Outboard motors use "snapper clamps" on fuel lines. They work well - as secure as a worm clamp, and the convenience of a squeeze clamp. They're thinner than a conventional hose clamp, so you can use two together if you like. I would recommend them for Deere use.
Amazon has a selection, as do marine supply houses.
OMC outboards also used to use a specialized, curved zip tie, specially made for fuel lines. They work well too but are harder to find.