Submitted to: Plant Health Progress
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/22/2016
Publication Date: 6/7/2016
Publication URL: http://handle.nal.usda.gov/10113/63012
Citation: Wiseman, M., Dugan, F.M., Xiao, C. 2016. Potential hosts for Lambertella corni-maris and Phacidium lacerum within the family Rosaceae. Plant Health Progress. 17:128-129.
Interpretive Summary: Two fungi have been recently described as pathogens of apple and pear fruit in the Pacific Northwest USA. Little is known of these fungi with regard to their ecology and host range. We used artificial inoculations to commercial pear, plus a variety of crabapple and an endemic species of rose to test the abilities of these fungi to infect hosts in the family Rosaceae. All plants challenged in these artificial inoculations proved to be hosts. These results suggest a wide host range in the rose family for these fungi.
Technical Abstract: Two fungi were described in 2015 and 2016 as pathogens of pome fruit in the Pacific Northwest USA: Lambertella corni-maris on apple (Malus domestica), and Phacidium lacerum (synonym, Ceuthospora pinastri) on apple and d’Anjou pear (Pyrus communis). We documented pathogenicity of L. corni-maris to d’Anjou pear, Malus ‘Profusion’ crabapple, and Rosa eglanteria (sweetbriar rose), and pathogenicity of P. lacerum to 'Profusion' crabapple and sweetbriar rose with artificial inoculations.