What is the quickest means of knockdown for flea control in a lawn?

The quickest means of knockdown for flea control in a lawn is achieved through power spray. This method utilizes a high-pressure spray system that disperses the insecticide over a wide area efficiently. The application is quick and allows the insecticide to penetrate the foliage and reach fleas effectively.

Power sprays typically produce a fine mist that can cover large surfaces and reach areas where fleas may hide, such as grass blades and soil. This efficiency and coverage make it ideal for immediate knockdown of adult fleas, providing instant results compared to other methods that might require more time to take effect.

Foggers, while also effective, disperse insecticide in a fog form which may take a little longer to settle and act, making them less immediate in terms of knockdown. Hand sprayers and granular treatments are often slower as well, either due to labor-intensiveness or the need for moisture to activate the granules. Thus, in the context of needing a rapid solution for flea control in a lawn, power spraying stands out as the most effective approach.