Powdery mildew is a fungal infection that is not fatal butcan make your outdoor plants looksick and dull. It causes white to grey powdery spots on the surface of the leaves.
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Rust
One of the most common diseasesin outdoor plants like rose plants, Fuchsia, chrysanthemum, or pelargonium, rust is a serious infection that can spread to other plants and kill them over time.
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Black spot
Black spot is a fungal disease thatis usually caused by a particular species of Pseudomonas bacteria.It mainly attacks rose plants, and other garden and decorative plants.
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Clubroot
Usually affecting brassicas rootslike cauliflower, cabbage, Brussels sprouts, turnips, etc., clubroot isa fungal infection that causes the roots to become twisted and swollen.
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Leaf spots
Leaf spots are common fungal infections in plants that cause the leaves to turn yellow and make them fall prematurely. These spots are usually brown, tan, or black in color.