Extremely coarse spray nozzles are indicated by which color?

Extremely coarse spray nozzles are indeed indicated by the color white. This color coding system is part of a standardized classification that helps aerial applicators select the appropriate nozzle based on the desired droplet size, which is essential for effective and precise application of pesticides or fertilizers.

Extremely coarse nozzles produce large droplets that minimize drift and are typically used when a higher volume application is needed. This is particularly beneficial in specific conditions, such as windy weather or when targeting large areas where drift could impact non-target areas.

The other colors correspond to different droplet sizes: blue signifies medium-coarse, red represents medium, and black denotes a finer spray quality. Understanding the color coding helps operators achieve the best results while complying with safety and environmental regulations.