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(1)

Agricultural

Experiment Station

Technical Report

TR15-9

College of Agricultural Sciences

Department of Soil & Crop Sciences

Extension

Making Better

Decisions

2015 Colorado Corn

Variety Performance Trials

(2)

Table of Contents

Authors...3

Acknowledgments...3

2015 Irrigated Corn Hybrid Performance Trial at Holyoke...6

2015 Irrigated Corn Hybrid Performance Trial at Rocky Ford...7

2015 Irrigated Corn Hybrid Performance Trial at Wiggins...8

2015 Irrigated Corn Hybrid Performance Trial at Yuma...9

2015 Irrigated Corn Hybrid Performance Trial at Burlington ...10

Corn Biotech Traits...11

For the fastest access to up-to-date variety information and results visit us at: www.csucrops.com

Research conducted by Colorado State University Crops Testing Program

Department of Soil and Crop Sciences

Colorado State University Extension

Colorado Agricultural Experiment Station

Disclaimer

**Mention of a trademark or proprietary product does not constitute endorsement by the Colorado

Agricultural Experiment Station.**

Colorado State University is an equal opportunity/affirmative action institution and complies with

all Federal and Colorado State laws, regulations, and executive orders regarding affirmative action

requirements in all programs. The Office of Equal Opportunity is located in 101 Student Services.

In order to assist Colorado State University in meeting its affirmative action responsibilities, ethnic

minorities, women, and other protected class members are encouraged to apply and to so identify

themselves.

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3

Authors

Acknowledgments

The authors express their gratitude to the Colorado farmers and research stations who

voluntarily and generously contributed the use of their land, equipment, and time to help CSU

with the 2015 corn hybrid performance trials. We are thankful to the collaborating farmers,

Tim Stahlecker at Burlington, Mark and Neil Lambert at Dailey, Brent Adler at Holyoke,

Cooksey Farms at Wiggins, and Byron Weathers at Yuma. We thank Kevin Tanabe and

Michael Bartolo at the Arkansas Valley Research Center for conducting the Rocky Ford trial.

The trials would not be possible without research support provided by the Colorado State

University Agricultural Experiment Station.

Dr. Jerry Johnson - Professor and Extension Specialist - Crop Production, CSU Department

of Soil and Crop Sciences, Phone: 970-491-1454, Cell: 970-690-9259, E-mail: jerry.johnson@

colostate.edu.

Sally Sauer - Research Associate - Crops Testing, CSU Department of Soil and Crop Sciences,

Phone: 970-491-1914, E-mail: sally.sauer@colostate.edu.

Ed Asfeld - Research Associate - Crops Testing, CSU Department of Soil and Crop Sciences,

40335 CR GG, Akron, CO 80720, Phone: 970-554-0980, E-mail: ed.asfeld@colostate.edu.

Dr. Mike Bartolo - Superintendent and Research Scientist, CSU Arkansas Valley Research

Center, 27901 Road 21, Rocky Ford, CO 81067, Phone: 719-254-6312, E-mail: michael.bartolo@

colostate.edu.

Kevin Tanabe - Research Associate, CSU Arkansas Valley Research Center, 27901 Road 21,

Rocky Ford, CO 81067, Phone: 719-254-6312, E-mail: kevin.tanabe@colostate.edu.

Dr. Merle Vigil - Director and Research Soil Scientist, USDA-ARS, Central Great Plains

Research Station, 40335 County Road GG, Akron, CO 80720, Phone: 970-345-0517, E-mail:

merle.vigil@ars.usda.gov.

Kierra Jewell - Administrative Assistant III, CSU Department of Soil and Crop Sciences, Phone:

970-491-6201, E-mail: kierra.jewell@colostate.edu.

(4)

2015 Colorado Corn Hybrid Performance Trials

Colorado State University conducts hybrid corn performance trials to provide research-based,

unbiased and reliable information to Colorado corn producers so they can select the best

hybrids for their farms. The corn hybrid performance trials are possible by funding received

from company entry fees, the CSU Agricultural Experiment Station, and the Colorado Corn

Growers Association.

Colorado produced over 151 million

bushels of corn on 960,000 harvested

acres in 2015 according to the USDA

National Ag. Statistics Service. The

total value of production was over 604

million dollars in 2014 (most recent year

available). Figure 1 shows the dryland

and irrigated corn acres planted in

Colorado from 1995 through 2014. In

general, there has been a substantial

increase in dryland acreage over the last

20 years, starting from 107,000 acres in

1995 and increasing to a high of 610,000

dryland acres in 2011. Nevertheless,

dryland acreage has decreased every

year since 2011. The increase in dryland acreage (see upward slope of the red line) was

probably due to herbicide tolerant hybrids. No-till and medium-till cropping systems were

Š˜™Žȱ‹¢ȱ›¢•Š—ȱŠ›–Ž›œǯȱ‘Ž¢ȱŠ•œ˜ȱ’ŸŽ›œ’ꮍȱ‘Ž’›ȱŠ›–ȱ˜™Ž›Š’˜—œȱ‹¢ȱŠ˜™’—ȱ–ž•’™•Žȱ

crop systems. In some years, higher corn prices have also led to increased corn acreage.

However, the rapid decrease in corn value and stubbornly high prices for corn inputs in

the last year have combined to make corn less desirable and have resulted in reduced corn

acreage.

Figure 2 shows the yearly average yield

for irrigated and dryland corn in Colorado

from 1995 through 2014. There is a steady

linear increase in irrigated corn yield

from 121 bu/ac in 1995 to 191 bu/ac in

2014. Note that in 2006 and 2010 average

¢’Ž•œȱ Ž›ŽȱŘŖŖȱ‹žȦŠŒȱ˜›ȱ‹ŽĴŽ›Ƿȱȱ –™›˜ŸŽȱ

genetics and more precise farming

practices may account for the increasing

general trend in average irrigated yield.

The high average yields in 2006 and

2010 were most likely due to higher than

average growing season heat units (longer

growing season).

The dryland corn yields are highly dependent on weather conditions during the growing

season. The amount and timing of rainfall received can make-or-break dryland corn yields.

Figure 1: Irrigated and Dryland Corn Acres Planted in Colorado from 1995-2014

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5

This was true in the drought years from 2002 through 2006, and again in 2012 and 2013 when

there was not enough rainfall during the growing season and the dryland yield fell below 50

bu/ac. It is hoped that new drought tolerance genetics, applied to hybrids suitable to Colorado

conditions, will change the downward trend of dryland corn yields.

In 2015, Colorado State University personnel planted five irrigated and two dryland corn trials

in eastern Colorado. Irrigated trial locations were Burlington, Holyoke, Rocky Ford, Wiggins,

and Yuma. The two dryland trials were located at Akron and Dailey. Our dryland trials did

not give viable harvest results due to a severe hailstorm (stripping all leaves from plants) on

August 1st at Akron and extensive early-season rodent damage at Dailey. Thirty-five hybrids

with diverse origins, maturities, and value-added traits were tested in our different irrigated

and dryland trial locations. Plot sizes were 150 ft

2

. All irrigated trials were planted at 39,000

seeds per acre and Dailey was planted at 17,000 seeds per acre while the Akron trial was

seeded at 14,000 seeds per acre. Seed yields for all trial varieties are reported in the tables.

Yields are adjusted to 15.5% seed moisture content. Each table is intended to be stand-alone,

containing all of the available information for that trial.

(6)

2015 Irrigated Corn Hybrid Performance Trial at Holyoke

Brand Hybrid

Insect and Herbicide

Technology Traitsa Yieldb Avg. Yield2-Year MaturityRelative c Moisture WeightTest Height Population LodgingPlant

bu/ac bu/ac percent lb/bu in plants/ac percent NuTech/G2 Genetics 5Z-308 INT,RR2, LL 300.0 - 108 16.2 59.1 118 30,517 0.5 AgVenture AV7307AM AM, RR2, LL 297.2 - 107 16.4 58.7 119 29,854 0.0 AgVenture RL7687YHB INT, RR2, LL 293.2 286.0 109 16.5 59.0 119 29,759 0.2 AgVenture RL8767HB HX, RR2, LL 293.0 282.4 113 15.9 57.7 124 31,242 3.2 AgVenture AV6805YHR INT, RR2, LL 284.2 - 105 16.0 58.0 121 29,398 2.2 NuTech/G2 Genetics 5Z-906 INT,RR2, LL 281.9 - 106 16.1 58.2 124 27,841 1.9 NuTech/G2 Genetics 5F-709 AM, RR2, LL 276.0 - 109 15.6 58.1 121 31,506 1.0 LG Seeds LG5548STXRIB STXRIB, RR2, LL 267.4 - 108 15.4 57.7 117 29,848 0.3 LG Seeds LG2602VT3PRIB VT3PRIB, RR2 266.6 244.7 112 16.9 55.7 118 29,624 8.3 LG Seeds LG5579VT3PRIB VT3PRIB, RR2 261.8 236.4 109 16.1 57.3 118 30,157 1.0 LG Seeds LG5618STXRIB STXRIB, RR2, LL 259.4 - 112 17.1 58.6 112 31,786 0.0 NuTech/G2 Genetics 5X-905 HXT, RR2, LL 240.6 - 105 14.4 57.8 112 29,954 2.9 NuTech/G2 Genetics 5Z-504 INT,RR2, LL 237.7 - 104 15.1 58.0 120 29,754 0.8

Average 273.8 262.4 108 16.0 58.0 119 30,095 1.7

dLSD (P<0.30) 12.6

bYields corrected to 15.5% moisture.

Plot size: 5' x 30'

Site Information

Collaborator: Brent Adler Planting Date: May 7, 2015 Harvest Date: November 9, 2015

Fertilizer: Nitrogen at 238 (3 lb as slow release N) phosphorus at 70, sulfur at 35, and zinc at 1.5 lb/ac Herbicide: Roundup PowerMax at 32 oz/ac and Status at 3 oz/ac applied on 6/13/15

Roundup PowerMax at 32 oz/ac and Dual Magnum at 16 oz/ac applied on 6/24/15 Soil Type: Valent sand

Irrigation Type: Center-pivot

2015 Irrigated Corn Hybrid Performance Trial at Holyoke

aTechnology trait designations: AM=Optimum AcreMax; HX=Herculex 1; HXT=Herculex XTRA; INT=Optimum Intrasect; LL=LibertyLink;

RR2=Roundup Ready 2; STXRIB=Genuity SmartStax Refuge in the Bag Complete; VT3PRIB=Genuity VecTran Triple Protection Refuge in the Bag Complete.

dIf the difference between two hybrid yields equals or exceeds the LSD value, there is a 70% chance the difference is significant.

cRelative maturity is provided by the respective companies and is the approximate time from planting to harvest maturity. The method of calculation

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7

2015 Irrigated Corn Hybrid Performance Trial at Rocky Ford

Brand

Hybrid

Insect and Herbicide

Technology Traits

a

Yield

b

Relative

Maturity

c

Moisture

Weight Population

Test

bu/ac

percent

lb/bu

plants/ac

LG Seeds

LG5622STXRIB

STXRIB, RR2, LL

269.0

112

17.6

58.8

29,685

LG Seeds

LG5618STXRIB

STXRIB, RR2, LL

266.9

112

17.5

59.0

31,621

LG Seeds

LG2636VT3PRIB

VT3PRIB, RR2

265.9

114

16.9

57.4

28,395

LG Seeds

LG5677VT2Pro

VT2Pro, RR2

247.2

115

16.6

56.5

31,621

Average

262.2

113

17.1

57.9

30,331

d

LSD (P<0.30)

5.5

b

Yields corrected to 15.5% moisture.

Plot size: 5' x 30'

Site Information

Collaborator:

Arkansas Valley Research Center (Mike Bartolo & Kevin Tanabe)

Planting Date: May 18, 2015

Harvest Date:

November 6, 2015

Fertilizer:

N at 108 and P at 78 lb/ac

Herbicide:

Buccaneer Plus at 32 oz/ac and Status at 10 oz/ac

Soil Type:

Rocky Ford silty clay loam

Irrigation Type: Furrow

2015 Irrigated Corn Hybrid Performance Trial at Rocky Ford

a

Technology trait designations: LL=LibertyLink; RR2=Roundup Ready 2; STXRIB=Genuity SmartStax Refuge

in the Bag Complete; VT2Pro=Genuity VecTran Double Protection; VT3PRIB=Genuity VecTran Triple

Protection Refuge in the Bag Complete.

c

Relative maturity is provided by the respective companies and is the approximate time from planting to harvest

maturity. The method of calculation of the relative maturity ratings may vary among companies.

d

If the difference between two hybrid yields equals or exceeds the LSD value, there is a 70% chance the

difference is significant.

(8)

2015 Irrigated Corn Hybrid Performance Trial at Wiggins

Brand Hybrid

Insect and Herbicide

Technology Traitsa Yieldb Avg. Yield3-Year MaturityRelative c Moisture WeightTest Height PopulationPlant

bu/ac bu/ac percent lb/bu in plants/ac NuTech/G2 Genetics 5Z-906 INT,RR2, LL 280.9 - 106 15.8 58.6 114 31,710 NuTech/G2 Genetics 5X-905 HXT, RR2, LL 271.4 229.0 105 14.8 57.2 109 32,386 LG Seeds LG5548STXRIB STXRIB, RR2, LL 263.3 - 108 16.8 58.3 113 32,664 NuTech/G2 Genetics 5Z-504 INT,RR2, LL 263.0 - 104 14.8 58.3 114 31,344 LG Seeds LG5499STXRIB STXRIB, RR2, LL 261.3 221.9 100 14.4 58.4 109 31,193 LG Seeds LG5523STXRIB STXRIB, RR2, LL 249.3 - 105 14.2 59.7 107 31,994 LG Seeds LG5502STXRIB STXRIB, RR2, LL 243.8 - 102 14.8 59.2 107 30,244 NuTech/G2 Genetics 5H-502 HX, RR2, LL 241.6 213.9 102 14.2 58.9 110 29,565

Average 259.3 221.6 104 15.0 58.6 110 31,387

dLSD (P<0.30) 11.7

bYields corrected to 15.5% moisture.

Plot size: 5' x 30'

Site Information

Collaborator: Cooksey Farms Planting Date: May 17, 2015 Harvest Date: November 15, 2015

Fertilizer: Pre-plant: N at 100, P at 32, and S at 4.5 lb/ac Starter: N at 20, P at 18, K at 4.5, and Zn at 1 lb/ac Post-plant: N at 90, K at 10, and S at 10 lb/ac

Herbicide: Roundup PowerMax at 32 oz/ac, Dual Magnum at 19 oz/ac, and WideMatch at 16 oz/ac Soil Type: Heldt clay

Irrigation Type: Center-pivot

2015 Irrigated Corn Hybrid Performance Trial at Wiggins

aTechnology trait designations: HX=Herculex 1; HXT=Herculex XTRA; INT=Optimum Intrasect; LL=LibertyLink; RR2=Roundup Ready

2; STXRIB=Genuity SmartStax Refuge in the Bag Complete.

cRelative maturity is provided by the respective companies and is the approximate time from planting to harvest maturity. The method of

calculation of the relative maturity ratings may vary among companies.

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9

2015 Irrigated Corn Hybrid Performance Trial at Yuma

Brand

Hybrid

Insect and Herbicide

Technology Traits

a

Yield

b

Relative

Maturity

c

Moisture

Weight

Test

Height Population

Plant

bu/ac

percent lb/bu

in

plants/ac

NuTech/G2 Genetics 5Z-906

INT,RR2, LL

266.9

106

23.0

55.6

103

28,326

NuTech/G2 Genetics 5F-709

AM, RR2, LL

263.0

109

23.3

55.3

105

31,750

NuTech/G2 Genetics 5Z-308

INT,RR2, LL

263.0

108

22.7

56.9

103

29,283

AgVenture

AV6805YHR

INT, RR2, LL

261.5

105

22.5

55.5

106

28,169

LG Seeds

LG2602VT3PRIB

VT3PRIB, RR2

259.9

112

23.4

53.1

107

30,686

NuTech/G2 Genetics 5F-510

AM, RR2, LL

256.9

110

22.9

57.0

106

29,104

NuTech/G2 Genetics 5X-905

HXT, RR2, LL

256.1

105

19.9

55.6

99

30,082

LG Seeds

LG5618STXRIB

STXRIB, RR2, LL

255.8

112

27.4

54.2

102

29,485

AgVenture

RL8767HB

HX, RR2, LL

254.3

113

25.6

53.8

108

29,040

AgVenture

AV7307AM

AM, RR2, LL

251.7

107

22.2

57.1

101

30,202

AgVenture

RL7687YHB

INT, RR2, LL

251.7

109

23.5

56.9

106

28,702

LG Seeds

LG5579VT3PRIB

VT3PRIB, RR2

243.4

109

20.5

54.3

103

29,814

NuTech/G2 Genetics 5Z-504

INT,RR2, LL

240.5

104

20.6

56.9

104

29,330

LG Seeds

LG5548STXRIB

STXRIB, RR2, LL

239.3

108

24.4

55.7

102

31,532

Average

254.6

108

23.0

55.6

104

29,679

d

LSD (P<0.30)

7.9

b

Yields corrected to 15.5% moisture.

Plot size: 5' x 30'

Site Information

Collaborator:

Byron Weathers

Planting Date:

June 2, 2015

Harvest Date:

November 10, 2015

Fertilizer:

Dairy manure at 25 ton/ac plus 265 lb/ac of N through pivot

Starter: N at 30, P at 41, K at 8, and Zn at 0.8 lb/ac

Foliar: N at 4.6, P at 1.6, K at 2.1 and B at 0.08 lb/ac applied at V5 and again at VT growth stage

Herbicide:

Lumax at 86 oz/ac, atrazine at 28 oz/ac, and Roundup PowerMax at 32 oz/ac applied on 6/5/15

Roundup PowerMax at 32 oz/ac applied with foliar feed at V5 growth stage

Insecticide:

Dimate 4E at 13 oz/ac and Capture at 6 oz/ac applied at VT growth stage

Soil Type:

Valent sand

Irrigation Type:

Center-pivot

2015 Irrigated Corn Hybrid Performance Trial at Yuma

a

Technology trait designations: AM=Optimum AcreMax; HX=Herculex 1; HXT=Herculex XTRA; INT=Optimum Intrasect;

LL=LibertyLink; RR2=Roundup Ready 2; STXRIB=Genuity SmartStax Refuge in the Bag Complete; VT3PRIB=Genuity

VecTran Triple Protection Refuge in the Bag Complete.

c

Relative maturity is provided by the respective companies and is the approximate time from planting to harvest maturity. The

method of calculation of the relative maturity ratings may vary among companies.

d

If the difference between two hybrid yields equals or exceeds the LSD value, there is a 70% chance the difference is

(10)

2015 Irrigated Corn Hybrid Performance Trial at Burlington

Brand Hybrid

Insect and Herbicide

Technology Traitsa Yieldb MaturityRelative c Moisture WeightTest Height Population GreensnapPlant

bu/ac percent lb/bu in plants/ac percent

AgVenture RL8767HB HX, RR2, LL 262.3 113 17.0 56.7 105 29,172 3.5

NuTech/G2 Genetics 5Z-308 INT,RR2, LL 259.7 108 15.7 58.3 97 29,881 0.5

AgVenture RL7687YHB INT, RR2, LL 253.0 109 15.9 58.6 98 28,211 0.0

AgVenture AV6805YHR INT, RR2, LL 250.4 105 15.5 57.5 101 29,535 0.0

NuTech/G2 Genetics 5F-510 AM, RR2, LL 248.9 110 16.2 58.5 102 30,362 0.0 NuTech/G2 Genetics 5F-709 AM, RR2, LL 244.3 109 16.1 57.2 102 29,675 1.5

AgVenture AV7307AM AM, RR2, LL 243.8 107 15.6 58.3 98 30,597 0.0

Producers Hybrids 7068STX STX, RR2, LL 243.6 110 15.5 56.6 97 29,198 3.1 Producers Hybrids 6878STXRIB STXRIB, RR2, LL 236.9 108 15.1 57.3 99 28,931 0.0 NuTech/G2 Genetics 5Z-906 INT,RR2, LL 236.0 106 14.9 57.4 105 29,602 0.0 NuTech/G2 Genetics 5Z-504 INT,RR2, LL 227.8 104 14.1 57.4 101 28,404 0.0 Producers Hybrids 6108STXRIB STXRIB, RR2, LL 220.0 101 14.1 57.7 98 30,387 0.0 Producers Hybrids 7268STXRIB STXRIB, RR2, LL 218.3 112 18.8 57.1 95 25,405 4.5

Average 241.9 108 15.7 57.6 100 29,182 1.0

dLSD (P<0.30) 15.3

bYields corrected to 15.5% moisture.

Plot size: 5' x 30' Site Information

Collaborator: Tim Stahlecker Planting Date: May 15, 2015 Harvest Date: October 26, 2015

Fertilizer: Nitrogen at 220, phosphorus at 60, sulfur at 10, and zinc at 1 lb/ac

Herbicide: Roundup PowerMAX at 32 oz/ac, Laudis at 2.5 oz/ac, and atrazine at 1 pint/ac Soil Type: Norka silt loam

Irrigation Type: Center-pivot

2015 Irrigated Corn Hybrid Performance Trial at Burlington

dIf the difference between two hybrid yields equals or exceeds the LSD value, there is a 70% chance the difference is significant. cRelative maturity is provided by the respective companies and is the approximate time from planting to harvest maturity. The method of

calculation of the relative maturity may vary among companies.

aTechnology trait designations: AM=Optimum AcreMax; HX=Herculex 1; INT=Optimum Intrasect; LL=LibertyLink; RR2=Roundup

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11

With questions or for corrections, contact:

Chris DiFonzo, Field Crops Entomologist

Michigan State University, East Lansing, MI

6 April 2015

Updates to this bulletin

posted at www.msuent.com

Handy Bt Trait Table

Most corn hybrids planted in the U.S. now contain one or more transgenic traits for weed or insect management.

These traits are meant to increase flexibility and profitability for producers, but sometimes also lead to questions or

cause confusion about their spectrum of control or refuge requirements to delay resistance. This bulletin provides a

handy one-stop-guide to understand sales materials, bag tags, and the hybrids you purchase.

Table 1 lists the names of the important ‘events’ (transformations of one or more genes) in corn, their more familiar

Trade Names, the protein(s) expressed, and their pest targets. Table 2 lists specific trait packages (combinations of

events) sold by various seed companies, with their spectrum of control plus refuge % and location. In recent years,

the pyramiding of Bt traits allowed for the reduction of some refuges from 20% to 10% or 5%, depending on the trait

package. Some hybrids still require a structured refuge planted as a block or series of rows (within, adjacent to, or ~½

mile from the Bt field) , but many hybrids are now sold as a convenient refuge-in-the-bag (RIB). But it is still important

to take the following steps:

SB stalk borer

SWCB southern corn borer

TAW true armyworm

WBC western bean cutworm

Herbicide activity

GT glyphosate tolerant

LL Liberty Link, glufosinate-tolerant

RR2 Roundup Ready 2, glyphosate-tolerant

Abbreviations used in Table 2 on page 2

Table 1. Event names for proteins expressed in Bt corn plants

Trade name

Event name

Protein(s) expressed

Insect Target or Herbicide Activity

Agrisure CB/LL

Bt11

Cry1Ab+PAT

corn borer + glufosinate tolerance

Agrisure Duracade

5307

eCry3.1Ab

rootworm

Agrisure RW

MIR604

mCry3A

rootworm

Agrisure Viptera

MIR162

Vip3Aa

broad lep control

Herculex 1 or CB

TC1507

Cry1F + PAT

corn borer + glufosinate tolerance

Herculex RW

DAS-59122-7

Cry34Ab1/Cry35Ab1+PAT

rootworm + glufosinate tolerance

Roundup Ready 2

NK603

CP4 EPSPS

glyphosate tolerance

YieldGard CB

MON810

Cry1Ab

corn borer

YieldGard VT Pro

MON89034

Cry1A.105+Cry2Ab2

broad lep control

YieldGard VT RW

MON88017

Cry3Bb1+CP4 EPSPS

rootworm + glyphosate tolerance

ity

e tolerant

k l f

l

Insect targets

BCW black cutworm

CEW corn earworm

ECB European corn borer

FAW fall armyworm

RW corn rootworm

*Understand the biology of each trait, the expected level of control, and refuge requirements;

*Confirm that the seed you ordered the previous year is the seed delivered in the spring;

*Keep good planting records and save a representative sample of bags or bag tags;

*For herbicide applications, Ask Twice-Spray Once, especially if you hire a custom applicator;

*Most important, if you see unexpected damage or poor performance of a trait (especially

damage from corn rootworm), contact your seed dealer and extension educator immediately

so that the field can be visited while the problem is still fresh and samples can be taken.

This is critical to identify and manage cases of rootworm Bt resistance.

This bulletin strives for completeness, but keeping track of Bt traits isn’t easy. For a searchable, easy-to-use database of

GM crop approvals, see the ISAAA web site at http://www.isaaa.org/gmapprovaldatabase

SB

rd VT RW

MON8801

argets

black cut

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(12)

Trait Family

Product

Bt protein(s)

Insects controlled or suppressed

Above-ground---In soil

Herbicide

tolerant?

Refuge %, placement

(for the MIDWEST)

AGRISURE

Agrisure GT/CB/LL,3010A Cry1Ab ECB SWCB CEW FAW SB --- GT LL 20% structured-½ mile Agrisure 3000GT, 3011A Cry1Ab mCry3A ECB SWCB CEW FAW SB RW GT LL 20% structured-w/in, adj Agrisure Viptera 3110 Cry1Ab Vip3A BCW CEW ECB FAW SB

SWCB TAW WBC --- GT LL 20% structured-½ mile Agrisure Viptera 3111 Cry1Ab mCry3A Vip3A BCW CEW ECB FAW SB

SWCB TAW WBC RW GT LL 20% structured-w/in, adj Agrisure 3122

E-Z Refuge Cry1Ab Cry1F mCry3ACry34/35Ab1 BCW ECB FAW SBSWCB WBC CEW RW GT 5% in the bag (RIB) Agrisure Viptera 3220

E-Z Refuge Cry1Ab Cry1F Vip3A BCW CEW ECB FAW SB SWCB TAW WBC --- GT 5% in the bag (RIB) Agrisure Duracade 5122

E-Z Refuge mCry3A eCry3.1AbCry1Ab Cry1F BCW ECB FAW SBSWCB WBC CEW RW GT 5% in the bag (RIB) Agrisure Duracade 5222

E-Z Refuge Cry1Ab Cry1F Vip3AmCry3A eCry3.1Ab BCW CEW ECB FAWSB SWCB TAW WBC RW GT 5% in the bag (RIB)

HERCULEX

Herculex 1 (HX1) Cry1F BCW ECB FAW SB

SWCB WBC CEW --- LL RR2 (most)

20% structured-½ mile Herculex RW (HXRW) Cry34/35Ab1 --- RW 20% structured-w/in, adj Herculex XTRA (HXX) Cry1F

Cry34/35Ab1 BCW ECB FAW SB SWCB WBC CEW RW 20% structured-w/in, adj

OPTIMUM

TRIsect Cry1F mCry3A BCW ECB FAW SB

SWCB WBC CEW RW LL RR2 20% structured-w/in, adj Intrasect Cry1F Cry1Ab BCW ECB FAW SB

SWCB WBC CEW --- LL RR2 5% structured-½ mile Intrasect Leptra Cry1F Cry1Ab Vip3A BCW CEW ECB FAW SB

SWCB TAW WBC --- LL RR2 5% structured-w/in, adj Intrasect XTra Cry1F Cry1Ab

Cry34/35Ab1 BCW ECB FAW SB SWCB WBC CEW RW LL RR2 20% structured-w/in, adj Intrasect XTreme Cry1F Cry1Ab

mCry3A Cry34/35Ab1 BCW ECB FAW SB SWCB WBC CEW RW LL RR2 5% structured-w/in, adj AcreMax (AM) Cry1F Cry1Ab BCW ECB FAW SB

SWCB WBC CEW --- LL RR2 5% in the bag (RIB) AcreMax RW (AMRW) Cry34/35Ab1 --- RW LL RR2 10% in the bag (RIB) AcreMax1 (AM1) Cry1F Cry34/35Ab1 BCW ECB FAW SB

SWCB WBC CEW RW LL RR2 20%10% in the bag (RW) &structured-½ mile(CB) AcreMax TRIsect (AMT) Cry1F Cry1Ab mCry3A BCW ECB FAW SB

SWCB WBC CEW RW LL RR2 10% in the bag (RIB) AcreMax Xtra (AMX) Cry1F Cry1Ab

Cry34/35Ab1 BCW ECB FAW SB SWCB WBC CEW RW LL RR2 10% in the bag (RIB) AcreMax XTrem (AMXT) Cry1F Cry1Ab mCry3A

Cry34/35Ab1 BCW ECB FAW SB SWCB WBC CEW RW LL RR2 5% in the bag (RIB)

YIELDGARD / GENUITY

YieldGard CB (YGCB) Cry1Ab ECB SWCB CEW FAW SB --- RR2 20% structured-½ mile YieldGard VT Rootworm Cry3Bb1 --- RW RR2 20% structured-w/in, adj YieldGard VT Triple Cry1Ab Cry3Bb1 ECB SWCB CEW FAW SB RW RR2 20% structured-w/in, adj Genuity VT Double PRO

(or as RIB complete) Cry1A.105 Cry2Ab2 CEW ECB FAW SB SWCB --- RR2 (or 5% in the bag (RIB))5% structured-½ mile Genuity VT Triple PRO

(or as RIB complete) Cry1A.105 Cry2Ab2Cry3Bb1 CEW ECB FAW SB SWCB RW RR2 20% structured-w/in, adj(or 10% in the bag (RIB)) Genuity SmartStax

RIB Complete

Cry1A.105 Cry2Ab2 Cry1F

Cry3Bb1 Cry34/35Ab1 BCW CEW ECB FAW SB SWCB WBC RW LL RR2 5% in the bag (RIB)

OTHERS

Smartstax

(or as Refuge Advanced)

Cry1A.105 Cry2Ab2 Cry1F

Cry3Bb1 Cry34/35Ab1 BCW CEW ECB FAWSB SWCB WBC RW LL RR2 5% structured-w/in, adj(or 5% in the bag (RIB))

Table 2. Bt corn trait packages, with spectrum of control and refuge requirements.

(13)
(14)
(15)
(16)

Figure

Figure 2 shows the yearly average yield  for irrigated and dryland corn in Colorado  from 1995 through 2014
Table 1 lists the names of the important ‘events’ (transformations of one or more genes) in corn, their more familiar  Trade Names, the protein(s) expressed, and their pest targets
Table 2. Bt corn trait packages, with spectrum of control and refuge requirements.

References

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