"Buck Turgidson" writes:

I have a deer (or a very large rabbit) eating hostas in our back yard.
Would a motion detector security light scare it away? I don't want to put
any poisons or other such things out there.

My neighbor says hostas are 'deer lettuce'.

The deer like the light, they can see what they are eating better.

I'm having pretty good success with deer repellents.
I started with 'Shotgun' from Home Depot.
Worked great. Last time I went they had something else
which I'm using now. It seems to be working too.
Look on the bottle, make sure it says it repels with
smell and taste.
You have to reapply after rain or every couple of weeks.
We're almost to the end of August and my hostas are in
one piece. That's a record for me.