Which type of formulation is typically solid and used for quick pest control?

The correct answer is dust. Dust formulations are typically solid and can be used effectively for quick pest control due to their fine particle size, which allows for easy application and rapid uptake by pests. When applied, the dust adheres to the skin of the insects, leading to their quick elimination once they come into contact with the active ingredient.

Dusts can penetrate cracks and crevices where pests often hide, making them particularly effective for targeting insects that are difficult to reach. Their ability to provide a quick knockdown is essential for immediate pest control needs, such as in cases of an infestation.

Granules, while also solid formulations, are larger and designed for a slower release of the active ingredient, making them less suitable for immediate pest control in comparison to dusts. Pellets share similar characteristics with granules in terms of size and release rate, thus also not being the best choice for quick action. Liquid formulations may provide quick results, but they are not solid and do not fit the specified criteria of the question.