Powdery mildew or leaf spots: leaf removal is not recommended as it would cause severe defoliation. Unless very severe, these infections should be tolerated Sudden wilting and collapse of the whole plant can occur, or there can be a slower and more gradual decline The RHS believes that avoiding pests, diseases and weeds by good practice in cultivation methods, cultivar selection, garden hygiene and encouraging or introducing natural enemies, should be the first line of control. If chemical controls are used, they should be used only in a minimal and highly targeted manner. Non-chemical control

The fungicides tebuconazole (Provanto Fungus Fighter Concentrate), tebuconazole with trifloxystrobin (Provanto Fungus Fighter Plus, Toprose Fungus Control & Protect), and triticonazole (Fungus Clear Ultra)are labelled for the control ofrose rust. On evergreen rhododendrons, actual growth of the funguson the lower leaf surface can be hard to detect, but infection tends to cause pale green,reddish-purpleor yellowish patches on the upper surface

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Fungicides are likely to need several applications during the growing season, particularly when spring and summer are wet.

Roses are investment plants for most gardeners, so they need high quality products they can trust. A part of the Phostrogen® family

Usually on azaleas, the leaves become very pale, swollen and distorted, then covered in a bloom of white fungus spores The fungicide tebuconazole with trifloxystrobin (Provanto Fungus Fighter Plus, Toprose Fungus Control & Protect) has a recommendation for the control of leaf spots on ornamental plants. Additionally, the fungicides tebuconazole (Provanto Fungus Fighter Concentrate) and triticonazole (Fungus Clear Ultra) are labelled for the control of other diseases on ornamental plants, and could therefore be used legally on Veronica(at the owner’s risk) to try and control the leaf spotting. Spots appear on petals under wet conditions, which spread rapidly and cause the petals to collapse in a wet, slimy mess