Research Publication 2021

Avenot, H. F., Baudoin, A., and Hong, C. X. 2021. Conidial production and viability of Calonectria pseudonaviculata on infected boxwood leaves as affected by temperature, wetness and dryness periods. Plant Pathology published online at
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J. A. LaMondia, E. Allan-Perkins, S. Kodati; Factors affecting boxwood blight spread under landscape conditions. Journal of Environmental Horticulture, September 2021; 39 (3): 100–107. doi:
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Kong, P.; Sharifi, M.; Bordas, A.; Hong, C. Differential Tolerance to Calonectria pseudonaviculata of English Boxwood Plants Associated with the Complexity of Culturable Fungal and Bacterial Endophyte Communities.
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Bika R, Copes W, and Baysal-Gurel F. 2021. Comparative performance of sanitizers in managing plant-to-plant transfer and postharvest infection of Calonectria pseudonaviculata and Pseudonectria foliicola on boxwood. Plant Disease. https://doi.org/10.1094/ PDIS-03-21-0481-RE

Castroagudín VL, Shishkoff N, Stanley O, Whitesell R, Olson T, and Crouch JA. 2021. First report: Co-infection of Sarcococca hookeriana (sweetbox) by Coccinonectria pachysandricola and Calonectria pseudonaviculata causes a foliar disease of sweetbox in Pennsylvania. Plant Disease https://doi.org/10.1094/PDIS-1006-1020-1198-PDN

LeBlanc N, Cubeta MA, and Crouch JA. 2021. Population genomics trace clonal diversification and intercontinental migration of an emerging fungal pathogen of boxwood. Phytopathology 111:184-193. https://doi.org/10.1094/phyto-06-20-0219-fi

Shishkoff N, Miller ME, and Cubeta MA. 2021. Rooting response of boxwood cultivars to hot water treatment and thermal sensitivity of Calonectria henricotiae and C. pseudonaviculata in diseased boxwood (Buxus spp.). Journal of Environmental Horticulture 39:1-10. https://doi.org/10.24266/0738-2898-39.1.1

Yang X, McMahon MB, Ramachandran SR, Garrett WM, LeBlanc N, Crouch JA, Shishkoff N, and Luster DG. 2021. Comparative analysis of extracellular proteomes reveals putative effectors of the boxwood blight pathogens, Calonectria henricotiae and C. pseudonaviculata. Bioscience Reports 41(3):BSR20203544. https://doi.org/10.1042/BSR20203544

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Prospecting for Biocontrols

By Dr. Kong • March 14, 2025

It is neither economically sustainable nor environmentally acceptable to make multiple fungicide applications to protect boxwood, a key nursery crop and iconic landscape plant, from boxwood blight.

Tiny but Mighty: Unlocking the Microbiome Potential to Enhance Boxwood Resistance to Diseases and Environmental Stress

By Dr. Xiaoping Li • July 25, 2024

Boxwood Blight Insight Group (BBIG): Sanitation and Nursery Practices

By Dr. Fulya Baysal-Gurel • May 30, 2024

This educational session aims to equip nursery producers, gardeners, and plant health professionals with vital knowledge and strategies to combat the pervasive threat of Calonectria pseudonaviculata, the fungus responsible for the devastating boxwood blight. Boxwood blight, a serious concern for the horticulture industry, jeopardizes the health and viability of boxwood plants, significantly impacting the ornamental plant market. Addressing this issue, the webinar will delve into the critical control points in nursery production, emphasizing effective sanitation practices to prevent and manage the spread of this disease. Attendees of the webinar can expect to gain: An understanding of the lifecycle and spread of Calonectria pseudonaviculata. Insight into the latest research and developments in boxwood blight control. Practical guidance on implementing effective sanitation and preventive measures in nursery production. Strategies for identifying critical control points to mitigate the risk of boxwood blight in their operations. This webinar is essential for anyone involved in the cultivation, care, or management of boxwood

In the Lab and the Landscape at the National Arboretum: Boxwood Genomics and AI Solutions for Blight Detection and Protection

By Dr. Fred Gouker • January 31, 2024

The Boxwood Blight Insight Group (BBIG) invites horticulturists, researchers, and plant enthusiasts to join an insightful webinar titled, "In the Lab and the Landscape at the National Arboretum: Boxwood Genomics and AI Solutions for Blight Detection and Protection." This webinar will offer an exploration of the latest boxwood research from the National Arboretum, with a focus on the intersection of boxwood breeding, genomics, and machine learning. Webinar Highlights: Cutting-edge Genomics Research: Learn about the latest developments in boxwood genomics and breeding strategies aimed at identifying genetic resistance to boxwood blight. Gain insights into current methodologies and breakthroughs at the National Arboretum. AI Solutions for Blight Detection: Discover how artificial intelligence (AI) is enhancing the detection and protection of boxwood in both laboratory settings and natural landscapes. The seminar will showcase innovative AI methods for recognizing and combatting boxwood blight, presenting a glimpse into the future of plant disease management. Engaging Presentation: Attendees will have the opportunity to ask questions fostering a collaborative environment for learning and idea exchange.