Originally Posted by Deznuts05
I'll second that suggestion. That's what we use. It was found to be easier, cheaper, more consistent, and drew fewer bugs, than anything else, including basic sugar water.
Our spreader is actually a tank put on a wagon and the pump for the sprayer bars is powered by a riding lawnmower battery! Quite the operation, but it works amazingly well and makes for a very consistent surface.
Look for the grape soda in bulk packs of 3 liter bottles.