Rust

This disease attacks roses and lawns. The yellow and orange colored formations are favored by moisture. The disease will not spread from one host to another (e.g., roses to grass); it is host specific.

Prevention/Management

• Mow lawns regularly - winter cleanup of plant debris helps.
• Maintain adequate fertility - faster growing plants are more resistant.

Controls

• More toxic: for roses ­ Funginex® and others.
• Less toxic:

- roses: sulphur

- see prevention/management

Powdery Mildew

Mildew appears as a white or gray coating on leaves and flower buds of roses and shrubs.

Prevention/Management

• Increase air movement and exposure to sun.

Controls

• More toxic: Funginex® and others.
• Less toxic:

- sulphur (used as a preventative)

- baking soda and water