Monday, May 9, 2011

Relative Efficacy of Single and Stacked Corn Traits Against Insect Pests in Kentucky


Ric Bessin, Extension Entomology, University of Kentucky
Latest update: May 2011
Corn TypesInsect toxins
Dual modes of Action
ECB
SWCB
BCW
CEW
FAW
WCRW
Min. Refuge Requirement
YieldGard CBCry1Ab

++++
++++

++
++

20% block
Herculex 1Cry1F

++++
++++
++
+
+++

20% block
Agrisure CBCry1Ab

++++
++++

++
++

20% block
YieldGard RWCry3Bb1






++
20% block
Herculex RWCry34Ab1, Cry35Ab1






++
20% block
Agrisure RWmCry3A






++
20% block
YieldGard PlusCry1Ab, Cry3Bb1

++++
++++

++
++
++
20% block
Herculex XtraCry1F, Cry34Ab1, Cry35Ab1

++++
++++
++
+
+++
++
20% block
Agrisure 3000GTCry1Ab, mCry3A

++++
++++

++
++
++
20% block
YieldGard VT3Cry1Ab, Cry3Bb1

++++
++++

++
++
+++
20% block
YieldGard VT2 ProCry1A.105, Cry2Ab2
yes
++++
++++
++
+++
++++

5% block
YieldGard VT3 ProCry1A.105, Cry2Ab2, Cry3Bb1

++++
++++
++
+++
++++
+++
20% block
SmartStaxCry1A.105, Cry2Ab2, Cry3Bb1, Cry1F, Cry34Ab1, Cry35Ab1
yes
++++
++++
+++
+++
++++
+++
5% block
Optimum IntrasectCry1Ab, Cry1F
yes
++++
++++
++



5% block
Agrisure Viptera 3110Vip3Aa, Cry1Ab

++++
++++
+++
++++
++++

20% block
Agrisure Viptera 3111Vip3Aa, Cry1Ab, mCry3A

++++
++++
+++
++++
++++
++
20% block
AcreMax 190% Cry1F, Cry34Ab1, Cry35Ab1 + 10% Cry1F

++++
++++
++
+
+++
++
RIB + 20% block
AcreMax RW90% Cry34Ab1, Cry35Ab1






++
RIB
SmartStax Refuge Advanced/CompleteCry1A.105, Cry2Ab2, Cry3Bb1, Cry1F, Cry34Ab1, Cry35Ab1 + 5% refuge seed
yes
++++
++++
+++
+++
++++
+++
RIB
ECB = European corn borer
SWCB = Southwestern corn borer
BCW = Black cutworm
CEW = Corn earworm
FAW = Fall armyworm
WCRW = Western corn rootworm


‘ + ‘ = Poor to fair control
‘++’ = Good control
‘+++’ = Very good control
‘++++’ = Excellent control
May 2011

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