Agrobacterium vitis, the primary cause of grape crown gall disease, is known to survive internally in grapevines and to spread in propagation material. In this study, we showed that the bacterium can be detected in dormant grape buds and on surfaces of leaves collected from commercial vineyards....

Biological invasions are governed by spatial processes that tend to be distributed in non-random ways across landscapes. Characterizing the spatial and temporal heterogeneities of the introduction, establishment, and spread of non-native insect species is a key aspect of effectively managing their...

The research areas were located in the Pisz Forest District, northeast Poland, in 10-year-old Scots pine (Pinus sylvestris L.) plantations, established in 2004 on a clear-cut area. Reforestation was performed without a biological treatment against root pathogens, despite the presence of ...

In the late summer of 2015, severe leaf blight occurred on Miscanthus sinensis grown on natural riverside lands of the Han River in Seoul, South Korea. Symptoms included chlorosis and necrotic lesions on the leaves. Gram-negative, non-spore-forming, and rod-shaped Pseudomonas syringae were...

Plant cell walls undergo dynamic structural and chemical changes during plant development and growth. Floral organ abscission and lateral root emergence are both accompanied by cell-wall remodeling, which involves the INFLORESCENCE DEFICIENT IN ABSCISSION (IDA)-derived peptide and its receptors,...

X. citri pv. mangiferaeindicae [X. axonopodis pv. mangiferaeindicae], causal agent of bacterial canker (or bacterial black spot), is a major pathogen of mango. Mango leaves showing typical symptoms of bacterial canker were first observed in August 2015 in 5 regions of Togo (Savanes, Kara, Centrale, ...

In April 2010, unusual symptoms were observed in Iberian wild pear (Pyrus bourgaeana) trees near the National Park of Cabañeros, Ciudad Real Province, Spain. The symptoms were similar to those of fire blight reported from other hosts, and included blossom necrosis, leaf and shoot blight, fruit...

In the autumn of 2015, grapevine (Vitis vinifera) plants exhibiting symptoms of leaf discoloration (yellowing), veinal necrosis, and in some cases fruit shriveling, were observed in a vineyard located in Piura, northwestern Peru. Since the symptoms were indicative of possible grapevine yellows...

Potato common scab (PCS) is caused by phylogenetically diverse Streptomyces spp. To identify new pathogens, potato tubers (Solanum tuberosum cv. Favorita) with scab symptoms were collected from fields in Hebei Province (China) in November 2014. An isolate was obtained by transferring single...

Pseudomonas syringae was reported in Argentina, Sardinia, Azerbaijan, and Australia where it causes extensive yield losses in grapevine (Vitis vinifera), up to 60% in certain cases. The symptoms include leaf spots, necrotic lesions on leaf blades and shoots, and loss of inflorescences early in the...