The plant pathogenic fungus, Fusarium circinatum, is the cause of a major epidemic of pitch canker in urban forests of Monterey pine (Pinus radiata) in California. This pathogen is now also well established in all three mainland, native populations of Monterey pine where it causes conspicuous branch die-back and, frequently in association with native bark beetles, increased tree mortality. In t...

Pseudomonas syringae pv. actinidiae (Psa) causes bacterial canker disease in kiwifruit. Antibacterial activity of plant essential oils (PEOs) originating from 49 plant species were tested against Psa by a vapor diffusion and a liquid culture assays. The five PEOs from Pimenta racemosa, P. dioica, Melaleuca linariifolia, M. cajuputii, and Cinnamomum cassia efficiently inhibited Psa growth by eit...

samples of leaf, twig and fruit from ‘mexican’ lime (citrus aurantifolia) and grapefruit (citrus paradisi) with symptoms of bacterial canker were collected from different provinces throughout iran during spring and summers of 2010 and 2011. yellow, gram-negative colonies were isolated from infected tissue samples. results of pathogenicity assays indicated that some isolates incited tissue hyper...

Neonectria ditissima is the causal agent of apple canker. Here, we present the draft genome sequences of two isolates of N. ditissima that differ in virulence. Comparative genomics will enable pathogenicity determinants to be identified in this plant-pathogenic fungus.