There are more than 5,000 known species of rust on plants. It is most often found on mature plants

There are more than 5,000 known species of rust on plants. It is most often found on mature plants where symptoms appear primarily on the surfaces of lower leaves. Early on, look for white, slightly raised spots on the undersides of leaves and on the stems. After a short period of time, these spots become covered with rust-colored spore masses. Later, leaf postules may turn yellow-green and eventually black. Severe infestations will deform and yellow leaves and cause leaf drop. Rust diseases are favored by 4 to 8 hours of low light intensity, warm temperatures and moisture, followed by 8 to 16 hours of high light intensity, high temperatures and slow drying of leaf surfaces. The spores are spread by wind or by water splashing back up onto the foliage.

How to control Rust

Wettable Sulphur

Wettable Sulphur is a preventative fungicide and miticide and is for the control of certain fungal diseases in grape vines, pome… Read More

Rose Spray RTU controls various insects and fungal diseases on roses and ornamentals. It is formulated for the systemic control of… Read More

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