Which applications do not require a spray permit?

The correct answer indicates that applying herbicides to lawns through basal treatment does not require a spray permit because this type of application is often categorized as a low-risk treatment method. Basal treatment typically involves applying herbicides directly to the base of a plant, which reduces the likelihood of environmental exposure and potential drift. This method is generally seen as more confined and targeted, allowing for effective control without the extensive requirements that come with broader pesticide applications.

In many jurisdictions, specific regulations are in place that exempt certain low-risk application methods from needing a spray permit, acknowledging the importance of practical, safe practices in everyday lawn care. The requirement for a spray permit usually stems from higher-risk applications that could pose significant risks to human health or the environment.

The other choices reflect broader and more traditional application scenarios that usually require permits due to their higher potential impact. For instance, general agricultural applications often involve significant areas and higher volumes of chemicals, compelling the need for regulatory oversight. Standard ground application equipment and the use of various application methods typically involve considerations for environmental and human health risks, which warrant the need for permits to ensure safe practices.