Goliath Hybrid Tomato

This is often early blight or late blight on tomatoes—late blight is especially concerning because it can cause fast-spreading leaf lesions with grayish, fuzzy growth in humid weather. Remove and bag infected leaves, avoid overhead watering, and water at the base in the morning; improve airflow by spacing plants and pruning lower leaves touching soil. If problems persist, use a labeled tomato fungicide and follow the product’s interval schedule, starting at the first signs during wet or humid spells.

Harvest when fruits are fully colored for your variety (typically fully red with little to no green at the shoulder) and the fruit is slightly soft when gently squeezed near the stem. Mature tomatoes should have a strong tomato aroma and will pull easily without tearing when you lift and twist lightly. For best flavor, don’t wait until they’re fully mushy—pick in dry weather and leave them at room temperature to finish ripening if needed.