Answer: I'm afraid you've heard about yet another homemade solution to fungal diseases in plants. According to university studies, aspirin has no effect against the pathogens that cause diseases in plants. You'll have much better results with good cultural practices; give your tomato plants full sunshine, water the soil rather than the foliage, space your plants so they have good air circulation all around, keep weeds pulled, and water and feed as required. Best wishes with your tomatoes!
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