"Petrificus Totalus!" Hermione cast from Harry's other side, aimed for the Death Eaters - she recognized Lestrange, who wouldn't, and had a terrifying thought as to who the dark haired, feral looking man she saw behind him was.
She couldn't waste time, though, trading hexes when they were likely here to kill them on sight as much as they were to capture them. Not seeing how her charm landed, she began to look for another way for them to escape. Apparation would be fine, if they could all go together, but unless she did something else she knew that they could follow just as quickly.