What is this gardening tool?

its a japanese style weeding knife called a hori hori

here is a link

http://www.amazon.com/Japanese-Garden-Landscaping-...

Skeeter's answer is the most correct. I've seen these used in oriental agriculture as a multi-purpose tool. It certainly isn't a builder's tool, the clue is in the name on the handle, 'Farm Master'.

Edit. The answer stating it's a builder's tool has now been altered to say it's a farmer's tool, in case there is confusion over my comment.

Edit 2. The answer that stated it was a builder's tool and then changed to state it's a farmer's tool for churn scraping has now been altered to say it's a beekeeping tool. This is so confusing!

A hori hori has a serrated edge, which your's appears not to have. Yours DOES look like a beekeeper's knife.

It is called a uncapping knife. Used by bee keepers to scrape honey away from they trays. Since it was an old orchard, they had to have had bees to help pollinate their crops.

http://www.rubylane.com/item/167844-10682/Woodmans...

http://www.beeculture.com/storycms/index.cfm?cat=S...

http://justtwofarmkids.com/2010/02/12/our-first-ho...

Machete?

corn knife