Ticks- any ideas?

[~Jessie~]

Are there any natural repellants? The only time I ever encounter ticks are during our hikes. I've pulled 3 off of Rory and 2 off Emma in the past month (I check them as soon as we get home). I only use Advantix as needed... since I hardly ever deal with fleas I'd hate to treat them monthly with chemicals.

Any natural solutions I can spray on them before hiking?

Thanks!