Rose & Ornamental Pest & Disease Control

Choosing pest and disease treatments for roses and ornamentals

Start by identifying the pest or disease affecting your plant. Insecticides treat listed insect pests, while fungicides treat listed fungal diseases. Combination products can address both, but the plants and problems covered differ between products.

Rose sprays are a convenient option for many garden treatments. Granular insecticides offer another application method for certain pests and plants. Choose according to the product’s labelled uses, rather than its format alone.

Which treatment should I choose for roses?

Choose a product that lists roses and the specific pest or disease you want to treat. An insecticide for aphids or scale may not treat black spot or powdery mildew. If you need both insect and disease control, check whether a combination treatment covers both problems.

Should I choose a spray or a granular insecticide?

The right choice depends on the pest, plant and product directions. Sprays and granules can differ in how they are applied and how they work. Check where to apply the treatment, which pests it controls and any restrictions on use. Granular insecticides are not substitutes for fungicides when treating fungal diseases.

Are ready-to-use sprays or concentrates better?

Ready-to-use sprays are convenient for smaller jobs and require no dilution unless the label states otherwise. Concentrates may suit larger gardens or repeated applications. Compare the amount of diluted spray each concentrate makes at the required label rate, rather than bottle size alone.

Can rose treatments be used on other ornamental plants?

Some products are labelled for both roses and other ornamental plants. Check the individual product’s directions and plant exclusions before use. A treatment suitable for roses is not automatically suitable for every flowering plant, shrub or indoor plant.

How often should I treat my roses?

Follow the application interval on the selected product’s label. Timing depends on the treatment and the problem being addressed. Check weather restrictions, plant sensitivity warnings and instructions about using the product alongside other garden treatments.

Where can I find other plant protection products?

Browse our Insecticides for insect treatments or our Fungicides for disease-control products. For oil-based garden treatments, explore White Oil & Pest Oil.

Disclaimer: Always read and follow the instructions on the product packaging before use, and don't depend on information on this page that may have errors or be outdated.