Tips & Tricks: German cockroach inspection imperative to control

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April 27, 2016

Dr. Dina Richman

Dr. Dina Richman

German cockroaches (Blattella germanica) are generally nocturnal insects. They’ll venture out of their indoor harborages during the daylight hours only if their harborages are overcrowded or disturbed. They easily hide in very small cracks and crevices to evade humans.

Females produce 25 to 45 eggs every three to four weeks, and both males and females can live up to a year. They prefer warm, moist environments and eat starch, sugar, grease and meat. During food shortages, however, they will ingest soap, glue, toothpaste and one another.

German cockroach management starts with a thorough inspection. Place glue monitors against walls, in a corner of the floor, on a shelf, in a drawer, or under equipment and counters. One week of trapping at 10 or more sites should provide enough information for effective control. Pest managers can then decide on baits, dusts, flushing agents or liquid chemical control. Monitoring should continue throughout the control program.

— Dr. Dina Richman, Product Development Manager, FMC Global Specialty Solutions

About the Author

Dr. Dina Richman is product development manager of FMC Corp.

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