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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Invading Turkey from Georgia, D.
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.
However, occasionally outbreaks do occur and result in widespread tree mortality. Dendroctonus micans in Turkey: 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. Fourty-four percent of trees damaged by D. Scolytidae in the field and laboratory: The rearing of Rhizophagus grandis and its release against Dendroctonus micans in the United Kingdom.
Dendroctonus micans in Britain – its biology and control. Dynamics of Forest Insect Populations. It is present in most of Northern, Eastern and Central Europe and has reached Belgium and France, and was first detected in the United Kingdom in The distribution in this summary table is based on all the information available. Twenty-eight percent of the trees were infested by D.
Pest categorisation of Dendroctonus micans
The time required for D. Dendroctonus micans in Britain – its biology and control. Adults The adults are mm long, dark-brown and cylindrical. The great spruce bark beetle occurs in the coniferous forests of Europe and Asia.
Effects of ecological factors on the interaction between populations of Dendroctonus micans and Ips typographus Coleoptera: Retrieved from ” https: Don’t need the entire report? Pheromonal Control Since this insect does not produce an aggregating pheromone, pheromonal control is not a viable control method.
Preliminary results of introduction, study of bioecology, development of methods of artificial rearing and naturalization of the effective entomophage, Rhizophagus grandis Gyll. The pest’s wide current geographic range suggests that it is able to establish anywhere in the EU where its hosts are present.
For example, extensive chemical control operations were undertaken in Turkey between and This beetle is believed to be responsible for maintaining a low and stable D. Sometimes no adult emergence occurs and new brood areas are established in the same tree, along the margins of existing galleries.
Description Top of page Eggs Scolytidae eggs are smooth, ovoid, white and translucent.
Dendroctonus micans in the United Kingdom. Biological control of bark beetles Dendroctonus micans. It is complemented by sanitary thinning or clear-felling.
Scolytidae in the People’s Republic of China. In these plots they were determined in 22 galleries on 18 trees. Sibling males normally mate the females incestuous mating. The genus Dendroctonus Erichson Scolytidae has over 20 species worldwide. Mucans takes place under the bark prior to emergence and before the adult beetles are fully chitinized.
great spruce bark beetle, Dendroctonus micans Coleoptera: Curculionidae
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. Each abdominal segment has two to three tergal folds and the pleuron is not longitudinally divided. Male adults emerge slightly before the females. 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.
However, it has now been established that they are distinct species Furniss, ; Kegley et al. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.
The great spruce bark beetle micanw unusual among members of its genus miczns that the beetles mate before they emerge from under the bark, while they are not yet fully chitinised.
Denroctonus frass and dead bodies of siblings are tightly packed into the area behind the feeding front. Notes on Natural Enemies Top of page D. Distribution and spread of the great European spruce bark beetle, Dendroctonus micans, in Britain – to Distribution Maps Top of page You can pan and zoom the map.