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Michelle Cleary

Michelle Cleary
I am a Forest Pathologist working with native and alien invasive forest pathogens that threaten the economic and ecological sustainability of forests. I study the intimate relationships between fungal and oomycete organisms and trees, the intricacies underlying invasive biology, and mechanisms by which trees defend themselves against plant pathogens. Understanding biochemical- and genetic-based interactions of pathogens with their host trees and the environment is critical to maintaining healthy, sustainable, and resilient forests in a changing world. Our Forest Pathology group at Alnarp is working several of these aspects. In addition, several new projects in the group include various molecular, chemical and imaging techniques and tools for early detection and diagnostics to identify and monitor damaging agents in trees and forests.


Senior Lecturer in Forest Pathology, Associate Professor (Docent)


Currently, I teach 'Forest Health' in the course “Broadleaves - Forest dynamics, biodiversity and management for multiple use” (15 ECTS) and lecture in the course "Urban Forestry – management of urban forests and trees" (15 ECTS). I have previously lectured on various topics related to tree health in the courses “Plant Protection”, “Sustainable Forestry in Southern Sweden”, and "Phenotyping Technologies in Plant-environment Interactions – Integrated Analysis of Omics Data". I will also teach on upcoming courses in “Trees: structure and function” (15 HEC) and “Tree and Forest Health” (7.5 HEC) in the new International Bachelor Programme in Forest and Landscape Management. 


During my 15+ years career as a Forest Pathologist, I have been conducting research on a broad array of forest pathogens, including root rot pathogens of conifers (Armillaria, Heterobasidion, Inonotus, and Phellinus); invasive forest pathogens including Phytophthora root dieases, ash decline, and white pine blister rust, canker and rust diseases of poplar and larch; and several native and introduced needle and shoot blight diseases of pine. 


I currently collaborate with Assoc. Prof. Johanna Witzell (SLU; invasive forest Phytophthora pathogens in forests, urban areas, nurseries, fungal endophytes and microbiome studies), Dr. Mateusz Liziniewicz (The Forest Research Institute - Skogforsk; ash dieback and larch canker disease). In addition, I collaborate with Assoc. Prof. Jonas Rönnberg (SLU; Heterobasidion root rot), Dr. Patrick Sherwood (SLU; biochemistry of host-pathogen interactions of trees; Diplodia shoot and tip blight) and Dr. Carmen Romeralo Tapia (SLU; tree microbiome, ash dieback, Phytophthora).

Among my international collaborators, currently I have projects running with Prof. Stephen Woodward (University of Aberdeen; foliar diseases of conifers and broadleaves, ash dieback, chemical volatiles for early detection of pests and pathogens, pathways of introduction for alien invasive species); Prof. Enrico Bonello (Ohio State University; spectroscopy-based tools for advanced phenotyping, tree chemical defenses in Fraxinus, sentinel plantations as early warning for new and emerging pests/pathogens), Dr. Simone Prospero (WSL; invasive Phytophthora diseases, Armillaria root rot), Assoc. Prof. Rein Drenkhan (Estonian University of Life Sciences; emerging pine needle diseases; forest Phytophthora pathogens), Prof. Tuğba Doğmuş Lehtijarvi and Dr. Funda Oskay (Isparta and Çankırı Karatekin Universities, respectively; pine needle diseases; Fraxinus foliar endophytes), Dr. Diana Marčiulynienė (Lithuanian Forest Research Institute; ash dieback), and Dr. Iryna Matsiakh (Ukrainian National Forestry University; forest Phytophthora pathogens in Ukraine, Fraxinus foliar endophytes).


I did my forestry education in Canada at Lakehead University (1998-2001) and later obtained my PhD degree in Forestry (Forest Pathology) in 2007 from the University of British Columbia under the supervision of Prof. Bart van der Kamp and Dr. Duncan Morrison. My PhD thesis dealt with the biology and control of Armillaria root disease in the interior forests of British Columbia; specifically investigating differential resistance among conifers and resistance mechanisms operating in trees.

Between 2006 and 2010 I worked as the Regional Forest Pathologist for the British Columbia Ministry of Forests, Range and Natural Resource Operations, in the Southern Interior Forest Region based in Kamloops, British Columbia, Canada. There I served as the regional expert being responsible for and covering an area approximating 25 million ha (or ~30% of the provincial landbase); and worked with the forest sector and other key stakeholder groups on practical and operational issues as it relates to forest disease and sustainable forest management, including:

   ·   refined policies and practice standards to accomplish disease prevention and control

   ·  development and implementation of applied research and control projects to assess, evaluate and monitor impacts of disturbances, forest pathogen behavior, and the effectiveness of various forest disease management strategies

   ·  extension and training activities activities for the forest sector

Teaching in the subject Forest Pathology: Between 2003 and 2010 I taught undergraduate courses in Forest Pathology in different capacities as both term courses and distance education at the University of British Columbia and Thompson Rivers Unversity where I held an Adjunct position for 4 years. 

Post-Doc research: I came to SLU in 2011 as a Post-doc in the Department of Forest Mycology and Plant Pathology in Uppsala where I collaborated with Jan Stenlid and Malin Elfstrand on research with ash decline.

Current research: In 2015, I moved to my current Department at the Southern Swedish Forest Research Centre in Alnarp where I am one of three senior researchers in the Forest Pathology Lab along with Dr. Johanna Witzell and Dr. Jonas Rönnberg hosting a team of Post-docs, PhD students, and technical staff all working with diverse issues in forest pathology: pine needle diseases (Diplodia sapinea, Lecanosticta acicola); Heterobasidion root rot in production forests; Armillaria root rot, Dutch elm disease; Ash dieback; Phytophthora diseases in forests, urban areas and nurseries; pathogen damage in Christmas tree plantations; fungal endophytes in plants, soil and seeds; tree microbiome; chemical ecology; host-pathogen interactions; molecular diagnostics; and plant biosecurity. 


Currently: I host two Post-doc researchers (Dr. Patrick Sherwood - an expert in chemical ecology; Diplodia, and VOCs analyses; and Dr. Iva Franic - an expert in sentinel plantations as a tool for early detection of invasive species; fungal community analyses in plants and seeds). I am main supervisor to two PhD students: Ida Nordström who is working with different techniques for early detection of invasive forest pathogens funded by the Swedish Research Council FORMAS, and Hanna Bernö who is working with ash dieback, ex-situ conservation of European ash and resistance breeding, funded by the Swedish Foundation for Strategic Research (SSF). I am also a co-supervisor to Noelia López-García who is working within the MSCA ITN project "PROTECTA" (main supervisor: Johanna Witzell). 

Previously: I have hosted 3 Post-docs (during 2016-2019): Tove Hultberg, ecological impacts of ash dieback; Marjan Ghasemkhani, host-pathogen responses/ash-dieback; Iryna Matsiakh, Phytophthora pathogens in Ukraine).  I have been co-supervisor to 3 PhD students: Li-Ying Wang (2014) "Impact of Heterobasidion spp. Root Rot in Conifer Trees and Assessment of Stump Treatment", Diem Nguyen (2015) "Effects of tree species diversity on foliar fungal distribution", and Marta Agostinelli "Fungal assemblages in forest trees-influence of internal and external conditions". I have supervised undergraduate projects (8 Masters and 5 Bachelors)  mainly on topics including fungal endophytic diversity in seeds, ash dieback, and Phytopthhora. Since 2013 I have also supervised a total of 18 international visiting students and researchers on short-term research stays. 

Selected publications


Chaudhary, R., Rönneburg, T., Stein Åslund, M., Lundén, K., Brandström Durling, M., Ihrmark, K., Menkis, A., Stener, L-G., Elfstrand, M., Cleary, M., Stenlid, J. 202X. Marker-trait associations for tolerance to ash dieback in common ash. Forests. [submitted]

Franić, I., Prospero, S. Adamson, K., Allan, E., Auger-Rozenberg, M-A., Augustin, S., Avtzis, D., Barta, M., Boroń, P., Bragança, H., Brestovanská, T., Burgess, T., Burokienė, D., Černý, K., Cleary, M., Corley, J., Coyle, D.R., Csóka, G., Davydenko, K., Elsafy, M.A.O., Eötvös, C., de Groot, M., Diez, J.J., Doğmuş Lehtijärvi, H.T., Drenkhan, R., Fan, J-T., Grabowski, M., Grad, B., Havrdova, L., Hrabetova, M., Iede, E.T., Kacprzyk, M., Kenis, M., Kirichenko, N., Lacković, N., Lazarević, J., Leskiv, M., Li, H., Madsen, C.L., Matošević, D., Matsiakh, I., Meffert, J., Migliorini, D., Mikó, A., Nikolov, C., O'Hanlon, R., Oskay, F., Paap, T., Parpan, T., Petrakis, P.V., Piškur, B., Ravn, H.P., Ronse, A., Roques, A., Schühli, G.S., Sivickis, K., Talgø, V., Tomoshevich, M., Uimari, A., Ulyshen, M., Vettraino, A.M., Villari, C., Wang, Y., Witzell, J., Zlatković, M., Eschen. R., 202X. Worldwide diversity of endophytic fungi and herbivorous insects associated with dormant tree twigs. Scientific Data. [submitted]

Elfstrand, M., Chen, J., Cleary, M., Halecker, S., Ihrmark, K:, Karlsson, M., Davydenko, K., Stenlid, J., Stadler, M., Brandström Durling, M. 202X. Comparative analyses of the Hymenoscyphus fraxineus and Hymenoscyphus albidus genomes reveals difference of transposable elements expansion between a pathogenic and a non-pathogenic fungus. BMC Genomics. [submitted].

Põlme, S., Abarenkov, K., Nilsson, R.H., Lindahl, B., Clemmensen, K., Kauserud, H., Kjoller, H., Baldrian, P., Guldberg, T.,  Frøslev, R., Adojaan, K., Vizzini, A., Suija, A., Pfister, D., Baral, H-O, Järv, H., Madrid, H., Nordén, J., Liu, J-K, Pawlowska, J., Põldmaa, K., Pärtel, K., Runnel, K., Hansen, K., Hyde, K.D., Larsson, K-H, Sandoval-Denis, M., Smith, M-E, Toome-Heller, M., Wijayawardene, N.N., Menolli Jr., N.N., Reynolds, N.K., Drenkhan, R., Maharachchikumbura, S.N.S., Gibertoni, T.B., Læssøe, T., Davis, W., Tokarev, Y., Corrales, A., Mayra Soares, A., Agan, A., Argüelles- Moyao, A., Detherige, A., de Meiras-Ottoni, A., Machado, A.R., Verbeken, A., Cui, B., Marín, C., Stanton, D., Gohar, D., Wanasinghe, D.N., Otsing, E., Aslani, F., Griffith, G.W., Grossart, H-P, Masigol, H., Rojas-Jimenez, K., Timling, I., Hiiesalu, I., Mujica, M.I., Oja, J., Geml, J., Alvarez Manjarrez, J., Ilves, K., Loit, K., Adamson, K., Nara, K., Küngas, K., Biteneks, K., Irinyi, L., Nagy, L., Zhou, L-W., Varga, T., Wagner, L., Aime, M.C., Öpik, M., Metsoja, M., Ryberg, M., Vasar, M., Murata, M., Nelsen, M.P., Cleary, M., Samarakoon, M.C., Doilom, M., Bahram, M., Johnston, P., Kohout, P., Chen, Q., Amiri, R., dos Santos Chikowski, R., Mendez-Alvarenga, R-L., Perera, R., Orijel, R.G., Gielen, R., Phookamsak, R., Jayawardena, R.S., Rahimlou, S., Tibpromma, S., Brown, S.P., Sepp, S-K, Mundra, S., Luo, Z-H., Bose, T., Vahter, T., Netherway, T., Yang, T., Lumbsch, H.T., Tian, Q., May, T., Coimbra, V.R.M:, de Lima, V.X., de Oliviera, V.R.T., Lu, Y., Matsuda, Y., Miyamoto, Y., Li, W., Kõljalg, U., Tedersoo, L.. 202X. FungalTraits: a user-friendly traits database of fungi and fungus-like stramenopiles. Fungal Diversity. [submitted]

Agostinelli, M., Nguyen, D., Witzell, J., Cleary, M. 202X. Phenotypic susceptibility of Fraxinus excelsior mycobiome to the ash dieback pathogen Hymenoscyphus fraxineus. Frontiers in Forest and Global Change: Pests, Pathogens, and Invasions. [submitted]

Cleary, M., Blomquist, M., Marchand, M., Witzell, J. 2020. Pathogenic Oomycetes in rhizosphere soil of ornamental plants from Swedish horticultural nurseries. Forest Pathology. [submitted]

Oskay, F.; Cleary, M.; Doğmuş, H.T., Lehtijärvi, A.; Woodward, S.; Vettraino, A.M. 2020. Seed quantity affects the microbial community composition detected using high-throughput sequencing technology. Journal of Applied Microbiology. [submitted]

Matsiakh, I., Kramarets, V., Cleary, M. 2020. Occurrence and diversity of Phytophthora species in declining broadleaf forests in western Ukraine. Forest Pathology. [submitted]

Eshghi Sahraeil, S., Cleary, M., Stenlid, J., Brandström-Durling, M., Elfstrand, M. 202X. Transcriptional responses in developing lesions of European ash reveal genes responding to fungal infection by Hymenoscyphus fraxineus. BMC Plant Biology [in press]

Drenkhan, R.; Ganley, B.; Martín-García, J.; Vahalík, P.; Adamson, K.; Adamčíková, K.; Ahumada, R.; Blank, L.; Bragança, H.; Capretti, P.; Cleary, M.; Cornejo, C.; Davydenko, K.; Diez, J.J.; Lehtijärvi, H.T.D.; Dvořák, M.; Enderle, R.; Fourie, G.; Georgieva, M.; Ghelardini, L.; Hantula, J.; Ioos, R.; Iturritxa, E.; Kanetis, L.; Karpun, N.N.; Koltay, A.; Landeras, E.; Markovskaja, S.; Mesanza, N.; Milenković, I.; Musolin, D.L.; Nikolaou, K.; Nowakowska, J.A.; Ogris, N.; Oskay, F.; Oszako, T.; Papazova-Anakieva, I.; Paraschiv, M.; Pasquali, M.; Pecori, F.; Rafoss, T.; Raitelaitytė, K.; Raposo, R.; Robin, C.; Rodas, C.A.; Santini, A.; Sanz-Ros, A.V.; Selikhovkin, A.V.; Solla, A.; Soukainen, M.; Soulioti, N.; Steenkamp, E.T.; Tsopelas, P.; Vemić, A.; Vettraino, A.M.; Wingfield, M.J.; Woodward, S.; Zamora-Ballesteros, C.; Mullett, M.S. Global Geographic Distribution and Host Range of Fusarium circinatum, the Causal Agent of Pine Pitch Canker. Forests 2020, 11, 724. 

Hultberg, T., Sandberg, J., Felton, A., Öhman, K., Witzell, J., Rönnberg, J., Cleary, M. 2020. Ash dieback risks an extinction cascade. Biological Conservation. Volume 244, April 2020, 108516 

Blomquist, M., Larsson Herrera, S. Hofmann, J., Beram, R.C., Cleary, M., Rönnberg, J. 2020. Size matters but is big always better? Effectiveness of urea and Phlebiopsis gigantea as treatment against Heterobasidion on Picea abies stumps of variable size. Forest Ecology and Management. 462, 117998 

Xu, X., Wang, W., Cleary, M., Wang, P., Lu, N., Sun, Y., Rönnberg, J. 2020. Slope position affects arbuscular mycorrhizal fungi (AMF) rather than thinning intensity in Chinese fir plantations. Forests 2020, 11(3), 273; 

Elvira-Recuenco, M.; Cacciola, S.O.; Sanz-Ros, A.V.; Garbelotto, M.; Aguayo, J.; Solla, A.; Mullett, M.; Drenkhan, T.; Oskay, F.; Aday Kaya, A.G.; Iturritxa, E.; Cleary, M.; Witzell, J.; Georgieva, M.; Papazova-Anakieva, I.; Chira, D.; Paraschiv, M.; Musolin, D.L.; Selikhovkin, A.V.; Varentsova, E.Y.; Adamčíková, K.; Markovskaja, S.; Mesanza, N.; Davydenko, K.; Capretti, P.; Scanu, B.; Gonthier, P.; Tsopelas, P.; Martín-García, J.; Morales-Rodríguez, C.; Lehtijärvi, A.; Doğmuş Lehtijärvi, H.T.; Oszako, T.; Nowakowska, J.A.; Bragança, H.; Fernández-Fernández, M.; Hantula, J.; Díez, J.J. 2020. Potential interactions between invasive Fusarium circinatum and other pine pathogens in Europe. Forests 2020, 11(1), 7; 

Zamora-Ballesteros, C.; Diez, J.J.; Martín-García, J.; Witzell, J.; Solla, A.; Ahumada, R.; Capretti, P.; Cleary, M.; Drenkhan, R.; Dvořák, M.; Elvira-Recuenco, M.; Fernández-Fernández, M.; Ghelardini, L.; Gonthier, P.; Hernández-Escribano, L.; Ioos, R.; Markovskaja, S.; Martínez-Álvarez, P.; Muñoz-Adalia, E.J.; Nowakowska, J.A.; Oszako, T.; Raposo, R.; Santini, A.; Hantula, J. 2019. Pine Pitch Canker (PPC): Pathways of Pathogen Spread and Preventive Measures. Forests 2019, 10(12), 1158; 

Vainio, E.J., Bragança, H., Cleary, M., Fourie, G., Georgieva, M., Ghelardini, L., Hannunen, S., Ioos, R., Martín-García, J., Martínez Álvarez, P. Mullett, M:, Oszako, T., Papazova –Anakieva, I., Piškur, B., Romeralo, C., Sanz-Ros, A-V., Steenkamp, E.T., Tubby, K., Wingfield, M.J., Diez, J.J. 2019. Sampling and detection strategies for the Pine Pitch Canker (PPC) disease pathogen Fusarium circinatum in Europe. Forests 2019, 10(9), 723;

Fernández, M.M.; Naves, P.; Musolin, D.L.; Selikhovkin, A.V.; Cleary, M.; Chira, D.; Paraschiv, M.; Papazova-Anakieva, I.; Drenkhan, T.; Georgieva, M.; Altunisik, A.; Morales, C.; Tabaković-Tošić, M.; Avtzis, D.N.; Georgiev, G.; Doychev, D.; Nacheski, S.; Trestic, T.; Elvira-Recuenco, M.; Diez J.J., Witzell, J. 2019. Pitch canker disease and insects: Regional risks, environmental regulation and practical management options. Forests 2019, 10(8), 649;

Cleary, M., Oskay, F., Doğmuş-Lehtijärvi, T., Lehtijarvi, A., Woodward, S., Vettraino, A.M. 2019. Cryptic risks to forest biosecurity associated with the global movement of commercial seed. Forests. 10, 459;

Felton, A., Petersson, L., Nilsson, O., Witzell, J., Cleary, M., Felton, A.M., Björkman, C., Ode Sang, Å., Jonsell, M., Holmström, E., Nilsson, U., Rönnberg, J., Kalén, C., Lindbladh, M. 2019. The tree species matters: Biodiversity and ecosystem service implications of replacing Scots pine production stands with Norway spruce. Ambio    

Cleary, M., Laas, M., Oskay, F., Drenkhan, R. 2019. First report of Lecanosticta acicola on exotic Pinus mugo in southern Sweden. Forest Pathology. 2019;49:e12507.  

Morales-Rodríguez, C., Anslan, Sten., Auger-Rozenberg, M., Augustin, S., Baranchikov, Y., Bellahirech, A., Burokiene, D., Cepukoit, D., Çota, E., Davydenko, K., Doğmuş-Lehtijärvi, T., Drenkhan, R., Drenkhan, T., Eschen, R., Glavendekić, M., de Groot, M., Kacprzyk, M., Kenis, M., Kirichenko, N., Matsiakh, I., Musolin, D. L., Nowakowsa, J. A., O’Hanlon, R., Prospero, S., Roques A., Santini, A., Talgø, V., Tedersoo, L., Uimari, A., Vannini, A., Witzell, J., Woodward, S., Zambounis, A., and Cleary, M. 2019. Forewarned is forearmed: preventive detection of potentially invasive pests and pathogens in sentinel plantings. Neobiota. 47: 95-123.  

Tedersoo, L., Drenkhan, R., Anslan, S. Morales-Rodriguez, C., and Cleary, M. 2019. High-throughput identification and diagnostics of pathogens and pests: overview and practical recommendations. Molecular Ecology Resources. 19, 47-76. 

Roy H, Groom Q, Adriaens T, Agnello G, Antic M, Archambeau A, Bacher S, Bonn A, Brown P, Brundu G, López B, Cleary M, Cogălniceanu D, de Groot M, De Sousa T, Deidun A, Essl F, Fišer Pečnikar Ž, Gazda A, Gervasini E, Glavendekic M, Gigot G, Jelaska S, Jeschke J, Kaminski D, Karachle P, Komives T, Lapin K, Lucy F, Marchante E, Marisavljevic D, Marja R, Martín Torrijos L, Martinou A, Matosevic D, Mifsud C, Motiejūnaitė J, Ojaveer H, Pasalic N, Pekárik L, Per E, Pergl J, Pesic V, Pocock M, Reino L, Ries C, Rozylowicz L, Schade S, Sigurdsson S, Steinitz O, Stern N, Teofilovski A, Thorsson J, Tomov R, Tricarico E, Trichkova T, Tsiamis K, van Valkenburg J, Vella N, Verbrugge L, Vétek G, Villaverde C, Witzell J, Zenetos A, Cardoso A (2018) Increasing understanding of alien species through citizen science (Alien-CSI). Research Ideas and Outcomes 4: e31412. 

Agostinelli, M., Cleary, M., Martín, J.A., Albrectsen, B., Witzell, J. 2018. Pedunculate oaks (Quercus robur L.) differing in vitality as reservoirs for fungal biodiversity. Frontiers in Microbiology 9: 1758 

Villari, C., Dowkiw, A., Enderle, R., Ghasemkhani, M., Kirisits, T., Kjaer, E., Marčiulynienė, D., McKinney, L., Metzler, B., Rostgaard Nielsen, L., Pliūra, A., Stener, L-G., Suchockas, V., Rodriguez-Saona, L., Bonello, P., and Cleary, M. 2018. Advanced spectroscopy-based phenotyping offers solutions to the ash dieback epidemic. Nature Scientific Reports. 8, Article number: 17448 (2018) 

Cleary, M., Oskay, F., Rönnberg, J., Woodward, S. 2018. First report of Pleuroceras pseudoplatani on Acer rubrum, A. griseum, A. saccharinum, A. negundo, A. circinatum, and A. macrophyllum in Scotland. Forestry Chronicle. 94: 147-150.

Grenville-Briggs, L-J., Kushwaha, S.K., Cleary, M.R., Witzell, J., Chawade, A., Savenkov, E., Whisson, S.C., Vetukuri, R.R. 2017. Draft Genome of the Oomycete pathogen Phytophthora cactorum Strain LV007 isolated from European Beech (Fagus sylvatica) Genom Data 12: 155–156. DOI: 10.1016/j.gdata.2017.05.010.

Marčiulynienė, D., Davydenko, K., Stenlid, J., and Cleary, M. 2017. Can pruning help maintain vitality of ash trees affected by ash dieback in urban landscapes? Urban Forestry and Urban Greening. 27: 69-75 

Marčiulynienė, D., Davydenko, K., Stenlid, J., Shabunin, D., and Cleary, M. 2017. Fraxinus excelsior seed is not a probable introduction pathway for Hymenoscyphus fraxineus. Forest Pathology. 2017;e12392. 

Stenlid, J., Elfstrand, M., Cleary, M., Ihrmark, K., Karlsson, M., Davydenko, K., Brandström-Durling, M. 2017. Genomes of Hymenoscyphus fraxineus and Hymenoscyphus albidus encode surprisingly large cell wall degrading potential, balancing saprotrophic and necrotrophic signatures. Baltic Forestry. 23: 41-51. 

Prospero, S., and Cleary, M. 2017. (Invited article) Focused Review: Effects of host variability in the spread of invasive forest diseases. Forests 8, 80; 

Klopfenstein, N.B., Stewart, J.E., Ota, Y., Hanna, J.W., Richardson, B., Ross-Davis, A., Elías-Román, R., Korhonen, K., Keča, N., Iturritxa, E., Alvarado-Rosales, D., Solheim, H., Brazee, N., Łakomy, P., Cleary, M.R., Haegawa, E., Kikuchi, T., Garza-Ocañas, F., Tsopelas, P., Rigling, D., Prospero, S., Tsykun, T., Bérubé, J., Stefani, F., Jafapour, S., Antonín, V., Tomšovský, M., McDonald, G., Woodward, S., Kim, M.-S. 2016. Insights into the phylogeny of northern hemisphere Armillaria: split-network and Bayesian analyses of translation elongation factor 1-α sequences. Mycologia. 109:1, 75-91, DOI: 10.1080/00275514.2017.1286572.

Skovsgaard, J-P., Wilhelm, G-J., Thomsen, I.M., Metzler, B., Kirisits, T., Havrdová, L., Enderle, R., Dobrowolska, D., Cleary, M., Clark, J. 2017. Silvicultural strategies for Fraxinus excelsior in response to dieback caused by Hymenoscyphus fraxineus. Forestry 2017; 90, 455–472, doi:10.1093/forestry/cpx012.

Power, M.W.P., Hopkins, A.J.M., Chen, J., Bengtsson, S.B.K., Vasaitis, R., and Cleary, M.R. 2017. European Fraxinus species introduced into New Zealand retain many of their native endophytic fungi. Baltic Forestry. 23: 74-81.

Cleary, M., Blomquist, M., Vetukuri R.R., Böhlenius, H., Witzell, J. 2017. Susceptibility of common tree species in Sweden to Phytophthora cambivora, P. plurivora and P. cactorum. Forest Pathology 47, 3, e12329. doi:10.1111/efp.12329.

Nguyen, D., Boberg, J., Cleary, M., Bruelheide, H., Hönig, L., Koricheva, J., Stenlid, J. 2017. Foliar fungi of silver birch in pure and mixed tree species stands: comparing high-throughput sequencing and morphological assessment. Nature: Scientific Reports 7, 41801; doi: 10.1038/srep41801 (2017).

Cleary, M., Blomquist, M., Ghasemkhani, M., and Witzell, J. 2016. First report of Phytophthora gonapodyides causing stem canker on European beech (Fagus sylvatica) in southern Sweden. Plant Disease. 100:2174.

Cleary M., Nguyen D., Marčiulynienė D., Berlin A., Vasaitis R., Stenlid J. 2016. Friend or foe? Biological and ecological traits of the European ash dieback pathogen Hymenoscyphus fraxineus in its native environment. Nature: Scientific Reports. 6, 21895; doi:10-1038/srep21895 (2016).

Nguyen, D., Cleary, M.R., Enderle, R., Stenlid, J. 2016. Analyses of the ash dieback pathogen Hymenoscyphus fraxineus, suggest role of tree species diversity on colonization and population structure differentiation. Forest Pathol 46: 82-84.

40.   Madigan, A., Bełka, M., Taylor, A., Cleary, M., Nguyen, D., Elfstrand, M., Woodward, S. 2015. Does Hymenoscyphus fraxineus infect other hardy members of the Oleaceae? Forest Pathol 45:426-429.

Cleary, M.R., Andersson, P.F., Broberg, A., Elfstrand, M., Daniel, G. and J. Stenlid. 2014. Genotypes of Fraxinus excelsior with different susceptibility to the ash dieback pathogen Hymenoscyphus fraxineus and their response to the phytotoxin viridiol - a metabolomic and microscopic study. Phytochem. 102:115-125.

Wang, L-Y., Zhang, J., Drobyshev, I., Cleary, M.R., and J. Rönnberg. 2014. Incidence and impact of root infection by Heterobasidion spp., and the justification for preventative silvicultural measures on Scots pine trees: A case study in southern Sweden. Forest Ecol Manag. 315:153-159.

Cleary, M.R., Daniel, G., and J. Stenlid. 2013. Light and scanning electron microscopy studies of the early infection stages of Hymenoscyphus fraxineus on Fraxinus excelsior. Plant Pathol. 62:1294-1301.

Vyse, A., Cleary, M. and I. Cameron. 2013. Species selection in the Interior-Cedar-Hemlock zone in the southern Interior of British Columbia. Forestry Chron. 89:382-391.

Cleary, M.R., Arhipova, N., Gaitnieks, T., Stenlid, J., and R. Vasaitis. 2013. Natural infection of Fraxinus excelsior seeds by Chalara fraxinea. Forest Pathol. 43:83-85.

Cleary, M.R., Arhipova, N., Morrison, D.J., Thomsen, I.M., Sturrock, R, Vasaitis, R., Gaitnieks, T., and J. Stenlid. 2013. Stump removal to control root disease in Canada and Scandinavia: A synthesis of results from long-term trials. Forest Ecol Manag. 290:5-14.

Rönnberg, J., Berglund, M., Johansson, U., and M. Cleary. 2013. Incidence of Heterobasidion spp. following different thinning practices in Norway spruce. Forest Ecol Manag. 289:409-415.

Andersson, P.F., Bengtsson, S., Cleary, M.R., Stenlid, J., and A. Broberg. 2012. Viridin-like steroids from Hymenoscyphus fraxineus. Phytochem. 86:195-200.

Cleary, M.R., van der Kamp, B.J. and D.J. Morrison. 2012. Pathogenicity and virulence of Armillaria sinapina and host response to infection in Douglas-fir, western hemlock, and western redcedar in the southern interior of British Columbia. Forest Pathol. 42:481-491.

Cleary, M., van der Kamp, B.J., and D.J. Morrison. 2012. Effects of wounding and fungal infection with Armillaria ostoyae in three conifer species. I. Host response to abiotic wounding in non-infected roots.  Forest Pathol. 42:100-108.

Cleary, M., van der Kamp, B.J., and D.J. Morrison. 2012. Effects of wounding and fungal infection with Armillaria ostoyae in three conifer species. II. Host response to the pathogen.  Forest Pathol. 42:109-123.

Rönnberg, J. and M. Cleary. 2012. Presence of Heterobasidion infections in Norway spruce stumps six years after treatment with Phlebiopsis gigantea. Forest Pathol. 42:144-149.

Redhead, S.A., Bérubé, J, Cleary, M.R., Holdenrieder, O., Hunt, R.S., Korhonen, K., Marxmüller, H., and D.J. Morrison. 2011. (2033) Proposal to conserve Armillariella ostoyae (Armillaria ostoyae) against Agaricus obscurus, Agaricus occultans, and Armillaria solidipes (Basidiomycota). Taxon. 60:1770-1771.

Cleary, M. and T. Holmes. 2011. Traumatic resin duct formation in the phloem of western red cedar (Thuja plicata) following abiotic wounding and infection by Armillaria ostoyae. IAWA. 32:351-359.

Cleary, M., Sturrock, R. and J. Hodge. 2011. British Columbia’s southern interior forests: Phellinus root disease stand establishment decision aid. BC JEM. 12:17-20.

Zeglen, S., Hunt, R. and M. Cleary. 2009. British Columbia’s forests: White Pine Blister Rust Forest Health Stand Establishment Decision Aid. BC JEM. 10:97–100. 

Cleary, M., van der Kamp, B.J. and D.J. Morrison. 2008. British Columbia’s southern interior forests: Armillaria root disease stand establishment decision aid. BC JEM. 9:60–65.


Roques, A., Cleary, M. Matsiakh, I., Eschen, R. 2017. Field guide for the identification of damage on woody sentinel plants. CAB International. 292 pp.