Search Results for: American cockroach

Brown-banded cockroach

…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…

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…

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…

(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…

American Dermestidae

…they live off dead animals and thus help to clean up nature. Although the American dermestidae is virtually omnivorous, it can actually live for months without consuming water or food. Just as practical the dermestidaes can be in the wild, just as harmful it can be within our homes. The American dermestidea is as mentioned not picky. It can quickly consume everything from the contents of your kitchen cabinets to your wardrobe – or mash up your ho…

Cockroaches

…at new cockroaches 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 conserva…

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…

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….

Index

…eetle Clavicornia spp Cleridae Cloth 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 Cryptoles…

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…

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….

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…

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…

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…

Dusky cockroach

…only 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 in we…

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….

Cockroaches

…er Blattodea) Egg capsules of: German 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…

Index

…fenestralis Cis boleti Cluster fly Clytus arietis Coccinellaseptempunctata Cockroaches faeces scent Cocoa moth Codiosoma spadix Coffee weevil Coleoptera Collembola , Colletes daviesanus Columba livia domestica Common bean weevil Common clothes moth faeces Common cockroach Common flower bug Common furniture beetle Common gnat Common house mite Common house spider Common wasp Cone bug Coniophora cerebella Copeognatha Corvus monedula Corynetes coerul…

House dust mites

…he European house dust mite called dermatophagoides pteronyssinus, and the American house dust mite called dermatophagoides farinae. However, they are most often referred to as European and American house dust mites. When it comes to their effect on allergy sufferers, however, there is not much difference and one can just as well exercise proper prevention in general instead of trying to focus on just one species. Biology and behavior House dust m…

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:…

Index

…onemus rakowiensis Tegenaria domestica Tentacles Thaumetopoea pinivora The American house dust mite The blue jellyfish The crab louse The Eastern Pine Processionary The European adder The European house dust mite The European viper The Greater weever The lesser weever The pigeon mite The red jellyfish The velvet mite The water scorpion Thrips Thunderblights Thunderbugs Thunderflies Thysanoptera Tick-para1ysis Ticks To feel lousy Tovinger Trachinus…

Occurrence

…dirty-white or grayish color. Lice on black people are dark and the North American Indians’ lice are reddish. The lice also make more permanent adjustments to the scalp hair, found in different human races. Hairs on black people have oval cross section. Lice on black people are so well adapted to grip the hair that they cannot live in Scandinavian hair which has a more round cross section. People of the Eskimo race have lice, which are slightly d…

Spiders

…his does not however, apply to species living in the temperate parts of Europe. Spiders play an extremely important part in keeping the populations of certain insects down to a reasonable level. An American spider expert has calculated that in many parts of the world man would have great difficulty in surviving if there were no spiders to keep the insects in check….

Mill or flour moth

…came originally from India. It was first found in Europe in about 1877 in American wheat. Nowadays there are few concerns dealing with flour and cereals which do not suffer from time to time from the depredations of this kind of moth. It may also become a menace in private households. The adult moths fly about at dusk, and the females each lay up to about 300 eggs in the flour. When the eggs hatch the larvae start to feed immediately. All the tim…

Bug Indentification

…at we thought was known about the animal, when it got its name. German and American cockroaches are not specifically related to these countries, while the Australian spider beetle actually is an immigrant from Australia, which is more known among us now than the “ordinary spider beetle”, that is the white-marked spider beetle. There is a certain preference for choosing common names that allude to the way insects seem to people, even if the insect…

Carabus nemoralis

…eeding on worms, slugs and insects, and some species have been released in American forests to control injurious moth larvae. These beetles handle their prey in a characteristic manner, for much of the digestive process takes place outside the animal. They regurgitate dark brown digestive juices on to the prey, which is thus paralyzed. Its tissues gradually become liquefied and this liquid is then sucked up. Carabids or ground beetles spend the da…

Powderpost beetles

…pecies is Lyctidae linearis, whereas Lyctus brunneus is originally a North American species. Lyctus brunneus can be found all over the world, and it is also common in Denmark. Appearance The two species are similar in appearance. They are elongated, color vice reddish brown to black. They have two antennae that form a small curl at the end. When the beetles are fully grown, they are 2.5 – 8.0 mm long, at the same time they are slightly flattened….

The khapra beetle

…tle has become one of the world’s most unpopular storage pests. The khapra beetle was introduced in the United States at some point in 1952 – 1953. Here it spread quickly to a large part of the American malt houses, mills and grain storages and it was expensive to exterminate. Today the khapra beetle is still undesirable in imports in most of the world….