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Iskalni niz: "avtor" (Maja Jurc) .

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41.
Insect pathogens with special reference to pathogens of bark beetles (COL. Solytidae: Ips typographus L.) : preliminary results of isolation of entomopathogenic fungi from two spruce bark beetles in Slovenia
Maja Jurc, 2004

Povzetek: This paper deals with the most important groups of insect pathogens, i.e. viruses, bacteria, fungi, nematodes and protozoans (microsporidia). We describe their basic characteristics, virulence, method of infecting or attackon the host, signs of illnesses in an affected host, pathogen survival in the outside environment, and the use of bioticcontrol of economically damaging insects. Particular importance is placed on bark beetle pathogens, which have been found in natural populations of hosts, particularly in the large spruce bark beetle (Scolytidae: Ips typographus L.). We also present ourexperience in studying entomopathogenic fungi on the species Dryocoetes autographus and Orthotomicus laricis in Slovenia.
Ključne besede: beetles pathogens, entomopathogenic fungi, biocontrol agents, insect pathogens
DiRROS - Objavljeno: 12.07.2017; Ogledov: 1135; Prenosov: 281
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Ophiostomatoid fungi (Ascomycota: Ophiostomataceae) associated with bark beetles and their possible economic impact in forests and timber production
Andreja Repe, Maja Jurc, 2010

Povzetek: Ophiostomatoid fungi are commercially and economically important group of fungi in forestry and timber production. This group is represented by several genera of Ascomycetes with common morphological characteristics, although withdistinct taxonomy and phylogeny. Several genera of ophiostomatoid fungi have been considered synonymous solely based on morphological similarities as a result of an adaptation to insect dispersal. Ophiostomatoid fungi cause considerable economic losses in the forestry and timber production due to sap stain and vascular wilt diseases. The threat of introduced ophiostomatoid fungi is increasing with the global timber trade and loose control measurements. An overview of the taxonomy, ecology, concept of association (mutualism/symbiosis) and the economic importance of ophiostomatoid fungi are provided.
DiRROS - Objavljeno: 12.07.2017; Ogledov: 1140; Prenosov: 289
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Spread and potential host range of the invasive oak lace bug [Corythucha arcuata (Say, 1832) - Heteroptera: Tingidae] in Eurasia
György Csóka, Anikó Hirka, Serap Mutun, Milka Glavendekić, Ágnes Mikó, Levente Szőcs, Márton Paulin, Eötvös Csaba Béla, Gáspár Csaba, Mariann Csepelényi, Maja Jurc, Dušan Jurc, 2020

Povzetek: The North American oak lace bug feeds on leaves of 'white oaks' in its native range. In Europe, it was first discovered in northern Italy in 2000. In recent years, it has subsequently spread rapidly and population outbreaks have been observed in several European countries. In the present study, we summarize the steps of its expansion. To predict its potential host range, we checked 48 oak species in 20 sentinel gardens in seven countries between 2013 and 2018. In total, 27 oak species were recorded as suitable hosts; 13 of them are globally new ones, 23 out of the 29 in section Quercus (white oaks, an intrageneric taxonomic unit within genus Quercus), including Asian oaks, native to Japan, Korea and China, and four out of five in section Cerris (another intrageneric unit of the same genus), were accepted as hosts. None of the species in section Lobatae (red oaks) or in the Ilex group was accepted. Host records were also collected in forest stands of 10 countries. We found 11 oak species that were infested. Outbreak populations were most commonly found on Quercus robur, Quercus frainetto, Quercus petraea and Quercus cerris, comprising widespread and outstandingly important oaks species in Europe. Based on our findings, we conclude that suitable hosts for oak lace bug are present in most of Europe and Asia. This means that a lack of hosts will likely not restrict further range expansion.
Ključne besede: Corythucha arcuata, host plants, non-native species, Quercus spp, sentinel gardens
DiRROS - Objavljeno: 20.02.2020; Ogledov: 213; Prenosov: 134
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Sensitivity analysis, calibration and validation of a phenology model for Pityogenes chalcographus (CHAPY)
Nikica Ogris, Mitja Ferlan, Tine Hauptman, Roman Pavlin, Andreja Kavčič, Maja Jurc, Maarten De Groot, 2020

Povzetek: A phenology model of Pityogenes chalcographus was developed. The model quite accurately simulates the seasonal dynamics of P. chalcographus. Sensitivity analysis revealed the most influential parameters. CHAPY was calibrated and validated for Slovenia. Development of the model revealed several knowledge gaps.
Ključne besede: six-toothed spruce bark beetle, insect outbreak, population dynamics, voltinism, ecological modelling, pheromone trap, trap tree, monitoring
DiRROS - Objavljeno: 03.06.2020; Ogledov: 147; Prenosov: 122
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