Home/Pest library/German vs American Cockroaches: Why Supermarket Sprays Fail
General Pest5 min read

How to handle a pest control emergency before the pros arrive

Over-the-counter bug bombs often scatter cockroach populations into adjoining walls. Learn why targeted insect growth regulators are essential.

ExPest Team
6 Sept 2026
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Over-the-counter bug bombs often scatter cockroach populations into adjoining walls. Learn why targeted insect growth regulators are essential.

1. The Repellent Effect of Aerosols

Supermarket sprays act as repellent irritants, driving female roaches deeper into motor housings, dishwasher voids, and wall frames.

2. High-Potency Indoxacarb Gel Baits

Professional baiting uses palatable gels that cockroaches consume and carry back to harbourages, eradicating the entire colony via the domino effect.

3. Insect Growth Regulators (IGR)

IGRs prevent juvenile cockroaches from developing into reproducing adults, breaking the reproductive cycle permanently.

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