What type of treatment involves applications to broad surfaces like walls and floors?

The type of treatment that involves applications to broad surfaces such as walls and floors is referred to as general treatment. This method is designed to address pest problems across larger areas rather than focusing on specific spots or localized issues. By applying treatment to broad surfaces, it ensures that the active ingredients have a wider contact area, thus improving the effectiveness of pest control measures against various insects or rodents that may inhabit those spaces.

In contrast, localized treatment targets specific problem areas or sources of infestation, while targeted treatment typically refers to applying solutions only to areas where pests have been actively observed. Preventive treatment involves strategies aimed at stopping pest issues before they occur rather than addressing ongoing infestations. Thus, general treatment is the most appropriate classification for the application of pest control substances to extensive surfaces within an environment.