What technique involves applying a pesticide as a fine spray or mist?

The technique of applying a pesticide as a fine spray or mist is known as space spray. This method is designed to disperse the pesticide in the air within a given area, targeting flying insects or providing a broad coverage over surfaces. It is particularly effective for controlling pests in open spaces or for creating a barrier against them.

Space spraying often involves using specialized equipment that atomizes the pesticide, creating small droplets that can travel through the air and settle on surfaces where pests are likely to be present. This technique allows for quick application and effective pest management in scenarios where rapid action is necessary, such as during an outbreak of flying insects.

In contrast, soil injection, soil drench, and soil incorporation focus on delivering pesticides directly to the soil, targeting pests that are either in the soil or affecting plants at their roots. These methods do not involve spraying pesticides into the air as space spraying does, which is why they do not apply to the question. Understanding the specific applications and techniques of pesticide usage is crucial for effective pest management strategies.