Iowa Commercial Applicator License Practice Test

The statement regarding rinsing the measuring container after adding pesticide to the spray tank emphasizes the importance of proper handling and minimizing pesticide waste. When measuring and transferring pesticides, it is crucial to ensure that any residual product in the measuring container does not remain unused, which could lead to product loss and potential environmental contamination. Rinsing the container and adding the rinse solution to the tank helps achieve accurate application rates and reduces the risk of leftover pesticide affecting the environment. This practice supports safe application and adherence to label instructions regarding usage and disposal.

Other options may contain practices that are less ideal or safe in terms of pesticide handling. For instance, metal utensils can corrode or react with some chemicals, which poses risks, while measuring dry formulations by volume may not always provide accurate dosages. Additionally, pouring pesticides above face level can result in spills or splashes that endanger the applicator, therefore, it is advised to handle them at a safer height.