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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New York ; Plenum Publishing Corporation, pp.
This can take place over a period of several years. Each abdominal segment has two to three tergal folds and the pleuron is not longitudinally divided. Shavliashvili IA; Zharkov D, Research on rearing techniques for Rhizophagus grandis Gyll. Detection surveys for D.
Distribution Top of page D. The larvae are legless and “C”-shaped, white with darker heads. This specifically preys on the great spruce bark beetle and has a great ability to detect the adults and larvae infesting a tree.
The genus Dendroctonus contains some of the most destructive forest insects in North and Mjcans America, including the southern pine beetle Dendroctonus frontalismountain pine beetle Dendroctonus ponderosaeDouglas-fir beetle Dendroctonus pseudotsugae and the spruce dendoctonus Dendroctonus rufipennis.
The giant bark-beetle Dendroctonus micans Kugelann in Turkey Coleoptera: It is conceivable that larvae, pupae and overwintering adults could survive an ocean voyage and be introduced into a new location.
Dendroctonus micans (great spruce bark beetle)
Adult flight and, more commonly, walking, play an important part in adult dispersal. The time required for D. Atlas of insects harmful to forest trees. More information about modern web browsers can be found at http: Dendroctonus micans in Britain – its biology and control.
Outbreaks have occurred in spruce forests and, to a lesser extent, in Scotch pine forests. Should this new location contain forests with a component of spruce, D. Contribution to the study of the dispersal and aggressivity of Dendroctonus micans Kug. At the time of investigation, 75 female beetles were boring through the bark, 21 females were opening egg galleries, 19 females were ovipositing and 42 females were with first and second instar larvae in galleries.
Risk of Introduction Top of page The adults can fly at least 2 to 3 km in search of new hosts but prefer to attack either the same trees in which they developed or immediately adjacent trees. Beetle attacks often occur around areas of damage on a tree, which may have been caused by lightning or logging. The limbs and antennae are yellowish-brown, the head is visible when viewed from above, and the elytral declivity, the downward sloping rear end of the elytrais rounded and smooth.
Sixty-five percent of D.
During the survey, D. Banff, Canada, September The distribution in this summary table is based on all the information available. Dendroctonus micans in Britain – its biology and control.
great spruce bark beetle, Dendroctonus micans Coleoptera: Curculionidae
Mass-rearings and releases of Rhizophagus grandis in Lozere. The average number of larvae per tree was on these 4 plots in 10 trees and, it was 40 dendrocotnus the other 16 plots. Scolytidae in the field and laboratory: Environmental Impact Top of page Sustained attack on individual trees can result in tree mortality.
Alkan S; Aksu Y, Biological control of Dendroctonus micans Coleoptera: Integrated Pest Management Dendroctoonus pest management IPM of this insect consists of the timely detection of infestations, the rapid removal and processing of infested trees, thinning of overstocked stands to reduce their susceptibility to attack and the release of the predator, Rhizophagus grandis, into areas where this insect has recently spread.
Pest categorisation of Dendroctonus micans
Pupae Scolytid pupae are white and mummy-like. The legs and antennae are yellow-brown. The great spruce bark beetle is unusual among members of its genus in that the beetles mate before they emerge from under the bark, while they are not yet fully chitinised. Denfroctonus Her Majesty’s Stationery Office, 11 pp.
The female bores through the bark and establishes a brood chamber. Great Basin Naturalist Memoirs, At present, it is found throughout Eurasia and has adapted to a wide range of forest conditions. Views Read Edit View history. Emergence can take place over a protracted period with many beetles using dendroctlnus mergence hole Fieldig and Evans The duration of its life cycle vary greatly.
There are five larval instars and when the larvae are fully developed, they create individual pupal chambers in the frass and pupate. Dendroctonus micans in Turkey: European and Mediterranean Plant Protection Organization.
When the eggs hatch, the larvae feed gregariously, chewing their way in a broad front and packing in their frass behind them. Mating takes place under the bark prior to emergence and before the adult beetles are fully chitinized. These are covered with frass and wood dust. Gozdarski Vestnik, 64 2: It has steadily spread westward over the past years, undoubtedly aided by the increased trade in unprocessed logs. Silvicultural and physiological characteristics of trees damaged by Dendroctonus.
Semiochemicals and the management of Rhizophagus grandis Gyll. Other life stages are confined to the cambium layer and inner bark, and do not naturally disperse.