Pest Organisms / Brown-banded Cockroach
Biology
A female fastens her quarter-inch, light-brown egg capsules (oothecae) out of sight — on ceilings, furniture undersides, or in dark closets, often several stuck together — where the eggs sit a few weeks before the nymphs emerge. Source: http://ipm.ucanr.edu/PMG/PESTNOTES/pn7467.html Over her life she lays on the order of 14 capsules, each holding roughly 14–18 eggs. Source: https://entnemdept.ufl.edu/projex/gallery/dl/cockroaches/text/brownbanded_cockroach.htm Egg-to-adult development averages about 160 days, and an adult may live more than 200 days. Source: https://entnemdept.ufl.edu/projex/gallery/dl/cockroaches/text/brownbanded_cockroach.htm It adds up fast: one female and her offspring can yield over 600 roaches in a year. Source: http://ipm.ucanr.edu/PMG/PESTNOTES/pn7467.html Adult males can fly when warm; females cannot. Source: https://entnemdept.ufl.edu/projex/gallery/dl/cockroaches/text/brownbanded_cockroach.htm Source: https://hgic.clemson.edu/factsheet/cockroach-control/