Cucumber Angular Leaf Spot: Complete Treatment Guide

Cucumber Angular Leaf Spot

What is Cucumber Angular Leaf Spot?

Symptoms

  • Angular, water-soaked spots on leaves
  • Spots turn tan to brown
  • Lesions bounded by leaf veins
  • White bacterial ooze in humid conditions
  • Holes in leaves where spots fall out
  • Extensive defoliation in severe cases

What Causes Cucumber Angular Leaf Spot?

  • Bacterial infection
  • High humidity
  • Overhead watering
  • Splashing water
  • Poor air circulation
  • Infected seeds
  • Plant debris

How to Treat Cucumber Angular Leaf Spot

Organic Treatments

  • Apply copper-based organic fungicide
  • Remove infected leaves
  • Improve air circulation
  • Clean garden tools
  • Practice crop rotation
  • Use disease-free seeds

Chemical Treatments

  • Apply copper hydroxide
  • Use copper oxychloride
  • Apply bactericides
  • Preventive copper sprays

Cultural Controls

  • Water at soil level
  • Space plants properly
  • Remove plant debris
  • Clean tools between plants
  • Rotate crops
  • Avoid working with wet plants

How to Prevent Cucumber Angular Leaf Spot

  • Use disease-free seeds
  • Practice crop rotation
  • Proper plant spacing
  • Avoid overhead irrigation
  • Remove plant debris
  • Maintain good air flow
  • Clean tools regularly

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