Preventing Plant Diseases

Even though healthy plants resist problems better than weak ones grown in poor conditions, they're not immune to diseases. Here's a quick guide to the symptoms, and the best solutions.

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Leaf with Rust Disease
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DK - Simple Steps to Success: Containers for Patios © 2007 Dorling Kindersley Limited

Rust

Small bright orange or dark brown blistering on the leaf or stems, with affected areas withering and possibly dying, caused by fungi in damp conditions. Rarely a major problem; remove affected areas and spray with an appropriate fungicide.

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