The phosphine-resistant populations of T. castaneum were collected at
the counties of Alfenas (state of Minas Gerais) (here referred as
resistant – A; 48resistant) and Campos deJu ´lio (state of MatoGrosso) (resistant – CJ; 63resistant), while the susceptible populations were from Agua Boa (state of Mato Grosso) (susceptible –
AB) and Brangança Paulista (state of Sa˜o Paulo) (susceptible – BP).