north carolina corn insect pest 2015 update new corn offerings for insects stink bug management in...

North Carolina Corn Insect Pest 2015 Update

New Corn Offerings for Insects

Stink Bug Management in Corn

How Do New Bt Products “Stack” Up?

Common mid- to late-season lep. pestOccasional mid-

to late-season lep. pests

Cutworm

Armyworms

Southern cornstalk borer

European corn borer

Corn earworm

Trade Name Bt proteinsCorn

EarwormFall

Armyworm

Agrisure 3011 Cry1Ab, mCry3Aa P F-G

Agrisure Viptera 3110 Vip3Aa20, Cry1Ab E E

Agrisure Viptera 3111 Vip3Aa20, Cry1Ab, mCry3Aa E E

Agrisure Viptera 3220 Vip3Aa20, Cry1Ab, Cry1F E E

Herculex I (HX1 or HR) Cry1F P G-VGb

Optimum Intrasect (YHR) Cry1F, Cry1Ab F-G VGb

Optimum Intrasect Xtra (YXR) Cry1F, Cry1Ab, Cry34Ab1/Cry35Ab1a

F-G VGb

Optimum Leptera (VYHR) Cry1F, Cry1Ab, Vip3Aa20 E E

YieldGard Corn Borer (YGCB) Cry1Ab P F-G

YieldGard VT Triple (VT3) Cry1Ab, Cry3Bb1a P F-G

Genuity VT Double PRO (GENVT2P) Cry1A.105, Cry2Ab2 G-VG E

Genuity VT Triple PRO (GENVT3P) Cry1A.105, Cry2Ab2, Cry3Bb1a G-VG E

POWERCORE Cry1A.105, Cry2Ab2, Cry1F VG E

SmartStax (SSX), Genuity SmartStax (GENSS)

Cry1A.105, Cry2Ab2, Cry1F, Cry3Bb1*, Cry34Ab1/Cry35Ab1a

VG E

atrait is effective for rootwormbrating will be poor in the Blacklands, where fall armyworm is resistant to Cry1F

Relationship between corn earworm feeding and yield

0

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Per

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Fall Armyworm- Washington Co. 2014

0

1

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9

Inju

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Trade Name Insecticide a.i./kernel BillbugWhite grub Wireworm

Poncho 250, Acceleron clothianidin 0.25 mg NL F G

Poncho 500, Acceleron with Poncho VOTiVO 500

clothianidin 0.50 mg F E VG

Poncho 1250, Acceleron with Poncho VOTiVO 1250, Poncho VOTiVO

clothianidin 1.25 mg G E E

Cruiser Maxx 250 thiamethoxam 0.25 mg NL F G

PPST 250 thiamethoxam 0.25 mg NL, F F G

Cruiser Maxx 500, Avicta Complete Corn

thiamethoxam 0.50 mg NL G VG

Cruiser Maxx 1250 thiamethoxam 1.25 mg G E E

PPST 250 plus Lumivia thiamethoxam + chlorantraniliprole

0.25 + 0.25 mg

G ? ?

Imida E-AG 5 FST, Senator 600, Imidacloprid 5, Attendant 600

imidacloprid 0.60 mg NL G G

Latitude imidacloprid 3.5 oz/CWT NL NL, F G

Concur imidacloprid 1.5 oz/ 42 lb NL F G

Kernel Guard Supreme, Kickstart VP permethrin 1.5 oz/ 42 lb NL NL, F ?

Trade Name Insecticide a.i./kernel BillbugWhite grub Wireworm

Poncho 250, Acceleron clothianidin 0.25 mg NL F F-G


clothianidin 0.50 mg F E G


clothianidin 1.25 mg G E E

Cruiser Maxx 250 thiamethoxam 0.25 mg NL F F-G

PPST 250 thiamethoxam 0.25 mg NL, F F G


thiamethoxam 0.50 mg NL G G

Cruiser Maxx 1250 thiamethoxam 1.25 mg G E E


0.25 + 0.25 mg

G ? G?


imidacloprid 0.60 mg NL G G




Trade Name Insecticide a.i.Bill-bug

White grub Wireworm

Poncho 250, Acceleron clothianidin 0.25 mg/kernel NL F F-G


clothianidin 0.50 mg/kernel F E G


clothianidin 1.25 mg/kernel G E E

Cruiser Maxx 250 thiamethoxam 0.25 mg/kernel NL F F-G

PPST 250 thiamethoxam 0.25 mg/kernel NL, F F G


thiamethoxam 0.50 mg/kernel NL G G

Cruiser Maxx 1250 thiamethoxam 1.25 mg/kernel G E E


0.25 + 0.25 mg/kernel

G ? G?


imidacloprid 0.60 mg/kernel NL G G




Billbug Injury- Hyde Co. 2014

Series10

0.01

0.02

0.03

0.04

0.05

0.06

0.07

Untreated Lumivia 250Lumivia 750 Lumivia 500Poncho 500 Cruiser 250Poncho 1250 Cruiser 250 + Lumivia

500Cruiser 250 + Lumivia 250

Inju

red

Pla

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per

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t

a

ab

abcabc

bc bc c c c

Can We Boost Efficacy with In-Furrow Insecticides?

Pasquotank Co. 2014

Can We Boost Efficacy with In-Furrow Insecticides? Hyde Co. 2014

Series10

0.02

0.04

0.06

0.08

0.1

0.12

0.14

UntreatedCapture 6.4 ozCounter 8 ozPoncho 500Poncho 500 + Counter 8 ozPoncho 1250Poncho 1250 + Counter 8 oz

Inju

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Pla

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per

Row

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What about Stink Bugs?

Stink Bug Population Dynamics

Wheat (hypothetical)

Aerial insecticide applications focused on fungicidal applications over tassling corn are ineffective

but they are likely too late to do any good anyway.

Stink bugs in wheat and corn, 3 hours post-marking, prior to wheat harvest

Stink bugs in corn, 2 days post-marking, prior to wheat harvest

Stink bugs in corn, 4 days post-marking, 2 days post-wheat harvest

Summing Up Corn Stink Bug Management

• Check adjacent wheat for stink bugs – Average stink bug density in 120 NC and VA fields

during 2011 was 1.9 in 20 sweeps at peak infestation

–Watch when 5 or more brown stink bugs in 20 sweeps

– Check status of weeds in adjoining ditches

0.24 stink bugs/m2 2.09 stink bugs/m2 0.02 stink bugs/m2

Summing Up Stink Bug Management in Corn

• Georgia thresholds– Prior to VT - 25% infested plants– R1 - 50% infested plants– R3 - 100% infested plants

• Spray ~7 days after adjacent wheat harvest

north carolina corn insect pest 2015 update new corn offerings for insects stink bug management in...

Documents

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cry1f ee herculex

cry1f vge smartstax

rootworm b rating

genuity smartstax genss