Which method is most effective for fleas?

• A. Broadcast
• B. Space
• C. Crack & crevice
• D. General

Answer: (C)

Fleas spend most of their life cycle in hiding places, especially in small gaps and along edges such as cracks in baseboards, under furniture, and carpet seams. A crack-and-crevice treatment delivers insecticide directly into those harborage sites where fleas and their immature forms reside, ensuring contact and providing more durable control. Broad broadcast applications treat open surfaces but often miss these hidden spots, while space or general sprays may give quick knockdown without lasting residual effect. Targeting the cracks and crevices directly addresses where fleas actually live, making it the most effective approach.