MyFields

The table below has a column titled 'Resistance to a Bt protein in the trait package has developed in:' to highlight insect x Bt combinations with documented field-failures, confirmed resistance, or cross-resistance. These statements are based on published lab assays &/or field research. This view of the Bt Table is intended to alert growers and consultants to potential management problems, influence seed selection, and encourage field scouting. Citations for resistance statements can be found here.

Trait packages in alphabetical order (acronym)	Bt Protein(s) in the trait package	Marketed for control of:	*Resistance to a Bt protein in the trait package has developed in:	Herbicide traits	Non-trait Refuge % (cornbelt)
AcreMax (AM)	Cry1Ab, Cry1F	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Stalk Borer	Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	5% in bag
AcreMax CRW (AMRW)	Cry34/35Ab1	Corn rootworm complex	Corn rootworm complex	GT/LL See dealer RR2	10% in bag
AcreMax Leptra	Cry1Ab, Cry1F, Vip3A	Black Cutworm Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm		GT/LL See dealer	5% in bag
AcreMax TRIsect	Cry1Ab, Cry1F, mCry3A	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	10% in bag
AcreMax Xtra	Cry1Ab, Cry1F, Cry34/35Ab1	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	10% in bag
AcreMax Xtreme	Cry1Ab, Cry1F, Cry34/35Ab1, mCry3A	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	5% in bag
AcreMax1	Cry1F, Cry34/35Ab1	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Southwestern Corn Borer Western Bean Cutworm	GT/LL See dealer RR2	10% in bag 20% ECB
Agrisure 3000GT	Cry1Ab, mCry3A	Corn rootworm complex European Corn Borer Southwestern Corn Borer	Corn rootworm complex	GT/LL See dealer RR2	20%
Agrisure 3010	Cry1Ab	European Corn Borer Southwestern Corn Borer		GT/LL See dealer RR2	20%
Agrisure 3010A	Cry1Ab	European Corn Borer Southwestern Corn Borer		GT/LL See dealer RR2	20%
Agrisure 3011A	Cry1Ab, mCry3A	Corn rootworm complex European Corn Borer Southwestern Corn Borer	Corn rootworm complex	GT/LL See dealer RR2	20%
Agrisure 3120 EZ Refuge	Cry1Ab, Cry1F	Black Cutworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Fall Armyworm Western Bean Cutworm	Depends on hybrid; see bag for code EZ0 (GT) or EZ1 (GT LL)	5% in bag
Agrisure 3122 EZ Refuge	Cry1Ab, Cry1F, Cry34/35Ab1, mCry3A	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	Depends on hybrid; see bag for code EZ0 (GT) or EZ1 (GT LL)	5% in bag
Agrisure Duracade 5122 EZ Refuge	Cry1Ab, Cry1F, eCry3.1Ab, mCry3A	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	Depends on hybrid; see bag for code EZ0 (GT) or EZ1 (GT LL)	5% in bag
Agrisure Duracade 5222 EZ Refuge	Cry1Ab, Cry1F, eCry3.1Ab, mCry3A, Vip3A	Black Cutworm Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm	Corn rootworm complex	Depends on hybrid; see bag for code EZ0 (GT) or EZ1 (GT LL)	5% in bag
Agrisure Viptera 3110	Cry1Ab, Vip3A	Black Cutworm Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm		GT/LL See dealer RR2	20%
Agrisure Viptera 3111	CryAb, mCry3A, Vip3A	Black Cutworm Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm	Corn rootworm complex	GT/LL See dealer RR2	20%
Agrisure Viptera 3220 EZ Refuge	Cry1Ab, Cry1F, Vip3A	Black Cutworm Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm		Depends on hybrid; see bag for code EZ0 (GT) or EZ1 (GT LL)	5% in bag
Herculex I	Cry1F	Black Cutworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Fall Armyworm Southwestern Corn Borer Western Bean Cutworm	GT/LL See dealer RR2	20%
Herculex RW	Cry34/35Ab1	Corn rootworm complex	Corn rootworm complex	GT/LL See dealer RR2	20%
Herculex XTRA	Cry1F, Cry34/35Ab1	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Southwestern Corn Borer Western Bean Cutworm	GT/LL See dealer RR2	20%
Intrasect	Cry1Ab, Cry1F	Black Cutworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	5%
Intrasect TRIsect	Cry1Ab, Cry1F, mCry3A	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	20%
Intrasect Xtra	Cry1Ab, Cry1F, Cry34/35Ab1	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	20%
Intrasect Xtreme	Cry1Ab, Cry1F, Cry34/35Ab1, mCry3A	Black Cutworm Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm	Corn rootworm complex Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	5%
Leptra	Cry1Ab, Cry1F, Vip3A	Black Cutworm Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer		GT/LL See dealer RR2	5%
Powercore	Cry1A.105, Cry1F, Cry2Ab2	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm Western Bean Cutworm	GT/LL See dealer RR2	5%
Powercore Refuge Advanced	Cry1A.105, Cry1F, Cry2Ab2	Black Cutworm Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm Western Bean Cutworm	GT/LL See dealer RR2	5% in bag
QROME	Cry1Ab, Cry1F, Cry34/35Ab1, mCry3A	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Western Bean Cutworm	GT/LL See dealer RR2	5% in bag
SmartStax	Cry1A.105, Cry1F, Cry2Ab2, Cry34/35Ab1, Cry3Bb1	Black Cutworm Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm Corn rootworm complex Western Bean Cutworm	GT/LL See dealer RR2	5%
SmartStax Refuge Advanced	Cry1A.105, Cry1F, Cry2Ab2, Cry34/35Ab1, Cry3Bb1	Black Cutworm Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm Corn rootworm complex Western Bean Cutworm	GT/LL See dealer RR2	5% in bag
SmartStax RIB Complete	Cry1A.105, Cry1F, Cry2Ab2, Cry34/35Ab1, Cry3Bb1	Black Cutworm Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm Corn rootworm complex Western Bean Cutworm	GT/LL See dealer RR2	5% in bag
Trecepta	Cry1A.105, Cry2Ab2, Vip3A	Black Cutworm Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm		GT/LL RR2	5%
Trecepta RIB Complete	Cry1A.105, Cry2Ab2, Vip3A	Black Cutworm Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer True armyworm Western Bean Cutworm		GT/LL RR2	5% in bag
TRIsect	Cry1F, mCry3A	Black Cutworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn rootworm complex Fall Armyworm Southwestern Corn Borer Western Bean Cutworm	GT/LL See dealer RR2	20%
VT Double PRO	Cry1A.105, Cry2Ab2	Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm	GT/LL RR2	5%
VT Double PRO RIB Complete	Cry1A.105, Cry2Ab2	Corn earworm European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm	GT/LL RR2	5% in bag
VT Triple PRO	Cry1A.105, Cry2Ab2, Cry3Bb1	Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm Corn rootworm complex	GT/LL RR2	20%
VT Triple PRO RIB Complete	Cry1A.105, Cry2Ab2, Cry3Bb1	Corn earworm Corn rootworm complex European Corn Borer Fall Armyworm Southwestern Corn Borer Stalk Borer	Corn earworm Corn rootworm complex	GT/LL RR2	10% in bag
Yieldgard Corn Borer	Cry1Ab	European Corn Borer Southwestern Corn Borer	Southwestern Corn Borer	GT/LL RR2	20%
Yieldgard Rootworm	Cry3Bb1	Corn rootworm complex	Corn rootworm complex	GT/LL RR2	20%
Yieldgard VT Triple	Cry1Ab, Cry3Bb1	Corn rootworm complex European Corn Borer Southwestern Corn Borer	Corn rootworm complex Southwestern Corn Borer	GT/LL RR2	20%

Handy Bt Trait Table for U.S. Corn Production