…n 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 hairs give it a light, almost…
Search Results for: Wood boring weevil
Exit-holes in timber
…hose made by ambrosia beetles they do not have a dark lining (see p. 128). Wood boring wevil’s exit-holes in timber Wood-boring weevils The exit-holes have a diameter of 1-2 mm. The larvae of these beetles only attack timber damaged by damp. It is typical that many of the tunnels break through the surface of the timber. The wood dust is finer han that produced by the common furniure beetle (see p. 128). Ash bark beetle exit-holes in timber Ash ba…
The Brown wood buck
…t way to prevent an attack from the brown wood buck is by making sure that wood and woodwork are not affected by moisture damage. Therefore, it is advantageous to ensure good ventilation in areas where the wood may be vulnerable to moisture and thus also to attack by the brown wood buck. A good way to get rid of the beetles and larvae is by drying out the tree in question. If the wood dries out, they cannot survive. It can also be considered to tr…
Woodboring beetle
…s trunks or branches. But they can also be found in fence posts. The adult woodboring beetle overwinter inside the wood. Damage The woodboring beetles attack wood that has been softened by fungus or rot. Places to find the beetle are most other completely sealed tree like beams and rafters. The larvae do not thrive in wet wood. Therefore, the beetles only attack once the rot has stopped. If wood is attacked by Hadrobregmus pertinax, it can in many…
Powderpost beetles
…and other types of tropical wood. The beetles only attack hard, untreated woods, and they rarely attack wood that is over 10 years old, as they prefer fresh wood. The females lay up to 50 eggs in the trees pores. When the larva is fully developed, it gnaws below the surface of the tree, and where it pupates. Inside the pupa, the larva transforms into an adult powderpost beetle. The beetle leaves the tree through a small fly hole that is round and…
Rice weevil
…ce wise, the rice weevil is like the grain snout beetle. However, the rice weevil is smaller. A rice weevil is in average 2.5 to 3.5 mm long so there is not talk of a very large beetle. It may also look like a corn snout beetle, as the two species, at first glance appears almost identical. A rice weevil has four red spots on the coverts. The hind and front body are more even in size than with other beetle species, which tend to have a larger hind…
Woodwasps
…se liquid wood preservatives as these agents have little effect on this species. You can however use heat treatment for control. The wood must be heated up to 75 degrees for minimum eight hours or dried, so the humidity drops below 14%. Treated wood will never be attacked by wood wasp larvae. Wood wasps does have a negative impact on forestry, which is why there are import restrictions of conifers in Australia, to avid infested wood. The export of…
Grain weevil
…nown pests when it comes to grain stocks, although one can also find grain weevils in the home. Grain weevil can enter your home via grain such as oats, barley, and wheat. However, one can also find them in dog biscuits, bird seeds, pasta, and other grain items. Grain weevil do not live outdoors in Denmark, so they will prefer to stay close to the food they know they can live on. In the summer, however, they can hike far from their safe areas, as…
(7) The rice weevil and the granary weevil
…ach the temperate zones. At our latitude, both of these granivorous insects are synanthrope. The rice weevil requires more heat than the granary weevil to develop and it is not as likely to survive cold winters. In Northern Europe almost all grain stores are infested with granary weevils. Rice weevils are only seen after particularly hot summers. Based on the British statistics, we can expect that both species separately are imported by about 1% o…
Hercules ant
…of the woodwork. In the same embrace, you should also always treat nearby woodwork with a wood preservative. If a replacement of the wood is not necessary, holes can be drilled into the ants’ nest, which is treated with a liquid wood preservative. In the case of minor infestations, one can try to treat infested cavities with an ant powder, just as the ants’ entrances and exits to and from the house should be treated with barrier belts of ant powd…
The granary weevil
…nerations. For each new generation there will be at least 15 times as many weevils as there were before. The weevils look quite peaceful, but for every beetle, you see, 20-40 larvae are devouring their own cores. A granary weevil infestation begins locally in a so-called “warm pocket”. It is often an external event, which starts this pocket. Water could have entered through a leak. Cereals could have been unable to get rid of the excess water due…
Woodworm
…lives in different types of wood. The woodworm is also known as the common wood boring beetle (Anobium Punctatum). Appearance Typically, the woodworm is characterized by its brown shell with dotted stripes on the cover wings. Their size is typically 3-5 mm. Traces of the woodworm are often found in older houses as well as outdoors, where it lives in wooden fences, dead trees, and other types of soft wood. The woodworm will typically be seen during…
Wharf borer Beatle
…al expenses. Prevention and pest control If the wharf borer beetle attacks wood and timber, it is a clear sign that the wood is damp. In the case of building timber in a house, it is possible to control the wharf borer beetles with a wood preservative that has a proven effect against rot and fungus, but also unwanted insects. Sometimes the woodwork may have taken so much damage from the visit of the wharf borer beetles that it may be necessary to…
Deathwatch beetle
…a treatment of the wood in question. If the attack is significant, it may be necessary to replace the damaged wood. It can be an advantage to replace 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 th…
Index
…h True weevils Tyroglyphus farinae Tyrolichus casei Vespoides Vespulae, Reesa Vinegar flies Violacea, Necrobia Warehouse moth Warehouse moth, tropical Wasps Weevil, coffee bean Weevil, common bean Weevil, corn Weevil, granary Weevil, rice Weevil, true White-marked spider beetle Yellow meal worm beetle Yellow-necked mouse Zeamais, Sitophilus Zacheri, Lardoglyphus…
The rice weevil
…ce weevil is on average slightly smaller and moves faster than the granary weevil. The rice weevil, unlike the granary weevil, flies, and in its natural habitats, in warm countries, it infests grain while it matures in the fields. In Northern Europe, however, it is most common in imported cereals, mainly rice. In terms of biology and harmfulness rice- and granary weevils are very similar, but the rice weevils’ multiplication rate is twice as high…
Pine weevil
…ossibly attracted by the scents given off during the first few years. Pine weevil (left) can be confused with the Black vine weevil. Both have stains off yellow hair on the wings. The snout of the pine weevil is much longer. This species may easily be confused with the black vine-weevil (p. 203). Both are about the same size and have patches of yellow hairs on the elytra, but the snout is considerably larger in H. abietis. The Pine weevil is occas…
Violet tanbark beetle
…from this pest until the entire bark layer of the conifer is used. Damage Wood boring beetles is a pest that many fears. The violet tanbark beetle should however not be feared, as it is the house longhorn beetle that is a serious pest. The violet tanbark beetle is normally completely harmless, but they do attack the tree barks, however those attacks do not spread to debarked wood. The damage from the violet tanbark beetle, has no effect on the lo…
The common bean weevil
…evil is a member of the Bruchidae family, it is also subject to the import restrictions that apply to this entire family, see above. Common bean weevils are exterminated in the same manner as granary weevils….
Wood wasps
(Latin: Family Siricidae) Wood wasp Great wood wasp Wood wasps only lay eggs in trees that still have their bark, so they are unlikely to enter a house, except in timber already infested. It would, in fact, be possible to buy furniture containing these larvae. There is no risk of these insects spreading in the house, and it is very unlikely that they will be present in such numbers as to weaken the furniture. However, they may well cause damage w…
The coffee bean weevil
…ean roasting, and the damage done by these weevils should probably rather be considered from an economic perspective (weight loss during storage) than from hygienic-culinary beliefs. The coffee bean weevil is actually not a bean weevil, but belongs to a family that stands near the true weevils. Therefore, it is not subject to the restrictions relating to bean beetles….
The corn weevil
…consider the two species to be one….
Fan-bearing wood-borer
…Fan-bearing wood-borer ( Latin: Ptilinus pectinicornis ) This species, which is not as common as the other wood-boring beetles, mainly infests deciduous trees, e.g. beech, birch, oak. It is easily recognizable by the large, comb-like antennae. Unlike the other wood-borers here the adult beetle also gnaws timber. The wood dust is very fine and similar to that produced by the powder post beetles….
Rice weevil
…(Latin: Sitophilus oryzae) This beetle is a little smaller than the grain weevil, and can be recognized by the four reddish spots on the elytra, which cover a pair of functional wings. Rice gnawed by rice weevil This is one of the most serious pests of cereal crops in the tropics and subtropics. It is often brought to northern Europe and is not uncommonly found in kitchen cupboards, usually in a packet of rice (see page 93). As in the grain weevi…
Common woodboring beetles
…lso known as wood worm or the Latin name Anobium Punctatum. Appearance The woodboring beetle is recognizable in its appearance. You may have seen it in your house or garden since 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 woodwo…
House longhorn beetle
…by to fight. However, it is recommended to use heat that can penetrate the wood or use a liquid wood preservative to control house longhorn beetle. A surface treatment can also be a solution, but it requires removing the most infested layers and brushing the surfaces clean. Be sure to treat cracks and crevices thoroughly. The treatment can be supplemented with post-impregnation, such as borehole irrigation or pressure injection, if the timber is p…
Animals in timber
…hether deciduous or coniferous, and its age and condition, may also provide clues. Natural enemies of timber pests It might be thought that animals living the greater part of their lives in timber would be well protected against enemies but this is not always the case. Wood-boring beetle larvae fall prey to many species of parasite and predator, and when an attack by such beetles is thought to have died out on its own, this is very often the work…
Yellow shadow ant
…yed. The results of their efforts are bad enough to be recognized as being wood. For the assembled wood is transformed – together with other parts such as sand grains, insulation material and plant fibers – into a cardboard nest that most of all evokes memories of a sponge. Prevention and pest control Unfortunately, it is not possible to prevent any attacks from the yellow shadow ant in the house. In fact, it can often be difficult to track down a…
Nutmeg or coffee weevil
(Latin: Araeocerus fasciculatus) Coffee weevil aka. nutmeg weevil This beetle lacks the well-developed snout of the curculionid weevils. It is widespread in tropical and subtropical regions and is often brought to Europe in goods. It is now found quite commonly in Britain, mainly as a pest in cocoa beans, nutmegs and coffee beans. It has on occasions caused serious trouble to coffee exporters in south-east Asia. It requires warmth and a high humi…
Index
…septempunctata 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 coeruleus Cossus cossus Crab louse Cranefly larvae Crataerina pall…
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