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Mice
Mice reach sexual maturity within 35 days. Pregnancy lasts an average of 19 days. There are about 8 litters a year with an average of 6 young per litter. They carry disease, the worst being Salmonella, via their droppings of which on average is 50 or so per day. Over a 6-month period a pair of mice produces around 18.000 droppings, and 355ml of urine. |
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German cockroach
The reason that German cockroaches are such successful breeders is they carry the egg case (Ootheca) until 1-2 days within hatching. Each egg case produces between 30-40 eggs and they can produce up to 8 cases a year. Development time from egg to adult varies depending upon the environment. Adults can live on average 200 days.
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Bed Bugs
Female bed bugs lay 1-5 eggs per day with the white eggs being deposited individually in cracks or behind bed boards and on rough surfaces with an average total of 200 eggs; maximum eggs per day is around 12.About 3 minutes are needed for each blood meal. Development time egg to adult takes 21 days or so. With normal feeding these bugs can live up to 316 days. Humans are the preferred hosts for bed bugs but in their absence bed bugs will feed on poultry, rats and mice. Bed bugs have been found to be one of the hardest insects to eradicate.
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Rats
Reach sexual maturity in 2-5 months. Pregnancy lasts an average of 23 days. Average number of litters per year is 3-6 each containing 7-8 young rats. Food per day (approx. 10% of body weight) . They can carry many Diseases, Weil’s disease, and Salmonella via their droppings which is between 30-180 everyday. |
