First Report of Brenneria nigrifluens as the Causal Agent of Shallow-Bark Canker on Walnut Trees (Juglans regia) in Serbia

Isolation and Characterization of Brenneria nigrifluens Causing Bacterial Shallow Bark Canker of Walnut Trees in Golestan Province, Iran

Shallow bark canker incited by Brenneria nigrifluens is considered one of the most dangerous diseases which can cause a significant reduction in walnut and timber production.  During spring and summer of 2019, walnut gardens were surveyed for symptoms like leaf spot, fruit, and stem canker from four different regions of Golestan province located in Iran. A set of 11 Gram-negative bacteria were ...

occurrence and distribution of shallow bark canker of walnut trees in northern provinces of iran

in recent years, shallow bark canker of walnut (juglandis regia l.) trees has become fairly widespread in iran. to determine the distribution of the disease in golestan, mazandaran and gilan provinces, from early summer to mid-fall seasons of 2004, more than one hundred bark samples were collected from walnut trees showing symptoms of shallow bark canker. sixty strains of bacteria were isolated...

First Report of Colletotrichum fructicola as the causal agent of Anthracnose on Common Bean and Cowpea

Minireview Bacterial Diseases of Walnut and Hazelnut and Genetic Resources

In 2008, a global production rounding 1,724 and 1,053 million metric tones respectively for walnut and hazelnut has been estimated. Bacterial diseases are threatening these nut crops all over the World. Xhanthomonas arboricola pv. juglandis (Xaj) is the agent of walnut bacteriosis, and has been associated also to brown apical necrosis. Several walnut genotypes have shown a range of tolerance to...

first report of diplodia malorum fuckel the causal agent of canker disease of apple trees in iran*

in summer of 2009, a disease with symptoms such as stem and trunk cankers were seen in apple golden delicious cultivars trees in west azerbaijan orchards. the disease was in progress due to environmental stresses such as drought and frostbite. bark and vascular system of the tree was darkened at the site of infection and cankers were scaling on main trunk and branches. to isolation of the fungi...