December 4, 2025Plant Disease

First Report of Leaf Spot of Small-leaved Boxwood Caused by Pseudonectria foliicola in China

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Observation of pathogenicity causing leaf spot disease in small-leaved boxwood, indicating significant economic impacts.

Only plants inoculated with Pseudonectria foliicola showed symptoms of leaf spot disease after 7 days.
The phylogenetic tree constructed using MEGA 11 confirmed the classification of the isolates as P. foliicola.
A negative control group treated with sterilized distilled water showed no symptoms, confirming P. foliicola's role as the pathogen.
The findings underscore the importance of monitoring boxwood health to prevent economic losses in the ornamental industry.

Zhu et al. (2025) studied this question.

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