…brown stripes around pipe penetrations, as these can be excrement from the cockroach. The cockroach is nocturnal as described. Therefore, it only appears in the dark. If you suspect that there are cockroaches in a room, leave the light off for some time. When you suddenly turn on the light, you will probably spot the cockroaches darting across the floor to their respective hiding places. It may be necessary to control the cockroach with chemical p…
Search Results for: Dusky cockroach
German cockroach
…ot a common phenomenon in Denmark – and yet. In Denmark we find the German cockroach, which is the most common house cockroach here. This pest is related to grasshoppers and crickets and do have common characteristics. Appearance Typically, the German Cockroach, also known by the name Blattella germanica, can be recognized by the oval and flattened body as well their characteristic legs. This species of cockroaches can grow up to 1.6 cm long and t…
(3) The German cockroach and the forest cockroach
Dusky cockroach The German Cockroach The German cockroach is hardly more common in Germany than anywhere else in the world. It lives in the wild in tropical forests. As a synanthrope species in colder regions it favours especially indoor environments that are both warm and humid. Outside the tropical forests the German cockroach lives in bakeries, greenhouses, hospitals etc. It spreads between houses by heat ducts. The forest cockroach tolerates…
Dusky cockroach
…s commonly found indoors come from warmer climates. On the other hand, the dusky cockroach occurs throughout Europe from Lapland to the Mediterranean. These small, active cockroaches live mainly in woodland and on heathland where they run around among vegetation on the ground; they also fly well. In Lapland they are very common ‘domestic’ animals in the tents and further south in Europe they may occasionally occur indoors. They are frequently seen…
The Oriental cockroach
…roach male Oriental cockroach, male Latin: Blatta orientalis. The Oriental cockroach is not as common as the German cockroach. It is shiny black and is up to 2.5 cm long. Elytrons are almost entirely missing in the females, but they cover part of the males’ abdomen. The Oriental cockroach cannot fly. It climbs poorly and is mostly found on the floor and often in the boiler room or basement. The preferred temperature is from 20 to 29 ° C. If there…
The German cockroach
…l and can be found throughout the rooms from floor to ceiling. Dispersal of the cockroach is quite passive. The insects are transported around in goods or empty packaging. The voids in beer cases for example are good hiding places for cockroaches. Cockroaches can damage food by chewing them, by contaminating them with their droppings and by the unpleasant odour that cockroaches have. In addition, it is generally poor advertising that cockroaches c…
German cockroach
…ive by way of special sense organs on their antennae. Life cycle of german cockroach In many parts of northern Europe cockroaches occur in bakeries and restaurants, and also in hospitals, canteens, food factories and many private kitchens. Normally cockroaches cause no real damage. It has been suggested that they transmit disease but this has not been directly proved (see also p. 55). On the other hand, there is a need to be watchful, for several…
Oriental or common cockroach
…its it in a dark, sheltered place and after about two months it splits open and the small nymphs crawl out. Life cycle of common cockroach aka oriental cockroach…
Cockroaches
…ckroaches can appear months after the last adult is exterminated. American cockroach The largest of those cockroaches that we occasionally encounter is the American cockroach (Periplaneta americana). Both sexes have elytra that are longer than the body. This cockroach is often introduced from overseas, and a few American cockroaches are lucky enough to escape to a place where it is hot and humid, perhaps in a heated greenhouse or conservatory, whe…
Index
…oth beetle, bolting Cocoa moth Cockroach, American Cockroach, brown-banded Cockroach, German Cockroach, Oriental Coffee bean weevil Common bean weevil Common black ant Common earwig Common house-mite Columba livia domestica Confused flour beetle Confusum, Tribolium Copeognatha Copra beetle Copra beetle, red-breasted Corn weevil Cosmopolitan blue bone beetle Crickets Cricket, house Cryptolestes ferrugineus Cryptolestes minutes Cryptophagus Dark flo…
Brown-banded cockroach
…Latin: Supella supellectilium) There are several other species of tropical cockroach which may suddenly appear in a warehouse or greengrocer’s shop, having been introduced with goods from warmer regions, but most of them quickly die in northern Europe. The brown-banded cockroach, which is now common in central Europe, has been recorded as breeding in south Devon and more recently in London. It now has a cosmopolitan distribution but probably origi…
The American cockroach
The American cockroach American cockroach Latin: Periplaneta americana. The large, beautiful American cockroaches are originally from central Africa, but have been shipped to the United States on slave ships. They are seen regularly in food, but do not thrive under Northern European conditions. A similar species the Australian cockroach is also found in food occasionally. Both species can only survive under special circumstances in temperate clim…
The brown-banded cockroach
…actually known as the TV beetle. Egg capsules containing 10-20 eggs, are glued onto the insects’ usual hiding places and this process is similar to that of the Oriental cockroaches. The brown-banded cockroaches’ offspring can therefore hatch long after the adults are exterminated….
Index
…efly larva Drosophila funebris Drugstore beetle Dryocopus martinus Dry rot Dusky cockroach Earthworms Earwig Ectobius lapponicus Empicoris culiciformis Enicmus minutus Ephestia cautella Ephestia elutella Ephestia kuehniella Eptesicus serotinus Eristalis tenax Ernobius mollis Euscorpius italicus Falco tinnunculus False scorpion Fan-bearing wood-borer Fannia canicularis Firebrat Flat grain beetle Fleas faeces Flies, faeces Flour beetle Flour mite sc…
Cockroaches
…man cockroach (top), oriental cockroach, American cockroach, brown-striped cockroach Cockroaches are also regarded as primitive insects, and fossil species known from the Carboniferous period some 250 million years ago are very like those known today. There are about 3,500 different species of cockroaches and the vast majority of these live in the open and almost never come in contact with man. A few small species are native to northern Europe (se…
American cockroach
…American cockroach Lat.: Periplaneta americana A species introduced into Europe with food cargoes. Both sexes have wings which are longer than the body. They thrive in warm places with a high humidity, such as greenhouses and conservatories, but will not tolerate cold or dryness….
American cockroach, Periplaneta americana
…A species introduced into Europe with food cargoes. Both sexes have wings which are longer than the body. They thrive in warm places with a high humidity, such as greenhouses and conservatories, but will not tolerate cold or dryness….
Faeces
…d by cloth. They are usually deposited as dark, roundish particles. German cockroach excrement everywhere Fly faeces are similar in shape and size to those of bed bugs, but usually somewhat paler. Blood-sucking flies may, however, produce faeces that are almost black. Flies usually deposit their faeces out in the open and often on objects hanging from the ceiling. Clothes moth larvae produce faeces which can be found together with their silken thr…
Methods of treatment in pest control
…ined in some places, but nowadays most people would find them rather ugly. Cockroach traps appear at intervals on the market but hitherto they have not proved very effective. Radio-active irradiation Broadly speaking such irradiation can affect insects in three ways. A relatively weak dose will increase the rate of mutation, a somewhat higher dose will sterilize the insects, and a really high dose will kill them. Insect populations have been succe…
5. Non-chemical control measures
…es with entrance holes and glue in the bottom. They will not exterminate a cockroach population, but they can help to keep the number down, and they can show where and in what numbers they exist on the premises. Sticky traps for rats and mice in the form of sheets smeared with a very strong adhesive are marketed in the United States. The method is unlikely to be accepted by many European countries. Appealing and deterrent fragrances and flavours:…
(8) The pharaoh ant and the common black ant
…nd humid environments. Its basic life demands are very similar to those of cockroach and it also live in the places where you would expect to find cockroaches. This ant’s small size and the large number of individuals which exist in a colony, allow the pharaoh ant to reach far in large facilities. The common black ant is not synanthrope anywhere because it depends on aphids. Normally it lives outdoors, but in cases where a colony is located below…
Insect development
…en the adult insect comes out of the cocoon it does not grow anymore. Tiny cockroaches may be cockroaches, which are not yet adults, while small flies flying around, are not the offspring of bigger flies. Fig. 3.5. The common house fly has complete metamorphosis in which the eggs become larvae. The larvae grow large and become pupae, in which metamorphosis into the adult insect takes place. Insect development and metamorphosis are controlled by ho…
Resistance
…he ‘old’ types. On the contrary, it has been shown that Dieldrin-resistant cockroaches, for example, have a reduced breeding capacity compared with that of the originally sensitive cockroach population. Resistance is normally developed only to the particular poison that has been used, or to poisons of the same type, e.g. the chlorinated poisons. In such cases it should be possible to find a substance with a different composition which will prove e…
Cockroaches
…ies live out in the open and do not come into contact with humans. Usually cockroaches are primarily tropical insects. The cockroaches which now live with us in houses probably came here a few hundred years ago. Cockroaches are rather large insects with biting mouth parts and long, very movable legs. When they have wings, the forewings are large and leathery, while the rear wings are folded, fan-shaped wings underneath them. The development takes…
The extermination of cockroaches
…ic boxes with hinged inlet openings for cockroaches. They contain a combination of bait attractants (the aforementioned pheromones), and insect venoms. They are placed or hung in places where cockroaches live, and they are suitable for the control of small cockroach populations and as part of the extermination in which other measures are included….