Armor 42-M1

Progeny P4209RY

Dyna-Gro 36C44

S44-D5 Brand

Pioneer 94Y40

Terral REV 44R22

Delta King DKR 4440

Delta Grow 4470RR

Croplan 4455

Asgrow EXP944R2

Morsoy Xtra 46X29

MorSoy RTS 4824

Asgrow AG4605

HBK R4829

Progeny P4510RY

Terral REV 48R10

Asgrow EXP948R2

Terral REV 49R22

Delta Grow 4880RR

Dyna Gro 33G48

Progeny P4710RY

Pioneer 94Y80

Progeny P4908RR

HBK R4924

Schillinger 478.RCS

Delta Grow 4975RR

Terral TV59R16

Asgrow AG5606

Terral TV55R20

MorSoy RT 5688N

S05-11482

Croplan 5419

Terral TV55R15

MorSoy RT 5388N

AGS 597 RR

Dyna-Gro 35F55

Delta Grow 5555RR

HBK RY5820

Terral REV 57R21

Pioneer 95Y40

There are many sources of information that can be accessed to view variety/hybrid per-formance. Contact your local Extension office or the LSU AgCenter website.

Page 2 Volume 1 , Issue 10A

Soybean Insect Survey

Dr. Rogers Leonards would like for you to complete the following survey. Three years ago many of you were participated in a multi–state survey related to soybean insects. Producers in Arkansas, Louisiana, and Texas provided important information on their approaches to soybean insect con-

trol. This follow-up survey only takes a few minutes to complete and will provide valuable informa-tion to researchers working on soybean insect control.

www.surveymonkey.com/s/VW3JFSD

Please take a few minutes to complete this

important soybean insect survey.

February 3-4th, 2011

Louisiana Ag Industries Association (LAIA) An-nual Convention, Paragon Casino & Resort, Marksville, LA. Members and representatives from the seed, fertilizer, chemical, grain, and feed industries are invited to attend this annual meet-ing which will be held at the Paragon Casino Re-sort in Marksville. This meeting is open to any and all producers, consultants, industry repre-sentatives, and LSU AgCenter personnel. For more information, please contact Donna Morgan at 318.229.9955 or dsmorgan1@suddenlink.net

Are There Errors in the Louisiana Crops Newsletter?

Would you like to receive our Newsletter?

Let us know!

Contact

Brandi Woolam

BWoolam@agcenter.lsu.edu

Dr. john Kruse

JKruse@agcenter.lsu.edu

Dr. Ronnie Levy

RLevy@agcenter.lsu.edu

Louis iana Crops Newsle t ter Page 3

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Metribuzin is a soil residual herbicide that provides excel-lent control of a number of problem annual grasses and broadleaf weeds in soybean. Metribuzin containing herbi-cides, such as Authority MTZ and Boundary, offer the benefit of increased spectrum of weeds controlled over that observed with metribuzin (Sencor) applied alone. Selecting a rate to provide acceptable weed control can be influ-enced by soil type. LSU AgCenter recommendations sug-gests applying metribuzin alone at 0.25 to 0.38 lb/A on light soils where organic matter is 2% or greater, 0.3 to 0.67 lb/A on medium soils, and 0.67 to 1.0 lb/A on heavy soils. Al-though labels for herbicides containing metribuzin typically list soybean varieties that are sensitive to the herbicide, they do not always list varieties that are commonly used in Louisiana.

Although realizing the benefits from a weed control stand-point, past experience with metribuzin injury potential to soybean has caused producers to be hesitant in considera-tion of the herbicide in at planting weed management pro-grams. Therefore, research was conducted in 2010 at the Dean Lee Research and Extension Center in Alexandria and the Northeast Research Station in St. Joseph to screen eight soybean maturity (MG) IV and V varieties for toler-ance to metribuzin. Varieties were selected in consultation with LSU AgCenter Extension Soybean Specialist and upon review of the “Louisiana Selects” soybean variety list published in 2009. Each variety was seeded at 130,000 seeds/acre on May 25, 2010 at both locations.

Metribuzin 75 DF was applied preemergence at 6 oz per acre, which corresponds to 0.28 pounds active ingredient

per acre. For herbicides that contain metribuzin plus an-other herbicides (i.e. Authority MTZ, Boundary), the labeled rate of the product typically contains 4 oz per acre of metribuzin or less; therefore, utilizing the 6 oz rate allowed for accurate screening of tolerance. Below are tables that provide soybean phytotoxicity ratings (0 = no soybean in-jury; 100 = complete soybean death) 8 and 15 days after application (DAA), treated and nontreated soybean yield, percent yield reduction, and ranking of soybean variety tol-erance. The ranking of soybean variety tolerance is pri-marily based upon yield reduction.

Varietal response to metribuzin was observed only at Alex-andria. The primary difference between experimental loca-tions was amount of rainfall received after herbicide appli-cation. In the 15 d interval between planting and the 15 DAA rating, 5-inches of rainfall was recorded at Alexandria compared to only 1-inch at the St. Joseph location. This difference may have played a major role in greater re-sponse observed at Alexandria. Additionally, it should be noted that greater injury was noted for some varieties, but little to no yield reduction was observed. If a soybean vari-ety found to have excellent or good-fair tolerance to metribuzin is planted and metribuzin is applied, then early-season soybean injury may be observed. However, the opposite is also true. In that situation, it may be best to either avoid the use of metribuzin or plant a variety found to be tolerant to metribuzin. Although only representing one year of data, information can be utilized on decisions con-cerning potential variety problems with metribuzin, espe-cially considering that many soybean varieties share a common lineage.

Tolerance of Eight MG IV and V Soybean Varieties to Metribuzin

Drs. Daniel Stephenson and Donnie Miller

LSU AgCenter

Table 1. MG IV soybean varietal response to 6 oz/A of Metribuzin 75 DF applied preemer-gence in Alexandria, LA.

INJURY Yield Yield

reduction

Expected level of tolerance

VARIETY 8 DAA 15 DAA 6 oz/A Nontreated

---------------%--------------- ---------- Bushels/Acre ------

---- %

Delta King 4968 0 0 40 38 0 Excellent

NK S49-H7 0 5 46 47 2 Excellent

Pioneer 94Y70 0 11 44 45 2 Excellent

Terrell 49R19 1 0 47 47 0 Excellent

Asgrow 4730 1 4 40 42 5 Good-Fair

Croplan 4998 1 15 46 48 4 Good-Fair

Delta Grow 4975 3 8 39 43 9 Poor

Terrell 49R11 0 4 28 34 18 Poor

LSD (0.05) NS 13 3 3

Page 20 Volume 1 , Issue 10A

Table 4. MG V soybean varietal response to 6 oz/A of Metribuzin 75 DF applied

preemergence in St. Joseph, LA.

INJURY Yield Yield reduc-tion

Expected level of tolerance

VARIETY 8 DAA 15 DAA 6 oz/A Nontreated

---------------%-------------

-- ---------- Bushels/Acre -------

--- %

Asgrow 5606 0 0 59 59 0 Excellent

Croplan 5663 0 0 56 57 2 Excellent

Delta Grow 5280 0 0 52 49 0 Excellent

Delta King GP 533 0 0 55 51 0 Excellent

HBK 5525 0 0 47 48 2 Excellent

Pioneer 95Y20 0 0 51 48 0 Excellent

Terrell 55R15 0 0 56 53 0 Excellent

NK 57-K3 0 0 54 57 5 Good-Fair

LSD (0.05) NS NS NS 5

Table 2. MG IV soybean varietal response to 6 oz/A of Metribuzin 75 DF applied preemer-gence in St. Joseph, LA.

INJURY Yield Yield

reduction

Expected level of tolerance

VARIETY 8 DAA 15 DAA 6 oz/A Nontreated

---------------%--------------- ---------- Bushels/Acre -------

--- %

Asgrow 4730 0 0 53 50 0 Excellent

Croplan 4998 0 0 62 54 0 Excellent

Delta Grow 4975 0 0 50 49 0 Excellent

Delta King 4968 0 0 45 43 0 Excellent

NK S49-H7 0 0 56 54 0 Excellent

Pioneer 94Y70 0 0 54 51 0 Excellent

Terrell 49R11 0 0 47 45 0 Excellent

Terrell 49R19 0 0 49 49 0 Excellent

LSD (0.05) NS NS 6 5

Table 3. MG V soybean varietal response to 6 oz/A of Metribuzin 75 DF applied

preemergence in Alexandria, LA.

INJURY Yield Yield

reduction

Expected level of tolerance

VARIETY 8 DAA 15 DAA 6 oz/A Nontreated

---------------%-------------

-- ---------- Bushels/Acre ----

------ %

Asgrow 5606 1 3 54 49 0 Excellent

Delta King GP 533 0 19 47 49 0 Excellent

NK 57-K3 0 6 50 49 0 Excellent

Delta Grow 5280 0 6 40 42 5 Good-Fair

Pioneer 95Y20 1 25 43 45 4 Good-Fair

Croplan 5663 0 4 49 53 8 Poor

HBK 5525 0 20 48 52 8 Poor

Terrell 55R15 0 5 48 52 8 Poor

LSD (0.05) NS 8 4 4

Tri-State Soybean Forum

When: Friday January 7, 2011 Time: 8:00 a.m.

Where: Dumas Community Center, Dumas Arkansas

Purpose of this meeting: To provide an educational opportunity for the Soybean Producers of the states of Arkansas, Louisiana and Mississippi.

Soybean Topics Discussed that Day include:

AGENDA: 7:30 – Registration 8:00 – Welcome 8:10 – 8:40 United Soybean Board (USB) Update 8:40 – 9:10 Liberty Link Production Systems Dr. Jeremy Ross University of Arkansas, Division of Arkansas Soybean Specialist 9:10 – 9:40 Weed Resistance Issues in the upcoming Soybean Crop Dr. Bob Scott University of Arkansas, Division of Arkansas Weed Specialist 9:40 – 10:00 Break 10:00 – 10 :30 Soybean Disease Control – Seed and Foliar Dr. Boyd Padgett LSU Agcenter 10:30 – 11:00 Soybean Harvest Aids – Timing Dr. Jim Griffin LSU Ag Center

11:30 – 12:00 Market Outlook Scott Stiles Extension Economist – Risk Managment University of Arkansas 12:00 – 12:30 Producer Panel – Soybean Production Issues Producer from each state 12:30 Lunch For more information contact: Robert Goodson 2011 Forum Chairman P.O. Box 684 Helena, AR 72342 Or rgoodson@uaex.edu Bob Stark 2011 Forum Sec. –Treasurer P.O. Box 3308 Monticello, AR 71656 Stark@uamont.edu Wes Kirpatrick Local Chairman Box 230 McGehee, AR 71654 wkirkpatrick@uaex.edu

Louis iana Crops Newsle t ter Page 21

Parish County Agent Phone Email Acadia Barrett Courville 337-788-8821 bcourville@agcenter.lsu.edu

Allen Randall Bellon 337-639-4376 rbellon@agcenter.lsu.edu

Avoyelles Rob Ferguson 318-308-4191 RFerguson@agctr.lsu.edu

Beauregard Keith Hawkins 337-463-7006 khawkins@agcenter.lsu.edu

Bossier

Caddo John Levasseur 318-226-6505 JLevasseur@agcenter.lsu.edu

Calcasieu Tommy Shields 337-475-8812 tshields@agcenter.lsu.edu

Caldwell Jim McCann 318-649-2663 JMacann@agcenter.lsu.edu

Cameron Tommy Shields 337-905-1318 tshields@agcenter.lsu.edu

Catahoula Glenn Daniels 318-336-5315 GDaniels@agcenter.lsu.edu

Concordia Glenn Daniels 318-336-5315 GDaniels@agcenter.lsu.edu

Desoto

East Carroll Donna Lee 318-282-1292 DRlee@agcenter.lsu.edu

Evangeline Keith Fontenot 337-363-5646 KFontenot@agcenter.lsu.edu

Franklin Carol Pinnell-Alison 318-267-6713 CPinnell-alison@agcenter.lsu.edu

Grant Matt Martin 318-627-3675 MMartin@agcenter.lsu.edu

Iberia Blair Hebert 337-369-4441 bhebert@agcenter.lsu.edu

Iberville Kellee Lassiter 225-687-5155 klassiter@agcenter.lsu.edu

Jeff Davis Allen Hogan 337-824-1773 ahogan@agcenter.lsu.edu

Lafayette Stan Dutile 337-291-7090 sdutile@agcenter.lsu.edu

LaSalle

Madison R.L. Frasier 318-267-6714 RFrasier@agcenter.lsu.edu

Morehouse Terry Erwin 318-282-3615 TErwin@agcenter.lsu.edu

Natchitoches

Ouachita Richard Letlow 318-282-2181 RLetlow@agcenter.lsu.edu

Pointe Coupee Miles Brashier 225-281-9469 MBrashier@agcenter.lsu.edu

Rapides Matt Martin 318-473-6605 MMartin@agcenter.lsu.edu

Red River Joshua Salley 318-932-4342 JSalley@agcenter.lsu.edu

Richland Keith Collins 318-355-0703 KCollins@agcenter.lsu.edu

St. Charles Rene’ Schmit 985-785-4473 rschmit@agcenter.lsu.edu

St. Landry Vincent Deshotel 337-831-1635 VDeshotel@agcenter.lsu.edu

St. Martin Alfred Guidry 337-332-2181 aguidry@agcenter.lsu.edu

St. Mary Jimmy Flanagan 337-828-4100 jflanagan@agcenter.lsu.edu

Tensas Dennis Burns 318-267-6709 DBurns@agcenter.lsu.edu

Vermilion Stuart Gauthier 337-898-4335 sgauthier@agcenter.lsu.edu

Washington Henry Harrison 985-839-7855 hharrison@agcenter.lsu.edu

West Baton Rouge Louis Lirette 225-336-2416 llirette@agcenter.lsu.edu

West Carroll Myrl Sistrunk 318-267-6712 MSistrunk@agcenter.lsu.edu

West Feliciana James Devillier 225-635-3614 jdevillier@agcenter.lsu.edu

Newsletter Ti t le Page 22

P A R I S H C O N TA C T S I N F O R M AT I O N

Louis iana Crops Newsle t ter

Louisiana Crops Newsletter created and distributed By:

Dr. Ronnie Levy

Dr. John Kruse

Brandi Woolam

Dean lee Research Station

8105 Tom Bowman Drive

Alexandria, LA 71302

Phone: 318-473-6520

Fax:318-473-6503

We’re on the Web.

http://www.lsuagcenter.com/en/communications/publications/newsletters/Louisiana-Crops-/Louisiana-Crops-Newsletter.htm

Specialists

Soybean Ron Levy 318-473-6523

318-290-8747(cell)

rlevy@agcenter.lsu.edu

Cotton and Feed Grains John Kruse 318-473-6522

318-229-8180(cell)

jkruse@agcenter.lsu.edu

Weeds Bill Williams 318-334-36309(cell) bwilliams@agcenter.lsu.edu

Weeds Daniel Stephenson 318-308-7225(cell) dstephenson@agcenter.lsu.edu

Entomology Rogers Leonard 318-435-2157

318-334-0147(cell)

rleonard@agcenter.lsu.edu

Nematodes Charlie Overstreet 225-578-2186 coverstreet@agcenter.lsu.edu

Pathology Boyd Padgett 318-435-2157

318-308-9391(cell)

bpadgett@agcenter.lsu.edu

Pathology Clayton Hollier 225.578.4487

225.281-9365 (cell)

chollier@agcenter.lsu.edu

Economics Kurt Guidry

Ken Paxton

225-578-3282

225-578-2763

kmguidry@agcenter.lsu.edu

kpaxton@agcenter.lsu.edu

Ag Economics and

Agribusiness

Kurt Guidry 225-578-3282 kmguidry@agcenter.lsu.edu

Fertility J Stevens 318-427-4408

318-308-0754(cell)

jstevens@agcenter.lsu.edu

Soybeans

Cotton, Corn, Sorghum

Corn, Grain Sorghum, Cotton. Soybeans

Corn, Grain Sorghum, Cotton weed control. Soy-beans

Cotton, Corn, Soybean, Grain Sorghum

All agronomic crops

Soybean, Corn, grain Sor-ghum

Soybean, Corn, grain Sor-ghum

Cotton

Soybean and Feed Grain

marketing

All agronomic crops

Specialty Responsibilities Name Phone Email

Entomology Soybean, Corn, Grain Sorghum

Jack Baldwin 225-578-1634 jbaldwin@agcenter.lsu.edu

Louisiana State University Center Agricultural Center, William B Richardson, Chancellor

Louisiana Agricultural Experiment Station, David J. Boethel, Vice-Chancellor and Director

Louisiana Cooperative Extension Service, Paul D Coreil, Vice Chancellor and Director

Issued in furtherance of the Cooperative Extension work, Acts of Congress of May 8 and June 30, 1914, in cooperation with the United States Department of Agriculture.

The Louisiana Cooperative Extension Service provides equal opportunities in programs and employment