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

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...