On Mar 28, 2:43 pm, "peter" wrote:
Mole traps are banned in my state (WA).

I tried mole baits, sulphur dioxide smoke bomb to no avail. What should I
try next?

There are only two practical methods to get rid of moles: kill what
they eat, or get an animal that likes to hunt and kill them.

Period.

Is there a way to detect where the mole is under the lawn?

You can often see the earth moving above them, and stab in a shovel
and flip them out. Ineffective for population control unless you have
only two, but entertaining, if you're easily entertained.
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- gpsman