Reported Resistance Case(s)

Species: helicoverpa zea

Order	Family	Common Name(s)	Group	Host
lepidoptera	noctuidae	corn earworm	AG

Active Ingredient: Bacillus thuringiensis Cry1A.105

MOA: Microbial disruptors of insect midgut membranes (includes transgenic crops), Bacillus thuringiensis (variety unstated)
Group: BAC	CAS #:	Shaugnessy Code:

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G21576	2022	Lab selected* Field Evolved Resistance	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G22392	2022	Lab selected after field-evolved resistance**	USA-- Louisiana	Yu, W., Head, G.P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). Insects, 13.
G21579	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G21578	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G21577	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G21503	2021	Field Evolved Resistance	USA-- North Carolina-- Lillington	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21510	2021	Field Evolved Resistance	USA-- Florida-- Santa Rosa	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21511	2021	Field Evolved Resistance	USA-- Louisiana-- Winnsboro	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21512	2021	Field Evolved Resistance	USA-- Louisiana-- Alexandria	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21498	2021	Field Evolved Resistance	USA-- Louisiana-- Winnsboro	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21502	2021	Field Evolved Resistance	USA-- South Carolina-- Darlington	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21501	2021	Field Evolved Resistance	USA-- Arkansas-- Tillar	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21500	2021	Field Evolved Resistance	USA-- Mississippi-- Stoneville	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21499	2021	Field Evolved Resistance	USA-- Louisiana-- Alexandria	Yu, W., Lin, S., Dimase, M.,Niu, Y., Brown, S., Head, G. P., Price, P. A., Reay-Jones, F. P. F., Cook, D., Reisig, D., Thrash, B., Ni, X., Paula-Moraes i, and Huang, F. (2021). Extended investigation of field-evolved resistance of the corn earworm Helicoverpa zea (Lepidoptera: Noctuidae) to Bacillus thuringiensis Cry1A.105 and Cry2Ab2 proteins in the southeastern United States. Journal of invertebrate pathology, 183 107560.
G21580	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G21581	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G21582	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G21583	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.
G21584	2022	Lab selected*	USA	Yu, W., Head, G. P., and Huang, F. (2022). Inheritance of Resistance to Cry1A.105 in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). INSECTS, 19 875.

*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.