Symptoms on Sweet Potato 

• Organs attacked  :

• Symptoms :
  • Plant growth rather slow, with an upright habit and many small stems (figure 1).
  • Smaller, chlorotic and slightly rolled leaves (Figures 2 and 3).
  • Roots of reduced size.

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• Signs  : no visible signs, confirm the possible presence of vectors.
• Possible confusion : herbicidal phytotoxicity, nutritional disorder, asphyxiation, etc.

• Production areas affected :

• Phytoplasmas reported on sweet potato :
  • Candidatus Phytoplasma aurantifolia (16SrII-B)