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 female beetle excavates a tunnel in the bark of a host tree and creates a micand chamber. The expelled resin mixed with frass is purplish-brown and gives rise to resin tubes, which are characteristic of D. Datasheet Dendroctonus micans great spruce bark beetle. It is complemented dendrkctonus sanitary thinning or clear-felling. Dendroctonus micans Kugelann Average beetle number per tree in these 2 plots was 63 and only 4 on the other plots.
Some species have paired abdominal urogomphi. Notes on Natural Enemies Top of page D.
When several females oviposit close to each other, the individual galleries coalesce. Fourty-four percent of trees damaged by D. Dendroctonus micans, distribution and damage caused. This beetle denroctonus believed to be responsible for maintaining a low and stable D.
Pest categorisation of Dendroctonus micans
The sib-mating habits of the species allow each single female to start a new colony on her own. Elsevier Scientific Publishing Company. Biocontrol News and Information, Vol. The relationship between both species was evaluated comparing the densities of D.
Growth and survival of Dendroctonus micans on six species of conifer. However, apparently healthy trees are also commonly attacked. The giant bark-beetle Dendroctonus micans Kugelann in Turkey Coleoptera: The eggs of the great spruce bark beetle are smooth, white and translucent, and laid in batches of a hundred or more.
Distribution Top of page D. Semiochemicals and the management of Rhizophagus grandis Gyll. Mattson WJ, et al.
Newly hatched larvae feed gregariously, side by side, in a brood gallery that becomes larger as the larvae feed.
The number of D.
Dendroctonus micans (great spruce bark beetle)
First record of Dendroctonus micans Kugelann, on non-native spruces in Slovakia – short communication. Typically the sex ratio is one male per 10 females but can be as low as one male per 45 females.
Pupae Scolytid pupae are white and mummy-like. Host colonization strategies in Dendroctonus: Dendroctonus micans in Turkey: Dendroctonuss life stages are confined to the cambium layer and inner bark, and do not naturally disperse. Rhizophagidae 6 years after release in the Foret domaniale du Mezenc France.
Therefore, there is no adult aggregation pheromone. It has been introduced into Turkey and Georgia, in both of which it is invasive.
In some countries, there appears to be an association between beetle attack and the occurrence of root disease caused by fungi dendrkctonus as Heterobasidium annosum or Armellaria sp.