Seed health testing, using the blotter method, revealed some fungal growth on seed surface of one accession Indian trumpet flower/Broken bones tree (Oroxylum indicum (L.) Kurz) collected from Kokrajhar, Assam, India. The fungus was identified as Diaporthe phaseolorum (Cooke & Ellis) Sacc. based morphological characters. Later, identity re-confirmed by DNA sequencing ITS gene (NCBI Sequence ...

B and Phomopsis/Diaporthe (P/D) spp. are fungal pathogens known to cause cankers on a variety of woody hosts such as avocado, grapevine, almond, citrus, cherry, plum, mango, and coast live oak. On avocado (Persea americana Mill.), the disease came to be known as Dothiorella canker because the pathogen most often isolated at the time was known as Dothiorella gregaria (2). However, new research h...

The objectives of the current study were to isolate and identify the pathogen responsible for citrus canker and investigate the efficacy of sulfone derivatives containing 1,3,4-oxadiazole moiety on controlling citrus canker caused by Xanthomonas citri subsp. citri (Xcc) under in vitro and field conditions. In an in vitro study, we tested eight sulfone derivatives against Xcc and the results dem...

ABSTRACT Citrus bacterial canker disease has been introduced at least three times into Florida in the last 15 years and, despite federal and state quarantine and eradication efforts, continues to spread in Florida. Accurate, fast, and reliable detection of the causal agent is of great importance. However, citrus bacterial canker is caused by at least two groups of phylogenetically distinct Xant...

Belanger, R. R., Falk, S. P., Manion, P. D., and Griffin, D. H. 1989. Tissue culture and leaf spot bioassays as variables in regression models explaining Hypoxylon mammatum incidence on Populus tremuloides clones in the field. Phytopathology 79:318-321. Regression models were used to interpret the relationships among H. mammatum. High positive correlations among bioassays, with various sensitiv...