How are effective ULV droplets characterized in terms of size for cockroach control?

Effective ultra-low volume (ULV) droplets for cockroach control are best characterized by their size, specifically in the range of 5-15 microns. This size range is optimal for achieving the desired distribution and coverage of the pesticide in the environment. Droplets of this size can remain airborne for longer periods, which enhances their ability to reach target areas where cockroaches may be hiding or moving.

These smaller droplets tend to drift less and can easily penetrate cracks and crevices, increasing the likelihood of contact with the pests. Additionally, they can effectively adhere to surfaces without excessive runoff, ensuring that the pesticide has sufficient time to take effect on the cockroach population.

While other size ranges mentioned may also be used in different contexts, they either lack the effectiveness or specificity needed for this particular application, which targets cockroaches effectively.