…be mistaken for the housefly, except that the small housefly is obviously smaller. In fact, a small housefly is only 4 to 7 millimeters long. They have three dark stripes on the chest. If the strips are more evident, it is most likely a female. The hind body of the female is dark gray with a golden shade and is completely egg-shaped. On the male, the hind body is brownish black with yellowish spots and the shape is elongated. As a caterpillar, th…
Search Results for: Small tortoiseshell
Unease about small animals
…. entomologists and people interested in nature) who take their time to get to know the animals usually have a relaxed attitude towards them. They take their precautions against animals, which can cause discomfort and are excited about the fascinating richness of nature, which the small animals also represent. You might get a better quality of life by getting to know the small animals. On the other hand, it is not feasible to know about all the an…
False scorpion
…dity level. Prevention and control Since the false scorpions and book scorpions are not dangerous to humans or our things, there is no reason for controlling them. In the wild, they cannot harm humans, but are an essential part of a healthy ecosystem, as they eat mites and other small animals. Indoors, book scorpions can help keep small animals away from important papers and books. If you notice many book scorpions indoors, it is typically a sign…
Bread beetle
…ad beetle can lay about 100 eggs. It takes between 1 to 2 weeks before the small larvae hatch from the eggs. The newly hatched larvae are extremely small and measure only about ½ millimeters. They therefore easily penetrate seals and packaging that are not properly sealed. The larvae thrive best in very starchy and dry products such as pasta, biscuits, and crispbread. But they can also find their way into dried vegetables, spices, nuts or even pha…
Small mites
Most mites are quite small. Some of them can only just be seen with the naked eye – as whitish particles, the size of a full stop in this book. In strong magnifying glass, they are similar in appearance to spiders. The mites do not constitute a natural grouping, however, it constitutes a place where you have placed the arthropods that by reducing the number of hops over millions of years has been to bladder-shaped organisms with legs. Mites have…
Australian spider beetle
…makes them stick to surfaces. The female lays her eggs individually or in small groups. She places her eggs in carefully selected and protected areas where the small, hatched larvae can feed on the surrounding material. Here the larvae have every opportunity to develop. The small larvae spin their own whitish cocoon in which they pupate. The cocoon has an almost tissue-paper-like appearance, and the webs of the larva can be seen as thin threads a…
Bark beetle
…tched, the larvae take over the work themselves. The larvae gnaw their own small passages from the mother passage. The small bark beetle larvae live mostly on the liquid that comes from the tree and which leaks into the passages. This is a real meal for the larvae, as the liquid is quite sugary and starchy. The bark beetles are not picky when it comes to choosing wood. And they like to attack deciduous trees as well as conifers. In imported woods…
5. Non-chemical control measures
…sts in goods within a week. In practice, however, one can manage with very small doses. A dose of between 10 and 20 Krad will only kill a small part of the population, but the rest will within a week or two become sterile. This can be an advantage because the irradiated and sterile males for a period to some extent protect the goods against new infestations by mating with any newcomer females. The females that mate with sterile males will not get…
Small black or garden ant
…: 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 been subj…
Head lice
…o the scalp. When the lice are fully developed inside the egg, it pushes a small lid off the top of the egg. The newly hatched lice are quite small and measure just between 0.5 and one millimeter. When the lice leave the eggs, they stay out on the hair shaft, where they grow out with the hair and at the same time become more visible. These eggs are whitish. However, dark-colored eggs can also appear on the scalp, and this type of egg usually conta…
Fungal mosquitoes
…alle types resemble each other a lot. The common feature is that they are small and do not sting. The fungal mosquito is 3-5 mm and therefore relatively small. Biology and behavior The fungal mosquito, as the name suggests, is often found in and around fungi. You can find them in the mushrooms you buy as well as those in nature. They are often seen as small worm-like insects that make cavities and passages inside the fungi. They are worm-like, as…
Yellow swarming fly
…yellow swarming fly belongs to the family (Chloropidae), a large family of small flies, most of which are associated with plants in the grass family. The yellow swarming fly larvae develop in the plant roots from, especially grass. Here the larvae feed on the small root lice that are under the grass. Each season can offer many generations of new yellow swarming flies, but the fly only overwinters as an adult fly and not as a larva. During the spri…
Small moths
…( Latin: Microlepidoptera) Although one does not generally associate moths with foods, there are in fact some species which exploit foods and some of them are among the serious pests in stores and factories….
Risks of using poisons
…sk of chronic poisoning. Some substances are not particularly poisonous in small doses but are only broken down or excreted very slowly, so that a small daily dose may accumulate in the organism and eventually reach a level where it becomes injurious. Thirdly, the excessive use of substances which break down slowly has given rise to fears that they may accumulate in the soil and in water and have an injurious effect on animal and plant life. Fortu…
Long-tailed Silverfish
…your home for bearded prey before treatment. Edible poison is laid out in small gel drops under the floor panels at 1-2 meter intervals. In addition, small drops of poison should be placed in cracks and crevices and in dark places where long-tailed silverfish can reside. Good advice against long-tailed silverfish Some good advice to avoid getting long-tailed silverfish into your home is to keep an eye on the things you buy and bring into your hom…
Small moths
Many of the smaller moths are superficially very similar in appearance. Some attack textiles, some are pests of agricultural crops, while others infest foods (p. 63). In everyday life, however, the moths most commonly encountered are those that attack clothing, and these must have been a nuisance to man for a very long time. As soon as our ancestors started to store skins the moths must have arrived immediately and exploited this new and rich sou…
Small black or garden ant
Latin: Lasius niger Black garden ant These are the ants most commonly seen on verandas and in the house. They live in the ground, frequently under rocks or flagstones, and they will often penetrate under the house itself, particularly if it has been built directly on the ground. Ants frequently build nests in the insulation layer and from there they penetrate up into the house itself through the cracks which inevitably appear in the cement. Garde…
House longhorn beetle
…laying tube, which – when she rests – stick out behind her coverts like a small pin. The female places her eggs about 20 millimeters inside the cracks in portions of 20 to 30 eggs. A house longhorn beetle female lays eggs for a few weeks, and during this period she can manage to lay several hundred eggs. The adult house longhorn beetle only lives for 10-15 days. After the larvae have hatched from the eggs, they gnaw into the tree through a small…
Ants
…prefer to forage outdoors. The first signs of ants in the house are often small piles of sand and gravel that pop up at the panels. The ants dumps this sand and gravel, and the piles also contain the remains of dead insects such as ants, and empty pupae. A more dramatic indication that there are ants in the house can be that suddenly in the summer thousands of winged ants occur in a room. In a functioning ant community a large number of winged ma…
Cockroaches
…is larger, grows up to 2.5 cm long and is shining black. the females have small elytra, while the elytra of the males almost cover the entire abdomen. Its way of life is largely as the German cockroach, but it requires higher temperatures to thrive. An important difference is that the female is not carrying the egg capsule around, but places it in the dark sheltered place. The capsule cracks after a few months and the small nymphs come out. This…
Museum beetles
…o it may initially seem a bit puzzling. The adult museum beetles look like small ladybugs, but they do not have their clear, shiny colours. They have beautiful, dull, yellow, brown and grey colours caused by small coloured scales, distributed in a pattern across the elytra. this is the same principle that gives butterflies their colours. It is especially in early spring, you see the adult beetles. They come out and if they have overwintered in a h…
False scorpion
…ed immediately. However, they are never dangerous to man, for they are too small and cannot bite through the skin. Several species are very common outdoors, where they live a sheltered existence under moss, among fallen leaves, and in similar places. Some species are also common on dunghills where their prey includes the eggs and small larvae of flies. Sometimes they also attach themselves to the adult flies, not in an attempt to kill them or to s…
Laboratory methods for detection of pests in food
…nutes. Some pests will – after disturbances – play dead for a few minutes. Small whitish pests, such as mites, are most easily found if you shake the test easily in a kitchen sieve over a piece of black paper in the tray bottom. The pests that are found may be looked upon dry or you can kill and preserve them in alcohol added glycerine (3 parts 70% ethanol to 1 part glycerine). Denatured alcohol is a workaround. The smallest pests do best as micro…
4. Packaging
…, where the scent of the product leaks out. When the eggs hatch, the quite small, active larvae squeeze their way through very small cracks. Invasions of moths, drugstore beetles and saw-toothed grain beetles frequently happen that way. Metal cans and glass with tight fitting lid are probably the only packagings that provide 100 % protection against insects and mites. Hessian, cotton, rayon and other textiles protect poorly and even worse, as the…
Exit-holes in timber
…illow. The larval tunnels lie between the bark and the wood (see p. 139). Small black ant exit-holes in timber Small black ant These ants form labyrinthine tunnel systems in soft, crumbling timber which has been attacked by fungus or possibly by wood-boring beetles. The surface of the timber takes on a typical rounded and polished appearance. When the colony is deserted the tunnels are completely empty ( see p. 145). There are other ants which…
Banana flies
…ly. The banana fly does not just eat these goods. The female also lays her small whitish eggs in these surroundings. The female can lay 25 eggs in one day, just as she can lay 200 eggs in total in her lifetime. The female’s eggs take about a day to hatch. And out of the eggs come the small larvae that search down into their edible surroundings. The larvae then undergo their development from larva to adult banana fly. A process that lasts 4-5 days,…
Butterfly mosquitoes
…to is greyish, and the larvae are whitish. The larva has a dark head and a small breathing tube at the backend. Typically, only this breathing tube protrudes. Although the butterfly mosquito is small and with relatively large wings, it is poor at flying. When it moves, this happens in a bouncing and soft manner- or simply just by wandering around. At rest, the wings are held over the body like a roof. Biology and behavior Butterfly mosquitoes lay…
Stinging mosquitoes
…to bite in the winter, it will typically be by a large house mosquito. The small house mosquito is called in Latin Culex pipiens. They are brownish in their color, and they do not feed of human blood. This does however not mean, that the small house mosquito is not annoying because they are to be found in damp basements in large quantities where they stay during winter times. The large amounts can cause a fear of a mosquito plague but this fear is…
Thrips
…times be compared to fleas. Prevention and pest control Due to the thrips small size, they can hide in small gabs. They can be found behind wallpaper, behind the glass on picture frames as well as other places with tiny gabs, which makes it difficult to keep them outside the home. However, you can prevent them, by keeping both windows and doors closed on hot summer days. If they do enter, they will die after a few days. Thrips will typically occu…
Butterflies
…so it is a good idea to open the windows and let them fly out. Butterfly, Small tortoiseshell in hibernation Cabbage white butterflies Cabbage white butterflies, such as the large white (Pieris brassicae), may overwinter, but in the pupal stage. These butterflies have more than one brood during the summer. The larvae of the last brood leave the plants they have been feeding on when they are ready to pupate. Sometimes roads and paths in the vicini…
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