Past attacks influence host selection by the solitary bark beetle Dendroctonus micans

2001 ◽  
Vol 26 (2) ◽  
pp. 133-142 ◽  
Author(s):  
Marius Gilbert ◽  
Gérard Vouland ◽  
Jean-Claude Grégoire
Keyword(s):  
Bark Beetle ◽  
Host Selection ◽  
Dendroctonus Micans

The first study on the bacterial flora of the european spruce bark beetle, Dendroctonus micans (Coleoptera: Scolytidae)

Biologia ◽  
2006 ◽  
Vol 61 (6) ◽  
Author(s):  
Hüseyin Yilmax ◽  
Kazım Sezen ◽  
Hatice Kati ◽  
Zihni Demirbağ
Keyword(s):  
Bark Beetle ◽  
Micrococcus Luteus ◽  
Bacterial Flora ◽  
Biochemical Properties ◽  
Identification System ◽  
Dendroctonus Micans ◽  
Microbial Identification ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
European Spruce Bark Beetle

AbstractThe European spruce bark beetle, Dendroctonus micans Kugelann (Coleoptera, Scolytidae), is one of the most serious pests of oriental spruce (Picea orientalis L.) in Turkey. In this study, we investigated bacterial flora of D. micans collected from different populations of the forests of Eastern Black Sea Region of Turkey from 2002 to 2004. Seven different bacteria were isolated from healthy, diseased and dead specimens based on the color of colony and morphology. According to morphological, physiological and biochemical properties, metobolic enyzme profile by BIOLOG microtiter plate system, and total cellular fatty acid profile by Microbial Identification System (MIS), isolates were identified as Micrococcus luteus, Bacillus thuringiensis subsp. morrisoni, Serratia grimesii, Enterobacter cloaceae, Enterobacter intermedius, Streptococcus sp. and Pseudomonas putida. This is the first study on the bacterial flora of D. micans.

scholarly journals First record of Dendroctonus micans (Kugelann, 1794) on non-native spruces in Slovakia – short communication

2016 ◽  
Vol 52 (No. 4) ◽  
pp. 277-282
Author(s):  
Vakula Jozef ◽  
Zúbrik Milan ◽  
Galko Juraj ◽  
Gubka Andrej ◽  
Kunca Andrej ◽  
...  
Keyword(s):  
Central Europe ◽  
Bark Beetle ◽  
Urban Areas ◽  
Short Communication ◽  
First Record ◽  
Dendroctonus Micans ◽  
Coniferous Trees ◽  
Picea Pungens ◽  
Spruce Bark ◽  
Rhizophagus Grandis

In 2015, we recorded the first attack of the great spruce bark beetle, Dendroctonus micans (Kugelann) (Coleoptera: Curculionidae, Scolytinae) on non-native Picea orientalis (L.) and Picea pungens (Engelmann) in Slovakia. To our knowledge, the occurrence of D. micans on P. orientalis in Central Europe has not been described yet. We found that D. micans preferred P. orientalis over P. pungens and other coniferous trees in urban areas. In laboratory conditions, 352 adults of D. micans emerged and only 1 predator, Rhizophagus grandis (Gyllenhal) (Coleoptera: Monotomidae), was recorded. D. micans has a potential to become a serious pest of P. orientalis and P. pungens in urban, and in air-polluted areas.

The great spruce bark beetle (Dendroctonus micans Kug.) (Coleoptera: Scolytidae) in Lithuania: occurrence, phenology, morphology and communities of associated fungi

2016 ◽  
Vol 107 (4) ◽  
pp. 431-438
Author(s):  
A. Menkis ◽  
J. Lynikienė ◽  
A. Marčiulynas ◽  
A. Gedminas ◽  
A. Povilaitienė
Keyword(s):  
Bark Beetle ◽  
High Throughput ◽  
Plant Pathogens ◽  
High Throughput Sequencing ◽  
Developmental Stages ◽  
Seed Orchard ◽  
Negative Effects ◽  
Dendroctonus Micans ◽  
Blue Stain Fungi ◽  
Blue Stain

AbstractWe studied the occurrence, morphology and phenology of Dendroctonus micans in Lithuania and the fungi associated with the beetle at different developmental stages. The occurrence of D. micans was assessed in 19 seed orchards (at least 40 years old) of Picea abies (L. Karst.) situated in different parts of the country. Bark beetle phenology was studied in two sites: a seed orchard of P. abies and a plantation of Picea pungens (Engelm.). D. micans morphology was assessed under the dissection microscope using individuals at different developmental stages that were sampled during phenology observations. Communities of fungi associated with D. micans were studied using both fungal culturing methods and direct high-throughput sequencing from D. micans. Results showed that the incidence D. micans was relatively rare and D. micans was mainly detected in central and eastern Lithuania. The life cycle included the following stages: adult, egg, I–V developmental stage larvae and pupa. However, development of D. micans was quicker and its nests larger under the bark of P. pungens than of P. abies, indicating the effect of the host species. Fungal culturing and direct high-throughput sequencing revealed that D. micans associated fungi communities were species rich and dominated by yeasts from a class Saccharomycetes. In total, 319 fungal taxa were sequenced, among which Peterozyma toletana (37.5% of all fungal sequences), Yamadazyma scolyti (30.0%) and Kuraishia capsulate (17.7%) were the most common. Plant pathogens and blue stain fungi were also detected suggesting their potentially negative effects to both tree health and timber quality.

Menzbieria chalcographi, a new neogregarine pathogen of the great spruce bark beetle, Dendroctonus micans (Kugelann) (Curculionidae, Scolytinae)

2012 ◽  
Vol 57 (3) ◽  
Author(s):  
Mustafa Yaman ◽  
Renate Radek
Keyword(s):  
Electron Microscopy ◽  
Biological Control ◽  
Bark Beetle ◽  
Light And Electron Microscopy ◽  
First Record ◽  
Dendroctonus Micans ◽  
Male And Female ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
Life Cycle Stages

AbstractThis study concerns a new neogregarine parasitic in the great spruce bark beetle Dendroctonus micans (Kugelann) (Curculionidae, Scolytinae). The rate of infection was high, reaching 27.3%. There was no difference in the rate of infection of male and female beetles. The life-cycle stages of the pathogen were described by light and electron microscopy. Each gametocyst of the neogregarine included 8–16 actinocephalid oocysts measuring 11.19 ± 0.42 × 4.99 ± 0.25 μm. The described pathogen has the typical characteristics of members of the genus Menzbieria within the order Neogregarinida and it was identified as Menzbieria chalcographi. This is the first record of an infection of D. micans by M. chalcographi. Possibly, this pathogen could be useful for the biological control of this destructive bark beetle.

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