Search Results for: Lacewing/feed/Common house mite

Ladybugs

…e a kind of beetle. Therefore, like all other beetles, they go through the common beetle stages, egg, larva, and pupa to a beetle. During spring, the adult ladybug lays its eggs close to a food source. This food source is often a colony of aphids. The eggs hatch in just 3-5 days, where the larva will nourish on the aphids over the next few weeks, after which it pupates. The pupa sticks to the surface and is completely immobile. A few days later, t…

Wharfborer

…longhorn, but the wharf borer beetles only grow in moist wood, unlike the house longhorn beetles. When seen in a house this beetle may have come in from outside, having emerged from ships’ timber or wharves, and it also thrives in piling and in structural timber in damp cellars. It is not uncommon for such timber to be so damaged as to require replacing. The new timber should be impregnated and efforts made to reduce the humidity, possibly by imp…

Scent

…been apparent to anyone who has crossed the tracks of a marten is a not uncommon visitor to the lofts of houses in the country and these produce a secretion from glands at the base of the tail, which has a typical carnivore smell. The marten produces this secretion when frightened, in exactly the same way as a skunk, and it serves as a scent marking, for these animals communicate with each other by scent. It is a curious fact that the rank carniv…

Cis boleti

…ubt about where they come from. It is however particularly annoying when a house or flat is suddenly found to be teeming with these small, dark beetles. The larvae live in fungi of the type that grows on stumps and fallen trees, and that may be taken home for decorative purposes. The beetles emerge from the fungi through round holes, often long after the decoration has been put aside and forgotten, and one wonders where they have come from. Some o…

Centipedes

…people and maybe bite, but the venom claws cannot penetrate the skin. The house centipede, Scutigera coleoptrata are located in the Mediterranean countries, where it is often found indoors. Centipedes Unlike the Danish species, these can bite through the skin of thin-skinned areas. The bite can be felt and there may be swelling, but it is by no means dangerous. House centipedes are occasionally carried to the cool climates of the north and have b…

Caredrina clavipalpis

…se. In the wild these larvae live on grasses and reeds, and they reach the house in the thatching material. It is nearly always the fully grown larvae which appear in this way, as they wander out of the roof in the autumn to find a suitable place to spend the winter. Occasionally they gnaw their way into various materials where they re- treat for the winter, and then pupate in the following spring and emerge as moths. The adult moths will not lay…

Woodpeckers

…ber, and nearly always do this in order to make a chamber to spend the night in. In some cases they apparently run amok and hack one hole after another. The most likely explanation is that if the result is not satisfactory they will try again and again. Desperate house owners have been known to shoot woodpeckers, even though they are now totally protected in most countries. Normally woodpeckers can be deterred from these attacks by hanging up stri…

Control

…out making the hornets nervous see, you can live with a wasp’s nest in the house or garden. In many cases, it is impractical; especially there are children in the house. Then eradication is necessary. A free-hanging hive can be neutralized by spraying an insecticide containing pyrethrin I and II + piperonyl butoxide into the entrance hole. The pyrethrins instantly confuse and paralyze the hornets and prevent them from using their alarm signals. Du…

Prevention of bites and stings

…mple, be sprayed on to shoes and socks if one has to enter a flea-infested house. Pyrethrin is also included in some of the fumigants which may prove very effective in keeping mosquitoes away. Insecticides Certain insecticides, obtainable from the chemist, can be used directly on the skin or in the hair, and these are effective against mites and lice. Other pests, such as fleas, ticks and bed bugs, only attack from time to time, and so it is not s…

Cluster fly

…ey are not iridescent like the ordinary blowflies, but are more like large houseflies, and can be recognized by the numerous small, golden hairs on the thorax. Their life history is quite different from that of the ordinary blowflies, and they do not visit foodstuffs in the house. They lay their eggs in the soil, and the newly hatched larvae bore their way into earthworms, where they live as parasites. During the summer the adult flies remain outs…

Spiders

…pecies can bite in such a way that it is felt. One example is the domestic house spider, Tegenaria domestica, and the cross spider, Araneus diadematus – two major species which are known to live in and around most Danish homes. Fig. 99. Domestic house spiders are seen indoors twice a year. Bites from large spiders can cause intense swelling, which can last for a long time. A spider bite, which a person might have gotten in bed while sleeping, may…

Prevention and control

…Fig. 44. Louse flies are present from May to August, however they are mostly common in June. One should not refrain from having birds on the house out of fear for louse flies. The risk of them getting inside the house is, after all, very little. If they show up, they are easily eradicated with one of the usual pesticide sprays with pyrethrin. Treating nest environments with an insect powder will usually stop a louse fly infection….

5. Non-chemical control measures

…with light traps. Light traps have been a disappointment when it comes to common house flies. Light traps in food industries are not a guarantee against pests, but when strategically set up with a sluice system in doorways, they can reduce the risk of insects flying in from outside. Light traps should be inspected frequently, and can also provide a clue as to which animals currently operate in the premises. Outdoor light traps will attract more i…

Small black or garden ant

Latin: Acanthomyops niger, lasius niger Preferred common name: Common black ant Small black or garden ant Tender woodwork that has served as part of a nest of black garden ants. The surface gets a typically sanded structure Several of the ants which otherwise live in the ground will occasionally build their nests in damp timber in the house, and these include the garden ant. They will only start to gnaw their way into timber which has already bee…

Fungal mosquitoes

…in exceptionally large numbers. They are even harder to get rid of in greenhouses. Often there are also several plants in the green house, which attract the fungal mosquitoes. Prevention and pest control One way to prevent the occurrence of fungal mosquitoes is not overwatering the plants. If they are already present in a potted plant, do not water the plant, allow the soil to dry or simply only water it from below. By doing so, the surface of the…

Bed bugs

…house: “Mean wife, smoke and bed bug” (Peder Syv, approx. 1680) Fig. 16. A common bed bug dreaming of the old days. (Usinger) Where in the system do bed bugs belong? Bed bugs are insects and therefore belong to the largest class of living animals. Currently, about 1 million different species of insects have been described and it is expected that there are 10 million or more, still unknown. Among other things, the insects are characteristic of havi…

Zygiella x-notata

…garden spider. Zygiella x-notata is a smaller orb-web spider which is very common in the house, sometimes building its web in a window. The spider itself varies somewhat in pat- tern and coloration, but normally it is grey-brown with a greyish pattern on its abdomen. In the circular web it is characteristic that a section is missing, .and in this area the spider draws out a thread which leads to its hiding-place. This thread acts as a signal line….

Lice in dogs

…ther species of canine lice, the biting lice, Trichodectes canis, are more common than the sucking lice. It is not a bloodsucker; however, it still drinks blood. It bites a hole on the skin and drinks blood from the wound. The dog’s biting lice are up to 1.7 mm long and have a large, rounded head. They live on the head, neck and ears of the dog. With well-groomed, well-nourished dogs, this species of canine lice is rare. Common to the two types of…

Clothes moths

…oday as they were earlier, but there is still food enough for them in most households. The female moths do not take food for themselves, and they are not like their larvae equipped with jaws to chew. This means that clean clothes in tightly closed bags of paper or plastic are effectively protected against moth infestations. The extermination can in most cases be done by placing the infested goods in a freezer for a few days. Washing them in the wa…

Where do the biting and irritating organisms come from?

…n bugs Forest flies From dog or cat, or from their quarters: Fleas Certain mites From other humans: Itch mite Head lice Body lice Crab lice Human fleas From foodstuffs: Certain mites When travelling (in hotel rooms): Bed bugs Fleas From second-hand furniture or paintings: Bed bugs From public lavatories: Crab lice At home, after being in garden or woodland: Animal fleas Ticks Flower bugs The location of the bites on the body can in some cases reve…

People’s reaction to the bite

…’s back. The symptoms of cheyletiellosis are not so specific, that the fur mite bites can be diagnosed from the skin symptoms alone. Experiments have been carried out in which people allowed themselves to be bidden under controlled conditions, however, the results only showed that the reactions of the tested people varied significantly. Bite marks. When a fur mite bites a person for the very first time, s small red spot may appear on the skin. It…

Mode of transmission between humans

…th another person is the main cause of transmission. On the skin, a female mite moves at a rate of 2 1/2 cm per minute. When away from the skin, it is badly off. Its movements are slower. At room temperature, it can only just wiggle the legs and at 16 °C it is immobilized. If you put on underwear or gloves, which an infected person has just removed, you can be infected. If a few hours pass, the risk of infection is small. People are not infected f…

An unusual family

…will see up to several mites at once. There are both male and female water mites. The fertilized female mite finds an insect larva (or, in the lack of a better host, a human), which she latches onto and then injects the mouth parts into the skin. After a few hours her abdomen swells up and she is sought out by one or more males. The males then spend the rest of their short lives to crawling on large abdomen of the fertilized female. When they get…

Mites

…orresponding to a relative humidity no higher than 62%. At lower humidity, mites die and the growth of the microorganisms they feed on, stops. It is also this fact that is mainly used in the prevention and control of pests. Pest control through poison is possible but difficult because several of the species that are in foods, may form special phases – called hypopus or deutonymph – which are more resistant to dehydration, starvation and insecticid…

Biology

…s are attached to the cage. The eggs are laid in the hiding places and the mites hide in them while molting. A female mite lays 10 eggs at a time. Each portion of eggs requires a blood meal. From the eggs, small, six-legged larvae hatch. These larvae do not feed because their mouth parts are too short to pierce the skin of a host. After the first molting they become eight-legged nymphs that suck blood, but that do not reproduce. Two molts later th…

Temperature

…r effects on animals when it is cold. It is just opposite with insects and mites. When it comes to the possibilities of survival and reproduction, insect and mite temperature reactions are divided into the categories too cold, suitable or too hot. Too cold. Some storage mites are active and can reproduce at 4 ° C. Insects in food require more heat to reproduce. As a rule of thumb, you can count on not being bothered by storage insects if the tempe…

Pigeon tick

…ay occasionally occur in the house. It is much larger than the red poultry mite and has a leathery, oval, red-brown body. The mouth parts are situated on the underside of the body and are not normally seen. Pigeon ticks which occur particularly in dovecotes have similar habits to poultry mites, but they can survive without food for a longer period. There have been cases where pigeon ticks have appeared 2-3 years after the birds are gone. They may…

Ear mites on dogs

…rin. Examine the findings for mites under a microscope. The veterinarian can often see the live ear mites in his otoscope when he looks into the ear. Ear mites in the fur can be seen in hairs that are brushed off and then examined under a microscope. {0}Mites in the fur can also be house dust mites, storage mites or fur mites. In co-operation with the veterinarian, the owner must decide whether the ear mites are the cause of the problem, or whethe…

Detection

…the web, the matter is clear. No other species makes these kinds of webs in the fur of dogs, cats and rabbits. If one or more mites are found, Fig. 80 may be used for comparison, but remember that there many other species of mites in fur. These include house dust mites, storage mites, ear mites, Listrophorus mites and random mites from the nature. When examined for fur mites, you can also look for lice and fleas as well as their eggs and excrement…

Symptoms

…o look for lice. Itching between fingers and wrist may be the work of itch mites, handling mite infected goods or something else entirely. When the pubic hair itches, pubic lice are definitely an option. Things that are inhaled may cause asthma and rhinitis. Of the animals mentioned in this book, dust mites and storage mites are known for causing these symptoms but there are many other options. The blood-sucking animals can infect humans with bact…

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