Casuarina Research Articles

Utjecaj ekspozicije krošnje na morfološka svojstva iglica devet četinjača

The aim of this research was to investigate if the crown exposure of some conifers influenced to needle properties. The leaf morphological traits of sixty-six trees of nine conifers: Atlas cedar, Austrian pine, Blue spruce, Douglas fir, European spruce, European yew, Serbian spruce, Silver fir, and White fir, from six Belgrade parks, were analyzed. Five needles were measured from each of the four main crown exposures. Length, width, area and perimeter of needles were investigated. Species, parks in which they were found, as well as crown exposures, differed mostly in needle length and needle width. Correlations between measured needle traits were determined by linear regression analysis. Strong positive correlations were found between the length, perimeter, and area of needles. The differences among the species in terms of light requirement determine species for individual planting as light-loving or partial shade species (Atlas cedar, European spruce, Serbian spruce, Blue spruce, Austrian pine and Douglas fir), or for group planting as shade-loving species (Silver fir, White fir and European yew).

Anadolu sarıçamının (Pinus sylvestris L. var. sylvestris) doğal yayılış alanı ve vejetasyon bileşimi

Anatolian Scots pine (P. sylvestris var. sylvestris) forests spreading in the northern part of Anatolia, Türkiye, and covering 2.1 million hectares show great variation in terms of the vegetation composition depending on both ecological conditions and human interference. The spreading and/or growing of Scots pine is mostly related to the sunny cold, subhumid continental climatic conditions as well as the cold and semiarid climate. It begins at the coastal belt of the Black Sea coast and rises up to 2700 m in the NE part of Anatolia, and continues towards the semiarid continental part of Central Anatolia. Scots pine is associated with Fagus orientalis, Castanea sativa, Tilia rubra, T. tomentosa, Alnus barbata, A. glutinosa, Quercus sp., etc. in the lower belt of the Black Sea coast, with Picea orientalis and Abies nordmanniana in the eastern upper belt of the Black Sea Mountains, and with Abies bornmulleriana in the middle and western parts of the Black Sea Region. It is composed of Pinus nigra and A. nordmanniana subsp. equi-trojani in the backward or southern parts of the Black Sea Region. Pure Scots pine stands occur in the subhumid continental part of NE Anatolia and the semiarid-subhumid continental part of Inner Anatolia. This study aims to highlight the natural occurrence of its forests, and to introduce their main vegetation composition reflecting ecological conditions.

Virulence of Dothistroma septosporum and D. pini on Pinus nigra and P. mugo under conditions of natural infection

AbstractDothistroma needle blight (DNB) is a severe needle disease of pines worldwide, caused by two closely related species, Dothistroma septosporum and D. pini. The two fungal species are similar not only in their morphological characteristics, but also cause very similar symptoms in their hosts, and have a similar ecology. The aim of this study was to compare the virulence of the two Dothistroma species in natural infection experiments on 2-year-old seedlings of two DNB susceptible pine species, Pinus nigra and P. mugo, in two seedling stands for each pathogen species. The virulence of the pathogens and presence of symptoms (symptomatic needles, red bands and acervuli) were assessed after 2 years of exposure to inoculum. The incidence of seedlings with DNB symptoms was 65% and 76% for P. nigra and P. mugo, respectively. No difference was found between D. septosporum and D. pini in any of the three DNB symptoms evaluated on seedlings of P. mugo. However, symptoms of disease differed between the two Dothistroma species on P. nigra. Variables that reflect the intensity of disease development, the number of red bands and acervuli per needle, showed a difference in virulence between D. septosporum and D. pini, but only in the case of the host species P. nigra. The results suggest that the virulence of the two Dothistroma species could be affected by host pine species and that there are differences in the susceptibility of individual pine species to D. septosporum and D. pini. Further factors could affect the virulence of these pathogens, including isolate origin, climatic or environmental factors.

The Effects of Stand Development Stages on Soil Carbon and Nitrogen Stocks in Black Pine, Scots Pine and Fir Stands in Türkiye

The influence of stand development stages on soil organic carbon (SOC) and total nitrogen (TN) stocks was examined in black pine (Pinus nigra Arnold.), Scots pine (Pinus sylvestris L.), and Kazdağı fir (Abies nordmanniana subsp. equi-trojanı (Aschers. & Sint. ex Boiss) Coode et Cullen), differing in the mean tree diameters in which reproduction stages (RS)=<8 cm, sapling or pole stages (SPS)= 8-19.9 cm, large pole stages (LPS)= 20-35.9 cm, and medium wood stages (MWS)=36-51.9 cm in three tree species located in northwestern Turkey. A total of 216 soil samples were collected and analyzed for pH, organic matter, bulk density, maximum water holding capacity, carbon, and nitrogen concentrations, and the SOC and TN stocks were calculated. SOC and TN stocks varied significantly among the four stand development stage classes. The SOC stock at 0-30 cm increased significantly due to an increase in the diameter of black stands (BPLPS and BPMWS). SOC stocks in all stand development stages peaked in the large pole (44.94 Mg/ha) and declined as the sapling or pole (37.71 Mg/ha) was replaced by medium wood stands (30.17 Mg/ha), and a low point (27.94 Mg/ha) was found in the reproduction stages of stand development for Scots pine. The TN stock at a soil depth of 0-30 cm ranged from 1.66 to 6.46 Mg/ha. The highest TN stock was observed in the SPSPS (6.46 Mg/ha) and FirRS (5.48 Mg/ha), and the lowest was observed in the BPLPS (1.66 Mg/ha) stands. The results illustrate that soil was the main storage of C and N in all different stand development stages of tree species.

An empirical assessment of the potential of post-fire recovery of tree-forest communities in Mediterranean environments

The accumulation of fuel and the homogenization of the landscape in Mediterranean forests are leading to an increasingly hazardous behavior of wildfires, fostering larger, more intense, severe, and frequent wildfires. The onset of climate change is intensifying this behavior, fostering the occurrence of extreme forest fires threatening the persistence of forest communities.In this study we present an assessment of the post-fire recovery potential of the most representative tree-forest communities affected by fire in Spain: Pinus halepensis, Pinus nigra, Pinus pinaster and Quercus ilex. A large database of field data collected during specific campaigns -carried out 25 years after the fire- is used in combination with remote sensing, forest inventory and geospatial data to build an empirical model capable of predicting the chances of recovery. The model, calibrated using Random Forest, combines information on burn severity (remote sensing estimates of the Composite Burn Index), local topography (slope and terrain aspect) and climatic data (mean values and trends of temperature and precipitation) to provide information on the degree of similarity (vegetation height, horizontal cover of the vegetation layer along vertical strata, aboveground biomass and species diversity) between the plots burned in the summer of 1994 and the unburned control.Overall, only 33 out of the 131 burned plots could be considered as recovered, that is, reaching a similar state to unburned stands in neighboring areas. Our results suggest a primary role played by burn severity (the higher the severity the lower the probability of recovery), but strongly modulated by local topographic features (higher probability of recovery on steep north-facing slopes). In turn, increasingly warm and wetter conditions increased the chance of recovery.

Mercury accumulation efficiency of different biomonitors in indoor environments: the case study of the Central Italian Herbarium (Florence, Italy)

Biomonitoring studies are often employed to track airborne pollutants both in outdoor and indoor environments. In this study, the mercury (Hg) sorption by three biomonitors, i.e., Pinus nigra bark, Pseudovernia furfuracea lichen, and Hypnum cupressiforme moss, was investigated in controlled (indoor) conditions. In comparison to outdoor environments, controlled conditions offer the opportunity to investigate more in detail the variables (humidity, temperature, pollutants speciation, etc.) that control Hg uptake. The biomonitors were exposed in two distinct periods of the year for 2 and 12 months respectively, in the halls of the Central Italian Herbarium (Natural History Museum of the University of Florence, Italy), which are polluted by Hg, due to past plant sample treatments. The Hg sorption trend was monitored every 3 weeks by recording: (i) the Hg content in the substrata, (ii) gaseous elemental mercury (GEM) concentrations in the exposition halls, (iii) temperature, (iv) humidity, and (v) particulate matter (PM) concentrations. At the end of the experiment, Hg concentrations in the biomonitors range from 1130 ± 201 to 293 ± 45 μg kg−1 (max–min) in barks, from 3470 ± 571 to 648 ± 40 μg kg−1 in lichens, and from 3052 ± 483 to 750 ± 127 μg kg−1 in mosses. All the biomonitors showed the highest Hg accumulation after the first 3 weeks of exposure. Mercury concentrations increased over time showing a continuous accumulation during the experiments. The biomonitors demonstrated different Hg accumulation trends in response to GEM concentrations and to the different climatic conditions (temperature and humidity) of the Herbarium halls. Barks strictly reflected the gaseous Hg pollution, while lichen and moss accumulation was also influenced by the climatic conditions of the indoor environment. Mercury bound to PM seemed to provide a negligible contribution to the biomonitors final uptake.

Canopy influence on soil properties in Austrian pine artificial stands

The aim of the present study is to track changes in the canopy (cover-abundance of the tree layer) of vegetation and cover of the forest litter, and the relationship between them and the dynamics of soil parameters in Austrian pine (Pinus nigra Arn.) plantations. The objects of study are 50-80-year-old artificial plantations of Austrian pine located in the xerothermic oak belt of five mountains in the area of Sofia. In each mountain, three test plots (SPs) were laid out, each measuring 400 m2 (Table 1). The main reason for choosing PP is the cover abundance of the first layer. Within each SP, the following metrics are measured: cover-abundance (%) of vegetation in each layer; the cover of plant litter (%). From all SPs, soil samples were taken from three depths: 0-10 cm, 10-20 cm and 20 -30 cm. An analysis of the content of soil organic matter was carried out, including: total nitrogen (N), the C/N ratio – calculation method, the reaction of the soil solution (pH) in the aqueous extract and the mechanical composition of the soil. The results show that the properties of the studied soils change to a significant extent in accordance with the cover abundance, especially in the first floor of the vegetation. Soil organic matter content, C/N ratio and mechanical composition are the indicators that most clearly reflect the relationship between the canopy and the cover of plant litter on the one hand, and soil properties. The proven, statistically significant differences in the values of these indicators emphasize the role of vegetation in soil-forming processes, the formation and change of soil fertility.

The facile production of Fe2O3-biochar electrocatalyst for methanol oxidation reaction

In this study, the facile-green method was applied for the production of electroactive composite anode material. For this purpose, biochar was produced via pyrolysis of Pinus nigra (PN) sawdust in a stainless-steel reactor at 300, 400 and 500 °C with 10 °C/min heating rate. The Fe2O3 particles were fabricated via the green synthesis method. The Fe2O3-biochar electrocatalyst was operated on Ni foam electrode and the potential application as an anode for methanol fuel cell was investigated in an alkaline medium. Field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), Brunauer-Emmett-Teller analysis (BET), and attenuated total reflectance Fourier transform infrared spectroscopy (FTIR/ATR) were used to characterize the morphology of the electrocatalyst samples. The electrochemical measurements of electrocatalyst samples were achieved via cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV) and chronoamperometry (CA). The enlarged surface area of biochar enabled the formation of more electroactive sites for methanol electrooxidation and favorable structures of biochar could support to increased electrocatalytic activity of catalysts for methanol oxidation and produce favorable matrices for Fe2O3 loading. The obtained results demonstrate that the electrooxidation of methanol occurred at 0.36 V. The favorable structures of biochar acted as a support, enhancing the electrocatalytic activity of Fe2O3 for methanol oxidation. The electrocatalyst demonstrated remarkable activity with almost 4 A g−1 current density at 0.55 V. The Rct values were 0.73 Ω and 0.45 Ω at 0.55 V, for Ni foam and Ni foam/Fe2O3-biochar, respectively. Long-term measurements demonstrated that the Ni foam/Fe2O3-biochar catalysts was remarkably stable, with a 4 % difference in current before and after the CA analysis.

Empirical Modelling of Stem Cambium Heating Caused by Prescribed Burning in Mediterranean Pine Forest

Little is known about the interactions between the variables involved in the post-fire response of Mediterranean pine species to prescribed burning (PB). Thus, it is essential to develop an empirical model in order to assess the influence of tree and stand attributes, burn season, and fire severity on the probability of stem cambium damage occurring. Prescribed burnings were conducted in different seasons and areas covering a wide climatic and ecological range. Potential explanatory variables were measured. A random effects hurdle model framework was used to evaluate the temperature duration above 60 °C as a proxy for stem cambium damage at tree scale. The results showed significant differences in cambium damage between the PB seasons. Pinus nigra was more resistant than other pine species. Bark thickness was critical for protecting cambium. Volume of crown scorch, percentage of stem scorch, and maximum outer bark temperature were directly related to temperature duration above 60 °C in the cambium. Prescribed burning conducted under tree canopy in Mediterranean pine species generally results in a low level of cambium damage. Empirical models could help managers to predict the effects of PB and thus select the most suitable prescriptions.

A comprehensive strategy for the conservation of forest tree genetic diversity: an example with the protected Pinus nigra subsp. salzmannii (Dunal) Franco in France

A comprehensive strategy for the conservation of forest tree genetic diversity: an example with the protected Pinus nigra subsp. salzmannii (Dunal) Franco in France

Species-Specific Level Variation in Polyamines in Coniferous and Deciduous Woody Plant Species in Urban Areas

Urban heat islands (UHIs) and global warming will unavoidably have a negative impact on human health in urban areas, making urban forests much more susceptible to the risk of heat waves than forests. It is pivotal for urban forest management to understand tree species’ adaptation mechanisms by focusing on the species-dependent variability of polyamines (PAs), significant players in the amelioration of biotic and abiotic stress in plants, to mitigate the negative effects of UHIs and global warming on human health. Based on this background, the content of major polyamines (PAs) (putrescine, spermidine, and spermine) and total phenolics and the corresponding antioxidant capacities were determined and analyzed in the 24 most prevalent deciduous and coniferous tree species found in urban areas, namely Futoški Park in Novi Sad (Serbia). High-performance liquid chromatography (HPLC) coupled with fluorometric detection (HPLC-FD) was used to separate and quantify major PAs from tree species. Results showed a species-specific level variation in polyamines, total phenolic, and antioxidant capacity in coniferous and deciduous woody plant species in inspected urban areas. In terms of total PA content, the most notable deciduous tree species were Betula pendula, Junglans regia, and Quercus rubra, while the coniferous tree species Thuja occidentalis, Taxodium distichum, Pinus nigra, and Abies concolor stand out. The most dominant foliar PA in most of the inspected species was putrescine (ranging from 527.67 to 10,049.3 nmol g−1 DW), followed by spermidine (from 250.56 to 2015.92 nmol g−1 DW) and spermine (from 168.8 to 718.41 nmol g−1 DW). Furthermore, significant intra-genus variability in terms of PA content was recorded within the genera Pinus, Thuja, and Picea. This study demonstrated that the PA and phenolic compounds, in combination with antioxidant assays, can serve as reliable and trustworthy criteria and descriptors for the selection of adaptable tree species in the context of urban climate–smart forestry.

Dead wood volume-to-carbon conversion factors by decay class for ten tree species in Croatia and eight tree genera globally

Dead wood (DW) is an important forest carbon (C) pool for which the reporting of C stock changes within the National Greenhouse Gas Inventory Report (NIR) is mandatory. The use of DW volume-to-carbon conversion factors by decay classes, i.e. DW basic density (DWBD) and C fraction (CF), or C density (CD) as their product, facilitates more accurate estimates of DW C stocks and C stock changes.We present DW conversion factors, namely DWBD, CF, and CD, by decay classes for six broadleaf (Quercus robur L., Carpinus betulus L., Alnus glutinosa Garnet., Fraxinus angustifolia Vahl., Fagus sylvatica L., and Quercus ilex L.) and four conifer (Abies alba Mill., Picea abies (L.) Karst., Pinus nigra Arnold and Pinus pinaster Aiton) tree species from Continental, Alpine and Mediterranean biogeographical regions of Croatia. For each tree species DW logs (diameter from 5 to 30 cm) were visually categorized into four decay classes and nine discs per decay class were sampled. In addition, three healthy trees of each species were felled down at the same location for estimating the basic density of fresh wood (BWD, decay class 0) and calculation of species-specific relative density reduction patterns. In total, 390 discs were sampled and analysed in the laboratory.Our results show that broadleaves, on average, have higher DWBD than conifers (p < 0.05) for decay classes 0–3, but for decay class 4 no difference (p < 0.05) was observed between these two tree species groups. Unlike for DWBD, CF showed no trend with decay class, but a difference (p < 0.05) in the average CF was found between broadleaves and conifers with the mean (s.e.) of 47.65% (0.12%) and 50.67% (0.23%), respectively. The application of decay class-specific CD by forest land use strata used in the Croatian NIR yielded 11.1% − 26.6% lower DW C pool estimates, compared to the current ones calculated using BWDs and default CF.DWBD data from our study was compared with DWBD data from the literature. We observed good agreement between national species-specific DWBD and global genus-specific DWBD for the great majority of investigated tree genera and decay classes. Therefore, we combined our results with the published data to provide a global DWBD meta-means with confidence intervals by decay classes for eight tree genera. Our results suggest that in the absence of local or national DWBD data, the use of genus-specific DWBD meta-means is justified.

Waterlogged wood remains found in a Late Bronze Age settlement (İnönü Cave) on the Western Black Sea coast of Türkiye

The remains of wooden structures belonging to the Late Bronze Age were unearthed during the excavations carried out in the İnönü Cave, which is located approximately 25 km inside the Ereğli district of Zonguldak, on the western Black Sea coast of Türkiye. Thanks to the special conditions of the cave, the woods that makes up the structures that have survived until today has been examined within the scope of this study. All wood flooring elements examined in this study consist of water-filled wood, except for one example (NNDK-1), which has semi-water-filled properties. In the construction of the wooden floor, one oak species from the white oak group (probably Quercus petraea (Matt.) Liebl.) and one pine species from the Sylvestris group (probably Pinus nigra Arnold), Alnus glutinosa (L.) Gaertner and Acer L. sp. were used. In addition, the most used genus in its construction was oak (Quercus L., section Quercus). The inhabitants of İnönü cave in the Late Bronze Age must have met their wood needs from nearby local resources. Wood anatomical analysis pointed out the occurrence of riverine forests formed by Black alder along the streams and temperate broadleaf and mixed forests formed by Sessile oak, maple, and Black pine in İnönü cave and its vicinity. These, together with others like Fagus orientalis Lipsky, Carpinus betulus L., Carpinus orientalis Mill., Salix alba L., and Populus nigra L., are the genera/species present in the region today.

Termo–mekanik yoğunlaştırma işleminin ahşap malzemenin fiziksel özellikleri üzerine etkisi

It can be made into high strength, and valuable products by compacting low density, and low commercial value wood species. In this study, black pine (Pinus nigra) and Uludağ fir (Abies nordmanniana subsp. bornmulleriana) tree species were densified by using Thermo-mechanical (TM) method, which is an environmental modification method, at 140 oC and two different ratios of 25% and 50% (in the radial direction). Compression ratio in air-dry moisture, spring-back ratio after densification, and physical properties of air-dry densities were determined. The obtained data were subjected to statistical analysis in the MSTAT-C program. According to the results, wood type, densification type, and all their interactions were found to be effective on the compression ratio, and spring-back ratio in air dry moisture. The compression ratio in air-dried moisture was lower in Uludağ fir (Uludağ fir: 0.40 gr/cm³, black pine: 0.49 gr/cm³) compared to black pine due to the spring-back effect. While the volumetric recovery (spring-back) rates were 15.44% in Uludağ fir, it was determined as 19.40% in black pine. After the condensation process, the air-dry density value increase was lower in black pine compared to Uludağ fir, and it was determined as 35.94% in Uludağ fir and 34.53% in Black Pine

Evaluation of urea formaldehyde (UF) as a surface coating material: Black pine wood and oriented strand board (OSB) coating by enhanced UF

In this study, the applicability of a urea formaldehyde (UF) resin as a wood surface coater was investigated. Organic fillers were used in the resin solution to prevent crack formation on the surface covered with UF resin. Oriented strand board (OSB) and Black pine (Pinus nigra Arnold.) massive wood were used to prepare the samples. To prepare the control group, 4 g of ammonium sulfate (AS) was added to 100 g of UF and blended at 1000 rpm for 5 min. The first group was prepared using 5 g of wheat flour (WF) in 100 g UF as an organic filler. The second group was prepared by adding 5 g of cellulose fiber (CF) to a 100 g of glue solution, and the results were compared with those of the control group. The mechanical characterization of the samples (abrasion and scratch analysis) and staining analyses of the samples were determined according to the relevant standards. In addition, the samples were subjected to accelerated weathering by manually applying periodic moisturizing and drying. According to the results, the abrasion and scratch resistances of the black pine samples were higher than those of the OSB samples. Although the addition of WF reduced the abrasion and scratch resistance of the surfaces, it also eliminated the crack formation on the surface before weathering. The abrasion and scratch analysis results of boards coated with UF were much higher than those of the particleboards and fiberboards covered with decorative paper. The weathering process increased stain visibility in all samples, especially in the WF-added sample. After weathering, an approximately 30-40% decrease in scratch and wear resistance was observed in all the samples. As a result, it was concluded that UF can be used to coat the surfaces of wooden boards together with organic fillers in semi-outdoor environments.

Fire Affects Tree Growth, Water Use Efficiency and Carbon Sequestration Ecosystem Service of Pinus nigra Arnold: A Combined Satellite and Ground-Based Study in Central Italy

The Mediterranean basin is an area particularly exposed to fire risk due to its climate and fire-prone vegetation. In recent decades, the frequency and intensity of wildfires increased, leading to negative effects on forests, such as a decrease in tree growth or an increase in tree mortality, producing a relevant loss of carbon sequestration ecosystem service. This study of the impacts of fires on forests is fundamental for planning adequate forest management strategies aimed at recovering and restoring the affected areas. In this framework, our research delves into the effects of a forest fire that, in 2017, affected a forest of black pine (Pinus nigra Arnold) in Central Italy. Combining satellite and terrestrial analyses, this study evaluated the impact of the fire on tree growth, water use efficiency and carbon sequestration capacity. Our findings highlight the importance of using remote sensing for the accurate identification of fire-affected areas and precise planning of ground-based activities. However, the integration of satellite data with forest surveys and sampling has proven crucial for a detailed understanding of fire’s effects on trees. Dendrochronology and stable isotopes have revealed the post-fire growth decline and altered water usage of defoliated trees. Furthermore, the quantification of CO2 sequestration highlighted a significant reduction in carbon uptake by damaged trees, with severe implications for this ecosystem service.

Role of black pine (Pinus nigra J. F. Arnold) in European forests modified by climate change

Role of black pine (Pinus nigra J. F. Arnold) in European forests modified by climate change

Chemical composition and in vitro antibacterial activity of bark extractives and suberin monomers from Pinus brutia and Pinus nigra

Chemical composition and in vitro antibacterial activity of bark extractives and suberin monomers from Pinus brutia and Pinus nigra

Assessment of Growth Performance of Casuarina equisetifolia Clones in Tropical Region of Jabalpur District of Madhya Pradesh, India

Casuarina equisetifolia L., commonly known as the Casuarina or Australian Pine, is a fast growing, evergreen tree native to the coastal regions of Southeast Asia, Australia, and the Pacific Islands and can be useful in carbon sequestration and in afforestation programme in tropical forest. An experiment was laid out at Tropical Forest Research Institute, Jabalpur (M.P.) India with an aim to assess the growth performance of Casuarina equsetifolia clones namely IFGTB CH-1, IFGTB CH-2, IFGTB CH-3, IFGTB CH-4, IFGTB CH-5, IFGTB CH-6, IFGTB CH-7, IFGTB CH-9, IFGTB CH-10 in tropical region of Madhya Pradesh comes under Kaymore plateau and Satpura Hills agroclimatic zone of the state. The results revealed that the clone IFGTB CH-5 produced the maximum volume per m3 followed by the Clone IFGTB CH-2 and IFGTB CH-4 because of the highest survival percentage among the all clones and maximum carbon stock was found in clone IFGTB CH-5 (0.044 tonnes) followed by CH-2 (0.028 tonnes), CH- 4 (0.026) and minimum carbon stock was found in CH-1 (0.016). Thus, Clone CH-5 is recommended for this region under afforestation programmes due to its fast growth within a short period of 2 years, quick pulpwood yield and maximum carbon sequestration.

Çam Kütüklerindeki Monochamus galloprovincialis (Cerambycidae) Populasyonlarına Karşı Steinernema carpocapsae (Steinernematidae)’nin Biyolojik Mücadelede Kullanılması

Aim of study: Pine wilt disease (PWD) is a serious threat to the susceptible pine forests. It is caused by Bursaphelenchus xylophilus (Nematoda: Parasitaphelenchidae) (Steiner and Buhrer 1934), Nickle 1970 and transmitted by Monochamus Dejean beetles. In the recent study, we assessed the effects of entomopathogenic nematode, Steinernema carpocapsae (Nematoda: Steinernematidae) against Monochamus galloprovincialis larvae in Anatolian black pine and Scots pine logs. &#x0D; Area of the study: The experiments were conducted in Duzce University, Faculty of Forestry and in a pine forest at Duzce University campus area. &#x0D; Material and methods: The mean number of eggs per pine logs, and the productivity of S. carpocapsae in M. galloprovincialis larvae were compared under laboratory conditions. The nematode experiments were conducted using oviposited pine logs in the field.&#x0D; Main results: The females of M. galloprovincialis oviposited more eggs on Scots pine compared to black pine logs. Both in black pine and in Scots pine, the survival rates of M. galloprovincialis after nematode application was significantly lower than control. &#x0D; Highlihts: As a result of the study, S. carpocapsae can be an efficient biological control agent of this wood-boring insect.