Blossom-End Rot on Large Tomato Plant: Rain-Induced Calcium Lockout

Heavy rain saturates soil, roots can't uptake calcium → bottom rot. Symptoms fade as plant matures and rain lessens.

Remedies

Plant will outgrow it; future fruit unaffected.

Growing Vegetables: Shriveled, Brown Tomato Leaves: Root Stress, Not Disease; Tomato Hornworms: Large but Harmless Caterpillars; Rescuing Overcrowded Container Tomato Seedlings; Potato Plants Producing Tomato-Like Fruit: Solanaceae Surprise; Fixing Blossom-End Rot on Tomatoes: Causes and Solutions; Growing Better Tomatoes: Soil Prep, pH, and Raised Beds; Spotted, Slow-Ripening Tomatoes? Weather or Disease—Here's How to Tell; Diagnosing Tomato Stem Disorders and Fusarium Wilt; Tomato Stem Rot in Coastal Climates: Blight and Drainage Solutions; Growing Tomatoes: America's Favorite Garden Vegetable

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