Pump ups are kind of lame unless you spend 60-75 bucks.
I use an Ortho "Dial n Spray" hose end sprayer for weeds and bugs.
The cool part is --no measuring. Just pour your stuff in the sprayer, then set the dial for the mix that the label tells you.
Turn on the water and pull the trigger. Got some chemical left? Just pour it back in the regular container for next time as it is not diluted during the spray treatment.
The only way to go---About $10 as I recall.