Case Study: Resolving Severe American Cockroach Infestation

The Problem: A Roach Nightmare on Move-In Day

A homeowner recently relocated from Kuala Lumpur to Johor Bahru, excited to settle into their newly rented two-story terrace home. However, their excitement quickly turned to horror when they discovered large numbers of American cockroaches in their kitchen and toilet—on the very first day.

Determined to get rid of them, the homeowner tried a DIY approach, spraying household aerosol insecticide and putting traps bought from Mr DIY. Unfortunately, the roaches kept running around, and even after two days, the infestation remained just as bad.

Our Inspection: Signs of a Long-Standing Infestation

Upon inspection, we uncovered evidence that the infestation had been developing long before the homeowner moved in:
✅ Numerous cockroach ootheca (egg cases) hidden in the kitchen cabinets and storeroom
✅ Heavy stains of roach droppings inside the kitchen cabinet
✅ A strong, musty cockroach odor—a telltale sign of a large population
✅ Many live roaches, confirming the infestation was severe

This explained why DIY sprays failed—the problem was much bigger than a few visible roaches. The infestation had already deeply embedded itself in the home.

Our Solution: Baiting & Residual Spraying for Complete Eradication

Instead of relying on temporary fixes like aerosol sprays, we implemented a targeted two-step approach:

1️⃣ Baiting – We applied professional-grade cockroach bait in strategic locations. The bait is carried back to the nest, poisoning the colony from within.

2️⃣ Residual Spraying – We treated high-risk areas with residual insecticide, ensuring that any cockroaches coming into contact with treated surfaces would be eliminated over time.

The Results: Immediate Reduction & Long-Term Control

✅ Dead roaches appeared every day for a week—a clear sign the bait and spray were working.
✅ The homeowner was happy with the results, finally seeing an end to the infestation.
✅ A second treatment was conducted after a month to eliminate newly hatched cockroaches, since roach eggs (ootheca) are resistant to insecticide.

Why DIY Roach Control Fails & When to Call the Experts

Many homeowners try DIY sprays, but these only kill the roaches you see—not the ones hiding in cabinets, cracks, and egg cases. Without professional treatment, the infestation keeps coming back.

If you’re dealing with American cockroaches in Johor Bahru, don’t waste time on ineffective DIY solutions. Contact Pest Sensei today for fast, professional cockroach control!

📞 Call us now for a roach-free home!