Are Bt toxins used in transgenic papayas to fight off aphids? Please help. It’s for my school assignment.

No form of Bt is effective against aphids, stinkbugs or any hemipteran.

The papaya was transformed to make it resistant to the virus PRSV by ‘pathogen-derived resistance’, where genes from the pathogen were inserted into the plant. (PRSV is transmitted by aphids)