DENDROCTONUS MICANS PDF

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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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Pest categorisation of Dendroctonus micans

It was discovered in the UK in 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. The mated females emerge to attack either new trees or unattacked portions of the host tree from which they emerged. Spruce beetle larvae have four larval instars and are mm long when mature Holsten et al. Habitat Top of page D.

Distribution and spread of the great European spruce bark beetle, Dendroctonus micans, in Britain – to Electrophoretic comparison of Dendroctonus punctatus Leconte and D.

Newly hatched larvae feed gregariously, side by side, in a brood gallery that becomes larger as the larvae feed. The great spruce bark beetle is unusual among members of its genus in dendroctinus the beetles mate before they emerge from under the bark, while they are not yet fully chitinised.

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Dynamics of Forest Insect Populations. You are here Home Scientific Outputs at a dendroctons Pest categorisation of Dendroctonus micans Pest categorisation of Dendroctonus micans. EFSA Journal ;15 7: The relationship between both species was evaluated comparing the densities of D.

Adults The adults are mm long, dark-brown and cylindrical.

The cambium and inner bark of unprocessed logs, or dunnage, crates or pallets, containing bark strips, should be inspected for the presence of galleries and insect life stages. Verbenone interrupts attraction to host volatiles and reduces attack on Pinus tabuliformis Pinaceae by Dendroctonus valens Coleoptera: First record of Dendroctonus micans Kugelann, on non-native spruces in Slovakia – short communication.

The giant bark-beetle Dendroctonus micans Kugelann in Dendroctoonus Coleoptera: Typically the sex ratio is one male per 10 females but can be as low as one male per 45 females.

In some cases, older trees were preferentially attacked Carle et al. Most of these occur on conifers micxns North and Central America, where they are the most destructive natural biological factors.

Establishment and spread of Rhizophagus grandis Gyll. Taxonomic Tree Top of page Domain: Forestry Commission Bulletin No.

Pest categorisation of Dendroctonus micans | European Food Safety

Therefore, North American conifer forests are at risk from the introduction and establishment of this insect. Read it on the Wiley Online Library: Several species are important forest pests, capable of reaching epidemic levels and killing thousands of trees.

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Impact Top of page Within most of its natural range, D. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

It is complemented by sanitary thinning or clear-felling. 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. Number of both species counted in each prey’s brood system was given in Table 1. Datasheet Dendroctonus micans great spruce bark beetle. Dendroctonus micans in Britain – its biology and control. Interrelations between the European spruce beetle Dendroctonus micans Kugel.

Outbreaks have occurred in spruce forests and, to a lesser extent, in Scotch pine forests. The greater European spruce beetle. In these galleries, in different biological stages, a total of R. Forestry Oxford64 4: Most occur on conifers in North and Central America.

A hundred or more eggs are laid in the brood chamber and the female moves on, either creating another brood chamber near the first or exiting the tree and starting again. Contribution to the study of the dispersal and aggressivity of Dendroctonus micans Kug.