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DENDROCTONUS MICANS PDF

Dendroctonus micans. Survey Reference. 1. Dendroctonus micans (Kugelann). Coleoptera: Curculionidae: Scolytinae. Great spruce bark beetle. Host(s). Pest management with Dendroctonus micans. Our approach to management is to breed and release a host-specific predatory beetle, Rhizophagus grandis, that. An environmentally sound method of pest management to control an alien pest, the great spruce bark beetle, Dendroctonus micans.

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The number of D.

Articles with ‘species’ microformats Commons category link is on Wikidata. The occurrence of the great European spruce bark beetle, Dendroctonus micans Kug.

Dendroctonus micans Scientific dednroctonus Kingdom: It was observed that D. This could favor early kin mating thus allowing denrroctonus females to colonize a prey system as rapidly as possible Merlin et al. Once suitable host material is located, the female bores through the bark to reach the cambium layer where she attempts to establish a brood chamber and subsequently to oviposit, clearing resin, the tree’s first line of defence, which accumulates in the chamber.

Growth Stages Top of page Vegetative growing stage. It also breeds in other Eurasian spruce species such as Picea asperata dragon sprucePicea crassifolia Qinghai sprucePicea ajanensis [Picea jezoensis] ezo sprucePicea obovata Siberian spruce and Picea omorika Serbian spruceas well as in several North American spruce species that have been dfndroctonus into its geographic range.

It has been introduced into Turkey and Georgia, in both of which it is invasive. Twenty-eight percent of the trees were infested by D. The larvae produce an aggregation pheromone; a mixture of trans- and cis-verbenol, verbenone and myrtenol, which sustains larval aggregation. EPPO, ; Vakula et al.

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However, it has now been established that they are distinct species Furniss, ; Kegley et al. These can be seen on the bark surface of infested trees. Adults The adults are mm long, dark-brown and cylindrical. There are five larval instars. Micabs adults can disperse on air currents.

Pest categorisation of Dendroctonus micans

The time required for D. Please consider upgrading your browser to the latest version or installing a new browser. Within its natural range, this insect typically causes low levels of tree mortality and is not considered to be a major pest. The great spruce bark beetle is unusual among members of its genus in that the beetles mate before they emerge from under the bark, while they are not yet fully chitinised. The great spruce bark beetle mainly infests spruce trees, genus Piceabut it will also attack Scots pine and several other species of Pinussilver firNordmann firSiberian firDouglas firand European larch.

great spruce bark beetle, Dendroctonus micans Coleoptera: Curculionidae

denvroctonus Generate a print friendly version containing only the sections you need. This can cause extensive injury to the tree. Most of these occur on conifers in North and Central America, nicans they are the most destructive natural biological factors.

Atlas of insects harmful to forest trees. Beetle attacks often occur around areas of damage on a tree, which may have been caused by lightning or logging. The genus Dendroctonus contains some of the most destructive forest insects in North and Central America, including the southern pine beetle Dendroctonus frontalismountain pine beetle Dendroctonus ponderosaeDouglas-fir beetle Dendroctonus pseudotsugae and the spruce beetle Dendroctonus rufipennis.

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The great spruce bark beetle occurs in the coniferous forests of Europe and Asia. From Wikipedia, the free encyclopedia. The legs and antennae are yellow-brown. They are white, ‘C’-shaped and legless. At present, it is found throughout Eurasia and has adapted to a wide range of forest conditions. Adult flight and, more commonly, walking, play an important part in adult dispersal. Retrieved 10 June About 45 days are spent from the prepupal stage to the emergence of young adults.

Dendrlctonus are often associated with decreased resin pressure and commonly occur in forked or multi-stemmed trees, just below the branch kicans.

In the studied plots, a total of entry and exit holes were counted on dendroctonu. Others fly to nearby trees, and small groups of trees may be affected.

Retrieved from ” https: Most Eurasian conifer forests now have populations of D. However, ground surveys, especially near areas of old infestations, can be conducted to detect infested trees that should be removed from stands.

Detection surveys for D.