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David B. Langston's Images

Title: Associate Professor
Organization: University of Georgia
Unit: Plant Pathology
Country: United States
Remove Filters: Pseudomonadales(X)
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Image Subject Name Scientific Name Description
5077009 bacterial brown spot of bean/canker of stone fruit, twig blight Pseudomonas syringae pv. syringae Tan, irregular angular spots. Spots may drop out leaving a shot hole appearance. Pseudomonas is worse during cool weather.
5076071 bacterial leaf streak and bulb rot Pseudomonas viridiflava Symptoms appear as water-soaked, dark green areas at the base of the onion leaves. Affected leaves tear off without much force. Disease occurs more during cool, wet periods during onion production.

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