EPPO Global Database

Phytophthora abietivora(PHYTAB)

Distribution details in United States of America

Situation
Current pest situation evaluated by EPPO on the basis of information dated 2025: Present, restricted distribution
First recorded in: 1989
Comments
EPPO Reporting Service (2020/137) : identified to cause root rots leading to death of A. fraseri trees

EPPO Reporting Service (2025/269) : identified on 10 native broadleaf plants throughout Pennsylvania between 2018 to 2020. Historical studies suggest presence since 1989.
References
* Bily D, Nikolaeva E, Olson T, Kang S (2022) Phytophthora spp. associated with Appalachian oak forests and waterways in Pennsylvania, with P. abietivora as a pathogen of five native woody plant species. Plant Disease 106(4), 1143-1156 https://doi.org/10.1094/PDIS-05-21-0976-RE

* Li D-W, Schultes NP, LaMondia JA, Cowles RS (2019) Phytophthora abietivora, a new species isolated from diseased Christmas trees in Connecticut, USA. Plant Disease 103(12), 3057-3064. https://doi.org/10.1094/PDIS-03-19-0583-RE

* Molnar C, Nikolaeva E, Kim S, Olson T, Bily D, Kim JE, Kang S (2020) Phytophthora diversity in Pennsylvania nurseries and greenhouses inferred from clinical samples collected over four decades. Microorganisms 8(7), 1056 https://doi.org/10.3390/microorganisms8071056
Situation in neighbouring countries
Country State Status
Canada Québec Present, restricted distribution view...
Canada Present, restricted distribution view...