Ozone will cause chlorosis and upper surface scorching on the older leaves, which leads to defoliation. Sugar Baby is one of the more sensitive varieties. Use a long rotation of at least 5 years. Use resistant varieties when possible. Commercially available seedless varieties do not possess resistance to Fusariuin wilt and should only be planted in fields rotated out of cucurbits for 5 years or longer.
Excellent resistance is available in some varieties.
Use resistant varieties when possible. Begin fungicide applications when vines run or earlier if symptoms are detected. Alternate chlorothalonil with Quadris every 7 days. This is especially important to delay the development of resistant strains of the pathogen to Quadris. Begin sprays when vines run.