On Tue, 08 Jan 2013 18:01:20 -0500, krw wrote:

Perzactly. I've seen them used on apple trees, too.

I like the idea of a truck mounted sprayer.

But there will still be tons of poison oak in the inaccessible places
like this one I snapped just today about 100 feet below where the
pictures were taken yesterday.
http://www5.picturepush.com/photo/a/...g/11917528.jpg

I don't think a truck can get down there, unfortunately.