We just got the Scarecrow sprinkler at the advice of another forum member....it has kept the groundhog out...and will keep the deer as well. (and that's with a 4 ft fence)

I never tried it, but I was told to use SCram an organic powder, that smells like dead deer, although not as noticable to humans.

Video reply: Why there is no durable solution for deer other than a big fence; the amount of deer per acre where research would indicate an epidemic.

Deer are becoming a huge issue due to increased population and no natural predator; deer are very good at breeding and the herds get bigger and stronger. If you get heavy snow late in the winter, most of the low-lying food for deer is still covered up, so deer will get into garden spaces big and small and eat anything - they will graze on plants until they are down to a stub.

There are some things that are not on the deer's menu like boxwood and pieris. If you're growing vegetables, a deer fence is the way to go. Deer fences can be costly, but you can build one yourself or get a DIY fence-building kit.

This video reply was first broadcast online during our live plant and gardening Q&A show; the video you see here has been edited from a recording of that show. Got another question? Go to the Q&A page

I'm thinking fence.

I found this: http://www.instructables.com/id/DIY-Wind-Powered-Water-Pump/?