Which type of formulation typically comes in solid form and is often spread on soil?

Granules are a type of pesticide formulation that typically comes in solid form and is often applied by spreading them on the soil. These formulations are designed for ease of handling and can provide a slow-release effect as they dissolve in moisture, allowing for extended pest control. This makes granules particularly useful for insect control in turf, gardens, and agricultural settings, where they can be applied directly to the soil surface.

In contrast, liquids are solutions that require different application techniques, such as spraying, and are not usually associated with direct soil application in solid form. Aerosols, which are often used for indoor pest control or for targeted applications, are packaged in pressurized containers for easy dispersal and do not come in a solid state. Emulsifiable concentrates are typically liquid formulations that form an emulsion when mixed with water, making them unsuitable for spreading in solid form. Thus, granules are specifically distinguished by their solid form and effectiveness when applied directly to the soil.