Tomato (Solanum lycopersicum L.)

Bacterial wilt (Ralstonia solanacearum)

Symptoms

  • Sudden wilting of leaves followed by yellowing, vascular discoloration, stunting, downward curling and excessive production of adventitious roots on stem.
  • While Infected plant parts are cut and immersed in clear water, a white streak of bacterial ooze are seen coming out from cut ends

Management

  • Use resistant varieties like sakthi, mukthi, anagha, manulekshmi, manupriya, akshaya
  • Apply lime in the field
  • Ensure drainage in the field
  • Remove disease infected seedlings
  • Select seeds from disease free seedlings
  • Drench with Pseudomonas fluoroscens
  • Application of neemcake 25 gram per pit
  • Use grafted seedlings for planting
  • Seedling dipping in streptocycline (0.5 g/L water) before planting is highly effective.
  • Seed treatment, seedling dipping, and soil drenching with Pseudomonas fluorescens (20 g/L water) help in disease control.