Morphological and molecular identification of Diaporthe eres, causing foliar blight on Chrysanthemum morifolium in Egypt: Integrated assessment of pathogen characterization, host genetic diversity and fungicide efficacy
This study identifies *Diaporthe eres* as a newly confirmed, highly virulent pathogen causing foliar blight on Egyptian chrysanthemums, characterizes its genetic diversity and fungicide resistance patterns, and recommends an integrated management strategy prioritizing Difinoconazole while phasing out ineffective chemicals to prevent further resistance development.