Search Results for: Bark borer beetle - Ernobius mollis

…r traces that make the bark beetle an annoying pest in the forest. The many-bark beetle can often ruin not only the value of the wood, but also its uses. Therefore, the infested wood cannot be used in places where water infiltration is a risk factor. The bark beetles are preferably a nuisance outdoors and fortunately cannot do great damage indoors. They can neither damage the woodwork in the house nor in any other way constitute a damage in our ho…

…s Rattus norvegicus Rattus rattus Rat, black Rat, brown Red-breasted copra beetle Red-legged ham beetle Reesa vespulae Rhyzopertha dominica Rice weevil Rock dove, European Ruficollis, Necrobia Rufipes, Necrobia Rust-red flour beetle Rust-red grain beetle Saccharina, Lepisma Sarcophaga, carnaria Saw-toothed grain beetle Serricorne, Lasioderma Silverfish Siro, Acarus Sitophilus granarius Sitophilus oryzae Sitophilus zeamais Skin beetles Skipper, che…

…(see p. 125). Fan bearing wood borer exit-holes in timber Fan-bearing wood-borer The exit-holes have a diameter of 0-1.5 mm. The larvae are found in the sapwood on deciduous trees. The wood dust is very fine and rat her like talc (see p. 125). Powder post beetle exit-holes in timber Powder post beetles The exit-holes have a diameter of 0-1.5 mm. The larvae most frequently occur in the sapwood of oak, but may also be found in various exotie decidu…

…orer beetle is not a rarity in this country, and it likes to settle in dry bark-clad conifers. The soft wood boring beetle – also known by its Latin name Ernobius mollis – differs slightly from other types of borer beetles. This is due to its skin skeleton, which is not as hard as in other of its fellow species. Appearance The fully grown soft wood boring beetle can grow between 3 and 6 millimeters long. It is covered with fine, short hair. These…

…that consists, among other things, of the larvae’s excrement. Damage If a borer beetle has attacked woodwork, it is a clear indicator that the wood is affected by moisture or rot. In such cases, the borer beetle attack is actually a secondary problem. However, this does not mean that their presence cannot present challenges. An attack from the borer snout beetles in interaction with moisture in the woodwork can have an accelerating effect on the…

…encountered along the Danish coasts and around the port cities. The wharf borer beetle is also called by its Latin name Nacerda melanura. There is a reason for the beetle’s name with maritime associations. Because it is not only in Denmark that the beetle prefers to settle in coastal and port areas. The beetle is widespread in similar places throughout the temperate zone, where the wharf borer beetle is spread through shipping. The wharf borer be…

…but in Denmark, at least in comparison with other pests. Destructive flour beetle beetles were first found in Denmark in 1943, but they have since appeared more often. The Destructive flour beetle most likely came to Denmark from the tropics in Africa in connection with trade of goods between the two places. Anyhow it has also occurred in other countries that have traded with this part of the world. In Danish, the Destructive flour beetle is named…

…tles in roof constructions and other timber. Appearance The house longhorn beetle is a beetle that can grow 10-20 millimeters long. The beetle comes in several color variations that change from the light brown to the completely black. One of the most characteristic features of the house longhorn beetle is its woolly, whitish hair on both the back and fore chest, which forms two oblique whitish spots. On the chest it also has two shiny knots. The h…

…e can grow up to 8 millimeters long. Biology and behavior The brown carpet beetle is a beetle in the subfamily (Attageninae), which all share the same common feature. They live on the dry remains of plants and animals and are not unwilling to consume all that is left by other animals. The brown carpet beetle originates from Africa, where the temperature is somewhat different than in Denmark. This affects the beetle. It thrives best at temperatures…

…place the wood with treated wood, such as pressure-impregnated timber. However, it is also possible to treat the wood with a wood preservative that protects the wood from both insect and fungal attacks. In hard-to-reach areas, it can be an advantage to treat with an insect powder that is distributed on the areas where the beetle moves. It will kill the beetles before they have time to lay their eggs….

…mark is the tanbark borer with the Latin name Phymatodes testaceus. The tanbark borer belongs to the genus of wooden borer. The members of this genus have long, curved feeler horns reminiscent of goat horn. Appearance When the tanbark borer is fully grown, it is between 10 and 15 millimeters long. Its breast usually has an orange color, while its coverts are characterized by a blue color. However, there are also variants of the tanbark borer, wher…

…ir 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 and spun cocoons in the infested area. The development from larva to fully adult thief beetle lasts about 3 to 4 months if the larva has good conditions e.g., at room temperature. When the larvae are fully developed, they most often leave this safe area. This means that they sometimes have to clim…

…ow as Anobiidae. The size of the tobacco beetle is around 2-3 mm and a full-grown beetle can measure up to 4 mm. Therefore, we are talking about a very small beetle, that is difficult to spot. The tobacco beetle has a light brown color at the front and shield as well as long light brown hairs that are most evident on its legs. Its head is hidden under the neck shield. Biology and behavior The tobacco beetle thrives in a tropical or subtropical env…

…at right angles to the ordinary larval tunnels (p. 114). Ernobius mollis (bark borer) only attacks coniferous wood with bark edge. This beetle is very common and can be found practically everywhere that timber with the bark still on is used in house construction. The damage done is purely superficial and will not affect the mechanical strength. On the other hand, if such timber is covered with sheets of any kind the emerging beetles will gnaw the…

…d these holes are confusingly like the holes in a tree that has hosted the borer beetle larvae. Bread beetles are not limited to one region, but are found all over the world. And often it is through shipping that the beetles are spread across the globe. Their history of shipping is not exactly good, as the bread beetles liked to be annoying and unwelcome guests on board the ships. This is not least due to their ability to plunder the crew’s meals….

…or Although the wasp beetle tries its hardest to look like a wasp, it is a beetle. The wasp beetle is thus neither aggressive nor dangerous, but it tends to restless behavior, which can seem annoying to the people who do not like beetles and similar small animals. Before they are fully grown, wasp beetles also undergo a larval stage. While they are larvae, they prefer to stay in dead, dry deciduous tree in which they have hatched. It is only as ad…

…n also easily see the difference between the three kinds. Overall, the ham beetle is 4-6 millimeters long when fully developed. Like other insects, the ham beetle has six legs. Ham beetles have long hind bodies, while they are shorter in front. You can see the difference between the three different species in Denmark in their color. The first is a red-legged ham beetle, also called Necrobia rufipes. The red-legged ham beetle naturally has red legs…

…od boards, if lead or cardboard roofs has been laid directly on top of the bark-clad wood. The holes from the pest can result in water damage as well as an increased risk of fungus or rot. Prevention and pest control If you want to avoid an attack from violet tanbark beetle in conifers, you should use debarked planks. It is rarely necessary to control this pest, as the attack will die out by itself, when the layer between the bark and wood is eate…

…ecognize, size wise they are up to 1 cm long. One can take the ordinary fur- or carpet beetle larvae as a brown carpet beetle larva, as they are related. The easiest way to distinguish in between them, is by the location where they are found. If the larva is found indoors, it is most likely the brown carpet beetle larva. A common carpet beetle larva is typically found outdoors. Biology and behavior During the summer, one can find the fur beetle ne…

…nt merchant grain beetles in private homes. To prevent both merchant grain beetle and other beetles from trying to eat one’s food, one should make sure that all the foods that the beetles will go for, are properly packaged in air-tight concealers. In addition, you can minimize the risk by keeping the merchant grain beetles favorite foods (nuts, almonds, dried fruit, seeds, and the like) cool. If you live in an apartment and experience that the mer…

…ollis Euscorpius italicus Falco tinnunculus False scorpion Fan-bearing wood-borer Fannia canicularis Firebrat Flat grain beetle Fleas faeces Flies, faeces Flour beetle Flour mite scent Flour moth Fly bug Forest flies Forficula auricularia Formicoidea Fungus Fungus beetles Furniture beetles faeces Gamasid mites Garden ant Gas trodes ferrugineus Geophilus carpophagus German cockroach German wasp Gibbium psylloides Glycyphagus domesticus Gnats Goat m…

…serrated strips. The wings are fully developed, yet one never sees the saw-toothed grain beetle fly. The larvae are also small, they are only three to four mm long. The head of the larvae is dark, while the rest of the body is yellowish white. The beetle is often mistaken as the merchant grain beetle, as their appearance is similar. Biology and behavior In general, the saw-toothed lifetime is 6-10 month. They can however be up to three years old,…

…peseed fields – especially in spring rapeseed. Appearance The rape blossom beetle is a small gloss beetle of just two millimeters. Its color is dark with a metallic shine that is usually greenish. Biology and behavior When the temperatures are warm, you can experience the rape blossom beetle flying around in even very large numbers. Like many other insects, the beetle is attracted to yellow colors. If you are wearing yellow clothes, it is therefor…

…t other beetles, the flour beetle larva is larger than a fully grown flour beetle. A flour beetle is just 2.5-4 mm long. It has a reddish-brown color and a very long hind body. Like most other beetles, it has six legs and, of course, antennas on its head. If you are not sure of the species, it can be recognized by its lively behavior. Since the flour beetle is an insect, it has a larval stage. The flour beetle larvae are somewhat larger than an ad…

…nce it is a very commend type of pest in Denmark. A fully grown woodboring beetle is 3-5 mm long and the color is brown. The cover wings are characterized by visible dot stripes that makes it recognizable. Biology and behavior The woodboring beetle is a common guest in woodwork, dead trees, wooden posts, timber, and the like. The beetle is only seen during the warm summer months in June to august. In the end of June to the beginning of July they a…