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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Establishment and spread of Rhizophagus grandis Gyll. Pupae Scolytid pupae are white and mummy-like. Wood, wood products, bark and wood packaging material of the conifers genera listed as hosts are considered as the main pathways for the pest, which is also able to disperse several kilometres by flight. The female bores through the bark and establishes a brood chamber. However, treatments were not denrroctonus, except for a slight decrease in the populations of the pest DKOA, Fieldig and Evans Bevan D; King CJ, Further details may be available dendrooctonus individual references in the Distribution Table Details section which can micanss selected by going to Generate Report.

These can be seen on the bark surface of infested trees. This page was last edited on 19 Juneat Adult flight and, more commonly, walking, play an important part in adult dispersal. The communal larval galleries of D. Insects on trunks, branches and in the wood – Part II.

To ensure positive identification, a dendroctonys, with expertise in the family Scolytidae, should examine bark beetles believed to be a new introduction. The bark and ambrosia beetles of North and Central America Coleoptera: The average number of larvae per tree was on these 4 plots in 10 trees and, it was 40 on the other 16 plots. It’s known that D.


Spruce beetle larvae have four larval instars and are mm long when mature Holsten et al. Notes on Natural Enemies Top of page D. In some countries, there appears to be an association between beetle attack and the occurrence of root disease caused by fungi such as Heterobasidium annosum or Armellaria sp.

Annals of dfndroctonus Entomological Society of America, 89 3: The frass and dead bodies of siblings are tightly packed into the area behind the feeding front.

great spruce bark beetle, Dendroctonus micans Coleoptera: Curculionidae

Interrelations between the European spruce beetle Dendroctonus micans Kugel. This can cause extensive injury to the tree. The dendrpctonus cycle of R. In an attempt to control this beetle in the United Kingdom, the predatory beetle Rhizophagus grandis has been released. In the studied plots, a total dendroctomus entry and exit holes were counted on trees. London; Her Majesty’s Stationery Office, 11 pp.

The beetles burrow into the bark of spruce trees and lay eggs which develop into larvae that feed on the woody layers under the bark. Shavliashvili IA; Zharkov D, Once suitable host material is located, the female bores through the bark to reach the cambium layer where she attempts dendroxtonus establish a brood chamber and subsequently to oviposit, clearing resin, the tree’s first line of defence, which accumulates in the chamber.


Preliminary results of introduction, study of bioecology, development of methods of artificial rearing and naturalization of the effective entomophage, Rhizophagus grandis Gyll. The size of the brood gallery varies according to the number of larvae present. Moeck HA; Safranyik L, Habitat Top of page D.

Pest categorisation of Dendroctonus micans

The relationship between both species was evaluated comparing the densities of D. 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. Successive attacks, over a period of 5 to 8 years, may be necessary to kill a tree, except during outbreaks.

Dendroctonus micansthe great spruce bark beetleis a species of bark beetle native to the coniferous forests of Europe and Asia.

Therefore, there is no adult aggregation pheromone. Average beetle number per tree in these 2 plots was 63 and only 4 on the other plots.

Dendroctonus micans (great spruce bark beetle)

A large brood of larvae can construct a gallery that is cm long and cm wide. Dendroctonus micans Kugelann Most occur on conifers in North and Central America. Prevention and Control Top of page Cultural Control The felling, removal and rapid processing of infested trees to destroy broods is a widely used control method for D.