Reported Resistance Case(s)

Species: helicoverpa zea

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

Active Ingredient: Bacillus thuringiensis Vip3A

MOA: Microbial disruptors of insect midgut membranes (includes transgenic crops), Bacillus thuringiensis (variety unstated)
Group: BAC	CAS #:	Shaugnessy Code: 0

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G20671	2020	Lab selected*	USA-- Texas-- Snook	Yang, F., González, J. S.,Little, N., Reisig, D., Payne, G., Dos Santos, R. F., Jurat-Fuentes, J. L., Kurtz, R., and Kerns, D. L. (2020). First documentation of major Vip3Aa resistance alleles in feld populations of Helicoverpa zea (Boddie) (Lepidoptera: noctuidae) in Texas, USA. Scientific Reports, 10 5867.
G20723	2020	Lab selected after field-evolved resistance**	USA-- Louisiana-- Franklin Parish	Yang F, Santiago González JC, Sword GA and Kerns DL. (2020). Genetic basis of resistance to the Vip3Aa Bt protein in Helicoverpa zea.. Pest Management Science, 77 1530-1535.
G20915	2021	Lab selected after field-evolved resistance**	USA-- Louisiana-- Franklin Parish	Yang, F., Santiago González, J.C., Sword, G.A. and Kerns, D.L. (2021). Genetic basis of resistance to the Vip3Aa Bt protein in Helicoverpa zea.. Pest Management Science, 77 1530-1535.

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