Why is it important to keep spray nozzles clean during pesticide application?

Keeping spray nozzles clean during pesticide application is crucial primarily to ensure they discharge at the desired rate. When nozzles are clogged or dirty, the flow of pesticide can be altered, leading to either an undersupply or oversupply of the chemical being applied. This can not only affect the effectiveness of the pesticide but also pose risks to the environment and health if the application is not uniform. Proper maintenance of spray nozzles ensures that the pesticide is applied accurately and efficiently, achieving the desired results while minimizing waste and potential harm from excessive application.

Moreover, maintaining nozzle cleanliness also helps with the prevention of clogging, which indirectly supports the primary reason regarding discharge rate. Regular cleaning prevents buildup that could interfere with the spray pattern and delivery of the pesticide, contributing to overall application success.