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Lettuce Aster Yellows

Head twisting from aster yellows infection on lettuce

Aster yellows is a disease caused by Aster yellows phytoplasma[1] affecting several genera of herbaceous plants, primarily in the Aster family.

SymptomsEdit

It can cause phyllody, yellowing, stunting, loss of pigmentation in or sterility of flowers, and necrosis.

TreatmentEdit

No treatment is available to save a plant infected with aster yellows. It is best managed by removing infected plants from the garden to minimize spread.[2]

PreventionEdit

Management of the insect vector is not usually feasible in a home garden.[2]

ExamplesEdit

ReferencesEdit

  1. Bai et al. Living with genome instability: the adaptation of phytoplasmas to diverse environments of their insect and plant hosts. J. Bacteriol. 2006 May;188(10):3682-96.
  2. a b Engelbrecht, C . (2006). Aster Yellows. Horticulture & Home Pest News. p103-104. IC-495(22).
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