2016 Fungicide Spray Guide for Tomato in North Carolina

— Written By

There are several foliar diseases of tomato in North Carolina that predictably occur each growing season, including bacterial leaf spot, early blight, and late blight. As a result, the nature of commercial tomato production in western North Carolina requires regular fungicide applications, yet there is no single product that provides effective control of all the foliar diseases of tomato. Additionally, the majority of the products are protective rather than systemic and; therefore, require application before disease appears. As the number of active ingredients increases and the restrictions on application timings and amounts varies across products, the chance of error and confusion in developing a program increases. The Tomato Spray Guide, developed from many years of research at North Carolina State University, is designed to provide a spray schedule that limits applications, yet maintains healthy plants and incorporates rotation of active ingredients for fungicide resistance management.

This program was originally initiated by Dr. Paul Shoemaker and further developed by Dr. Kelly Ivors; both are former Vegetable Pathologists at the Mountain Horticultural Crops Research & Extension Center in Mills River, NC.

2016 NCSU Fungicide Spray Guide for Tomato in North Carolina