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Tomato Plants Dying Bottom-Up: Widespread 2009 Issue

Many regions reported "bottom-up" tomato dieback in 2009 due to erratic rainfall. Tops stay green; lower leaves brown and drop.

Likely Causes

  • Root stress from water fluctuations.
  • Early blight or Septoria progressing upward.
  • Nutrient leaching.

Management

  • Mulch heavily.
  • Remove affected leaves.
  • Fungicide (copper/neem) if fungal.
  • Consistent deep watering.

Often weather-driven; plants may outgrow it.

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