Evaluation of Compost Tea Application to Control Foliar Diseases in an Heirloom Tomato Crop

Project Overview

Project Type: Farmer/Rancher
Funds awarded in 2006: $9,720.00
Projected End Date: 12/31/2008
Region: Southern
State: Georgia
Principal Investigator:
Daniel Parson
Gaia Gardens


  • Vegetables: tomatoes


  • Crop Production: application rate management
  • Pest Management: field monitoring/scouting


    Foliar disease is a major problem in heirloom tomato production, so we set out to determine if aerated compost teas could be part of the solution. We planted blocks of Cherokee Purple tomatoes and applied two types of tea and water to sections within each block. The teas were applied each week and samples were taken of the tea, treated leaves, and foliar disease. We found that the compost tea did not have an effect on crop yield or timing of disease onset. This method of disease prevention may work if growing conditions are better, but doesn’t work in the humid South for susceptible varieties.

    Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.