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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Within its natural range, this insect typically causes low levels of tree mortality and is not considered to be a major pest.
Journal of Applied Entomology, 4: However, all of the latter species confine their attacks to Pinus spp. When feeding is completed, they move back into the islands of tightly packed frass and construct single pupal chambers.
Host colonization strategies in Dendroctonus: 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 Others fly to nearby trees, and small groups of trees denddoctonus be affected. Habitat Top of page D. Mating takes place under bark, prior to emergence and before the adult beetles are fully chitinized, the females normally being fertilized by sibling males.
Typically the sex ratio is one male per 10 females but can be as low as sendroctonus male dendrooctonus 45 females. Dendroctonus micans in Britain – its biology and control. This can cause extensive injury to the tree. Navadna smreka – Picea abies L. Growth Stages Top of page Vegetative growing stage.
Some species have paired abdominal urogomphi. Should this new location contain forests with a component of spruce, D. Austin State University, Dendroxtonus control of Dendroctonus micans Scolytidae in Great Britain. Rhizophagus grandis in integrated control systems of forest protection against Dendroctonus micans.
However, apparently healthy trees are also commonly attacked.
The related North American red turpentine beetle, Dendroctonus valens, has recently been dendroctonuus to and established in, China, and has killed more than 6 million pines in recent years Sun et al.
Taxonomic status of Dendroctonus punctatus and D. In 5 plots pupae were counted in 7 trees. They often mine in large groups, among their original larval galleries, chewing the larval frass and sometimes forming ‘nose to tail’ columns within the brood dendroctoonus. Plant Protection Science, 52 4: The number of D. Biological control introductions – opportunities for improved crop production.
This page was last edited on 19 Juneat First record of Dendroctonus micans Kugelann, on non-native spruces in Slovakia – short communication. The occurrence of the great European spruce bark beetle, Dendroctonus micans Kug.
Dendroctonus micansthe great spruce bark beetleis a species of bark beetle native to the coniferous forests of Europe and Asia. The beetles attack living trees and usually complete their life cycle without killing their host, except under epidemic conditions at the limits of ddendroctonus distribution range, where hundreds of thousands of trees can be killed.
Any resin that accumulates is mixed with frass droppings and pushed out of the tunnel, creating a purplish-brown mass known as a resin tube. Most occur on conifers in North and Central America.
These characteristics of the pest facilitate denvroctonus control. However, it has now been established that they are distinct species Furniss, ; Kegley et al. Several females may mine the same area and their excavations may coalesce.
The relationship between both species was evaluated comparing the densities of D. Most Eurasian conifer forests now have populations of Dfndroctonus. Forestry Commission Bulletin No.