Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Annals of the entomological society of america, 1074. The majority of the species in this genus is capable of killing the host tree in one generation. A new species of bark beetle, dendroctonus mesoamericanus. Antennal transcriptome analysis of odorant reception genes. It is considered to be a secondary pest and is often associated with more aggressive bark beetle species.
Orthoptera species file online pacific northwest moths singing insects of north america sina. Should this new location contain forests with a component of spruce, d. Curculionidae, scolytinae, is a destructive invasive pest of conifers which has become the second most important forest pest nationwide in china. Recently, this species was accidentally introduced to china, where it has caused severe damage in pine forests. Gut bacterial communities of dendroctonus valens and d. Leptographium procerum, a mutualistic fungus can assist the host beetle in overcoming the pines chemical defenses, and beauveria bassiana, an entomopathogenic fungus has shown high beetle killing efficiency. Scolytinae, colonizes all pines species within its native range throughout north and central america. Review of the geographical distribution of dendroctonus vitei curculionidae. It is native to north america and was accidentally introduced.
The genus dendroctonus contains some of the most destructive forest insects in north and central america, including the southern pine beetle dendroctonus frontalis, mountain pine beetle dendroctonus ponderosae, douglasfir beetle dendroctonus pseudotsugae and the spruce beetle dendroctonus rufipennis. The red turpentine beetle, dendroctonus valens coleoptera. Red turpentine beetle rtb, dendroctonus valens leconte, is an invasive pest in china, and it leads to. An wikimedia commons mayda media nga nahahanungod han. Consultation on the red turpentine beetle, dendroctonus valens, in shanxi province, pr china, july 17, 2001. Dendroctonus genus of small bark beetles destructive especially to mature conifers genus dendroctonus arthropod genus. Wherever host species are found in idaho and montana. Montana field guide contains a wealth of information about montanas diverse species. In fact, death of the host is often a requirement for successful brood production. Scolytinae, is a serious, exotic pest of pines in china that was. The scanning electron micrograph sem allowed detailed image resolution to depict the elytral file on the posterior tip of the hardened forewing in concert with a file on the 7th or 8th abdominal sternite of both male rudinsky, 1974 and female dendroctonus beetles rudinsky. Acoustic signalling in the destructive bark beetle genus.
General information about dendroctonus valens dencva eppo global database. This aggressive tree killer is a native insect that lives. Both biotic and abiotic factors can influence species composition and structure of the insect gut bacterial communities. Scolytinae based on geometric morphometrics of the seminal rod. The best indicators of red turpentine beetle attack on pines are. Map showing distribution of dendroctonus brevicomis and dendroctonus barberi in relation to average annual minimum temperature.
It attacks all species of pine within its range and occasionally spruce and larch. Dendroctonus terebrans olivier, 1795 black turpentine beetle. Scolytinae, the red turpentine beetle rtb is a bark beetle. An exotic invasive pest of pines, the red turpentine beetle, dendroctonus valens leconte scolytidae rtb, was first detected in shanxi province, norther. The red turpentine beetle, dendroctonus valens leconte coleoptera. Comparison of male and female file shape 103 figure 4. Pdf comparative study of the antennae of dendroctonus. It includes several species notorious for destroying trees in the forests of north america. The related north american red turpentine beetle, dendroctonus valens, has recently been introduced to and established in, china, and has killed more than 6 million pines in recent years sun et al. Verbenone interrupts attraction to host volatiles and.
Scolytinae were collected from may to september of 20 and 2014 at several locations near ottawa, on, canada the central experimental farm, 45. Bark beetles use a springloaded mechanism to produce. Principal component analysis of the gut microbiota of d. Adult dendroctonus valens leconte 1860 curculionidae. Sexual variation of bacterial microbiota of dendroctonus. The role of dendroctonus valens and its vectored fungi in the mortality of ponderosa pine.
Information and translations of dendroctonus in the most comprehensive dictionary definitions resource on the web. The exposure to plant defense chemicals has negative effects on insect feeding activity and modifies insect gut microbial community composition. Dendroctonus valens is known to use host odors and aggregation pheromones, as well as nonhost volatiles, in host location and mass. Dendroctonus valens leconte is one of the most economically important forest pest in china. The red turpentine beetle is a common pest of forest, shade and park trees of pole size or larger. Quantitative variation and biosynthesis of hindgut volatiles associated with the red turpentine beetle, dendroctonus valens leconte, at different attack phases volume 100 issue 3 z. Pdf the red turpentine beetle, dendroctonus valens leconte.
Since its introduction from north america, dendroctonus valens leconte has become a destructive forest pest in china. The red turpentine beetle rtb, dendroctonus valens leconte coleoptera. Attacks are usually confined to lower 3 feet of the bole. The red turpentine beetle, dendroctonus valens leconte. Although most of the species are capable of attacking and killing standing. However, it is not a legal authority for statutory or regulatory purposes.
Dendroctonus valens is a very destructive forest pest in china, and the massattacking behavior is regulated by several semiochemicals, including verbenone, a multifunctional pheromone. In parts of china where temperatures reach below 18 degrees c dendroctonus valens may survive overwinter in pine roots but not tree boles. Dendroctonus definition of dendroctonus by merriamwebster. Trapping with semiochemicals and pheromones was deployed in d. Save map as png save map as svg save list as excel file save list as csv file. This finding suggests either that there is regional variation in d.
Dendroctonus ponderosae hopkins, 1902 is a destructive pest of pine trees keeling et al. Dendroctonus valens, an invasive bark beetle, has caused severe damage to chinese forests. Dendroctonus bark beetles are a worldwide significant pest of conifers. Host pine defensive chemicals can protect the pines from attack by the holobiont. Gut microbiota are widely involved in insect biology, and many factors can influence the microbiota in guts and frass. Frontiers effect of oxygen on verbenone conversion from. Scolytidae, originating from north america was introduced into china counties of yangcheng and xinshui shanxi province in the early 1980s. Adults and larvae kill the trees by directly feeding on and girdling them. The response of the introduced red turpentine beetle, dendroctonus valens leconte, to host semiochemicals in shanxi province, china, was distinctly different from that reported in previous studies conducted in the western part of the native range of d. Can infest any pine species and is infrequently found in other conifers. Dendroctonus definition is a genus of small bark beetles that are especially destructive to mature coniferous trees and that have a large prothorax, short clubbed elbowed antennae, serrated tibiae, and spiny elytra. Dendroctonus valens leconte was introduced from north america to china and has killed millions of healthy pines there. Media in category dendroctonus valens the following 5 files are in this category, out of 5 total.
The beetle harbors a variety of bacteria in its guts and frass and. Bacterial community and nitrogen fixation in the red. It belongs to a group of beetles that spend most of their. Dendroctonus valens and hylastes porculus dictionary. Comparative study of the antennae of dendroctonus rhizophagus and dendroctonus valens curculionidae. Quantitative variation and biosynthesis of hindgut. Based on the detected otus across the 25 samples, an nonmetric multidimensional scaling nmds ordination analysis result showed that d.
Insects harbor a community of gut bacteria, ranging from pathogenic to obligate mutualistic organisms. Pdf gut bacterial communities of dendroctonus valens and. Red turpentine beetle, dendroctonus valens leconte. An wikispecies in mayada impormasyon nga may pagkahisumpay ha. Bacterial and fungal symbionts of parasitic dendroctonus. Large pitch tubes at bases of ponderosa pine indicate red turpentine beetle attacks. Bacterial volatile ammonia regulates the consumption sequence of d. There is an urgent need to develop effective behavioral chemicals to monitor and control d.
Scolytidae, is a common pest of pines in its native range in north and central america eaton and lara 1967. The red turpentine beetle, dendroctonus valens leconte eaton and lara 1967, smith 1961, occurs in practically all pine forests of the united states and canada except in the southeastern and gulf states. To overcome host pine defenses, beetles massattack the pine to a threshold. Dendroctonus valens dencvaoverview eppo global database. Diagnostic protocol for the identification and detection of. In 1999, it was found in hebei province and by 2003 this bark beetle had spread to 85 counties in 3 provinces of northern china covering an area of more than 700 000 ha causing damage to pine trees. Dendroctonus valens is a destructive forest pest in china. The introduced red turpentine beetle, dendroctonus valens leconte, is one of the most economically important forest pests in the peoples republic of china, having killed more than 6 million pines in recent years. Bark beetles in the genus dendroctonus home us forest. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Sexual dimorphism of the seventh abdominal tergite of dendroctonus 6 spp. In these countries, this species has been collected at elevations above from 311 to 2600mon six pine species, and it commonly occurs in syntopy with d. Red turpentine beetle dendroctonus valens leconte pdf file.
Dendroctonus valens european and mediterranean plant. Comparative analysis of the immune system of an invasive. Although gut aerobic bacteria have been investigated and some are implicated in beetle pheromone production, little is known about the abundance and significance of facultative anaerobic bacteria in beetle gut, especially with regards to effects of. Abstractthe introduced red turpentine beetle, dendroctonus valens leconte, is one of the most economically important forest pests in the peoples republic.
Gut bacterial communities of dendroctonus valens and. Dendroctonus valens is a very destructive forest pest in china, and harbors a large diversity and abundance of gut microorganisms. Gutassociated bacteria of dendroctonus valens and their. Dendroctonus valens, the red turpentine beetle, is a species of bark beetle native to the forests of north america, mexico, guatemala and honduras. The southern pine beetle spb, dendroctonus frontalis zimmermann, is the most destructive insect pest of pine in the southern united states. Previous studies have highlighted the importance of the. This genus comprises 20 species found in north and central america, and eurasia. Report prepared for usda forest service international programs.
Pdf an exotic invasive pest of pines, the red turpentine beetle, dendroctonus valens leconte scolytidae rtb, was first detected in shanxi. Dendroctonus definition of dendroctonus by the free. Several studies have documented the microbiota associated with these bark beetles, but little is known regarding how the gut bacterial communities change across host range distribution. Dendroctonus synonyms, dendroctonus pronunciation, dendroctonus translation, english dictionary definition of dendroctonus.
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