• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
Brown-Spots-on-Leaves-of-Cucumber-Plant---THUMB.jpg

Brown Spots on Leaves of Cucumber Plant

I am growing cucumbers in a container this summer. The leaves suddenly developed brown spots. The plant is still producing cucumbers.

Anthracnose or one of the other fungal leaf spot diseases can cause the damage you described. Prevent these diseases by growing cucumbers, melons and other vine crops in full sun with good air circulation. Growing vine crops, even those in containers, on trellises will help increase air circulation and decrease disease problems. Avoid overhead watering whenever possible. Fungicides can be used to reduce the spread of this disease. Apply a fungicide labeled for use on vegetables as soon as the disease appears. You will need to repeat these sprays every 10 to 14 days during wet weather. Read and follow label directions carefully. Fall sanitation will help reduce the source of disease for next season.

Related

Upcoming Appearances


Sept. 25, 2021
Green Bay Botanic Garden
25th Birthday Celebration

in-person

Sept. 30, 2021
Shade Gardening for Beauty and Pollinator Appeal 
Webinar

Oct. 9, 2021
Everything Hydrangeas
@ Sanger House Gardens

in-person

Oct. 15-17, 2021
NARI Milwaukee Home &
Remodeling Show

in-person

Oct. 20, 2021
Kid & Pet Friendly Houseplants
Webinar

Oct. 23, 2021
San Diego Fall Home & Garden Show
Del Mar, CA

Oct. 27, 2021
Pruning Tips for Shrubs
Webinar

Register today! Plus, watch Melinda's past webinars ON DEMAND
for a limited time.

Learn More

Book an Appearance

Learn More

Enter to win a $150
Corona Tools Gift Card

ENTER NOW