most of the companies in my area use a sulfer coated urea granular then a liquid ( not sure what ) for weed control. the liquid weed control knocks out weeds in a few days, you just can't get that with a granular.
problem with granular (pellet) weed controls is keeping them on target, the weeds. They tend to blow off with the slightest breeze or fall off target as you walk behind your spreader. Liquids stay on target...they have the same active ingedient but the water carrier allows you to 'paint' the weed control onto the target weeds.
charging for liquid is no different than granular. you got to know your costs (overhead) and add in profit
So you can charge the same from a 1\4 acre lot.....by the way,.,,,hey guys,,ive been charging 50$ per application for a 1\4 acre lot and including a five step program,,,is this a good idea,,is the price in line?
Nah, you should be charging $5 for a 1/4 acre. What you charge is up to you. If you think you're making money at what you're getting paid, then it's enough. If you're getting tons and tons of calls, mostly likely you're cheaper than everyone else and that's why people are calling you. If you've got all the work you can handle, and a few people are calling you, you're probably right in line with everyone else, or maybe even a little higher.
I know Chem-Lawn sent me a flyer for $24.95 for 5,000 sq. ft. $50 for 10,000 sq.ft is probably right in line.
I try to get .004 / sq. ft., so 10,000 would be $40.