We are unsure if you are asking about a better pump sprayer for better application and reach with the spray, or if you are asking about a better product for control of carpenter bees. For a sprayer with better reach than a general hand pump sprayer, you could look at using the
Chapin Slide Pump Sprayer which will allow a spray reach of at least 30 feet. If you are looking for a product that could be a little better than the Suspend SC you are currently using, they
Cyonara 9.7 is a great cost effective option that will hold up to the outdoor elements a little longer and sit on the surface more for better coverage and control. Or you could get our complete
Carpenter Bee Kit as well for the best control over the entire population in and on your home.