When applying a liquid pesticide as a bottom treatment, from where is the spray rate released?

• A. By nozzle size
• B. From weighted hoses
• C. By pump pressure
• D. By water temperature

Answer: (B)

In a bottom treatment, the pesticide must be released at or near the bottom where the target is, so the discharge point is the weighted hose end that sinks to the bottom. The spray rate is controlled by and exits from that hose assembly, not from a nozzle on the surface or from pump pressure settings alone. Weighted hoses are specifically designed to deliver the chemical to the bottom and release the dose there, which is why the correct choice is that the spray rate comes from the weighted hoses. Water temperature and nozzle size affect other types of application, but they don’t determine the bottom-treatment spray rate in this setup.