Rust

Description

Rust spores need a moist environment in which to prosper. The fungus develops mostly on leaves but also on stems. In appearance they can develop either as patches or as pustules (like septic spots). Normally they range in colour from being orange to dark brown. The colour can change from lighter to darker as the seasons change from spring to late summer and autumn.

Symptoms

None other than the Rust itself although the presence of this fungal infection may indicate an already weakened plant so check for other diseases or infestations.

Treatment and control

General tips

Immediately remove and destroy all infected leaves and plant parts. Collect and destroy any fallen leaves.

Spray with a suitable fungicide

Fungicides with any one of the following active ingredients will enable the effective control of rust (check the instructions to ensure plant suitability before use): RoseClear Concentrate for Bugs and RoseClear 4 Gun!, FungusClear Ultra for Flowering Plants or FungusClear 2 Gun!. Continue spraying at fortnightly intervals throughout the season.

Always read the label. Use pesticides safely.

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