Managing Rose Rust in Southern California: Funginex & Fertilizer Tips

Linda in SoCal had 95 roses with orange dots on leaf undersides (rust), yellowing leaves, and overcast mornings. Jay's prescription:

Rust Control

• Funginex (triforine) in hose-end sprayer—best for rust.
• Available at big-box stores; follow label exactly.
• Spray in cool evening hours.

Fertilizer Upgrade

• Keep 15-15-15 granular as base.
• Add Miracle-Gro for Roses every 2–3 weeks for a "kick."
• Try Plant Nog (from Rosemania) for foliage/flower color—don't mix with other chemicals for edibles.
• Continue Bayer (contains insecticide) as needed.

Regional note: East Coast gets black spot; West Coast gets rust. Different fungi, different fungicides.