Herbicide sprayers are available commercially, but you're not going to land one without making your wallet shed a tear. If you have a large garden or orchard, though, it's very important to use an herbicide sprayer to eliminate weeds at their roots. So what's a green thumbed chap like you to do? Check out this video to learn how to make your own herbicide sprayer.
This instructional video provides you with an overview of building your own herbicide sprayer using commonly available commercial components.