I use Selsun Blue shampoo to wash my dogs (Great Pyrenees). This seems to get any ticks on them moving around. (I use Frontiline on them, so only bath them at the end of the month prior to re-application). Anyway, you might try this shampoo on the ticks and see if it makes them detach. It also kills fleas on the dogs. Just an idea. We have no ticks or chiggers within a hundred yards of the house because of the Guineas and chickens....mostly the Guineas I think. But if we or the dogs go way out in the woods, we may get ticks.