Broccoli Black Rot: Complete Treatment Guide

Broccoli Black Rot

What is Broccoli Black Rot?

Symptoms

  • V-shaped yellow leaf margins
  • Blackened leaf veins
  • Wilting leaves
  • Stunted growth
  • Dark stem discoloration

What Causes Broccoli Black Rot?

  • Bacterial infection (Xanthomonas)
  • Warm, humid conditions
  • Overhead irrigation
  • Infected seeds
  • Poor air circulation

How to Treat Broccoli Black Rot

Organic Treatments

  • Copper-based sprays
  • Hot water seed treatment
  • Biological controls
  • Plant extracts

Chemical Treatments

Cultural Controls

  • Remove infected plants
  • Improve air circulation
  • Avoid overhead watering
  • Practice crop rotation
  • Use disease-free seeds

How to Prevent Broccoli Black Rot

  • Clean seed sources
  • Proper plant spacing
  • Good drainage
  • Sanitation practices
  • Resistant varieties

Recommended Fertilizers for Broccoli Black Rot

  • Balanced nutrition
  • Calcium supplements
  • Plant strengtheners
  • Growth promoters