Of Stone Fruit Bacterial Pathogens - Cost 873
Of Stone Fruit Bacterial Pathogens - Cost 873
Of Stone Fruit Bacterial Pathogens - Cost 873
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Brenneria (Erwinia) rubrifaciens - Deep bark canker ofwalnut.• Reported from USA 1967.• On trees older than 15 years, symptoms similarto bleeding of horse-chestnut caused by aP.syringae type bacterium.• Dark brown to black streaks along the innerbark and outer sapwood of trunks and mainbranches.• Mechanical harvesters are the maintransmitters, where there is no mechanicalharvesting disease not important• Spreading by budwood is also possible• Birds feeding on sap are suspected, but thebacterium could not be isolated from them
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