Sotirovski, Kiril

Preferred name

Sotirovski, Kiril

Official Name

Sotirovski, Kiril

Main Affiliation

kirils@sf.ukim.edu.mk

Now showing 1 - 10 of 34

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First records and general distribution of the plane tree lace bug (Corytucha ciliata) and the sycamore seed bug (Belonochilus numenius) in Kosovo
(University of Forestry, Sofia, 2021-05)
Muja, Ibrahim
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Risteski, Mihajlo
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Srebrova, Katerina
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The oriental plane tree (Platanus orientalis L.) is a common natural floristic element in Southern Balkans (Albania, Greece, North Macedonia, Serbia and Kosovo,) and is widely used in urban greenspace, as is also London plane tree (P. x acerifolia), especially in the last 2-3 decades. Unfortunately, both tree species are increasingly threatened by plant pathogenic fungi (Apiognomonia veneta (Sacc. & Speg.) Höhn; Ceratocystis platani (Walter) Engelbrecht & Harrington), as well as insect pests (Corythucha ciliata Say). The invasive plane tree lace bug (C. ciliata) and the sycamore seed bug (Belonochilus numenius Say), are Nearctic insect species which were firstly reported in Europe in 1964 and 2008, respectively. Both have spread in most plane tree regions of Europe and in the Balkans as well. The recent find of the seed bug in North Macedonia (2019) and its widespread presence, as well as omnipresence and high population density of the plane tree lace bug in that country (unpublished), prompted us to inspect urban and peri-urban plane trees in Kosovo, for which there are no previous records of these insects. During early October 2019 we registered presence of both insect species in urban and periurban plane tree populations Kosovo. Specimens were collected from all visited sites in Prishtina, Gjakova, Pegja, Uroshevac and Prizren from leaves and seed balls of P. x acerifolia and in the case of Prishtina from P. orientalis, and were identified in compliance to morphological characteristics typical for C. ciliata and B. numenius. Populations of C. ciliata were generally high, in extreme cases over 200 individuals (adults and larvae of all stages) per individual leaf. Further research is underway for detailed assessment of the distribution of both insect species on the total territory of Kosovo, as well as for establishment of population density, especially of C. ciliata which can pose a serious threat to the health status of plane populations. Although both species are well established and have been overlooked for many years (B. numenius) and many decades (C. ciliata), these are the first records for both the plane tree lace bug and the sycamore seed bug in Kosovo.
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Идентификација на причинителот на венење и сушење на јаболковите насади во преспанскиот регион
(Здружение за заштита на растенијата на Р.М., 2012)
Risteski, Mihajlo
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Banzdo, Katerina
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PHYTOPHTHORA CACTORUM (LEBERT & COHN) J. SCHRÖT AS CAUSAL AGENT OF DIEBACK OF CHESTNUT AND APPLE TREES IN MACEDONIA
(Macedonian Academy of Sciences and Arts, 2019-06-10)
Risteski, Mihajlo
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Woodward, Stephen
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Ježić, Marin
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<jats:p>From 2013–2017, 11 chestnut populations and 16 apple orchards/plantations in Macedonia were examined for health; soil, root and bark samples were collected from trees expressing symptoms regarded as Phytophthora specific. Using leaf baits of Prunus laurocerasus and selective V8 Agar (PARPNH), 19 pure Phytophthora sp. cultures were isolated and identified as P. cactorum by ITS sequencing. Sixteen isolates were from apple trees and 3 from chestnut trees. Phylogenetic analyses suggested slight distance between P. cactorum isolates originating from chestnut trees compared to those from apple orchards. Assessment of pathogenicity using chestnuts twigs showed no differences be-tween P. cactorum isolates from the two tree host species.</jats:p>
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Phytopthora spp. isolated from chestnut populations in the Republic of Macedonia
(УКИМ Шумарски факултет - Скопје, 2017-10)
Risteski, Mihajlo
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Rigling, Daniel
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Jezic, Marin
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Phytophthora species associated with woody plants in Macedonia
(IUFRO 125th Anniversary Congress, 18 – 22 September 2017, Freiburg, Germany, 2017-09)
Risteski, Mihajlo
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Jezic, Marin
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Curkovic Perica, Mirna
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Woodward, Stephen
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Induced mass conidia production in hypovirulent isolates of Cryphonectria parasitica on excised chestnut stems as means of biological control of chestnut blight
(Conference: IUFRO 125th Anniversary Cogress, 2017-09)
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Marin Jezic
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Mirna Ćurković-Perica
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Zorana Katanic
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Detected changes of population structure within a Cryphonectria parasitica population at the site Osoj, North Macedonia, during a time-span of over two decades
("Hans Em" Faculty for Forest Sciences, Landscape Architecture and Environmental Engineering, Skopje, 2022-06)
Risteski, Mihajlo
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Cokoski, Kristijan
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Tanovski, Vladimir
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Cryphonectria parasitica is historically considered as one of the most threatening plant diseases, and affects several species of Castanea worldwide. Applicability and success of control measures for the pathogenic fungus, consequently for control of its impact on European sweet chestnut Castanea sativa is highly dependent on presence of hypovirulence on populational levels, as well as on the population structure characteristics, most prominently vc-type diversity. In this study we compared the main characteristics of isolates of C. parasitica collected on 2 occasions with a time gap of 22 years (1998 and 2020) from the same site Osoj in the Kicevo region, in North Macedonia. We analyzed culture morphology, v-c type, and presence of hypovirulence of 72 isolates collected in 1998 and 39 isolates in 2020, by standard methods in vitro. In terms of the v-c type, from the total of 72 isolates collected in 1998, 49 (68%) were EU-12, 22 (30,55%) were EU-2 and 1 (1,38%) was EU-1. Of the 39 isolates collected in 2020, 32 (82%) were EU-12, 7 (18%) were EU-2, and no other vc types were detected, including EU-1. In 1998, 7 (13%) out of 54 assessed isolates were designated as hypovirulent, while in 2020 the proportion of hypovirulent isolates was much increased (33.33%), i.e. 13 of the total of 39. For the two-decade time frame, v-c type EU-12 remained dominant, with an additional increment of its prevalence on the populational level. From a practical point of view, it is more important that prevalence of hypovirulence was increased by over two-fold (x 2.57). This is likely the most important reason for difficulty during collection of viable samples, ultimately leading to a much lesser number of samples collected in 2020. As a conclusion, the C. parasitica population in Osoj has not only not diversified, but the most dominant vc type has become even more established with time. The relatively high proportion of hypovirulent isolates and the large increment detected in just over two decades timeframe, is interesting to further investigate in relation to overall health status of the chestnut population in Osoj
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Diversity of Cryphonectria parasitica in callused chestnut blight cankers on European and American chestnut
(Wiley, 2019-11-20)
Ježić, Marin
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Kolp, Matthew
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Prospero, Simone
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Double, Mark
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Biological control of chestnut blight - Efficiency of natural hypovirulence
(УКИМ Шумарски факултет - Скопје, 2017-10)
Schwartz, Janine
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Jezic, Marin
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Risteski, Mihajlo
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Curkovic Perica, Mirna
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Prospero, Simone
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Coppice Forest Management Planning and the Regeneration Potential of Pure and Mixed Oak Coppice Forests in North Macedonia
(Hrvatski Sumarski Institut (Croatian Forest Research), 2019-11-03)
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Dubravac, Tomislav
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Tanovski, Vladimir
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Nestororvski, Ljupco
<jats:p><jats:bold>Background and Purpose:</jats:bold> Coppicing is the most widely used silvicultural system in North Macedonia and coppice forests together with shrubs cover cca. 69% of the forest cover area. Pure and mixed stands of oak coppice forests alone cover about 50% of the total forest area subject to current Forest Management Plans. In general, coppices are routinely managed, especially when coppicing as a system is planned to be continued. However, sustainability can be threatened if attention is not paid regarding the age of trees/stands and the presence of undesired tree species. The purpose of this study was to determine: (1) quantitative and qualitative aspects of planned management activities in oak coppices throughout the country, (2) the resprouting potential of over-mature oak coppices, and (3) their potential for generative regeneration. <jats:bold>Materials and Methods</jats:bold> <jats:bold>: </jats:bold>We analyzed all official forest management plans in the country, in order to assess planned activities and the methods of management. Additionally, 21 experimental plots were set in order to determine the resprouting potential of over-mature (85 to 95 years) coppices of <jats:italic>Quercus petraea</jats:italic> and <jats:italic>Q. frainneto</jats:italic> which previously have been subject of clear-cutting. We took a total count of sprouts on all experimental plots, while generative regeneration seedlings were counted on 4 schematically positioned subplots in each experimental plot. Sprouts and generative seedlings were categorized by height. <jats:bold>Results and Conclusions:</jats:bold> According to the data from forest management plans, coppicing is planned to remain as a management system on 401,636 ha, of the total of 450,975 ha of oak coppice forests. Indirect conversion to high forests is planned on 39,137 ha, while direct conversion with substitution is planned for 10,202 ha. In field trials, resprouting was registered on only 38% of the stools. Generative regeneration was recorded in both oak species in numbers which indicate good potential for conversion of oak coppice stands into high forests by seed felling. However, numerous sprouts of other species ( <jats:italic>Corylus avellana</jats:italic>, <jats:italic>Fraxinus ornus</jats:italic>, <jats:italic>Acer heldreichii</jats:italic>), which reach up to 3 meters in height within two seasons, are potentially dangerous for dominating oak seedlings.</jats:p>

Sotirovski, Kiril

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