For German cockroaches in a cupboard, the recommended treatment is a chemical crack-and-crevice treatment.

• A. False
• B. True
• C. Only Fogging
• D. Do Not Treat

Answer: (B)

Targeting roach harborage with a residual chemical application is the key idea here. German cockroaches hide in small cracks, seams, and cupboards, so applying pesticide into those cracks and crevices reaches the places they actually use and continues to work as they cross treated surfaces. This provides longer-lasting control and keeps pesticide away from food areas, which is important in a kitchen setting.

Fogging might kill some roaches that are exposed, but it doesn’t reach the hidden ones and doesn’t leave a lasting residue on the surfaces they use, so it’s less effective for sustained control in a cupboard. Do not treat is not appropriate because the infestation would continue to grow without intervention. So a chemical crack-and-crevice treatment is the best-fit approach here because it directly targets the roaches where they hide and provides ongoing suppression.