Understanding Cockroach Egg Cases (Oothecae): Identification by Species
German roach ootheca: light brown, 6-9mm, carries until 1-2 days before hatching (30-40 nymphs). American roach: dark brown, 8-10mm, glued to surfaces near food/water (14-16 nymphs). Finding egg cases means the infestation is reproducing. Each German roach female produces 4-8 egg cases in her lifetime—a single pregnant roach arriving in a grocery bag can become an infestation of 10,000+ within 6 months.
Effective pest control starts with accurate identification. Different pests require different treatment approaches, and using the wrong method can make the problem worse or create health risks for your family and pets.
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