Which of the following practices can enhance pesticide application safety?

Using backflow protection devices is a critical practice for enhancing pesticide application safety. These devices are designed to prevent the backflow of pesticides into water supply lines, thereby safeguarding groundwater and other water sources from contamination. In agricultural and pest control settings, backflow can pose significant risks not just to the environment, but also to public health. By implementing proper backflow prevention measures, applicators ensure that pesticides are safely contained and do not inadvertently enter areas where they could cause harm.

The importance of backflow protection is underscored by state regulations and best management practices that aim to protect water resources. This practice therefore enhances both the safety of the applicator and the integrity of the environment.