What color code indicates a nozzle that produces spray droplets in the extra fine category?

The color code that signifies a nozzle producing spray droplets in the extra fine category is purple. This color coding system is standardized to help applicators quickly identify the droplet size produced by different nozzles, which is crucial for ensuring proper application rates and minimizing drift.

Extra fine droplets are preferred in certain situations, such as for specific pesticide applications where a lighter coverage is required or the target pest is sensitive to larger droplet sizes. Using the correct nozzle not only optimizes the efficacy of the product but also adheres to regulations designed to protect the environment and non-target organisms.

In contrast, the other colors in the coding system correspond to different droplet sizes, such as red for very coarse, yellow for coarse, and green for medium-sized droplets. Understanding this color coding is essential for achieving the desired results in aerial applications, and it highlights the importance of selecting the appropriate equipment based on the specific conditions and requirements of the task at hand.