Which application device is used for applying small amounts of dust in targeted areas?

The bulb duster is specifically designed for applying small amounts of dust in targeted areas, making it the ideal choice for this application. It functions effectively by utilizing a simple squeeze mechanism that allows for precise control over the amount of dust dispensed. This enables the user to deliver the product accurately to cracks, crevices, and other confined spaces where pests may hide, thus ensuring better pest management.

In contrast, a spray nozzle and power sprayer are more suited for liquid applications and may not provide the same level of precision when it comes to applying granular materials. An electric rotary duster, while effective for broader applications, often covers larger areas and is less targeted in its approach, making it less ideal for situations requiring careful placement of dust.