Search Results for: White-shouldered house moth with its wings open

6. Chemical control

…esistance is a relative term and means in most cases simply that pests can withstand larger and larger doses of a particular insecticide. Control attempts that fail do not necessarily mean that the pests were resistant to the poison, although it is often said. Resistance can be viewed only by laboratory tests under standardised and controlled conditions. Animals can seem resistant when they keep moving after taking in the poison, but the explanati…

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…

Thaumatoniyia notata

…ler yellow; they do not visit foodstuffs and, in fact, are quite harmless indoors. These small flies will nearly always be attracted to the upper storeys of a house and very often to houses covered with ivy or Virginia creeper, for this type of dense vegetation is their natural habitat. The larvae feed on various grasses…

Control

…Stable fly control in stables follows the same procedures and is performed with the same insecticides as used against house flies. They are not resistant to the insecticides. Large numbers of stable flies, which have made their way into the living room, can be killed with an Aerosol-spray with pyrethrin I and II + piperonyl butoxide….

Bryobia praetiosa

…ust breed parthogenetically. These mites cause absolutely no damage in the house and they very quickly die in the dry climate. They are completely dependent upon the presence of plants on which they can feed. Normally they are only seen in houses where the lawn goes right up to the walls, so the most rational method of control is to create a break between lawn and wall. This can easily be done by having a strip of gravel or stone chips ½ – 1 m wid…

Mouse proofing

…acks and holes in the walls that are more than 7 mm across must be covered with fine-mesh netting; this would include ventilation openings. In prefabricated buildings it is important that the joints between the outer sheets are closed, for quite commonly there is free passage up under the lowermost sheets. Mice can climb up rough vertical surfaces (timber, bricks, cement etc.) and they can often find their way up into a cavity wall and reach the v…

Prevention

…an appropriate place where it can be in “quarantine” and check the content before it is brought inside. Clothes may be put directly into the washing machine, or a week or so in the freezer. If the suitcase or backpack has any suspicious cavities it can be sprayed with an insecticide. Used furniture poses a risk. The beautiful painting from the flea market or the bedside table from the container should be thoroughly checked before putting it in us…

General treatment

…lea problem by treating the person which has been bitten. Neither powder, nor sprays or ointment has effect in this regard. The only rational thing to do is to find the hot bed and eradicate the fleas, where they are found in the house. If the itching is so bad that there is a danger that you might scratch a hole, it may help some to apply a local anesthetic on the bite. The remedies that pharmacies sell for relief of sunburn are excellent for thi…

Pesticides and methods

…ime it had become clear that these repellents have many adverse effects on people exposed to them, not to mention their effect in nature. Insecticides for use in the house have one by one been removed from the market, so that today, there are no really powerful repellents…

(8) The pharaoh ant and the common black ant

…oors, but in cases where a colony is located below or adjacent to a heated house, the slightly higher temperature can cause the ants to become active earlier in the spring than it normally would. It forces the common black ant to find its food indoors until it gets warmer and aphids appear outside. The above mentioned examples (1) – (8) show that Synanthropy both qualitatively and quantitatively is made up by the interaction between the biology of…

Biology

…A female European pigeon tick lays 20-70 eggs at a time and the eggs hatch within a month. Long lives. What makes pigeon ticks so difficult to handle is their ability to survive for long periods of time without feeding. The life cycle usually lasts 2-3 years, but in cold environments the ticks can starve for several years. There are reports of abandoned pigeon houses in Germany, where there were still high infestations of pigeon ticks after 13 and…

Who will take care of the problem.

…ified. If you neglect to inform that you have bed bugs, you may incur a liability in damages if the animals spread throughout the property. It is the property, which, according to “the Danish Rent Act”, has an obligation to provide control. If you live in your own house you have to either take care of the problem yourself – further instructions can be found on the Internet – or you can turn to one of the companies that deal with this kind of pest…

Hedgehog fleas

…st and they die very quickly if they are taken into the dry climate of the house. Hedgehog fleas can infest dogs and cats if they are playing with a hedgehog or sniffs at a hedgehog nest, but hedgehog fleas cannot survive on these animals for long periods of time. If you are constantly infested with new hedgehog fleas from one particular corner of your garden, you must locate the hedgehog nest, which is probably abandoned, and treat it as well as…

Bird fleas

…ldren. Dogs and cats can get infested by bird fleas and drag them into the house. Bird fleas can also invade the home directly from birds’ nests in the roof or in a chimney, or they can sit on laundry, which has hung to dry in the garden near a bird’s nest. Furthermore, a typical situation in which to get infested by the fleas in the spring is while gardening. Nest boxes can contain hundreds of fleas. You get easily infested with the fleas while h…

Mould fauna

…mites, booklice and house flies which can be seen in foods are associated with degradation of damp, dead plant material in nature. Different materials such as hay, straw, grain, flour, rapeseed and oats are infested by practically the same mould-eating insects. This is due to the fact that these insects are able to eat various types of mould. In feed compounds mould fauna is supplemented with species that are particularly favoured by the fat and…

Dog fleas and cat fleas

…each year. It is not known why cat fleas have become so common in our parts of the world. The number of pets has increased and at the same time, it has become increasingly common for the animals to have access to all rooms of the house. Another contributing factor is the increasingly common wall-to-wall carpeting. It is difficult to remove flea eggs and larva from the carpets just by cleaning them. From this perspective, the flea problem is a sel…

Blowflies

…6-7 ° C. Two blowfly species Blowflies are generally heavily contaminated with micro-organisms. On average, there are three times as many bacteria on blowflies as on house flies. It is among others the bacteria of the genus Clostridium and Salmonella. Blowflies can smell meat and carcasses at a distance of several kilometres. In industries working with things that tempt blowflies, effective measures must be taken to block them out (see page 164)….

Prevention of dog- and cat fleas

…r. You can also get the product in the form of tablet which the dog or cat must swallow once a month during the flea season. In the spring, dogs and cats can bring bird fleas inside. Bird fleas can only survive inside the house for short periods of time, and consequently, control is rarely necessary. If the dog or cat suddenly is infested with fleas in April-May, be sure to determine the species before deciding if control is necessary….

Occasional visitors

…Many different animals may be brought into the house more or less accidentally, e.g. with fruit or flowers. It would be impossible to catalogue them all, but a few examples may suffice….

Bed mites

…es of asthma. It had long been known that some patients react violently to house dust, but it was not clear what substances caused the attacks. It has now been shown that these mites are widespread wherever man lives, and that it is the dust containing them that causes the more acute attacks of asthma in sensitive patients. It is not only the mites themselves but also their cast skins and faeces which produce the symptoms, and as these are easily…

Temperature

…reproduce. The hovering question is how long this temperature must be kept within products to make sure insect population in a product is eradicated. It may be a matter of days or weeks as there may be a wide variation in what individual insects and insect phases tolerate. Usually, we aim to heat the insects so much that the spread in their warm mortality is at a minimum. Similar arguments apply when you want to kill insects with cold treatment. I…

Gamasid mites

…These are very large, yellow-brown, active mites with long legs. Most of the species feed as predators on other mites and on small insects, but some, e.g. Kleemannia plumigera, feed on moulds. Now and again they occur in new houses that are still damp, or in lofts with damp hay or straw where they may multiply in large numbers, and find their way down into the house….

Brown dog tick control

…at the same time can make the dog sick. When in doubt, consult your veterinarian about the problem. In the surrounding environment. High levels of infestation demand more drastic measures. Treat the house with a cat flea repellent combined with a bed bug repellent because the brown dog ticks virtually hide the same places as these pests and they spread in the same way….

Suspected brown dog tick infestation

…to be removed. Caster bean ticks lose the ability to find a host when the temperature drops below 7 °C. If the dog has ticks when it is significantly colder outside, it may be brown dog ticks. High levels of infestation in the house and ticks (especially blood-filled, gray females) on walls and ceilings may be brown dog ticks. Ticks that are found on dogs that have been imported from or returned from a vacation in the South, could be brown dog tic…

A bit of history

…in 1928. Let us immediately state that bed bugs are not directly concerned with hygiene. As long as blood is available they do not care whether the house is clean or dirty. In the 1930s, Denmark seriously set in against bed bugs. To limit the spread, many municipalities and property companies made demands for bed bug certification when people moved from one apartment to another. The apartment and the furniture were examined by a fumigator, and if…

Introduction

…provided excellent living quarters for many animal species, whether in the house itself or in the outhouses used by the domestic animals. There was also woodwork to gnaw and textiles and furs to eat. The buildings provided new hunting grounds for animals such as spiders, and also places for nesting and spending the winter for many animals which had previously used hollow trees and rock crevices. Throughout the ages these man-made facilities increa…

Where does it come from?

…it is still possible to experience being bitten by bat bugs if you share a house with a colony of bats. There is also a suggestion as to where in the World the common bed bug has evolved. This must have happened in a warm area. Bed bugs thrive best at temperatures of between 25 and 28 degrees Celsius and if the temperature gets below 13 degrees Celsius, their development comes to a standstill. It is therefore concluded that our bed bugs have evolv…

Rodents

…the rest of the teeth by a large, toothless space. Rodents primarily gnaw with the lower front teeth in the lower part of the mouth while the upper front teeth to a high degree serve to position the head while gnawing. The shape and size of holes from teeth in food can reveal what kind of animal that has been eating the food. In adult mice, the total width of the front teeth is approximately 1.5 mm and in rats approximately 3 mm. The house mouse…

Insect senses

…ny hairs that sit on their antennae. These hairs are designed like a sieve with tiny holes that allow the fragrance substance molecules to penetrate. Inside hollow hairs are the fragrances associated with sensory cells that convert the chemical signal into electrical impulses. The sense of taste is also tied to hair, which in principle work like the hairs tied to smell. They are particularly located around the insect mouth, but can also be part of…