Which of the following application methods involves gluing pesticides into small locations?

Crack and crevice application is the method that specifically involves applying pesticides into small, hard-to-reach areas where pests may hide or nest. This technique is particularly effective for managing pests in small spaces, such as along the edges of floors, around baseboards, and in various structural gaps, because it targets the areas where insects are likely to enter or breed.

By using this method, the applicator can deliver the pesticide directly to the source of the pest problem, minimizing the risk of pesticide exposure to non-target organisms while maximizing its effectiveness in controlling the pest population. This precision helps in achieving more efficient pest management and can lead to reduced pesticide use overall, as only the targeted areas are treated.

In contrast, other application methods like broadcast, band, and directed spray serve different purposes. Broadcast application covers large areas uniformly, band application applies pesticides in a narrow strip, and directed spray targets specific plants or areas, none of which focus on the precision that crack and crevice application provides.