Which factor is crucial for reducing risks during pesticide application?

Keeping communication channels open is crucial for reducing risks during pesticide application because effective communication ensures that everyone involved in the aerial application process is aware of potential hazards, current weather conditions, and safety protocols. This helps to coordinate activities among ground crew, the pilot, and any other personnel, minimizing the chance of accidents or exposure to harmful chemicals.

Additionally, maintaining communication allows for immediate reporting and addressing of any issues that arise during the application, ensuring that all team members are informed and can act quickly to mitigate risks. This collaborative approach is essential for safe operation in environments where pesticide exposure can pose serious health and environmental hazards.

In contrast, the other strategies mentioned do not enhance safety; for example, using older equipment can lead to malfunctions or inefficiencies, working without protective gear increases the likelihood of pesticide exposure, and relying solely on past experience may overlook new safety protocols or advancements in best practices.