We can be reached at 1-800-888-1447 or email us by submitting a ticket.

Our customer service team is now open at the below hours:

Monday to Friday 9:00AM EST to 5:00PM EST

Go to Burpee Submit a ticket My Tickets Log in
Open navigation

Why do my tomatoes have a sunken spot on the side?

Most likely it is a fungal disease called Anthracnose. It is hard to control because the spores splash up when the tomatoes are small and green. The spores do not grow until the fruit starts to ripen. The symptoms start as small sunken circular spots that can expand as the fruit ripens.

Since the spores are on the fruit before you see the damage, a fungicide would not stop the spread of the disease. If you are going to treat ask your county extension service for a recommendation. You will have to treat the plants as the fruit is set.


Tips to avoid Anthracnose

  • Make sure your soil is well drained
  • Keeping plants staked or cage to prevent them from resting on the ground.
  • Rotate you crops
  • Avoid getting the plant wet when you water
  • A mulch like straw can help prevent the spores from splashing up
  • Remove all garden debris at the end of the season

Did you find it helpful? Yes No

Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.