ISCEP 2026 At Sunway Putra Hotel 17-18 August 2026
ABSTRACT
POSTER PRESENTATION ABSTRACT
P30
LABORATORY OBSERVATIONS ON OOTHECAL FORMATION AND NYMPHAL EMERGENCE IN GERMAN COCKROACHES (BLATTELLA GERMANICA)
Ezita Qaisara RIDZUAN', Nur Amalina KAMARUDIN', Noor Darliah SIKANDAR, Norlaili MISRAWI', Mohammad Farizul MOHAMMAD FATIHI, Fatin Nur Adlina ROZAIDI', Aimi Afiqah MOHAMMADIN', Nurulhusna AB HAMID
'Medical Extralay Unit, Infectious Disease Research Centre, tute for Medical Research, National of Health, Selangor, Malayala
Entomology and Pest Section, Tawau District Health Office Chang Thain Road, Taa Sabab na [email protected]
Peter Presections
Infestations of the German cockroach (Blattella germanical present significant public health concerns due to its role as vectors of pathogens linked to food contamination. The need to understand their life cycle and reproductive biology is crucial to support effective biological research and pest control strategies. This study aimed to optimise colony management through evaluation of reproductive performance, offspring production and survivability of B. germanica under controlled laboratory conditions. Individual females were paired with a single male and monitored from adult emergence until death Parameters observed included adult female span, ootheca production and incubation period, nymphal development duration, and offspring viability Results showed that adult females lived for an average of 9118 28.84 days and produced 344100 oothecae during their lifetime, with an average of 35.34 ± 9.96 successfully emerged nympia per female. Overall hatchability demonstrated strong reproductive viability (103 viable vs. 28 non-viable oothecael Nymphal development to full adulthood required an average of 42.75 ± 845 days, resulting in 3184 ±6.52 surviving adult afspring per female with an almost equal sex distribution (18.21 6.48 males to 1663-365 females). The high egg viability rate [+78.6%) and rapid nymphal development time (42.75 8.46 days) underscores the reproductive efficiency of this species. These baseline quantitative data contribute to population dynamics modeling and provide practical, mechanism-based guidelines that enhance the efficiency reproducibility, and biological integrity of B. germanica colony management for research and pest management applications
Keywords: Bello germanica File table reproduction, fecundity survivability colony mangement
INTERNATIONAL SCIENTIFIC CONFERENCE ON ENTOMOLOGY AND PEST SCEP) 2006