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What are the causes and solutions for black spot tomatoes?

Cloyd Tremblay ∙

Lvl 10

∙ 2w ago

Updated: 3/13/2025

Black spot on tomatoes is typically caused by a fungal disease called Alternaria. This disease thrives in warm and humid conditions, so overwatering and poor air circulation can contribute to its spread. To prevent black spot, it is important to water tomatoes at the base, avoid overhead watering, and provide good air circulation by spacing plants properly. Fungicides can also be used as a solution to treat black spot on tomatoes.

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∙ 2w ago

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What causes the presence of black dots on flower leaves?

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How can I successfully grow black cherry tomatoes in containers?

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