Garden
by Willowbottom

More

Favorites
Templates
Calendar
Seed Starting Calculator
Soil Calculator
Learn
Identify Pest or Disease
Ask Garden
Account Settings

Text Size

Disease

Bacterial Leaf Spot

A bacterial disease causing angular water-soaked spots on leaves bounded by leaf veins, which turn brown and may fall out leaving ragged holes.

Bacterial Leaf Spot

Symptoms to Look For

  • Angular water-soaked spots on leaves, turning brown with yellow halos
  • Spots falling out leaving tattered holes in the leaf
  • Lesions on stems and fruit surfaces in wet conditions

Affected Plants

PepperTomatoCucumberLettuceBrassicaBeanBeetroot

Organic Solutions

Copper-based spray

Apply copper hydroxide or copper oxychloride spray as a protectant during wet weather, coating all leaf surfaces before symptoms appear.

Remove infected leaves

Pick off and destroy spotted leaves as soon as they appear to slow the spread of bacteria through splashing water.

Prevention

  • Avoid overhead irrigation and water early in the day so foliage dries quickly
  • Use certified disease-free seed and resistant varieties where available
  • Rotate susceptible crops with non-hosts for at least 2 years between plantings

Garden, by Willowbottom recommends only organic, wildlife-friendly solutions. No synthetic pesticides, no harmful chemicals - ever.

Bacterial Leaf Spot | Garden by Willowbottom