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![Page 1: North Carolina Corn Insect Pest 2015 Update New Corn Offerings for Insects Stink Bug Management in Corn.](https://reader038.fdocuments.in/reader038/viewer/2022103122/56649cfb5503460f949cd193/html5/thumbnails/1.jpg)
North Carolina Corn Insect Pest 2015 Update
New Corn Offerings for Insects
Stink Bug Management in Corn
![Page 2: North Carolina Corn Insect Pest 2015 Update New Corn Offerings for Insects Stink Bug Management in Corn.](https://reader038.fdocuments.in/reader038/viewer/2022103122/56649cfb5503460f949cd193/html5/thumbnails/2.jpg)
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
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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
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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
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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
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Relationship between corn earworm feeding and yield
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0
10
20
30
40
50
60
70
80
90
100
Per
cent
Inj
ured
Pla
nts
Fall Armyworm- Washington Co. 2014
0
1
2
3
4
5
6
7
8
9
Inju
ry R
atin
g (0
-9)
a
b a
0
20
40
60
80
100
120
140
160
180
Yie
ld (
bu/A
)
aa
b
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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 ?
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Trade Name Insecticide a.i./kernel BillbugWhite grub Wireworm
Poncho 250, Acceleron clothianidin 0.25 mg NL F F-G
Poncho 500, Acceleron with Poncho VOTiVO 500
clothianidin 0.50 mg F E G
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 F-G
PPST 250 thiamethoxam 0.25 mg NL, F F G
Cruiser Maxx 500, Avicta Complete Corn
thiamethoxam 0.50 mg NL G G
Cruiser Maxx 1250 thiamethoxam 1.25 mg G E E
PPST 250 plus Lumivia thiamethoxam + chlorantraniliprole
0.25 + 0.25 mg
G ? 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 ?
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Trade Name Insecticide a.i.Bill-bug
White grub Wireworm
Poncho 250, Acceleron clothianidin 0.25 mg/kernel NL F F-G
Poncho 500, Acceleron with Poncho VOTiVO 500
clothianidin 0.50 mg/kernel F E G
Poncho 1250, Acceleron with Poncho VOTiVO 1250, Poncho VOTiVO
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
Cruiser Maxx 500, Avicta Complete Corn
thiamethoxam 0.50 mg/kernel NL G G
Cruiser Maxx 1250 thiamethoxam 1.25 mg/kernel G E E
PPST 250 plus Lumivia thiamethoxam + chlorantraniliprole
0.25 + 0.25 mg/kernel
G ? G?
Imida E-AG 5 FST, Senator 600, Imidacloprid 5, Attendant 600
imidacloprid 0.60 mg/kernel 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 ?
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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
nts
per
Row
Foo
t
a
ab
abcabc
bc bc c c c
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Can We Boost Efficacy with In-Furrow Insecticides?
Pasquotank Co. 2014
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Can We Boost Efficacy with In-Furrow Insecticides?
Pasquotank Co. 2014
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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
red
Pla
nts
per
Row
Foo
t
a
abab
b b b b
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What about Stink Bugs?
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Stink Bug Population Dynamics
Wheat (hypothetical)
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Aerial insecticide applications focused on fungicidal applications over tassling corn are ineffective
but they are likely too late to do any good anyway.
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Stink bugs in wheat and corn, 3 hours post-marking, prior to wheat harvest
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Stink bugs in corn, 2 days post-marking, prior to wheat harvest
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Stink bugs in corn, 4 days post-marking, 2 days post-wheat harvest
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Stink bugs in corn, 6 days post-marking, 4 days post-wheat harvest
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Stink bugs in corn, 8 days post-marking, 6 days post-wheat harvest
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Stink bugs in corn, 10 days post-marking, 8 days post-wheat harvest
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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
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0.24 stink bugs/m2 2.09 stink bugs/m2 0.02 stink bugs/m2
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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