What screen size will allow the largest granules to pass through?

The choice of a screen size in this context refers to the mesh used in sifting or filtering granules. A lower screen number corresponds to a larger mesh opening, which means that larger particles can pass through.

In this scenario, a 20 screen will have larger openings compared to a 30 screen or a 40 screen. Consequently, the larger granules will more readily pass through the mesh of the 20 screen than through the finer meshes of the other options.

Understanding screen sizes is essential in pest control, particularly when it comes to handling and applying granular pesticides, as the right screen size ensures that the desired application rate and uniformity are maintained without unintentionally blocking larger particles that are critical for effective pest control.