How long do smokybrown cockroaches live?
The smokybrown cockroach is long lived requiring 2 or more years to reach adulthood under outdoor conditions. It takes 50-80 days for the egg case, which usually contains 20-26 eggs, to hatch under warm conditions (greater than 70°F). The young, or nymphs, require about 250 days to reach adulthood at an optimum temperature of 85°F. Because the temperature at night and during the winter may be substantially below this, the nymphs require 2 or 3 years to reach adulthood outdoors. Like most other insects, the growth rate of smokybrown cockroaches depends on the temperature. When it’s cool, insects barely grow at all, but when it’s hot, they grow like crazy. Once they become adults, they probably live until the subsequent winter kills them. During this time females can potentially deposit 20-30 egg cases. However, inadequate food, low temperatures, and other problems may mean the average female cannot produce near the maximum number of egg cases. When the nymphs hatch they are black with w
