Caterpillars are consumption my dads poinsettia? what should i do???????????

what should i do???????????
Answers:    When I had that problem next to caterpillers eating my cabbage plants, I'd sprinkle white flour on the plants right after it rain or early contained by the A.M. (when the dew was still on the plants).
When the caterpillers (cabbage loopers) started crawling up on the plants, they'd capture pasted, suffocate & drop sour.

The caterpillers can be picked off the poinsettia by mitt if you don't have flour handy.

Good Luck! Hope this is handy.
lol! hrmm.. by taking revenge.. eat them!