German cockroaches are the most common cockroach species found in
houses, apartments, condominiums, hotels, restaurants, and just
about any other kind of business in the United States that has a
cockroach infestation. German roaches are associated with a
variety of human illnesses as previously mentioned. German
cockroaches are so successful and therefore difficult to control
for a variety of reasons.
German roaches have a larger number of eggs per egg capsule than
other roaches. The female carries the eggs inside the capsule as
they develop into nymphs. Thus the nymphs that are born alive have
a much better chance of survival. German roaches exhibit the
shortest time from egg to sexual maturity. These factors combine
to give the German cockroach a huge reproductive potential. German
cockroach nymphs are very small, allowing them to conceal
themselves in the tiniest of cracks and crevices where they are
protected. A typical home or industrial kitchen has literally
thousands of protected cracks and crevices where nymph roaches can
hide. A typical female lives about one year. She can produce 4-8
egg capsules (ootheca) in that time frame. Each capsule carries
30-50 eggs. From egg to sexual maturity averages about 3-4 months.
If you start looking at those numbers, it is not hard to imagine
how a German cockroach infestation can explode in a matter of a
German cockroaches are also extremely adaptable as far as what
they can eat and the environmental conditions in which they can
survive. All of these facts combine to give the German cockroach
an almost unparalleled advantage in establishing successful
populations and in resisting control measures.
Control of German cockroach infestations requires co-operation
from the business/home owner and the pest control professional.
Once co-operation is established, and both parties agree to their
responsibilities and a well thought out treatment plan is
developed, cockroaches can be controlled and eliminated. If
co-operation does not exist, treatments will not be successful.
One time treatments for German cockroaches are typically not
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