Potato Late Blight: Complete Treatment Guide

Potato Late Blight

What is Potato Late Blight?

Symptoms

  • Dark brown lesions
  • White fungal growth
  • Stem lesions
  • Tuber decay
  • Rapid spread
  • Plant collapse

What Causes Potato Late Blight?

  • Phytophthora infestans
  • Cool temperatures
  • High humidity
  • Wet conditions
  • Poor air flow
  • Infected seed

How to Treat Potato Late Blight

Organic Treatments

  • Copper fungicide
  • Remove infected plants
  • Improve airflow
  • Clean cultivation
  • Disease-free seed
  • Proper spacing

Chemical Treatments

  • Systemic fungicide
  • Preventive sprays
  • Contact fungicides
  • Regular treatment

Cultural Controls

  • Plant spacing
  • Good drainage
  • Air circulation
  • Clean seed
  • Field sanitation
  • Weather monitoring

How to Prevent Potato Late Blight

  • Resistant varieties
  • Clean seed
  • Proper spacing
  • Good drainage
  • Regular inspection
  • Weather monitoring

Recommended Fertilizers for Potato Late Blight