Bacterial blight of sugar beet

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Pseudomonas syringae
Bacterial blight of sugar beet
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Scientific Classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gamma Proteobacteria
Order: Pseudomonadales
Family: Pseudomonadaceae
Genus: Pseudomonas
Species: Pseudomonas syringae pv. aptata
Synonyms
Bacterial blight

Bacterial blight of cantaloupe
Bacterial blight of sugar beet

Bacterial leaf spot

Bacterial blight of sugar beet (Pseudomonas syringae pv. aptata) is a commonly occuring disease, but is usually not of economic importance. Some rhizomania-resistant varieties have shown increased susceptibility to P. s. pv. aptata. Symptoms can be easily confused with those of beet cercospora disease.[1] The host range includes Beet, chard, beans, aubergine, spinach, lettuce, and pepper.[2]

Symptoms[edit | edit source]

Leaves show circular to irregular leaf spots, which have a tan centre with a dark margin. Disease also shows on leaf edges. These spots later coalesce causing the leaves to have a ragged appearance.[2]

Control[edit | edit source]

No effective field controls have been developed.[1]

Gallery[edit | edit source]

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Beet  
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Beet  
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Beet  
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Beet  

References[edit | edit source]

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  1. a b Windels, C.E.; Bradley, C.A and Khan, M.F.R. (2003). Comparison of Cercospora and Bacterial Leaf Spots on Sugarbeet. North Dakota State University Agriculture and University Extension. Retrieved: 2011-02-12.
  2. a b Veg Diseases Part 3. Organic Seed Alliance. Retrieved: 2011-02-12.